Snapper Lawn Mower S150X User Manual

Dealer Setup  
& Adjustment Instructions  
S150X - 21HP, 23HP, 25HP & 27HP  
48” & 52” Mower Deck  
This Dealer Setup Instruction covers the following products:  
TABLE OF CONTENTS:  
SETUP PROCEDURES  
Model No.  
5900686  
5900665  
5900696  
5900697  
Description  
S150XKAV2148, 21HP Kawasaki w/ 48” Mower  
S150XKAV2552, 25HP Kawasaki w/ 52” Mower  
S150XKOH2348 S/S, 23HP Kohler w/48” Mower  
S150XKOH2752 S/S, 27HP Kohler w/52” Mower  
Quick Setup List................................................................2  
Uncrating............................................................................3  
Battery Installation ............................................................3  
Tractor Assembly ..............................................................4  
Motion Control Handle Assembly ....................................4  
Seat Assembly.................................................................4  
Roll Bar Installation...........................................................5  
Check Fluid levels.............................................................7  
Check Engine Oil Level ...................................................7  
Check Hydraulic Oil Level................................................7  
Check Tire Pressure..........................................................7  
Check Mower Assembly ...................................................8  
Check Torque - Mower Blades........................................8  
Check Deck Rod Timing ...................................................9  
Deck Leveling Adjustment .............................................10  
Check Deck Drive Belt ....................................................11  
Lubrication.......................................................................12  
Adding Fuel......................................................................13  
Starting The Engine ........................................................13  
Perform Safety Checks...................................................14  
Functional Tests.............................................................14  
Safety Interlock System.................................................14  
ADJUSTMENT PROCEDURES  
ATTENTION SETUP PERSONNEL:  
The safety warnings provided in this guide and in  
the operator's manual included with the unit contain  
important information that must be obeyed when  
assembling, setting-up, operating, servicing,  
transporting, or storing the unit.  
These warnings are highlighted by the safety alert triangle  
symbol shown above, which signifies that an important safety  
message is being provided.  
You must read, understand, and follow these warnings and  
instructions, and use safe shop and work practices at all  
times while working on or around this unit and all other  
outdoor power equipment.  
Sections and items denoted by the Setup symbol  
provide the information necessary to fully assemble,  
test, and prepare the units described above for  
delivery to your customers.  
Seat Adjustment ..............................................................15  
Seat Adjustment (Suspension Seat)..............................15  
Motion Control Handle Adjustment...............................16  
Return-To-Neutral Adjustment.......................................17  
Neutral Adjustment .........................................................17  
Parking Brake Adjustment .............................................18  
A Quick Setup List is provided on page 2 of this booklet  
to help you identify and check that the items have been  
performed.  
Additional information concerning functional tests,  
general adjustment procedures, and the location of  
normal lubrication points are included in these  
instructions.  
Although all required lubrication and normal adjustments on  
factory-assembled components are done at the factory, this  
additional information is provided to assist you in ensuring that  
each unit is delivered to the customer in proper working order.  
5101096  
Rev. A  
TP 300-7343-A-M1-SP  
10/2007  
1
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Uncrating  
1. Using a reciprocating utility saw or equivalent, cut  
crate away from bottom skid. Remove crate. Remove  
shrink-wrap plastic.  
A
2. Cut nylon banding from front of the frame and rear  
rear bumper.  
IMPORTANT NOTE  
When cutting crate from bottom skid,  
use caution around tractor tires and  
mower rollers.  
Figure 1. Hydraulic System By-Pass  
A. Hydraulic Release Valve  
(left-hand pump shown)  
3. Open the hydraulic release valves. To open the  
release valves, turn the release valve, which is  
located on front of the pump, counter-clockwise 2 full  
turns MAX. See Figure 1 for valve location.  
A
4. Push down on the parking brake lever (A, Figure 2)  
to release the parking brake.  
5. Be sure there are no nails or sharp objects on the  
bottom skid to puncture the tractor’s tires. Roll the  
tractor forward off the bottom skid.  
6. After moving the tractor, re-engage the pumps (drive  
position) by turning the release valves clockwise and  
tighten to 80-120 in/lbs (9-13.5 N.m.).  
