Ghs Exhaust Screen; Hydrostatic Transmission Cooling Fins - Walker T27i Operator's Manual

Maintenance Instructions
Blower
Drive Pulley
Depress Idler Pulley
Down to Relax Belt
Collapse Blower Belt Tightener
to Remove GHS Blower Drive Belt

GHS Exhaust Screen

Refer to Cleaning the GHS Exhaust Screen in Op­
erating Instructions.
GHS Blower
Blower
Drive Belt
Pulley
Belt Tightener
Idler Pulley

Hydrostatic Transmission Cooling Fins

Keeping the cooling fins on the hydrostatic transmis-
sions clean and free of obstruction is essential to
avoid overheating the transmission fluid and short-
ening transmission life. The cooling fins should be
checked every 100 hours; and cleaned if neces-
sary.
To clean the fins, use compressed air and/or a pres-
sure 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 pul-
ley.
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 immediately to avoid overheating and dam-
aging the transmission. 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.
Cooling Fan
Cooling Fins
Hydrostatic Transmission Cooling Fins
CLEANING
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