Jackshaft drive belt, Jackshaft drive belt (disengaged), Jackshaft drive belt (engaged) – Walker MC (20 HP) User Manual
Page 68: Maintenance instructions

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Maintenance Instructions
REPLACING/REPAIRING
Jackshaft Drive Belt
1. To remove the jackshaft drive belt:
a. Remove the engine PTO drive belt, as
described in previous section.
b. Relax the belt by depressing the spring-
loaded idler arm.
c. Roll the belt off the jackshaft pulley and
remove.
Jackshaft
Drive Belt
Push Idler Pulley Down to Relax Belt
Engine
Pulley
Idler Pulley
Jackshaft
Tension Spring
Jackshaft Drive Belt (Disengaged)
2. Reverse the removal procedure to replace the
jackshaft drive belt.
Jackshaft
Drive Belt
Tension Spring
Engine
Pulley
Idler Arm
Jackshaft
Jackshaft Drive Belt (Engaged)