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WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
Model MS
PTO Drive Belt Removal
for Cleaning GHS Blower - Model MS
3. Reinstall the PTO drive belt by reversing the re-
moval procedure.
GHS Exhaust Screen - Model MS, MC, MD, MT
Refer to Cleaning the GHS Exhaust Screen in this
section.
Hydrostatic Transmission Cooling Fins - Model
MS, MC, MD, MT
Keeping the cooling fins on the hydrostatic transmis-
sions clean and free of obstruction is essential to
avoid overheating the transmission fluid and shorten-
ing transmission life. The cooling fins should be
checked every 100 hours; and cleaned if necessary.
To clean the fins, use compressed air and/or a pressure
washer. The cooling fins extend all the way around the
housing -- the fins underneath need to be clean as well
as the more visible fins above. Also, pay close attention
to the area under the drive pulley.
IMPORTANT: In case an oil leak develops on the input
shaft, the cooling fan blowing dusty air and oil on the
transmission will quickly pack the cooling fins with oily
dirt. If this condition occurs, replace the seal immedi-
ately to avoid overheating and damaging the transmis-
sion. The input shaft assembly and seal are easily
replaced without removing the transmission from the
machine.
An additional procedure in maintaining transmission
cooling is to inspect the cooling fans. Replace the
fan(s) if blades are missing or damaged.
Hydrostatic Transmission Cooling Fins
Compound
Pulley
Blade Clutch
Lever
Belt Tightener
Idler Pulley
GHS
Blower
Pulley
Belt Scrubber Brake
(Relax to Remove PTO Drive Belt)
PTO Drive Pulley
PTO
Drive Belt
Cooling Fins
Cooling Fan
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