Mower Deck Gearbox Lubrication; Ds52 Or Ds62 Mower Deck Lubrication - Walker T23 Operator's Manual

Maintenance Instructions

Mower Deck Gearbox Lubrication

NOTE: These instructions apply to all mower decks
with gear-driven blades. Refer to DS52 or DS62
Mower Deck Lubrication in this section for the
DS52 or DS62 deck with belt-driven blades. Refer
to Mower Deck Spindle Lubrication in this section
for the DS42 Belt Drive deck with belt-driven blades.
On gear driven decks, the mower deck gearboxes
(tee gearbox and blade drive gearboxes) are con-
nected as a unitized as sembly, and oil flows freely
between them. The gear boxes are permanently lu-
bricated (oil filled) and sealed requiring no sched-
uled lubrication. Howev er, the gearbox oil seals
should be checked every 25 hours for indication of
an oil leak; particularly the lower seals on the
blade drive gearboxes should be inspected, since
they operate in a dirty en vironment. If an oil leak is
noted, replace the oil seal and relubricate the gear-
box assembly as follows:
1. Remove gearbox cover (footrest). Deck orien-
tation should be the normal operating position.
Blade Drive
Gearboxes
Mower Deck Gearboxes
(Shown with Gearbox Cover
Removed for Clarity)
2. Clean the area around the individual gearbox
cover plates to prevent contaminants from en-
tering the gearcase.
3. Remove the screws securing the cover plates
on the blade drive gearboxes.
4. Check the level of lubricant in the gearboxes. If
the lubricant is low, add SAE E.P. (Extreme
Pressure) 80W-90 (API GL-5) gear lube until
the oil level is up to (submerges) the horizontal
shaft in the gearbox (shaft parallel to cover
plate).
Tee
Gearbox
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.
NOTE: Since the gearboxes are connected as
a unit by connector tubes, it is necessary to add
oil slowly. Allow a few minutes after adding oil
for the oil to flow throughout the assembly and
the oil level to stabilize before reassembly.
IMPORTANT: DO NOT overfill the deck gear-
boxes. The gearbox assembly is not vented,
and overfilling with oil will cause excessive pres-
sure and result in oil leaks.
5. Check condition of the cover gasket and
replace if worn or damaged. Reinstall gearbox
cover plates; torque screws to 24 lb

DS52 or DS62 Mower Deck Lubrication

There are several special lubrication requirements
for the DS52 or DS62 mower deck in addition to the
require ments detailed in the Chassis and Deck
Lubrica tion Points illustration. Lubricate the loca-
tions shown in the Gearbox, Dol ly Wheel, and U-
Joint Lubrication photo and check and maintain oil
in the belt drive gearbox.
1. Check the oil level in the belt drive gearbox ev-
ery 100 hours (or sooner if a visible oil leak has
developed). With the deck in the normal oper-
ating position, remove the level plug in the side
of the gearcase. Add SAE E.P. (Extreme Pres-
sure) 80W-90 (API GL-5) gear lube to maintain
the oil level to the plug. If the oil level is low,
check the gear box for any indication of an oil
leak. If an oil leak is noted, the gearbox will
need to be removed and rebuilt.
2. Lubricate the dolly wheel pivot every 25 hours
with general purpose grease.
3. Lubricate both drive shaft u-joints every 25
hours with SAE general purpose lithium or
molybdenum base grease.
LUBRICATION
· ·
in. (3 N m).
57