Mower Belt Replacement - Snapper 5900700 Operator's Manual

Regular Maintenance

Mower Belt Replacement

NOTICE
To avoid damaging belts, DO NOT PRY BELTS OVER
PULLEYS.
1. Park the unit 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. Lower the mower deck to its lowest cutting position and
remove the mower deck guard.
3. Using a 1/2" breaker bar (A, Figure 34), place the square
end in the square hole located on the end of the idler
arm (B). Carefully rotate the breaker bar CLOCKWISE,
which will relieve the tension on the belt exerted from
the idler arm.
WARNING
Use extreme caution when rotating the idler arm with
the breaker bar, due to the increased tension in the
spring as the idler arm is being rotated. Injury may
result if the breaker bar is prematurely released while
the spring is under tension.
4. Slide the mower drive belt over the edge of the
stationary idler pulley (C). Carefully release the tension
on the breaker bar.
5. Remove the old belt and replace with a new one. Make
sure the V-side of the belt runs in the pulley grooves
(Figure 35).
6. Install the mower drive belt on the PTO pulley, the
spindle pulleys and all idler pulleys except the stationary
pulley (C, Figure 34). Carefully rotate the breaker bar
counter-clockwise and install the belt on the stationary
idler pulley. Carefully release the tension on the breaker
bar.
7. 36" Models: Using the cutting height adjustment
handles, adjust the cutting height of the mower deck to
1-1/2" (3,8 cm).
NOTE: Make sure that both sides of the deck are adjusted to
the same cutting height.
Measure the mower belt tensioner spring (C, Figure
36). The measurement should equal 12-1/4" (31,1 cm).
If the measurement does not equal 12-1/4" (31,1 cm),
adjust the anchor eyebolt (A) by turning the adjustment
nut (B) until a measurement of 12-1/4" (31,1 cm) is
achieved.
8. Reinstall the mower deck guards.
9. Run the mower under no-load condition for about 5
minutes to break-in the new belt.
32
D
C
A
E
Figure 34. Remove the Mower Belt
A. Breaker Bar
B. Idler Arm
C. Stationary Idler Pulley
D. 36" Mower Deck
E. 48" Mower Deck
B
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