Instructions - Parts List
®
High-Flo Pumps
311211L
Designed for low pressure, medium volume circulation of finishing materials.
Do not use with caustics, acids, abrasive line strippers, and other similar fluids.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
List of Models.
Related Manuals
Part No. Description
311238
308330
311690
308048
NXT Air Motor manual
Viscount I Plus Hydraulic Motor manual
High-Flo Lower manual
Viscount II Hydraulic Motor manual
NXT Air-Powered
Pump Shown
Patent Pending
TI8354a
II 2 G
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Models
Models
NXT Air-Powered Pumps
Your model number is marked on the pump identification plate located toward the rear of the air motor. To determine
the model number of your pump from the following matrix, select the six digits which describe your pump. The first
digit is always J for circulation pumps. The remaining five digits define the construction. For example, a circulation
pump with carbon steel construction, a 2.0:1 ratio, low noise exhaust, no communication option, npt fittings, and
J
C
20
L
1
First
Digit
Second Digit
Third and Fourth Digit
Fifth Digit
Sixth Digit
Maximum
Fluid
Motor Lower
Pressure
psi (MPa, bar)
Communi-
cation
Low Noise none
Rod and
Fittings Cylinder
Material
Size
Size
Exhaust
C Carbon Steel
20 2200
2000
200 (1.4, 14.0)
L
1 npt
Chromex/
Chrome
Chromex/
MaxLife
™
S Stainless Steel 30 2200
35 3400
1500
2000
1000
1500
300 (2.1, 21.0) M Low Noise
2 npt
DataTrak
none
340 (2.3, 23.0)
400 (2.8, 28.0)
460 (3.2, 32.0)
R
S
Remote
Remote
3 bspp*
4 bspp*
Chromex/
Chrome
Chromex/
MaxLife
J
(all
circulation
pumps)
™
40 2200
DataTrak
45 3400
5 tri-
clamp
6 tri-
clamp
7 npt
Chromex/
Chrome
Chromex/
MaxLife
Chromex/
Nitride
XX = X.X:1 ratio
Viscount I Plus Hydraulic-Powered Pumps
Maximum Pump
Working Pressure Connection
Rod
Cylinder
High-Flo Lower
Model No. Series
psi (MPa, bar)
Style
Material
Material
Material (see manual 311690)
253642
253643
253644
253645
253646
253647
253648
253649
253650
253651
253652
253653
253654
253655
A
A
A
A
A
A
A
A
A
A
A
A
A
A
300 (2.1, 21)
225 (1.6, 16)
300 (2.1, 21)
225 (1.6, 16)
300 (2.1, 21)
225 (1.6, 16)
300 (2.1, 21)
225 (1.6, 16)
300 (2.1, 21)
225 (1.6, 16)
300 (2.1, 21)
225 (1.6, 16)
300 (2.1, 21)
225 (1.6, 16)
npt
npt
sst
sst
sst
sst
cst
cst
sst
sst
sst
sst
sst
sst
sst
sst
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chrome
Chrome
MaxLife
MaxLife
Nitride
253033
253034
253568
253569
253061
253062
253423
253085
253398
253397
253520
253521
253523
253524
npt
npt
npt
npt
Nitride
bspp*
bspp*
bspp*
bspp*
tri-clamp
tri-clamp
tri-clamp
tri-clamp
Chrome
Chrome
MaxLife
MaxLife
Chrome
Chrome
MaxLife
MaxLife
311211L
3
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Models
Viscount II Hydraulic Powered Pumps
Maximum Pump
Working Pressure Connection
Rod
Cylinder
High-Flo Lower
Model No. Series
psi (MPa, bar)
Style
Material
Material
Material (see manual 311690)
247355
247356
247357
247358
247359
247360
247361
A
A
A
A
A
A
A
460 (3.2, 32)
460 (3.2, 32)
460 (3.2, 32)
460 (3.2, 32)
460 (3.2, 32)
460 (3.2, 32)
460 (3.2, 32)
npt
npt
sst
cs
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chromex
Chrome
Chrome
Chrome
MaxLife
Chrome
MaxLife
MaxLife
253035
253063
253086
253396
253522
253525
253570
bspp*
bspp*
tri-clamp
tri-clamp
npt
sst
sst
sst
sst
sst
4
311211L
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Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
•
•
Use equipment only in well ventilated area.
Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
•
•
Keep work area free of debris, including solvent, rags and gasoline.
Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
•
•
•
•
Ground all equipment in the work area. See Grounding instructions.
Use only grounded hoses.
Hold gun firmly to side of grounded pail when triggering into pail.
If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
•
Keep a working fire extinguisher in the work area.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
•
Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
•
•
Tighten all fluid connections before operating the equipment.
Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•
•
Do not operate the unit when fatigued or under the influence of drugs or alcohol.
Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
•
•
Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS forms from distributor or retailer.
Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’s replacement parts only.
•
•
•
•
•
•
Do not alter or modify equipment.
Use equipment only for its intended purpose. Call your distributor for information.
Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
Do not kink or over bend hoses or use hoses to pull equipment.
Keep children and animals away from work area.
Comply with all applicable safety regulations.
311211L
5
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Warnings
WARNING
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
•
•
•
Keep clear of moving parts.
