Walker H37i - Check Transaxle Fluid Level; Transaxle Oil and Filter Change

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Maintenance Instructions LUBRICATION
Check Transaxle Fluid Level
● The transaxle oil lubrication is SAE 20W50 (API
Service Class SL or higher) engine oil.
● Inspect both transaxle cases and hoses after
every 25 hours of operation for visible leaks.
● The uid level of the transaxles can be checked
visually by looking at the uid level in the expan
sion reservoir. When the transaxles are cold, the
uid level in the expansion reservoir should be
between 1/4 and 1/2 in. (0.64 cm and 1.27 cm).
Hot
Level
Cold
Level
Hose to
Transaxles
Reservoir Cap
Expansion Reservoir Location
Transaxle Oil and Filter Change
Change the transaxle oil after the initial break-in
period of 75-100 hours. Thereafter, change oil ev-
ery 400 hours of operation as follows:
1. Thoroughly clean the exterior of the transaxle
housing before servicing. Remove expansion
reservoir cap to allow venting. Using a 1/4 in.
hex wrench, remove the plug on the lower in
side of each transaxle allowing the oil to drain.
2. Remove the oil lter guard, remove and replace
the oil lter using an oil lter wrench. Tighten
lter by turning lter 3/4 to 1 turn after gasket
contacts the lter base surface. Reinstall the oil
lter guard. (Refer to Transaxle Oil Drain
Plug, Filter, and Guard Location illustration.)
Oil Filter
Oil Filter
Guard
Oil Drain
Plug
Transaxle Oil Drain Plug, Filter, and
Guard Location
(Shown with Deck Support Arms
Removed for Clarity)
3. Reinstall drain plugs.
4. Remove the oil reservoir hose attached to the
elbow on top of the transaxles. Remove the
elbows to access the oil ll opening.
5. Fill the transaxles with 20W50 (API Service
Class SL or higher) oil through the opening
(where the elbows were). Fill up to the opening.
6. Before reinstalling the elbows, screw the lock
ing nut on the elbows down until they are snug
(the oring on the elbow will be to the bottom of
the oring groove).
Elbow
Screw Locking
Nut Down
Reinstall Transaxle Elbows