Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and vent
must be closed securely to prevent fuel spillage.
4.2.4. MOWER DRIVE BELT ADJUSTMENT
(FOR 28" & 30" DECKS ONLY)
1. Remove mower drive belt cover. Refer to
Section "CHECK MOWER DRIVE BELT".
2. Move blade lever up and over to the "ON" position.
3. Place deck cutting height in the 3rd position.
Measure the belt spacing between idler pulley and
belt. The distance should measure 1-1/4" but no
less than 1". See Figure 4.5.
F 1-I/4"
y_-=
l ENGINE DRIVE
SPINDLE IDLER PULLEY
PULLEY PULLEY ASSEMBLY
FIGURE 4.5
SLIDE FRONT
END ASSMBLY
LOOSEN
HARDWARE
LOOSEN HARDWARE AND SLIDE FRONT
FRAME ASSEMBLY FORWARD TO OBTAIN THE
DESIRED BELT TENSION MEASUREMENT
FIGURE 4.6
12. Peel back the rubber clutch/brake pedal pad and
push one ferrule through hole in pedal to attain slack
in cable. See Figure 4.7. Recheck cable for the
approximate 3/16" of slack. Replace pedal pad when
adjustment is complete.
IMPORTANT: Too much slack may cause improper
clutching and braking could be affected. Too little slack
may cause improper clutch function. Recheck service
brake/park brake and readjust if necessary. Refer to
Section "SERVICE BRAKE/PARK BRAKE ADJUSTMENT".
PEEL BACK PEDAL PAD. PUSH
ONEFERRULETHROUGH PEDAL.
RECHECK CABLE SLACK
4. If the distance is less than 1", adjust belt tension.
5. Move blade lever to the "OFF" position.
6. Loosen hardware that secures the clamp that
anchors the front frame assembly to the rear main
case. See Figure 4.6.
7. Pull front frame forward until belt spacing, with
blade lever "ON", measures 1-1/4".
8. Retighten hardware that secures clamp. Make sure
hardware is tightened securely.
IMPORTANT: The SNAPPER Rear Engine Rider Models
with 33" decks do not require belt tension adjustment. But, if
front frame assembly clamp is loosened for any reason,
recheck belt spacing between idler pulley and belt. With
blade lever in the "ON" position, the distance should
measure 1-3/4".
9. When belt adjustment is complete it will be
necessary to check Clutch/Brake Cable slack.
10. Disengage parking brake and allow pedal to remain
in the engaged wheel drive (Up) position. See Figure
4.7.
11. Clutch/Brake Cable should have approximately
3/16" of slack. If the cable does not have slack
adjustment of cable must be performed.
21
FERRULE_
FERRULE
js y
\
PEDAL IS SHOWN IN
THE ENGAGED OR UP
POSITION
FIGURE 4.7
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and vent
must be closed securely to prevent fuel spillage.
4.3 REAR ENGINE RIDER DRIVE COMPONENTS
Your Snapper rider is equipped with a patented
smooth start clutch. The clutch should operate
smoothly and provide ample traction. If problems are
experienced, contact your Snapper dealer for repair.
4.3.1 SERVICE BRAKE/PARK BRAKE
ADJUSTMENT
Test the wheel brake on a dry concrete surface.
When properly adjusted, the Rear Engine Rider will
stop within 5 feet from fastest speed. If stopping
distance is more than 5 feet, the wheel brake
should be adjusted as follows:
1. Follow WARNING statement found on this page.
Check fuel level in tank. Refer to Section
"REMOVING FUEL TANK". If over 3/4 full, remove
tank.
2. If 3/4 or less, proceed to next step.
3. Carefully stand Rear Engine Rider on rear
bumper.
4. Depress clutch/brake pedal all the way down.
Move and hold the park brake lever in the "ON"
position and release the clutch/brake pedal to lock
the park brake. See Figure 4.8.
6. If measurement is not 3/4", loosen the two jam-
nuts. See Figure 4.10. Hold the clutch/brake cable to
the chain case bracket.
7. Adjust cable up or down using the jam-nuts to
obtain a distance of 314"between end of clutch/brake
cable (adjustment shown in inset of Figure 4.9) and
bottom of housing. See Figure 4.9.
8. After adjustment iscomplete, securely tighten cable
jam-nuts.
9. Retest wheel brake.
CHAIN
CABLE
HOUSING
CABLE
EYE
COTTER
PIN
BRAKE CABLE
COTTER PIN
FIGURE 4.9
HOUSING
CHAIN
CLUTCH/BRAKE
DEPRESS
OVE
BRAKE LATCH OVER
TO LOCK
FIGURE 4.8
5. Measure the distance between end of
clutch/brake cable and bottom of housing.
Measurement should be 314". See inset of Figure
4.9.
\
LOOSEN
JAM NUTS
/
FIGURE 4.10
22
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. Stop
engine. Stop blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and Vent
must be closed securely to prevent fuel spillage. DO
NOT use a cutting blade that shows signs of
excessive wear or damage. On Rear Engine Riders
equipped with a grass catcher attachment, the air
lifts should be replaced when the blade is replaced.
4.4
4.4.1. BLADE WEAR LIMITS
MOWER BLADE REPLACEMENT
1. Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.11.
NEW BLADE
5. Inspect condition of blade. See Figure 4.11.
6. If blade is in good condition, sharpen at 22 to 28
degrees. DO NOT sharpen beyond existing cutting
edge. See Figure 4.13.
7. Check blade balance after sharpening. If
necessary, correct blade balance by grinding the
heavy end of blade.
8. Reinstall blade. See Figure 4.12. Torque blade
mounting bolts to recommended range of 30 to 40
ft. Ibs.
LOCKWASHER
"°'d%/, / b
"_.= _ DANGEROUS CONDITION!
REPLACE WITH NEW
BLADE.
FIGURE 4.11
WARNING
Wear heavy leather gloves when handling or working
around cutting blades. Blades are extremely sharp
and can cause severe injury. DO NOT use a cutting
blade that shows signs of excessive wear or
damage.
4.4.2. BLADE SHARPENING
1. FollowWARNING statement found on this page.
2. Check fuel level in tank. If over 3/4 full, remove
tank. Refer to Section "REMOVING FUEL TANK". If
3/4 or less, proceed to next step.
3. Carefully stand Rear Engine Rider on rear bumper.
4. Remove blade. See Figure 4.12.
@
HARPEN
CUTTING EDGE O/28o /_,,,_ -'-"
• .................................. ; 22 ° T X
BLADE BOLTS
FIGURE 4.12
BLADE TiP /
/
qAL CUTTING EDGE
FIGURE 4.13
23