Do not operate equipment with protective guards or covers removed.
Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
•
•
•
Read MSDS’s to know the specific hazards of the fluids you are using.
Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
Always wear impervious gloves when spraying or cleaning equipment.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
•
•
•
•
Protective eyewear
Clothing and respirator as recommended by the fluid and solvent manufacturer
Gloves
Hearing protection
6
311211L
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Installation
Installation
Object being sprayed: follow local code.
Grounding
Solvent pails used when flushing: follow local code.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a nonconductive sur-
face, such as paper or cardboard, which interrupts
grounding continuity.
The equipment must be grounded. Grounding reduces
the risk of static and electric shock by providing an
escape wire for the electrical current due to static build
up or in the event of a short circuit.
To maintain grounding continuity when flushing or
relieving pressure: hold metal part of the spray gun
firmly to the side of a grounded metal pail, then trigger
the gun.
Pump: Use a ground screw (Z) and lockwasher on the
motor to attach ground wire 244524 (Y). Tighten the
screw securely. Connect the other end of the ground
Z
Y
TI8250a
FIG. 1
Air and fluid hoses: use only electrically conductive
hoses with a maximum of 500 ft. (150 m) combined
hose length to ensure grounding continuity. Check the
electrical resistance of hoses. If total resistance to
ground exceeds 29 megohms, replace hose immedi-
ately.
Air compressor: follow manufacturer’s recommenda-
tions.
Hydraulic power supply: follow manufacturer’s recom-
mendations.
Surge tank: use a ground wire and clamp.
Spray gun: ground through a connection to a properly
grounded fluid hose and pump.
Fluid supply container: follow local code.
311211L
7
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Installation
Hydraulic-Powered Pumps
Accessories
Install the following accessories in the order shown in
Hydraulic Power Supply
CAUTION
Air-Powered Pumps
The hydraulic power supply must be kept clean at all
to avoid damage to the motor and hydraulic power
supply.
Accessory Air Control Kits are available for the NXT
Air Motor. The kits include a master air valve, air
regulator, and filter. Order the kits separately. See
manual 311239 for more information.
1. Blow out hydraulic lines with air and flush thor-
oughly before connection to the motor.
2. Plug hydraulic inlets, outlets, and line ends when
disconnecting them for any reason.
Air Line
•
Bleed-type master air valve (M): required in your
system to relieve air trapped between it and the air
motor when the valve is closed.
Be sure the power supply can provide sufficient power to
the motor. Be sure the power supply is equipped with a
suction filter to the hydraulic pump.
Hydraulic Supply Line
•
For Viscount I Plus motors, the hydraulic inlet
on the motor is 3/4 in., 37° flare. Use a mini-
mum 1/2 in. (13 mm) ID hydraulic supply line
(K).
Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing or
moving parts.
Be sure the valve is easily accessible from the pump
and located downstream from the air regulator. Be sure
the air bleed hole points away from the operator.
•
For Viscount II motors, use a minimum 13 mm
(1/2 in.) ID supply line supply line (K). The
motor has a 3/4 npt(f) hydraulic oil supply fit-
ting.
•
•
Supply line shutoff valve (S): isolates the motor
The air motor is rated to 100 psi (0.7 MPa, 7.0 bar). If
you will apply more than 100 psi (0.7 MPa, 7.0 bar) to
the system, install a safety relief valve between the
bleed-type master air valve and the air motor.
Hydraulic fluid pressure gauge (P): monitors the
hydraulic oil pressure to the motor to avoid over-
pressurizing the motor or lower.
•
•
•
Pump air regulator (L): to control pump speed and
outlet pressure. Locate close to the pump.
•
•
Pressure- and temperature-compensated flow
control valve (T): prevents the motor from running
too fast, which can damage it.
Air line filter (K): removes harmful dirt and mois-
ture from compressed air supply.
Pressure reducing valve (N), which has a drain
line (M) running to the return line (K): controls the
hydraulic pressure to the motor.
Second bleed-type air valve (M): isolates air line
accessories for servicing. Locate upstream from all
other air line accessories.
8
311211L
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Installation
Hydraulic Return Line
All Pumps
•
For Viscount I Plus motors, the hydraulic outlet
Fluid Line
on the motor is 7/8 in., 37° flare. Use a mini-
mum 5/8 in. (16 mm) ID hydraulic return line
(J).
•
Fluid filter: with a 60 mesh (250 micron) stainless
steel element to filter particles from the fluid as it
leaves the pump.
•
For Viscount II motors, use a minimum 22 mm
(7/8 in.) ID return line (J). The motor has a 1 in.
npt(f) hydraulic oil return fitting.
•
Fluid drain valve (U): required in your system, to
relieve fluid pressure in the hose and gun.
•
Return line shutoff valve (R): isolates the motor
when servicing the system.
CAUTION
•
•
Fluid shutoff valve (D): shuts off fluid flow.
To avoid damage to the pump, never use the return
line shutoff valve to control the hydraulic flow. Do not
install any flow control devices on the hydraulic return
line.
Fluid pressure regulator: for more precise adjust-
ment of the fluid pressure.
•
•
•
Gun or valve: to dispense fluid.
