Snapper E331523KVE Manuale Utente

Pagina di 36
 
21 
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 
complete stop in 3 seconds or less.  If the blade 
continues to rotate after 3 seconds, the blade brake 
must be adjusted. Refer to Section “BLADE BRAKE 
ADJUSTMENT” for adjustment procedures or return 
machine to an authorized SNAPPER dealer for 
adjustment. DO NOT CONTINUE to operate machine 
until blade brake is adjusted and functioning 
properly. 
 
4.1  ENGINE ADJUSTMENTS & REPAIR 
Refer to the engine owner’s manual for those 
adjustments and/or repairs that can be made by the 
owner. 
 
4.2  MOWER 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.  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 3” to 3-1/4" clearance between the Blade 
Engagement Lever and the edge of the Latch 
Plate. Check this by disengaging the Blade Lever 
as shown in Figure 4.1. 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 3-1/4" clearance 
between lever and edge of plate. See Figure 4.1.  
If the dimension is incorrect go to step 2. 
2.  Remove Belt Cover. Refer to Section “BLADE 
BELT COVER REMOVAL”. 
3.
 If dimension is greater than 3-1/4”, rotate nut 
clockwise to increase brake tension. If dimension 
is less than 3”, rotate nut counter-clockwise to 
decrease brake tension.  See Figure 4.2. 
4.  Reinstall belt cover and tighten bolts securely. 
 
 
WARNING 
DO NOT operate machine until blade brake is 
adjusted and functioning properly. If blade stop time 
can not be achieved with the adjustment procedure 
described above, take machine immediately to an 
authorized Snapper dealer. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FIGURE 4.1 
 
 
 
FIGURE 4.2 
 
 
ROTATE NUT CLOCKWISE TO 
INCREASE BRAKE TENSION. 
 
ROTATE NUT COUNTER-
CLOCKWISE TO DECREASE 
BRAKE TENSION. 
 
3” to 3-1/4” 
CLEARANCE 
MEASURE FROM 
THIS EDGE 
BLADE 
LEVER 
DISENGAGED