Figure 2. Disengaging the Parking Brake  
(lever shown in disengaged position)  
A. Parking Brake Lever  
Battery Installation  
WARNING  
BATTERY SAFETY RULES  
• Battery acid causes severe burns. Avoid contact  
with skin.  
• Wear eye protection while handling the battery.  
• To avoid an explosion, keep flames and sparks  
away from the battery, especially while charging.  
• When installing the battery cables, CONNECT  
THE POSITIVE (+) CABLE FIRST and the negative  
(-) cable last. If not done in this order, the  
positive terminal can be shorted to the frame by a  
tool.  
A
B
Connect Battery  
1. Connect the red positive battery cable (B, Figure 3)  
to the positive battery post.  
Figure 3. Connect the Battery  
A. Positive (+) Cable & Terminal  
B. Negative (-) Cable & Terminal  
2. Connect the black negative battery cable (A) to the  
negative battery post.  
10/2007  
3
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Tractor  
A
D
Assembly  
Motion Control Handle Assembly  
B
1. Remove the handles and mounting hardware from  
C
the handle bar box.  
2. Install the ground speed control handles (A, Figure 4)  
onto the control lever base using the 5/16-18 x 3/4”  
bolts, 5/16” lock washers and 5/16” flat washers (B,  
C, & D). Prior to tightening the bolts, align the  
handles with each other.  
NOTE: There is a LEFT-HAND and a RIGHT-HAND  
control handle. When assembled to the base, the  
handle base should be pointing towards the rear as  
shown in Figure 4.  
Figure 4. Install the Control Handle(s)  
A. Control Handle  
B. 5/16-18 x 3/4” Bolt(s)  
C. 5/16” Lock Washer(s)  
D. 5/16” Flat Washer(s)  
Seat Assembly  
1. Unpack the seat.  
A
2. Install the seat onto the seat mount plate (C, Figure  
5) and secure with the 5/16-18 nylock flange nuts (A).  
B
D
3. Connect the wire harness (B) to the seat switch (D)  
that is located in the bottom of the seat.  
C
A
Figure 5. Remove The Existing Seat  
A. 5/16-18 Nylock Flange Nuts  
B. Wire Harness  
C. Seat Mount Plate  
D. Seat Switch  
4
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
B
A
Roll Bar Assembly  
Install the Roll Bar  
1. Unpack the roll bar and hardware from the box.  
2. Remove the clevis pin (C, Figure 6) from the lanyard  
(A).  
C
3. Install the lanyard anchor (B) onto the lanyard as  
shown in Figure 6.  
Figure 6. Assemble the Retainer Pins  
A. Lanyard  
4. Reinstall the clevis pin on the lanyard.  
B. Lanyard Anchor  
C. Clevis Pin  
Assemble the Top Loop  
1. Install the plastic cap (B, Figure 7) into the end of the  
top loop tube (A). Repeat for other end of tube.  
B
2. Install the rubber stop (C) against the inside of the  
pivot mount. Repeat for other end of tube. See  
Figure 7.  
A
C
Figure 7. Assemble the Top Loop  
A. Top Loop Tube  
B. Plastic Cap  
C. Rubber Stop  
Install the Upright Tubes  
1. Remove the bolts and nuts on one side of the  
machine that secure the rear bumper for shipping.  
Save this hardware for reinstallation in Step 3.  
2. Place the roll bar upright tube onto the outside of the  
rear bumper (A, Figure 8). Refer to Figure 9 for the  
correct roll bar orientation.  
F
A
3. Refer to the insert in Figure 8. Loosely install a bolt  
with a flat washer through the both holes of the  
upright tube, rear bumper, and the frame from the  
outside of the machine. Loosely install a nylock  
flange nut on the bolt.  
B
A
C
E
D
4. Repeat process for the other side of the machine.  
Figure 8. Upright Tube Placement (Left Side Shown)  
A. Upright Tube  
B. 1/2-13 X 3” Bolt  
C. 1/2” SAE Washer  
D. Rear Bumper  
E. Frame of the Machine  
F. 1/2-13 Nylock Flange Nut  
10/2007  
5
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
5. Install the top loop (A, Figure 10) onto the upright  
tubes (B). From the outside, install the 1/2-3” bolt (C)  
through the top loop and upright tube, then through  
the retainer pin assembly (D), as shown in Figure 5E.  