•
Return fluid filter (J): removes residue from the
hydraulic fluid to help keep the system running
smoothly (10 micron size).
Fluid line swivel: for easier gun movement.
Suction kit: enables the pump to draw fluid from a
container.
•
Inlet and outlet seals: prevent leakage in BSPP
models. Order 193423 for 1-1/2 in. inlet seal and
193422 for 1-1/4 in. outlet seal.
311211L
9
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Installation
Air-Powered Pumps Typical Installation
M
J
M
K
L
N
D
B
G
D
E
N
F
A
D
C
TI8398a
FIG. 2: Typical Installation
Key:
A
B
C
D
E
F
Mix Tank
Pump Stand
Fluid Supply Line; 1-1/2 in. (38 mm) minimum diameter
Fluid Shutoff Valve
Fluid Line; 1 in. (25 mm) minimum diameter
Surge Tank Stand
G
H
J
Surge Tank
Air Supply Line
K
L
Air Line Filter
Air Regulator and Gauge
M
N
Bleed-Type Master Air Valve (required)
Fluid Drain Valve (required)
10
311211L
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Installation
Hydraulic-Powered Pumps Typical Installation
E
L
K
S
N
P
E
R
M
J
T
U
D
G
A
D
B
U
F
C
D
TI8399a
FIG. 3: Typical Installation
Key:
A
B
C
D
E
F
Mix Tank
Pump Stand
U
Y
Fluid Drain Valve (required)
Fluid Supply Line; 1-1/2 in. (38 mm) minimum diameter
Fluid Shutoff Valve
Fluid Line; 1 in. (25 mm) minimum diameter
Surge Tank Stand
G
J
Surge Tank
10 Micron Return Filter
K
L
Hydraulic Return Line; 5/8 in. (16 mm) minimum diameter
Hydraulic Supply Line; 1/2 in. (13 mm) minimum diameter
Drain Line
Pressure Reducing Valve
Hydraulic Pressure Gauge
Return Line Shutoff Valve
Supply Line Shutoff Valve
Flow Control Valve
M
N
P
R
S
T
311211L
11
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Operation
Operation
Pressure Relief Procedure
Pump Operation
1. Engage trigger lock.
•
In a circulation system, the pump operates con-
2. Air-Powered Pumps only: Close the bleed-type
tinuously until the power supply is shut off.
master air valve.
CAUTION
Hydraulic-Powered Pumps only: Shut off the
hydraulic supply line valve (S) first, then the return
line valve (R).
Do not allow the pump to run quickly for a long period
of time as this may damage the packings.
•
•
•
In a direct-supply system, the pump starts
when the gun is opened, and stops when the
gun is closed.
3. Disengage the trigger lock.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
Perform a stall test periodically to ensure the
piston seal is in good working condition and
prevent system overpressurization:
5. Engage the trigger lock.
6. Open all fluid drain valves in the system, having
waste containers ready to catch drainage. Leave the
drain valves open until you are ready to spray again.
Close the fluid shutoff valve (D) closest to the
pump on the downstroke and be sure that the
pump stalls. Open the fluid shutoff valve to
restart the pump. Close the fluid shutoff valve
(D) closest to the pump on the upstroke and be
sure that the pump stalls.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after follow-
ing the steps above, VERY SLOWLY loosen the tip
guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction.
Stop the Pump at the Bottom of
Its Stroke
CAUTION
Hydraulic-Powered Pumps only: When shutting down
the hydraulic system, always shut off the hydraulic
supply line shutoff valve (S) first, and then the return
line shutoff valve (R) to prevent overpressurizing the
motor or its seals. When starting the hydraulic sys-
tem, open the return line shutoff valve first.
Relieve the pressure when you stop the pump for any
reason. Stop the pump on the downstroke, before the air
motor changes over.
Flush Before Using Equipment
CAUTION
The equipment was tested with lightweight oil, which is
left in the fluid passages to protect parts. To avoid con-
taminating your fluid with oil, flush the equipment with a
compatible solvent before using the equipment. See
Failure to stop the pump at the bottom of its stroke
allows fluid to dry on the piston rod, which can cause
damage to the throat packings when the pump is
restarted.
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
Hydraulic-Powered Pumps only: Always shut off the
supply line shutoff valve (S) first, and then the
return line shutoff valve (R). This is to prevent over-
pressurizing the motor or its seals.
12
311211L
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Maintenance
Maintenance
Excessive Leaking at Throat
Preventive Maintenance
Schedule
The operating conditions of your particular system
determine how often maintenance is required. Establish
a preventive maintenance schedule by recording when
and what kind of maintenance is needed, and then
determine a regular schedule for checking your system.
Your maintenance schedule should include the follow-
ing:
If you see excessive leaking at the throat, tighten the
lem, replace the throat packings, piston rod, or both See
manual 311690.
NXT Air-Powered
Pump Shown
Flushing
•
Flush before shutting down the system for an
extended period of time.
1
packing nut
•
•
Flush before repairing the pump, if possible.
Flush before fluid can dry out, settle, or set up
in the equipment.
Air Line Filter
1
Torque to 15-20 ft-lb (20-27 N•m).
TI8354a
Drain and clean as necessary.
