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. 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.
4.1ENGINE 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.
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
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.
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. Check this by disengaging the Blade Lever as shown in Figure 4.2. Perform the following measurement and adjustment.
1.With the blade engagement lever disengaged, measure the distance between the front of the blade lever and the edge of the latch plate. The dimension should be 3” to
3” to
CLEARANCE
BLADE
LEVER
DISENGAGED
LEFT
SPINDLE
PULLEY
IDLER
PULLEY
ENGINE DRIVE
PULLEY
ASSEMBLY
RIGHT SPINDLE PULLEY
FIXED
PULLEY
MEASURE FROM
THIS EDGE
FIGURE 4.2
(Continued on Next Page)
IMPORTANT: On 42” deck models do not require belt
FIGURE 4.1
tension adjustment. But, if front frame assembly clamp is loosened for any reason, recheck belt spacing between idler pulley and fixed pulley. Place deck height lever in the 3rd position. With blade lever in the “ON” position, the distance between the idler pulley and the fixed pulley should be 2- 1/8”. See Figure 4.1.
20
