Not for
Reproduction
Jam Nut
A
Spring Anchor Eyebolt
B
Adjustment Nut
C
Spring
D
Transmission Drive Belt
E
Transmission Pulleys
F
Front Stationary Pulley
G
Crankshaft Pulley
H
Adjustable Idler Pulley
I
Coil-to-coil Spring Measurement: 3-1/4" (8.3 cm)
J
8.
Loosen the adjustment nut (C) to release the majority of
the tension exerted on the belt by the spring (D).
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.
9.
Using a 1/2" breaker bar, place the square end in the square
hole located in the end of the idler arm (A, Figure 43),
carefully rotate the breaker bar counter-clockwise, which
will relieve the tension on the belt exerted from the idler
arm.
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10. Slide the drive belt over the edge of the front stationary
pulley (B). Carefully release the tension on the breaker bar.
11. Disconnect the spring (D, Figure 42) from the spring anchor
eyebolt (B).
12. Remove the old belt (E) and replace with a new one. Make
sure that the V-side of the belt runs in the grooves of the
transmission pulleys (F), the front stationary pulley (G), and
the crankshaft pulley (H). The back side of the belt should
contact the face of the flat side adjustable idler pulley (I).
13. Reconnect the spring to the spring anchor eyebolt. Turn
the adjustment nut until a coil-to-coil measurement (J) of
3-1/4" (8.3 cm) is achieved. Tighten the jam nut.
14. Align the PTO clutch mounting tab with the slot in the PTO
clutch and then reinstall the PTO clutch mounting tab to the
engine deck and secure using hardware previously
removed.
15. Reconnect the PTO clutch wire harness to the PTO clutch.
16. Using a new wire tie, secure the PTO clutch wire harness
in the same manner as it was previously installed, ensuring
that it cannot contact the moving components.
17. Reinstall the mower deck drive belt. See
Mower Deck Drive
Belt Replacement.
Parking Brake Adjustment
The parking brake mechanism consists of a single parking brake
cable that connects the parking brake handle to the lower
parking brake shaft, an upper parking brake spring, and two
lower parking brake springs. The position of the cable and the
compressed spring length of the upper parking brake spring are
factory preset and should not be changed for the purpose of
adjusting the parking brake. The parking brake is adjusted by
changing the compressed spring length of the lower parking
brake spring.
1.
Park the unit on a flat, level surface such as a concrete
floor. Disengage the PTO, engage the parking brake, turn
ignition switch to OFF, and remove the key.
2.
Locate the two (2) parking brake springs (A, Figure 44)
underneath the engine deck at the rear of the machine.
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