Triplex Ceramic
Plunger Pump
OperatingInstructions/
Repair and Service
Manual
Model
GP7170-4000
Contents:
Installation Instructions:
Pump Specifications:
Exploded View:
page 2
page 3
page 4
page 5
pages 6-7
page 7
Parts List/Kits:
Repair Instructions:
Torque Specifications:
Recommended
Spare Parts List:
page 7
WarrantyInformation:
back page
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Specifications
Model GP7170-4000
U.S. .............................. Metric
Volume ................................................................. 84.5 GPM ..................... 320 LPM
Discharge Pressure ............................................. 1450 PSI ....................... 100 bar
Speed .......................................................................................................... Up to 700 RPM
Inlet Pressure.............................................................................................. Up to 90 PSI2 (10 bar)
Plunger Diameter................................................. 2.48” ............................. 63 mm
Plunger Stroke ..................................................... 2.05” ............................. 52mm
Crankshaft Diameter ........................................... 2.05” ............................. 52mm
Key Width ................................................................................................... 14mm
Crankshaft Mounting .................................................................................. Either side
Shaft Rotation ................................................................................ Top of pulley towards manifold
Temperature of Pumped Fluids............................ 140 oF ........................... 60oC
Inlet Ports ................................................................................................... (2) 1 1/4" NPT
Discharge Ports .......................................................................................... (2) 3/4" NPT
Weight .................................................................. 374 lbs. ......................... 170 kg
Crankcase Oil Capacity ....................................... 1.6 Gal. ......................... 6.0 liters
Fluid End Material....................................................................................... Stainless Steel
Consult the factory for special requirements that must be met if the pump is to
operate beyond one or more of the limits specified above.
GP7170 PULLEY SELECTION & HORSEPOWER
REQUIREMENTS
PUMP
PULLEY PULLEY
MOTOR
RPM GPM 500 PSI 750 PSI 1000 PSI 1500 PSI
12.75
12.75
12.75
12.75
7.00
9.20
11.45
12.75
300 36.0
400 49.0
500 60.0
700 84.5
12.9
17.5
21.4
30.2
19.3
26.3
32.1
45.3
25.7
35.0
42.9
60.4
38.6
52.5
64.3
90.5
HORSEPOWER RATINGS:
We recommend a 1.1 service factor be specified
when selecting an electric motor as the power
source.
The rating shown are the power require-
ments for the pump. Gas engine power
outputs must be approximately twice the
pump power requirements shown above.
To compute specific pump horsepower requirements,
use the following formula:
GPM X PSI
= hp
1400
3
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Exploded View - GP7170-4000
4
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GP7170-4000 PARTS LIST
ITEM PART
DESCRIPTION
Crankcase
OilFillerPlugAssembly
CrankcaseCover
Seal for Crankcase Cover
OilDipStick
O-Ring,DipStick
HexagonScrew
Spring Washer
QTY.
1
1
1
1
1
1
12
12
5
2
2
2
2
2
1-5
1
1
1
3
3
3
1
4
4
4
1
3
3
3
3
3
3
ITEM PART
DESCRIPTION
SealSleeve
O-RingforSealRetainer
Pressure Ring
DripReturnRing
O-Ring
Pressure Ring
Sleeve
Sleeve Support Ring
Seal Tension Spring
Seal Case
O-Ring
Discharge Casing
Stud Bolt
HexagonNut
ValveCasing
CylinderStud
ValveAssembly
ValveSeat
QTY.
