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.
4.1ENGINE ADJUSTMENTS & REPAIR
Refer to the engine owner’s manual for those adjustments and/or repairs that can be made by the owner.
4.2MOWER DECK & COMPONENT ADJUSTMENTS The following mower deck and component adjustments and repairs can be made by the owner. However, if there is difficulty in achieving these adjustments and repairs, it is recommended that these repairs be made by an authorized SNAPPER dealer.
WARNING
Once blade is disengaged it should come to a stop in 3 seconds or less. If the blade continues to rotate after 3 seconds the blade brake must be adjusted. DO NOT continue to operate the machine if the blade brake is not operating properly.
4.2.1. MOWER DRIVE BELT ADJUSTMENT
On 42” models, the mower drive belt DOES NOT require adjustment. If the belt does not drive blade properly, replace belt. See Figure 4.1 for belt routing.
TOP VIEW OF BELT ROUTING
LEFT | RIGHT | |
SPINDLE | ||
SPINDLE | ||
PULLEY | ||
PULLEY | ||
|
4.2.2. BLADE BRAKE ADJUSTMENT
The automatic Blade Brake should stop the blades within 3 seconds anytime the blades are disengaged by moving blade lever to the "OFF" position or by releasing the Blade Pedals. When the Blade Brake is properly adjusted there should be 1/16" to 1/8" clearance between the Blade Engagement Lever and the back of the Latch Plate. Check this by disengaging the Blade Lever and depressing the Blade Pedals as shown in Figure
4.2.If clearance is greater than 1/4" perform the following adjustment.
1. Remove mower drive belt cover.
2. Remove retaining pin from eye bolt swivel. Lift swivel out of deck rail. See Figure 4.2.
3. Turn eye bolt swivel CLOCKWISE to increase brake tension and reduce clearance between Blade Lever and Latch Plate.
4. Check clearance. Depress Blade Pedals, with Blade Lever disengaged. If clearance is greater than 1/8", rotate eye bolt swivel CLOCKWISE an additional turn and
5. Once the 1/16" to 1/8" clearance has been attained, reinstall swivel onto deck rail. Insert retaining pin into eye bolt swivel.
6. Reinstall mower drive belt cover.
7. Verify that proper Blade Brake action has been restored. If not, contact your SNAPPER Dealer for inspection and repair.
ROTATE SWIVEL ON
EYE BOLT TO
ACHIEVE CORRECT
CLEARANCE
EYEBOLT
RETAINING PIN
EYE BOLT
SWIVEL
FIGURE 4.2
ENGINE DRIVE PULLEY ASSEMBLY
WARNING
DO NOT operate machine until blade brake is adjusted and functioning properly. If blade stop time cannot be achieved with the adjustment procedure described above, take the machine immediately to an authorized SNAPPER dealer.
FIGURE 4.1
17