FIG. 4
Hydraulic Power Supply Check
Carefully follow the hydraulic power supply manufac-
turer's recommendations on reservoir and filter cleaning,
and periodic changes of hydraulic fluid.
Mix Tank Volume
Don't let the mix tank run dry. When the tank is empty,
the pump demands more power as it tries to suck in
some fluid. This causes the pump to run too fast, which
can seriously damage the pump.
Packing Nut Tightness
Check the packing nut (21) tightness every few days at
startup and then weekly throughout the life of the throat
seal. The packing nut should be tight enough to stop
To check the adjustment of the packing nut, stop the
pump and relieve fluid pressure. Loosen the packing nut
until it turns freely. Tighten the nut firmly and then turn
the nut another 1/4 turn. If you have a torque wrench,
tighten the packing nut to 30 ft-lb (40 N•m), then back off
and re-tighten to 15-20 ft-lb (20-27 N•m).
311211L
13
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Troubleshooting
Troubleshooting
1. Relieve the pressure.
2. Check all possible problems and solutions before
disassembling pump.
PROBLEM
CAUSE
SOLUTION
Pump output low on both strokes.
Restricted air or hydraulic supply lines.
Clear any obstructions; be sure all shutoff
valve are open; increase pressure, but do
not exceed maximum working pressure.
Exhausted fluid supply.
Refill and reprime pump.
Clear.
Clogged fluid outlet line, valves, etc.
Worn piston packing.
Replace. See lower manual 311690.
Check and repair.
Pump output low on only one stroke.
Pump operates erratically.
Held open or worn ball check valves.
Worn piston packings.
Replace. See lower manual 311690.
Refill and reprime pump.
Check and repair.
Exhausted fluid supply.
Held open or worn ball check valves.
Worn piston packing.
Replace. See lower manual 311690.
Excessive hydraulic fluid supply pressure See Viscount I Plus motor manual
to Viscount motor.
308330 or Viscount II manual 308048.
Pump will not operate.
Restricted air or hydraulic supply lines.
Clear any obstructions; be sure all shut
off valves are open; increase pressure,
but do not exceed maximum working
pressure.
Exhausted fluid supply.
Refill and reprime pump.
Clear.
Clogged fluid outlet line, valves, etc.
Damaged air motor or hydraulic motor.
See air motor manual 311238 or hydrau-
lic motor manual 308330 or 308048.
Fluid dried on piston rod.
Disassemble and clean pump. See lower
manual 311690. In future, stop pump at
bottom of stroke.
Pump will not prime
Suction line clogged.
Clear. Flush more frequently.
Check and repair.
Held open or worn ball check valves.
Piston assembled with wrong nut.
Worn piston rod or throat packings.
Use only the large, round, special nut.
Replace. See lower manual 311690.
Check and repair.
Excessive throat leakage.
Pump will not stall when fluid is shut off. Warn ball check valves.
Worn piston packing.
Replace. See lower manual 311690.
14
311211L
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Repair
Repair
tie rods. Tighten the locknuts and torque to 50-55
ft-lb (68-75 N•m).
•
•
•
To service the lower, see manual 311690.
3. Insert the collars (G) into the coupling nut (K).
Tighten the coupling nut onto the piston rod (H) and
torque to 90-100 ft-lb (122-135 N•m).
To service the air motor, see manual 311238.
To service the Viscount I Plus hydraulic motor,
see manual 308330.
4. Flush and test the pump before reinstalling it in the
system. Connect hoses and flush the pump. While it
is pressurized, check for smooth operation and
leaks. Adjust or repair as necessary before reinstall-
ing in the system. Reconnect the pump ground wire
before operating.
•
To service the Viscount II hydraulic motor, see
manual 308048.
Disconnect the Lower
To service the lower, follow the procedure on this page,
and disassemble the pump as described in manual
311690. To disconnect pump from an electric circulation
assembly, EPXXXX, see manual 311594.
NXT Pump
Shown
E
In stand or wall-mounted installations, you do not
have to remove the entire pump from its mounting.
F
2
C
1. Relieve the pressure, see Pressure Relief Proce-
3
G
1
Torque to 90-100 ft-lb
1
K
(122-135 N•m).
3
H
2. Disconnect the hoses from the lower and plug the
ends to prevent fluid contamination.
2
Torque to 50-60 ft-lb
(68-81 N•m).
3
Apply lubricant.
3. Loosen the coupling nut (K) and remove the collars
(G). Remove the coupling nut from the piston rod
(H). Unscrew the locknuts (B) from the tie rods (C).
Pull the lower (D) off the motor (E). See FIG. 5 and
FIG. 6.
D
2
B
TI8394b
Reconnect the Lower
FIG. 5
If the coupling rod (F) and tie rods (C) have been
disassembled from the motor, see Reassemble the
Coupling Rod and Tie Rods to the Motor on page
16.
1. Assemble the coupling nut (K) to the piston rod (H).
2. Orient the lower (D) to the motor (E). Position the
lower on the tie rods (C). Lubricate the threads of
the tie rods. Screw the tie rod locknuts (B) onto the
311211L
15
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Repair
4. Align the lower (D) with the tie rods (C) and loosely
install the tie rod locknuts (B).