3
3
3
3
3
3
9
3
3
3
6
1
8
8
1
4
6
6
6
6
6
6
6
3
6
6
8
1
1
1
2
2
1
1
1
1
1
1
2
4
5
8
9
10
11
06653
13000
07601
07602
07603
01009
22706
06725
38
39
40
41
42
43
44
45
46
47
47A
48
49
49A
50
50A
51
51A
51B
51C
51D
51E
51F
52
52A
53
54
55
55A
56
57
58
59A
60
05234
05235
05236
05237
05238
05239
05240
05241
05071
05242
06667
05243
06675
06958
05244
13162
05245
05246
07653
05247
12
07109-0400 DrainPlug
13
14
15
16
20
20A
21
22
23
24
25
28
30
07182
07607
07608
07184
07610
07611
07612
13405
07614
13182
13183
13184
06661
Gasket,DrainPlug
BearingCover
RadialShaftSeal
O-RingforBearingCover
TaperRollerBearing
FittingDisc(Shim)
Shaft Protector
Crankshaft
Key
Connecting Rod Assy.
Crosshead Assy.
Crosshead Pin
O-RingforValveSeat
ValvePlate
07732-0100 ValveSpring
CoverPlate
08281
05248
05249
07658
13173
05250
05251
22764
05252
05253
05254
06807
13151
SpacerPipe
30A
30B
30C
31
32
33
33A
33B
33C
34
07225-0100 HexagonScrew
ValveSpringGuide
Pressure Valve Adapter
O-Ring
Tension Spring
InnerHexagonScrew
Drip Return Connection
SerratedPin
DripReturnPlug
O-Ring
LeakageSeal
13136
08280
07623
07624
06662
13286
05229
05230
13137
05231
07667
05232
07664
07665
05233
Grommet
Disc
EyeBolt
RadialShaftSeal
SealRetainer
O-RingforSealRetainer
CirclipforSealRetainer
FittingDisc
OilScraper(Flinger)
Plunger Pipe Assembly (36A-36D) 3
Plunger Base
PlungerPipe
Tensioning Screw
CopperRing
IntermediateCasing
36
SteelRing(Gasket)
Plug1-1/4”BSP
36A
36B
36C
36D
37
3
3
3
3
1
61
12252-5000 Plug2-1/2”BSP
66
67
13362
13358
07662
Disc for Crankshaft
HexagonScrew
Slide Hammer Tool (not shown) 1
GP7170-4000 REPAIR KITS
Plunger Packing Kit # 09610
Inlet ValveAssembly Kit # 09611
I
Item
39
42
44
47A
Part #
05235
05238
05240
05242
Description
O-Ring for Seal Retainer
O-Ring
V-Sleeve
O-Ring
Qty.
3
3
9
6
Item
Part #
05246
07653
05247
Description
Valve Seat
O-Ring for Valve Seat
Inlet Valve Seat
Qty.
1
1
1
1
51A
51B
51C
51D
51F
52A
07732-0100 Valve Spring
05248
07658
Valve Spring Guide
O-Ring
1
2
Oil Seal Kit # 09612
Item
32
33A
Part #
07624
07627
Description
Radial Shaft Seal
O-Ring
Qty.
3
3
5
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GP7170-4000 REPAIR INSTRUCTIONS
NOTE:
Always take time to lubricate all metal and non-metal parts with a light film of oil before reassembling. This step
will help ensure proper fit, at the same time protecting the pump non-metal parts (elastomers) from cutting and scoring.
To Check Valves
1) Loosen and remove screws (54 with a 10mm allen wrench.
2) Remove discharge casing (48) and valve tension springs (53).
3) Remove the discharge valves (51) by screwing supplied valve-puller into the top of the spacer pipe (51E) and firmly
sliding upward with the puller handle. NOTE: The pressure valve adapter (52) will typically come out attached to the
discharge valve. To remove, firmly grasp both pieces and rock them back and forth to break the O-ring seal on the O.D.
of the valve seat.
4) Remove the inlet valves using the same procedure as above.
5) Unscrew the valve seat (51A) from the spacer pipe (51E). Remove the valve spring (51D) and valve spring guide (51F)
and inspect for wear. Replace parts as necessary
6) Check surfaces of valve plate (51C), valve seat (51A), O-rings (51B) and replace worn parts.
7) To reinstall the inlet valves (51), screw the valve puller back into the top of the valve assembly (51). Lower the valve
into the chamber and press firmly into the bottom of the chamber to ensure the valve is seated properly. Install the
tension spring (53).
