Walker H24d Operator's Manual page 63

Maintenance Instructions
CLEANING
Cooling
Fins
Transaxle Housing and Cooling Fins
IMPORTANT: In case an oil leak develops on the
input shaft, the cooling fan blowing dusty air and oil
on the transaxle will quickly cover the housing and
pack the cooling fins with oily dirt. If this condition
occurs, contact your dealer immediately to avoid
overheating and dam aging the transaxle.
An additional procedure in maintaining transaxle
cooling is to inspect the cooling fans. Replace the
fan(s) if blades are missing or damaged.
Cooling
Fans
Transaxle Cooling Fans
59