Loosely install the 1/2” side lock nut on the bolts.  
Repeat this process for the other side.  
6. Tighten the hardware installed in steps 3 & 4 for  
securing the roll bar upright tubes to the roll bar  
pocket. Tighten the hardware until there is no  
movement in the upright tubes.  
7. Tighten the 1/2”-3 bolts and hex side lock nuts (C &  
E) securing the top loop (A) to the upright tubes (B).  
Do not over-tighten. The top loop should pivot snugly  
with the retainer pins removed.  
8. Raise the top loop (A) until the rubber stops (F)  
contact the upright tubes.  
9. Push or pull the top of the roll bar forward against the  
rubber stops and install the retainer pins and hair pin  
clips to secure the roll bar in the raised position.  
Figure 9. Roll Bar Orientation  
A
E
A
C
C
D
E
D
E
D
F
B
B
B
Figure 10. Install Top Loop (Right Side Shown)  
A. Top Loop  
B. Upright Tube  
C. 1/2” x 3” Bolt GD.5  
D. Retainer Pin Assembly  
E. 1/2” Side Lock Nut  
F. Rubber Stop  
6
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Check  
Fluid Levels  
A
Check the Engine Oil Level  
1. Use the dipstick (A, Figure 11) to check the engine  
oil level. If necessary add engine oil. Check the  
engine manufacturer’s owner’s manual for the oil  
recommendations.  
Check the Hydraulic Oil Level  
NOTE: Do not open the hydraulic reservoir unless oil is  
being added.  
Figure 11. Pre-start Checks  
A. Crankcase Oil Fill  
1. Before removing the reservoir cap, make sure the  
area around the reservoir cap and fill neck of the  
reservoir is free of dust, dirt, or other debris.  
2. Unscrew the reservoir cap (B, Figure 12).  
3. Look down the filler neck of the hydraulic oil reservoir  
(A) and observe the oil level. When cold, the oil level  
should be approximately 4” (10 cm) below top of the  
filler neck.  
B
A
4. If necessary, add SAE 20W-50 motor oil.  
5. Reinstall the reservoir cap.  
Figure 12. Checking the Hydraulic Oil Level  
A. Hydraulic Oil Reservoir  
B. Reservoir Cap  
Check Tire Pressures  
Tire pressure should be checked periodically, and  
maintained at the levels shown in the chart. Note that  
these pressures may differ slightly from the “Max  
Inflation” stamped on the side-wall of the tires. The  
pressures shown provide proper traction, improve the  
cut quality, and extend the tire life.  
Tire  
Front  
Rear  
Pressure  
25 psi (1,72 bar)  
15 psi (1,03 bar)  
Figure 13. Checking Tire Pressure  
10/2007  
7
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Check the Mower  
Assembly  
Check Torque - Mower Blades  
WARNING  
Mower blades are sharp. For your personal  
safety, do not handle mower blades with bare  
hands. Careless or improper handling of blades  
may result in serious injury. Blade mounting  
bolts must each be installed with a flat washer  
then securely tightened. Torque blade mounting  
Figure 14. Check the Blade Torque  
A. Blade Bolt  
bolts to 70 ft.lbs. (94 N.m.)  
B. Flat Washer  
1. Park the machine on a flat, level surface and engage  
the parking brake.  
2. Lock the deck lift pedal in the 5” (12,7 cm) position.  
3. Check that blades are installed with the tabs pointing  
up toward the deck as shown in Figure 14. Torque  
the bolts to 70 ft.lbs. (94 N.m.).  
8
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Check Deck Rod Timing  
1. Park machine on a flat, level surface. Disengage the  
PTO, stop the engine and engage the parking brake.  
Rear tires must be inflated to 15 psi (1,03 bar); front  
tires to 25 psi (1,72 bar).  