8) To reinstall the discharge valves, press the discharge valve (51) into the pressure valve adapter (52). Push the entire
assembly into the chamber. Reinstall the tension spring (53).
9) Reinstall the discharge casing (48) and tighten bolts (54) to 155 ft-lbs. in a criss-cross pattern starting with the
centermost 4 bolts and working outward.
To Change Seals
10) Loosen nuts (49A) with a 24mm socket wrench.
11) With a rubber mallet tap the back of the valve casing (50) and pull the valve casing off the stud bolt (49).
12) Remove cover plate (30) with a 10mm socket wrench.
13) By gripping hex flats, separate plunger assembly (36) from crosshead (25) by means of two open-end wrenches (size
22mm and 27mm).
CAUTION: Do not loosen the 3 plunger bases (36A) before the valve casing has been removed otherwise the
plunger assembly (36) could hit against the spacer pipe (52) when the pump is being turned.
14) Remove the intermediate casing (37) from the crankcase (1).
15) Use two screwdrivers to pry the seal case (47) out of the intermediate casing (37). Remove pressure ring (43), V sleeves
(44), sleeve support ring (45), seal tension spring (46), and O rings (47A). Inspect parts for wear and replace as neces-
sary.
16) Remove the seal sleeve (38), O ring (39), pressure ring (40), V sleeve (44), O ring (42) and drip return ring (41) from the
crankcase (1). Inspect parts for wear and replace as necessary.
17) Inspect the plunger pipe for cavitation, cracks, or any other signs of wear. If replacing plunger pipe, tighten plunger bolt
(36C) to 26 ft-lbs.
18) Reassemble all parts in reverse order taking care to lubricate all seals and O rings with silicone grease prior to installa-
tion. Reinstall plunger pipe assemblies (36) into intermediate casing (37). When installing the intermediate casing (37)
and valve casing (50) be sure that the parts rest on the studs (50A) and that they have not fallen out.
19) Reinstall valve casing (50) and tighten nuts (49A) to 103 ft-lbs.
To Change Oil Seals
20) Remove C-clip (33B) from crankcase (1) and remove seal retainer (33).
21) Remove O ring (33A) and radial shaft seal (32) and replace as necessary.
22) Reinstall seal retainer (33) and secure with C-clip (33B) in crankcase.
NOTE:
Seal life can be increased if the pretensioning allows for a little leakage. This assists lubrication and keeps
the seals cool. It is therefore not necessary to replace seals before the leakage becomes too heavy and causes output and
operating pressure to drop.
To Disassemble Gear End
23) Remove entire manifold and intermediate casing assembly using procedures described above. Take out plunger
assembly (36). Drain oil.
6
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GP7170-4000 REPAIR INSTRUCTIONS
24) After removing the C-clip (33B), pry out seal adapter (33) with a screwdriver.
25) Check seals (32) and surfaces of plunger base (25).
26) Remove crankcase cover (4). Loosen inner hexagon screws (24A) on the connecting rods (24) and push con rod halves
as far into the crosshead guide as possible.
CAUTION: Connecting rods (24) are marked for identification. Do not twist connecting rod halves. Connecting
rod is to be reinstalled in the same position on crankshaft journals.
27) Check surfaces of the connecting rod (24) and crankshaft (22).
28) Take out bearing cover (14) to one side and push out crankshaft (22) taking particular care that the connecting rod (24)
doesn’t bend.
29) Reassemble in reverse order: Regulate axial bearing clearance - minimum 0.1mm, maximum 0.15mm-by means of fitting
disc (20A). The crankshaft (22) should turn easily with little clearance. Tighten inner hexagon screws (24A) to 30 ft.-lbs.
CAUTION: Connecting rod (24) has to be able to be slightly moved sidewise at the stroke journals.
30) Reassemble cover (4) and seal (5) onto crankcase (1). Fasten with hexagon screws (10).