5. Insert the collars (G) and screw the coupling nut (K)
onto the coupling rod (F) and torque to 90-100 ft-lb
(122-135 N•m).
Viscount I Plus
Pump Shown
E
6. For Viscount I Plus pumps, torque the holding the
adapter plate (J) to the motor (E) to 15-17 ft-lb
(20-23 N•m). For Viscount I Plus and Viscount II
pumps, torque the tie rod locknuts (B) to 50-55 ft-lb
(68-75 N•m).
J
A
F
3
C
1
Viscount II 460
Pump Shown
G
K
H
2
1
Torque to 90-100 ft-lb
(122-135 N•m).
B
E
D
2
3
Torque to 50-55 ft-lb
(68-75 N•m).
Lubricate threads.
J
TI7674b
3
2
FIG. 6
N
C
3
F
Reassemble the Coupling Rod
and Tie Rods to the Motor
M
G
K
1
2
H
Use this procedure only if the coupling rod (F) and
tie rods (C) have been disassembled from the
motor, to ensure proper alignment of the motor
shaft to the piston rod.
B
D
1
2
3
Torque to 90-100 ft-lb
(122-135 N•m).
Torque to 50-55 ft-lb
(68-75 N•m).
1. Loosen, but do not remove, the screws holding the
adapter plate (J) to the motor (E), on Viscount I Plus
pumps. See FIG. 6. For Viscount II pumps, torque
screw (N) to 50-55 ft-lb (68-75 N•m) into motor (E).
Lubricate threads.
TI10466a
FIG. 7
2. Screw the tie rods (C) into the adapter plate (J) and
torque to 50-55 ft-lb (68-75 N•m). On Viscount I Plus
pumps, the tie rods will engage threaded holes in
the base of the motor. Viscount II pumps will engage
into the adapter plate (J).
3. Fill the cavity in the bottom of the motor shaft with
grease. Screw the coupling rod (F) into the motor
shaft until the pin holes align. Install the pin (A) in
the first hole from the end of the coupling. On Vis-
count II pumps, torque the coupling nut (M) into the
motor shaft.
16
311211L
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Repair
311211L
17
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Parts
Parts
Common Parts
NXT Pumps
Ref.
No. Description
Part No. Qty.
101 MOTOR, NXT, see manual 311238
see table,
page 19
1
101
102 LOWER, High-Flo, see manual 311690 see table,
page 19
1
103 NUT, coupling
104 COLLAR, coupling
105 ADAPTER, coupling
106 TIE ROD, 14.25 in. (362 mm) between 15G924
shoulders
184059
184128
15H369
1
2
1
3
107 NUT, lock, hex; 9/16-12 unc
108 COVER, moisture
108683
247362
3
1
108
105
106
104
103
102
107
TI8394b
18
311211L
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Parts
Parts That Vary by Model
101
102
High-Flo Lower
101
102
Air-Powered
Pump
Air-Powered
NXT Air Motor
(see page 3) (see manual 311238) (see manual 311690)
Pump
NXT Air Motor
High-Flo Lower
JS35L2
JS35L3
JS35L4
JS35L5
JS35L6
JS35M1
JS35M2
JS35M3
JS35M4
JS35M5
JS35M6
JS35R1
JS35R2
JS35R3
JS35R4
JS35R5
JS35R6
JS35S1
JS35S2
JS35S3
JS35S4
JS35S5
JS35S6
JS40L1
JS40L2
JS40L3
JS40L4
JS40L5
JS40L6
JS40M1
JS40M2
JS40M3
JS40M4
JS40M5
JS40M6
JS40R1
JS40R2
JS40R3
JS40R4
JS40R5
JS40R6
JS40S1
JS40S2
JS40S3
JS40S4
JS40S5
JS40S6
JS45L1
JS45L2
JS45L3
JS45L4
JS45L5
JS45L6
JS45M1
JS45M2
JS45M3
JS45M4
JS45M5
JS45M6
N34LN0
N34LN0
N34LN0
N34LN0
N34LN0
N34LT0
N34LT0
N34LT0
N34LT0
N34LT0
N34LT0
N34RN0
N34RN0
N34RN0
N34RN0
N34RN0
N34RN0
N34RT0
N34RT0
N34RT0
N34RT0
N34RT0
N34RT0
N22LN0
N22LN0
N22LN0
N22LN0
N22LN0
N22LN0
N22LT0
N22LT0
N22LT0
N22LT0
N22LT0
N22LT0
N22RN0
N22RN0
N22RN0
N22RN0
N22RN0
N22RN0
N22RT0
N22RT0
N22RT0
N22RT0
N22RT0
N22RT0
N34LN0
N34LN0
N34LN0
N34LN0
N34LN0
N34LN0
N34LT0
N34LT0
N34LT0
N34LT0
N34LT0
N34LT0
253570
253086
253396
253522
253525
253035
253570
253086
253396
253522
253525
253035
253570
253086
253396
253522
253525
253035
253570
253086
253396
253522
253525
253033
253568
253423
253398
253520
253523
253033
253568
253423
253398
253520
253523
253033
253568
253423
253398
253520
253523
253033
253568
253423
253398
253520
