briggs--stratton 5900681 ユーザーズマニュアル

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39
Roller Bar Leveling 
(Select Models)
The rollers on this Zero Turn unit are not intended to 
ride on the ground.  DO NOT adjust rollers to ride on 
the ground. Rollers riding on the ground will damage 
turf and/or unit.
 1.  First level the mower deck using the procedure 
found in MOWER DECK LEVELING.
 2.  With the mower installed, place the rider on a 
smooth, level surface such as a concrete floor. 
Turn the front wheels so they are straight.
 3.  Place the mower cutting height pin in the 4th hole 
from the bottom (C, Figure 40).
 4.  Measure the distance between the outside ends of 
the roller bar and the ground. If there is more than 
1/8” (3mm) difference between the measurements 
on each side, proceed to step 5.
 5.  Locate the roller bar leveling eccentric and 
locknuts (A, Figure 42).  Loosen the locknut and 
turn the eccentric to raise or lower a side.  When 
the correct level is achieved, hold the eccentric 
with a wrench and tighten the locknut.  Repeat 
step 4 if necessary.
Figure 42.  Roller Bar Leveling
A.  Eccentric and Locknut
A
Figure 43.  Release Belt Tension
A.  Belt Tension Release  Lever
B.  Guard Notch (44” & 50” Mowers Only)
A
B
Troubleshooting, Adjustments, & Service
Figure 44.  Mower Belt Routing
A. Arbor Pulleys
B.  Back-Side Idler Pulleys
C. PTO Pulley
D.  Belt Tension Release Lever
A
A
A
C
D
B
Mower Belt Replacement
 1.  Park the rider on a smooth, level surface such as 
a concrete floor.  Disengage the PTO, engage the 
parking brake, turn off the engine, and remove the 
ignition key.
 2.  Raise the mower deck to transport position.  
44” & 50” Mower Decks
 1.  Pull the lever (A, Figure 43) towards the rear of 
the machine to release tension on the mower belt.  
Secure the lever in the guard notch (B).
 2.  Remove the old drive belt and install the new 
one as shown in Figure 44.  Note that the back 
of the drive belt must ride against the back-side 
idler pulleys (B).  Use the belt tension lever (A, 
Figure 44) to release tension on the idler pulley for 
installation.
To avoid damaging belts, DO NOT 
PRY BELTS OVER PULLEYS.
Not 
for  
Reproduction