31) Reinstall shim (33C), and seal adapter (33) with radial shaft seal (32), and o-ring (33A) onto crankcase (1).
CAUTION: Radial shaft seal (32) must always be installed so that the seal-lip on the inside diameter faces the oil.
32) Reinstall remainder of fluid end as described above.
GP7170-4000 TORQUE SPECIFICATIONS
Position
36C
49A*
54
Item #
07664
13160
Description
Plunger Tensioning Screw
Nut
TorqueAmount (ft.-lbs.)
26
103
155
05250
Inner Hexagon Screw
*Important - Check torque bi-weekly on item 49A
Preventative Maintenance Check-List & Recommended Spare Parts List
Check
Daily
Weekly
50hrs
Every
500 hrs
Every
1500 hrs
Every
3000 hrs
Oil Level/Quality
Oil Leaks
Water Leaks
Belts, Pulley
Plumbing
X
X
X
X
X
Recommended Spare Parts
Oil Change
X
X
Plunger Spare Parts (1 kit/pump)
(See page 5 for kit list)
Oil Seal Kit (1 kit/pump)
(See page 5 for kit lit)
X
X
Valve Spare Parts (1 kit/pump)
(See page 5 for kit list)
X
7
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GIANT INDUSTRIES LIMITED WARRANTY
Giant Industries, Inc. pumps and accessories are warranted by the manufacturer to be free from
defects in workmanship and material as follows:
1. For portable pressure washers and car wash applications, the discharge manifolds
will never fail, period. If they ever fail, we will replace them free of charge. Our other
pump parts, used in portable pressure washers and in car wash applications, are
warranted for five years from the date of shipment for all pumps used in NON-SALINE,
clean water applications.
2. One (1) year from the date of shipment for all other Giant industrial and consumer
pumps.
3. Six (6) months from the date of shipment for all rebuilt pumps.
4. Ninety (90) days from the date of shipment for all Giant accessories.
Thiswarrantyislimitedtorepairorreplacementofpumpsandaccessoriesofwhichthe manufacturer’s
evaluation shows were defective at the time of shipment by the manufacturer. The following items
are NOT covered or will void the warranty:
1. Defects caused by negligence or fault of the buyer or third party.
2. Normal wear and tear to standard wear parts.
3. Use of repair parts other than those manufactured or authorized by Giant.
4. Improper use of the product as a component part.
5. Changes or modifications made by the customer or third party.
6. The operation of pumps and or accessories exceeding the specifications set forth
in the Operations Manuals provided by Giant Industries, Inc.
Liability under this warranty is on all non-wear parts and limited to the replacement or repair of those
products returned freight prepaid to Giant Industries which are deemed to be defective due to
workmanship or failure of material. A Returned Goods Authorization (R.G.A.) number and completed
warranty evaluation form is required prior to the return to Giant Industries of all products under
warranty consideration. Call (419)-531-4600 or fax (419)-531-6836 to obtain an R.G.A. number.
Repair or replacement of defective products as provided is the sole and exclusive remedy provided
hereunder and the MANUFACTURER SHALL NOT BE LIABLE FOR FURTHER LOSS, DAMAGES,
OR EXPENSES, INCLUDING INCIDENTAL AND CONSEQUENTIAL DAMAGES DIRECTLY OR
INDIRECTLY ARISING FROM THE SALE OR USE OF THIS PRODUCT.
THE LIMITED WARRANTY SET FORTH HEREIN IS IN LIEU OF ALL OTHER WARRANTIES OR
REPRESENTATION, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WAR-
RANTIESORMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSEANDALLSUCH
WARRANTIES ARE HEREBY DISCLAIMED AND EXCLUDED BY THE MANUFACTURER.
GIANT INDUSTRIES, INC., 900 N. Westwood Ave., P.O. Box 3187, Toledo, Ohio 43607
Copyright 2006 Giant Industries, Inc.
07/06 GP7170-4000.PM6
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