Walker MDD (20.9 HP) - Manual (Page 74)

Maintenance Instructions
REPLACING/REPAIRING
70
Hydrostatic Ground Drive Belt
1. To remove the hydrostatic ground drive belt:
a. Raise the spring-loaded belt tightener arm
and idler pulley to relax belt.
b. Slide belt off pulleys, then release the
idler.
Transmission
Drive Pulley
Spring
Idler Pulley
Jackshaft
Belt Tightener Arm
Hydrostatic
Ground Drive Belt
Hydrostatic Ground Drive Belt Assembly (Disengaged)
2. Reverse the procedure to install the hydrostatic
ground drive belt.
Hydrostatic
Ground Drive Belt
Spring
Idler Pulley
Belt Tightener Arm
Hydrostatic Ground Drive Belt Assembly (Engaged)