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Section 3 - MAINTENANCE
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.
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 drive belt cover.
3. Slide cover back and rotate out on left side of
mower deck. See Figure 3.3.
FIGURE 3.3
4. On 42” models, check belt for excessive wear or
damage; there are no adjustments to tighten belt on
these models. See Figure 3.4. If belt is too loose to
operate mower satisfactorily then a new belt will have
to be installed. Refer to Section “MOWER DRIVE
BELT REPLACEMENT”.
WARNING
The following procedure requires the engine and
blades to be operated. Exercise extreme caution.
Clear area of loose parts & tools first. Only operate
blades when seated in the operator’s seat.
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.
WARNING
Blades must stop rotating in 3 seconds or less after
the blade has been turned off. DO NOT operate
machine until blade brake has been adjusted and
functioning properly.
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
DO NOT operate machine if interlock system is not
functioning properly. Contact your SNAPPER dealer
immediately for assistance.
REMOVE DRIVE
BELT COVER
TOP VIEW OF BELT ROUTING
LEFT
SPINDLE
PULLEY
RIGHT
SPINDLE
PULLEY
ENGINE DRIVE
PULLEY ASSEMBLY