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Section 3 - MAINTENANCE
WARNING
DO NOT attempt any adjust_nents,maintenance, service or
repairswith 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 bums, allow all
partsto coolbeforeworking on machine. FuelFillerCap and
vent mustbe closedsecurelyto preventfuel spillage.
3.2 SERVICE - AFTER FIRST 5 HOURS
3.2.4. CHECK BLADE DRIVE BELT
The blade drive consists of a single belt from the
engine to the deck. Inspect for signs of deterioration
and proper tension.
1. Lower deck to lowest setting.
2. Remove four self-tapping screws, two on each
side of mower drive belt cover. See Figure 3.3.
3. Slide cover back and rotate out.
REMOVE FOUR (4)
SELF-TAPPING ......
REMOVE
FIGURE 3.3
4. With engine "OFF" and deck in 3rd height of cut
position, move blade lever back to the "ON" position
and depress blade pedals.
5. Measure the belt spacing at idler pulley. See
Figure 3.4. The belt spacing should be 1 1/4" but
no less 1". Ifthe measurement is less than 1", the belt
tension should be adjusted. Refer to Section "MOWER
DRIVE BELT ADJUSTMENT".
BELT SPACING -_
SHOULD BE
1-1/4"
ENGINE
._t PULLEY
IDLER
PULLEY
MOWER
DECK
PULLEY
FIGURE 3.4
3.2.5. BLADE BRAKE
1. Check blade brake for proper function. Blade should
stop rotating in 3 seconds or less after moving the blade
control lever to the "OFF" position or after releasing the
blade pedals.
I Blades must stop rotating in 3 seconds or less after I
the blade has been turned off. DO NOT operate l
machine until blade brake has been adjusted and l
functioning properly. I
2. If the blade continues to rotate longer than 3
seconds do not operate machine. Refer to Section
"BLADE BRAKE ADJUSTMENT" or contact your
SNAPPER dealer for assistance.
3.2.6. SERVICE BRAKE / PARK BRAKE
1. Check machine brake for proper function. Engage
park brake. Push machine. Rear tires should skid. Drive
machine forward and apply brake. Machine should come
to a complete stop in less than 5 ft.
2. If brakes are not functioning properly brake
adjustment must be completed before operating
machine. Refer to Section "SERVICE BRAKE - PARK
BRAKE ADJUSTMENT".
3.2.7. INTERLOCK SYSTEM
Check interlock controls for proper function:
The engine MUST NOT start if:
1. Blade Control is "ON" and/or clutch/brake pedal is
released.
The engine and blades MUST STOP if:
2. The operator leaves the operator position with Blade
Control "ON" and/or clutch/brake pedal is released.
WARNING I
DO NOT operate machine if interlock system t
functioning properly. Contact your SNAPPER r
immediately for assistance,
3.2.8. REVERSE LOCKOUT MECHANISM
Check function of Reverse Lockout Mechanism with
engine off.
1. Depress and hold blade pedals.
2. Depress and hold clutch/brake pedal.
3. Shift lever must not go into reverse.
WARNING
DO NOT operate machine if Reverse LockoutI
Mechanism is not functioning properly. Contact your l
SNAPPER dealer immediately for assistance. I
14
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