253523
253034
253569
253085
253397
253521
253524
253034
253569
253085
253397
253521
253524
JC20L1
JC20M1
JC30L7
JC30M7
JC35L1
JC35M1
JC40L7
JC40M7
JC45L7
JC45M7
JS20L1
JS20L2
JS20L3
JS20L4
JS20L5
JS20L6
JS20M1
JS20M2
JS20M3
JS20M4
JS20M5
JS20M6
JS20R1
JS20R2
JS20R3
JS20R4
JS20R5
JS20R6
JS20S1
JS20S2
JS20S3
JS20S4
JS20S5
JS20S6
JS30L1
JS30L2
JS30L3
JS30L4
JS30L5
JS30L6
JS30M1
JS30M2
JS30M3
JS30M4
JS30M5
JS30M6
JS30R1
JS30R2
JS30R3
JS30R4
JS30R5
JS30R6
JS30S1
JS30S2
JS30S3
JS30S4
JS30S5
JS30S6
JS35L1
N22LN0
N22LT0
N22LN0
N22LT0
N34LN0
N34LT0
N22LN0
N22LT0
N34LN0
N34LT0
N22LN0
N22LN0
N22LN0
N22LN0
N22LN0
N22LN0
N22LT0
N22LT0
N22LT0
N22LT0
N22LT0
N22LT0
N22RN0
N22RN0
N22RN0
N22RN0
N22RN0
N22RN0
N22RT0
N22RT0
N22RT0
N22RT0
N22RT0
N22RT0
N22LN0
N22LN0
N22LN0
N22LN0
N22LN0
N22LN0
N22LT0
N22LT0
N22LT0
N22LT0
N22LT0
N22LT0
N22RN0
N22RN0
N22RN0
N22RN0
N22RN0
N22RN0
N22RT0
N22RT0
N22RT0
N22RT0
N22RT0
N22RT0
N34LN0
253063
253063
253062
253062
253063
253063
253061
253061
253062
253062
253035
253570
253086
253396
253522
253525
253035
253570
253086
253396
253522
253525
253035
253570
253086
253396
253522
253525
253035
253570
253086
253396
253522
253525
253034
253569
253085
253397
253521
253524
253034
253569
253085
253397
253521
253524
253034
253569
253085
253397
253521
253524
253034
253569
253085
253397
253521
253524
253035
311211L
19
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Parts
101
102
Air-Powered
Pump
NXT Air Motor
High-Flo Lower
(see page 3) (see manual 311238) (see manual 311690)
JS45R1
JS45R2
JS45R3
JS45R4
JS45R5
JS45R6
JS45S1
JS45S2
JS45S3
JS45S4
JS45S5
JS45S6
N34RN0
N34RN0
N34RN0
N34RN0
N34RN0
N34RN0
N34RT0
N34RT0
N34RT0
N34RT0
N34RT0
N34RT0
253034
253569
253085
253397
253521
253524
253034
253569
253085
253397
253521
253524
20
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Parts
Viscount I Plus Pumps
Common Parts
Ref.
No. Description
Part No. Qty.
101 MOTOR, Viscount 1+, see manual
308330
102 LOWER, High-Flo, see manual 311690 see table,
below
103 TIE ROD, 14.25 in. (362 mm) between 15G924
shoulders
261466
1
1
3
101
104 NUT, lock, hex; 9/16-12 unc
105 NUT, coupling
106 COLLAR, coupling
107 PIN, cotter
108 ADAPTER, coupling
109 SCREW, cap
110 WASHER, lock
111 PLATE, adapter
108683
184059
184128
100103
15H838
100001
100214
189206
3
1
2
1
1
4
4
1
111
Parts That Vary by Model
102
Hydraulic-Powered Pump
High-Flo Lower
(see manual 311690)
103
107
110
109
253642
253643
253644
253645
253646
253647
253648
253649
253650
253651
253652
253653
253654
253655
253033
253034
253568
253569
253061
253062
253423
253085
253398
253397
253520
253521
253523
253524
108
106
105
102
104
TI7674b
311211L
21
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Parts
Viscount II 460 Pumps
Common Parts
Ref.
No. Description
Part No. Qty.
101 MOTOR, Viscount II, see manual
308048
102 LOWER, High-Flo, see manual 311690 see table,
below
103 TIE ROD, 14.25 in. (362 mm) between 15G924
shoulders
223646
1
1
3
101
104 NUT, lock, hex; 9/16-12 unc
105 NUT, coupling
106 COLLAR, coupling
108 ADAPTER, coupling
109 SCREW, cap, socket hd
110 NUT, coupling
108683
184059
184128
15K736
C19789
183079
120558
3
1
2
1
3
1
1
111 BRACKET, mounting
Parts That Vary by Model
102
111
Hydraulic-Powered Pump
High-Flo Lower
(see manual 311690)
247355
247356
247357
247358
247359
247360
247361
253035
253063
253086
253396
253522
253525
253570
109
103
108
110
106
105
104
102
TI10467a
22
311211L
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Dimensions
Air-Powered Pumps
Dimensions
Approx.
Weight
lb (kg)
A
B
Pump Model
in. (mm)
in. (mm)
NXT cst
45.60 (1158) 28.78 (731)
96 (43)
Hydraulic-Powered Pumps
A
Approx.