2. To check the lift rod timing, measure and record the  
distance between the lift pivots and the rod pivots.  
Repeat for the other side of the machine. See Figure  
15.  
Figure 15. Check Lift Rod Timing  
3. If the measurements for the rods are equal, no  
further adjustment is required. If the measurements  
are NOT equal (greater than 1/8” (3,17mm)  
difference), adjustment is required, continue with  
Step 5.  
4. Lock the deck lift pedal in the 5” (12,7cm) position.  
Remove the cutting height adjustment pin and lower  
the mower deck.  
5. To ensure that the deck is in the lowest position,  
push the pedal by hand towards the rear of the  
machine and install the height adjustment pin in the  
3” (7.6cm) position to hold in place.  
6. Block up the mower deck until all hanger chains are  
slack. Refer to Figure 16.  
Figure 16. Adjust Lift Rod Timing  
7. See Figure 15. To adjust the lift rod, loosen the jam  
nut on the clevis then remove the 1/2” clevis pin  
fastening the clevis the the lift pivot arm. Turn the  
clevis clockwise to shorten the distance between the  
rod pivots or counterclockwise to lengthen the  
distance between the rod pivots. Reinstall the clevis  
on the lift pivot arm and secure with the 1/2” clevis  
pin previously removed. Tighten the jam nut against  
the clevis.  
8. Remove the blocks from under the mower deck.  
9. Remove the the cutting height adjustment pin from in  
front of the deck lift pedal arm. Lift the mower deck  
and reinstall the adjustment pin in the desired  
mowing height.  
10/2007  
9
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Deck Leveling  
Adjustment  
NOTE: Before adjusting the deck level, the deck lift rod  
timing must be checked and/or adjusted.  
1. Park machine on a flat, level surface. Disengage the  
PTO, stop the engine and engage the parking brake.  
Rear tires must be inflated to 15 psi (1,03 bar); front  
tires to 25 psi (1,72 bar).  
2. Lock the deck lift pedal in the 5” (12,7cm) position.  
Place the deck height adjustment pin in the 4"  
position and lower the deck lift pedal until the arm  
Figure 17. 2 x 4 Locations  
contacts the pin.  
3. Place the 2 x 4 blocks under each corner of the  
mower deck with the 3-1/2” sides being vertical.  
Place a 1/4” (0,64cm) thick spacer on top of the rear  
2 x 4’s. See Figure 17.  
6. Adjust the front eyebolts until the chains are tight and  
the deck is still resting on the 2 x 4’s. Tighten the  
jam nuts. See Figure 18.  
7. Loosen the nuts and allow the rear of the deck to rest  
on the 2 x 4’s and 1/4” spacers. Slide the chains  
down in the slots until the chains are tight and tighten  
the nuts. See Figure 18.  
8. Remove all the 2 x 4’s and spacers from under the  
mower deck.  
9. For your safety, DO NOT handle mower blades  
with bare hands. Position the outside mower blades  
so that they face front-to-back (Figure 19).  
10. Measure from the front tip of the blade from the  
cutting edge to the ground. Measure from the rear  
tip of the blade from the cutting edge to the ground.  
Repeat this process for the other side of the  
machine. The front measurements should be 4” (10,2  
cm), the back measurements should be 4-1/4” (10,8  
cm). If the measurements are greater than 1/8” (3,17  
mm) of what they should be adjust the deck height  
until they are correct.  
Figure 18. Hanger Chain Adjustment  
Figure 19. Checking The Blade Height Measurement  
10  
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
B
C
D
Check Deck Drive Belt  
1. Lower the mower deck to its lowest cutting position.  
2. Remove the mower deck guards.  
3. Make sure the V-side of the belt runs in the pulley  
grooves (Figures 20).  
A
A
WARNING  
D
A
Use extreme caution when rotating the idler arm  
with the breaker bar, due to the increased tension  
in the spring as the idler arm is being rotated.  
Injury may result if the breaker bar is prematurely  
released while the spring is under tension.  
