1998 S/N 21329 - Walker Mowers
1998 S/N 21329 - Walker Mowers
1998 S/N 21329 - Walker Mowers
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Maintenance Instructions<br />
CLEANING/<br />
CHECKING/SERVICING<br />
Hydrostatic Transmission Cooling Fins<br />
Keeping the cooling fins on the hydrostatic transmissions<br />
clean and free of obstruction is essential to<br />
avoid overheating the transmission fluid and shortening<br />
transmission life. The cooling fins should be<br />
checked every 100 hours; and cleaned if necessary.<br />
To clean the fins, use compressed air and/or a pressure<br />
washer. The cooling fins extend all the way<br />
around the housing -- the fins underneath need to be<br />
clean as well as the more visible fins above. Also,<br />
pay close attention to the area under the drive pulley.<br />
IMPORTANT: In case an oil leak develops on the<br />
input shaft, the cooling fan blowing dusty air and oil<br />
on the transmission will quickly pack the cooling<br />
fins with oily dirt. If this condition occurs, replace<br />
the seal immediately to avoid overheating and damaging<br />
the transmission. The input shaft assembly<br />
and seal are easily replaced without removing the<br />
transmission from the machine.<br />
An additional procedure in maintaining transmission<br />
cooling is to inspect the cooling fans. Replace the<br />
fan(s) if blades are missing or damaged.<br />
CHECKING/SERVICING<br />
DANGER<br />
To prevent accidental starting of the engine<br />
when servicing or adjusting the machine,<br />
remove the key from the ignition<br />
switch and disconnect the spark plug<br />
wires.<br />
Security of Air Filtration Components<br />
NOTE: The following inspection is only an external<br />
inspection and should be done without “disturbing”<br />
the filtration components.<br />
On a daily basis, visually inspect the external condition<br />
of the complete air cleaner system. The following<br />
items should be inspected:<br />
1. Check the security of the engine air cleaner<br />
cover and inspect it for damage and make sure<br />
it seals properly with the engine baseplate. Improper<br />
sealing may be caused by a bent baseplate.<br />
2. Check the Donaldson Radialseal air cleaner<br />
canister for damage. Make sure the cover is in<br />
place and the cover latches are secure - do not<br />
run the engine without the air cleaner cover in<br />
place and secure.<br />
3. Inspect both air intake hoses for cracks, nicks,<br />
cuts, etc., and check the hose clamps for tightness.<br />
Cooling Fan<br />
Battery<br />
NOTE: For initial battery service during setup, refer<br />
to Battery Service in Assembly Instructions.<br />
Electrolyte Level<br />
Cooling Fins<br />
Hydrostatic Transmission Cooling Fins<br />
The battery electrolyte level should be checked after<br />
every 25 hours of operation. To check electrolyte<br />
level:<br />
1. Remove battery cell filler caps.<br />
2. Check the electrolyte level. If the level is below<br />
the bottom of the vent well, fill with drinking water<br />
to the bottom of the vent wells [1/4 to 1/2 in.<br />
(6 to 13 mm) above the plates].<br />
60
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