Weight
lb (kg)
B
Pump Model
in. (mm)
in. (mm)
Viscount I Plus cst 49.00 (1245) 28.78 (731) 76 (35)
Viscount II 53.72 (1365) 28.78 (731) 144 (65)
A
B
TI8354a
311211L
23
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Pump Mounting Hole Diagram
Pump Mounting Hole Diagram
Viscount I Plus Models
NXT 2200
Four 3/8-16
Mounting Holes
Gasket
161806
3.938 in.
(100 mm)
9.75 in.
(247.7 mm)
Three 5/8-11 Tie
Rod Holes
5.906 in. (150 mm)
6.750 in.
(172 mm)
x 120° Bolt Circle
TI8071A
NXT 3400
Four 3/8-16
Mounting Holes
Four 0.44 in. (11.1 mm)
diameter holes on 10.5 in.
bolt circle
Viscount II Models
6.186 in.
(157 mm)
4X 3/8-16 UNC - 2B
7.43 in.
(188 mm)
Six 5/8-11 Tie
Rod Holes
8.000 in. (203 mm)
x 120° Bolt Circle
6.186 in.
(157 mm)
5.906 in. (150 mm)
x 120° Bolt Circle
6.186 in.
(157 mm)
TI8070A
7.43 in.
(188 mm)
6.186 in.
(157 mm)
24
311211L
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Technical Data
Technical Data
NXT
Maximum
Fluid
Fluid Flow at
Maximum
Working Pressure
psi (MPa, bar)
Air Operating
Range
psi (MPa, bar)
60 cycles per Pump Cycles Temperature
minute
per Gallon
(Liter)
Rating
°F (°C)
Model
Air Consumption
gpm (lpm)
JX20XX
JX30XX
JX35XX
JX40XX
JX45XX
200 (1.4, 14)
300 (2.1, 21)
350 (2.4, 24)
400 (2.8, 28)
450 (3.1, 31)
32 (121)
23 (88)
32 (121)
17 (64)
23 (88)
1.9 (0.5)
2.6 (0.7)
1.9 (0.5)
3.6 (0.9)
2.6 (0.7)
100 (0.7, 7.0)
See Performance Chart
150° (66°)
See 311238 for Sound information.
Viscount I Plus Pumps
Maximum
Working
Pressure
Maximum
Hydraulic Working
Pressure
Maximum
Fluid Flow at
60 cycles per
minute per Gallon Temperature
gpm (lpm)
Pump
Cycles
Maximum
Fluid
Hydraulic
Motor Fluid
Temperature
Hydraulic Oil
Consumption
Model
psi (MPa, bar)
psi (MPa, bar)
(Liter)
Rating
253642 300 (2.1, 21)
253643 225 (1.6, 16)
253644 300 (2.1, 21)
253645 225 (1.6, 16)
253646 300 (2.1, 21)
253647 225 (1.6, 16)
253648 300 (2.1, 21)
253649 225 (1.6, 16)
253650 300 (2.1, 21)
253651 225 (1.6, 16)
253652 300 (2.1, 21)
253653 225 (1.6, 16)
253654 300 (2.1, 21)
253655 225 (1.6, 16)
14 (54)
20 (74)
14 (54)
20 (74)
14 (54)
20 (74)
14 (54)
20 (74)
14 (54)
20 (74)
14 (54)
20 (74)
14 (54)
20 (74)
4.2 (1.1)
3.1 (0.8)
4.2 (1.1)
3.1 (0.8)
4.2 (1.1)
3.1 (0.8)
4.2 (1.1)
3.1 (0.8)
4.2 (1.1)
3.1 (0.8)
4.2 (1.1)
3.1 (0.8)
4.2 (1.1)
3.1 (0.8)
See Performance
Chart
1500 (10.3, 103)
134°F (54°C)
150°F (66°C)
Viscount II Pumps
Maximum
Working
Pressure
Maximum
Hydraulic Working
Pressure
Maximum
Hydraulic
Motor Fluid
Temperature
Fluid Flow at
60 cycles per
minute
Pump
Cycles
per Gallon Temperature
(Liter) Rating
Maximum
Fluid
Hydraulic Oil
Consumption
Model
psi (MPa, bar)
psi (MPa, bar)
gpm (lpm)
247355
247356
247357
247358 460 (3.2, 32)
247359
See Performance
Chart
1200 (8.3, 83)
134°F (54°C)
31.7 (120)
1.89 (0.50) 150°F (66°C)
247360
247361
311211L
25
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Performance Charts
Performance Charts
Air-Powered Pumps
Fluid Outlet Pressure - Black Curves
Air Consumption - Gray Curves
3
To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid
flow (gpm/lpm) and operating air pressure (psi/MPa/bar):
To find Pump Air Consumption (scfm or m /min.) at a specific
fluid flow (gpm/lpm) and air pressure (psi/MPa/bar):
1. Locate desired flow along bottom of chart.
1. Locate desired flow along bottom of chart.
2. Follow vertical line up to intersection with selected fluid
outlet pressure curve (black).
2. Read vertical line up to intersection with selected air con-
sumption curve (dashes).
