Walker MT, MTL, MTEFI, MTLEFI, Detailed Instructions, Page: 65 / 256

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WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
Tractor PTO Gearbox Lubrication - Model MS
The tractor PTO gearbox is permanently lubricated (oil
filled) and sealed requiring no scheduled lubrication.
However, the gearbox oil seals should be checked
ev-
ery 25 hours for indication of oil leaks. If evidence of
an oil leak is noted, replace the oil seal and relubricate
the gearbox. The gearbox will need to be removed from
the tractor to be serviced. Refill with SAE E.P. (extreme
pressure) 80W-90 gear lube until level is up to (sub-
merges) horizontal shaft of gearbox (shaft parallel to
cover).
DO NOT overfill.
NOTE: In case the gearboxes are completely drained
of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is
required to refill the gear drive assembly.
Tractor PTO Gearbox
Tractor PTO Gearbox Lubrication - Model MW
Checking Gearbox Oil Level
The tractor PTO gearbox is permanently lubricated (oil
filled) and sealed requiring no scheduled lubrication.
However, the gearbox oil seals should be checked
ev-
ery 25 hours for indication of oil leaks. If evidence of
an oil leak is noted, replace the oil seal and relubricate
the gearbox. The gearbox can be drained by removing
the plug on the gearbox cover. Replace plug and refill
gearbox using 5 fl. oz. (15cl) of SAE E.P. (Extreme
Pressure) 80W-90 gear lube.
With the deck removed, the tractor unit may need to be
tilted forward (resting on deck support arms) for posi-
tioning purposes, to add oil into the PTO gearbox.
Tractor PTO Gearbox Location
(view from underside of tractor)
Transaxle Lubrication - Model MW
•
The transaxle oil lubrication is SAE 20W-50 engine
oil.
•
Inspect both transaxle cases after every 100 hours
of operation for visible leaks. If a leak is detected, the
oil level should be checked through the breather port on
top of the transaxle. Using a clean rod, measure the oil
level by placing the rod in the fill port and bottoming out
the rod on the bottom of the case. Remove the rod and
measure the oil level on the rod. It should measure 4 to
4-1/4 in. (10 to 10.75 cm) total depth of oil.
DO NOT
overfill.
PTO
Gearbox
CAUTION
Do not leave the mower in this position for
an extended period of time to prevent oil
from draining into the heads and causing
possible engine damage.
PTO Gearbox
Drain Plug
PTO Gearbox
Fill Plug
Rear of Tractor