Figure 20. Mower PTO Belt Routing  
A. Spindle Pulley  
B. PTO Drive Belt  
C. Spring-loaded Idler Pulley  
D. Stationary Idler Pulley  
4. If the belt is not properly seated, use a 1/2” breaker  
bar, and place the square end in the square hole  
located in the end of the idler arm (A, Figure 21).  
Carefully rotate the breaker bar counter clockwise,  
which will relieve the tension on the belt exerted from  
the idler arm.  
A
B
5. Re-seat belt and carefully release the tension on the  
breaker bar.  
6. Reinstall the mower deck guards.  
B
Figure 21. Mower PTO Belt  
A. Spring-loaded Idler  
B. Stationary Idler Pulley  
10/2007  
11  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Lubrication  
Lubricate the unit at the locations shown in Figure 22  
through 25 as well as the following lubrication points.  
Grease:  
• front caster wheel axles and yokes  
• deck lift pivot blocks  
• mower deck spindles  
• mower deck idler arm  
Figure 22. Deck Lubrication  
Use grease fittings when present. Disassemble parts to  
apply grease to moving parts when grease fittings are  
not installed.  
Not all greases are compatible. Red Grease (p/n  
5022285) is recommended, automotive-type high-  
temperature, lithium grease may be used when this is  
not available.  
Oil:  
• control handle pivots  
• seat plate pivots  
• deck lift pivots  
Figure 23. Control Handle Pivots & Seat Plate Pivots  
• discharge chute hinge  
Generally, all the moving metal parts should be oiled  
where contact is made with other parts. Keep oil and  
grease off belts and pulleys. Remember to wipe the  
fittings and surfaces clean both before and after  
lubrication.  
Lubricating the Front Casters:  
NOTE: Front casters should be lubricated annually.  
1. Remove the 1/4-28 bolt (A, Figure 25) screwed into  
the front caster and install a 1/4-28 grease fitting.  
2. Grease the front caster.  
3. Remove the 1/4-28 grease fitting and reinstall the  
1/4-28 bolt.  
Figure 24. Deck Lift Linkage Pivots  
4. Repeat the process for the other side of the  
machine.  
A
Figure 25. Front Caster & Wheel  
A. 1/4-28 Bolt  
12  
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
A
Adding Fuel  
To add fuel:  
1. Remove the fuel cap (see A, Figure 26).  
2. Fill the tank to about 1-1/2” (3,81 cm) of the bottom of  
the filler neck. This will allow for fuel expansion.  
NOTE: Do not overfill. Refer to your engine manual for  
specific fuel recommendations.  
3. Install and hand tighten the fuel cap.  
Figure 26. Adding Fuel  
A. Fuel Cap  
Starting The Engine  
1. While sitting in the operator’s seat, engage the  
parking brake and make sure the PTO switch is  
disengaged and the motion control handles are  
locked in the NEUTRAL position.  
2. Set the engine throttle control to FULL throttle  
position. Then fully close the choke by pulling the  
knob OUT fully.  
3. Insert the key into the ignition switch and turn it to  
START.  
4. After the engine starts, gradually open the choke  
(push knob down fully). Reduce to half throttle speed  
and allow to warm up.  
Warm up the engine by running it for at least a minute  
before engaging the PTO switch or driving the rider.  
5. After warming the engine, ALWAYS operate the unit  
at FULL THROTTLE when mowing.  
10/2007  
13  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Perform the  
Safety Checks  
SAFETY INTERLOCK  
SYSTEM  
WARNING  
This unit is equipped with safety interlock switches.  
These safety systems are present for your safety, do  
not attempt to bypass the safety switches, and never  
tamper with the safety devices. Check their operation  
regularly.  
Disengage the PTO, stop the engine, set the parking  
brake, and wait for moving parts to stop before  
leaving operator's position for any reason.  
If the tractor does not pass the test, do not  
operate tractor. Under no circumstance should  
you attempt to defeat the purpose of the safety  
system.  
Operational SAFETY Checks  
Test 1 — Engine should NOT crank if:  
Functional Tests  
1. Check the tractor for loose bolts, screws, nuts, etc.  
• PTO switch is engaged, OR  
• Parking brake is not engaged, OR  
2. Start the engine and check all the controls for proper  
operation: ground speed control levers, parking  
brake, throttle cable, electric PTO clutch, etc.  