3. Follow left to scale to read fluid outlet pressure.
3. Follow left to scale to read air consumption.
Key:
A
B
C
100 psi (0.7 MPa, 7.0 bar) air pressure
70 psi (0.49 MPa, 4.9 bar) air pressure
40 psi (0.28 Mpa, 2.8 bar) air pressure
2200cc NXT Air Motor, 1000cc High-Flo Lower
CYCLES PER MIN.
2200cc NXT Air Motor, 1500cc High-Flo Lower
CYCLES PER MIN.
10 15
20 24
28
32
SCFM (m3/min.)
50 (1.40)
14
39
0
5
0
20 26 33
45
SCFM (m3/min.)
70 (1.96)
7
psi (MPa, bar)
psi (MPa, bar)
300 (2.1, 21)
250 (1.7, 17)
200 (1.4, 14)
150 (1.0, 10)
450 (3.1, 31)
400 (2.8, 28)
350 (2.4, 24)
300 (2.1, 21)
250 (1.7, 17)
200 (1.4, 14)
150 (1.0, 10)
100 (0.7, 7)
50 (0.3, 3)
A
B
45 (1.26)
40 (1.12)
35 (0.98)
30 (0.84)
25 (0.7)
A
60 (1.68)
50 (1.40)
40 (1.12)
B
C
A
B
C
A
B
30 (0.84)
20 (0.56)
10 (0.28)
0 (0.0)
20 (0.56)
15 (0.42)
10 (0.28)
100 (0.7, 7) C
C
50 (0.3, 3)
5 (0.14)
0 (0.0)
0 (0, 0)
0 (0, 0)
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 gpm
(0.0) (7.0) (15.0)(22.5)(30.0)(37.9)(45.4)(53.0)
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 gpm
(0.0) (7.0) (15.0)(22.5)(30.0)(37.9)(45.4)(53.0)
(lpm)
(lpm)
FLUID FLOW
FLUID FLOW
26
311211L
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Performance Charts
3400cc NXT Air Motor, 1500cc High-Flo Lower
CYCLES PER MIN.
2200cc NXT Air Motor, 2000cc High-Flo Lower
CYCLES PER MIN.
24
15
10
20
0
4
14
17 21
0
24
8
11
5
32
28
SCFM (m3/min.)
SCFM (m3/min.)
psi (MPa, bar)
psi (MPa, bar)
500 (3.5, 35)
450 (3.1, 31)
400 (2.8, 28)
350 (2.4, 24)
300 (2.1, 21)
250 (1.7, 17)
200 (1.4, 14)
150 (1.0, 10)
100 (0.7, 7)
50 (0.3, 3)
250 (1.7, 17)
200 (1.4, 14)
150 (1.0, 10)
100 (0.7, 7)
50 (0.3, 3)
0 (0, 0)
80 (2.24)
40 (1.12)
A
B
C
70 (1.96)
35 (0.98)
A
B
60 (1.68)
50 (1.4)
30 (0.84)
25 (0.7)
40 (1.12)
30 (0.84)
20 (0.56)
10 (0.28)
0 (0.0)
20 (0.56)
15 (0.42)
10 (0.28)
5 (0.14)
0 (0.0)
A
B
A
B
C
C
C
0 (0, 0)
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 gpm
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 gpm
(0.0) (7.0) (15.0)(22.5)(30.0)(37.9)(45.4)(53.0)
(0.0) (7.0) (15.0)(22.5)(30.0)(37.9)(45.4)(53.0)
(lpm)
(lpm)
FLUID FLOW
FLUID FLOW
3400cc NXT Air Motor, 2000cc High-Flo Lower
CYCLES PER MIN.
11
21 24
4
14
0
8
17
psi (MPa, bar)
SCFM (m3/min.)
350 (2.4, 24)
60 (1.68)
A
300 (2.1, 21)
250 (1.7, 17)
50 (1.4)
40 (1.12)
B
C
200 (1.4, 14)
150 (1.0, 10)
100 (0.7, 7)
50 (0.3, 3)
0 (0, 0)
30 (0.84)
20 (0.56)
10 (0.28)
0 (0.0)
A
B
C
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 gpm
(0.0) (7.0) (15.0)(22.5)(30.0)(37.9)(45.4)(53.0)
(lpm)
FLUID FLOW
311211L
27
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Performance Charts
Viscount II 460 Pumps
Viscount II 460 - MR4Ball - 2000cc
Performance @ 600 1050 1200 PSIG
CYCLES PER MIN.
24 28
0
4
8
12
16
20
32
36
8
7
6
5
4
3
450 (3.1, 31)
400 (2.8, 28)
A
350 (2.4, 24)
300 (2.1, 21)
250 (1.7, 17)
B
C
200 (1.4, 14)
150 (1.0, 10)
100 (0.7, 7)
2
1
0
50 (0.3, 3)
0 (0, 0)
18.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0
16.0
(0.0) (7.0) (15.0) (22.5) (30.0) (37.9) (45.4) (53.0) (60.6)(68.1)
FLUID FLOW, gpm (lpm)
Key:
A
B
C
High PSIG
Mid PSIG
Low PSIG
311211L
29
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Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
This manual contains English. MM 311211
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2006, Graco Inc. is registered to ISO 9001
Revised 3/2009
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