Mower Deck Spindle Lubrication; Tractor Pto Gearbox Lubrication; Checking Gearbox Oil Level; Changing Gearbox Oil - Walker D21d Operator's Manual

D21d
Dolly Wheel
Pivot
U-Joints
Gearbox, Dolly Wheel, and U-Joint Lubrication

Mower Deck Spindle Lubrication

For mower decks with belt-driven blades, lubricate
each deck spindle grease fitting every 25 hours.
Use SAE general purpose lithium or molybdenum
base grease for grease fittings.

Tractor PTO Gearbox Lubrication

Checking Gearbox Oil Level

Check the gearbox oil level every 25 hours, and if
necessary, add oil [SAE E.P. (Extreme Pressure)
80W-90 (API GL-5) gear lube] to maintain oil level
to the FULL mark on the dipstick.
IMPORTANT: DO NOT overfill the PTO gearbox to
avoid oil leakage out of the dipstick standpipe.
If the oil level is low, check the gearbox for any
indi cation of an oil leak. If an oil leak is noted, the
gear box will need to be removed and rebuilt.
Jackshaft
PTO
Gearbox
Vent Plug
Dipstick Location, Tractor PTO Gearbox
Belt Drive
Gearbox
Dipstick
Maintenance Instructions

Changing Gearbox Oil

The tractor PTO gearbox is oil filled. No scheduled
oil change is required. However, changing the oil
af ter the first 100 hour break-in period will
extend gearbox life and is recommended.
1. Remove the drain plug in the bottom of the
gearcase, drain the oil, and reinstall the plug.
2. Refill the gearbox through the dipstick stand-
pipe using 7 to 8 fl. oz. (21 to 24 cl) of SAE
E.P. (Extreme Pressure) 80W-90 (API GL-5)
gear lube. Re move plug in top of gearcase to
vent air when refilling.
Check that the oil level is at the FULL mark on
3.
the dipstick. DO NOT overfill.

Gear Axle Lubrication

● The gear axle oil lubrication is SAE E.P.
80W-90 (API GL-5) gear lube.
● Check the axle oil level after every 100 hours
of operation by removing the oil level plug. If
additional oil is needed, remove the breather
vent on top of ax le and fill until oil is at the level
plug.
● Change axle oil every 1000 hours or two (2)
years.
Lubrication
63