• Motion control handles are not in the NEUTRAL  
position.  
Test 2 — Engine SHOULD crank if:  
3. Stop the engine and check for fluid leaks: oil, fuel  
and hydraulic oil.  
• PTO switch is NOT engaged, AND  
• Parking brake is engaged, AND  
4. If any control fails to operate properly during testing  
or seems to be out of adjustment, check and readjust  
it according to the following Adjustments section.  
• Motion control handles are locked in the NEUTRAL  
position.  
Test 3 — Engine should SHUT OFF if:  
• Operator rises off seat with PTO engaged, OR  
• Operator rises off seat with parking brake  
disengaged.  
• Operator moves motion control handles out of their  
neutral positions before disengaging parking brake.  
Test 4 — Blade Brake Check  
Mower blades and the mower drive belt should come to  
a complete stop within seven (7) seconds after the  
electric PTO switch is turned off (or the operator rises  
off seat). If the mower drive belt does not stop within  
seven (7) seconds, see your dealer.  
NOTE: Once the engine has stopped, PTO switch must  
be turned off, parking brake must be engaged, and the  
motion control handles must be locked in the NEUTRAL  
position after the operator returns to the seat in order to  
start the engine.  
WARNING  
If the unit does not pass a safety test, do not  
operate it. See your authorized dealer. Under no  
circumstance should you attempt to defeat the  
purpose of the safety interlock system.  
14  
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Adjustment  
Procedures  
Seat Adjustment  
A
See Figure 27. The seat can be adjusted forward and  
backward. Move the lever forward, position the seat as  
desired, and release the lever to lock the seat into  
position.  
Figure 27. Seat Adjustment  
A. Seat Adjustment Lever  
Seat Adjustment  
(Suspension Seat)  
See Figure 28. In addition to the forward and backward  
seat adjustment, models equipped with a suspension  
seat can be adjusted for lumbar support, suspension and  
back angle.  
B
Forward and Backward Adjustment:  
Move the forward / backward seat adjustment lever (A,  
Figure 28) away from the seat, position the seat as  
desired, and release the lever to lock the seat into  
position.  
A
C
Lumbar Adjustment:  
Turn the lumbar adjustment knob (B) until the desired  
amount of lumbar is achieved.  
D
Back Angle Adjustment:  
Turn the back angle adjustment knob (C) until the  
desired amount of back angle is achieved.  
Figure 28. Suspension Seat Adjustment  
A. Forward / Backward Seat Adjustment Lever  
B. Lumbar Adjustment Knob  
Suspension Adjustment:  
C. Back Angle Adjustment Knob  
D. Suspension Adjustment Knob  
Turn the suspension adjustment knob (D) until the  
display scale has a reading that matches the weight of  
the operator.  
10/2007  
15  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Motion Control Handle  
B
Adjustment  
The control levers can be adjusted in three ways. The  
alignment of the control levers, the placement of the  
levers (how close the ends are to one another) and the  
height of the levers can be adjusted.  
A
TO ADJUST THE HANDLE ALIGNMENT  
Loosen the mount bolts (A, Figure 29) and pivot the  
lever(s) (B) to align with each other.  
TO ADJUST THE HANDLE PLACEMENT  
Loosen the jam nuts and adjust the placement bolt (C) in  
or out to properly adjust the lever end spacing.  
C
TO ADJUST THE HANDLE HEIGHT  
Remove the mounting hardware and reposition the  
handle either up or down from its original position. You  
will need to readjust the handle alignment as described  
above.  
Figure 29. Control Lever Adjustment  
A. Placement Hardware  
B. Ground Speed Control Lever  
C. Alignment Hardware  
16  
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Return-To-Neutral &  
Neutral Adjustment  
To determine if it is necessary to adjust the neutral return,  
perform the following steps.  
3.25”  
(8,23cm)  
D
C
RETURN-TO-NEUTRAL ADJUSTMENT  
E
B
1. Disengage the PTO, engage the parking brake and turn  
off the engine.  
2. Move the ground speed control levers into the  
operating position, pull levers rearward and release.  
F
A
3. Move the ground speed control levers out towards the  
neutral position. If the levers do not align with the  
notches in the neutral lock plate, it is necessary to  
adjust the neutral return rod (B, Figure 30).  
Figure 30. Neutral Return Spring Adjustment  
A. Rear Set Collar  
B. Neutral Return Rod  
C. Neutral Return Spring  
D. Front Set Collar  
E. Neutral Return Bushing  
F. Spring Stop Plate  
ADJUSTMENT  
1. Lock the ground speed control lever in the neutral  
position.  
2. Measure the length of the neutral return spring (C,  
Figure 30) it should be set at 3.25” (8,23cm). If the  
spring does not measure 3.25” (8,23cm) loosen the  
front set collar (D) and the rear set collar (A), then  
move the front set collar forward or back on the neutral  
return rod (B) until the spring length equals 3.25”  
(8,23cm). Retighten the front set collar.  
3. Make sure that the neutral return bushing (E) is seated  
correctly in the spring stop plate (F).  
4. Position the rear set collar so that it sets tightly against  
neutral return bushing and tighten.  
5. Pull the ground speed control lever rearward and  
release to check position again. Adjust as necessary to  
align the ground speed control levers with the notches  
in the neutral lock plate.  
A
It is important to note that after every adjustment of the  
neutral return rod, the lever must be pulled rearward and  
released to properly check the neutral position.  
B
NEUTRAL ADJUSTMENT  
If the tractor “creeps” while the ground speed control levers  
are locked in NEUTRAL, than it may be necessary to  
adjust the linkage rod.  
Figure 31. Neutral Adjustment  
(RH side shown)  
A. Adjustment Linkage Rod  
B. Nuts  
NOTE: Perform this adjustment on a hard, level surface  
such as a concrete floor.  
1. Disengage the PTO, engage the parking brake and turn  
off the engine.  
2. There are three nuts (B, Figure 31) on the linkage rod.  
The first two are to be used together to turn the rod and  
the third (towards the front of the machine) is used to  
lock the rod in place. Loosen the jam nut that locks  
against the ball joint (B) and turn the linkage rod (A) to  
adjust. If the machine creeps forward, turn the rod  
CLOCKWISE (while standing at the rear of the  
machine, facing forward), if the machine creeps  
backward, turn the rod COUNTER-CLOCKWISE.  
3. Lock the jam nut (B) against the ball joint when neutral  
is achieved.  
NOTE: This adjustment should not be performed while the  
machine is running. It may take several attempts to  
achieved neutral, depending upon how much the machine  
creeps.  
17  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Parking Brake  
Adjustment  
1. Disengage the PTO, engage the parking brake, stop  
the engine and remove the ignition key.  
2" - 2-1/8"  
(5,0 - 5,4cm)  
2. Locate the brake spring (A, Figure 32).  
3. With the parking brake engaged, measure the  
compressed spring length. The spring should be  
2” - 2-1/8” (5,0 - 5,4 cm) when compressed.  
4. If the spring is not within this range, release the  
parking brake and turn the adjustment nut (B) to  
B
A
compress or release the spring.  
5. Engage the parking brake and remeasure the spring.  
Figure 32. Parking Brake Adjustment  
A. Brake Spring  
B. Adjustment Nut  
CAUTION  
Do not adjust the spring to be shorter than  
1-15/16” (4,9 cm) when compressed. This may  
damage the brake mechanism.  
18 18  
10/2007  
TP 300-7343-A-M1-SP  
S150X 21HP, 23HP, 25HP & 27HP - 48” & 52” Mower Deck  
Briggs & Stratton Yard Power Products Group  
Copyright © 2007 Briggs & Stratton Corporation  
Milwaukee, WI, USA. All rights reserved.  
The Snapper Pro logo is a trademark of Briggs & Stratton  
Corporation Milwaukee, WI, USA.  
Contact Information:  
Briggs & Stratton Yard Power Products Group  
5375 N. Main St.  
Munnsville, NY 13409-4003  
(800) 933-6175  
10/2007  
19  
TP 300-7343-A-M1-SP  

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