Mower Deck Gearbox Lubrication - Walker T27i Operator's Manual

T27i

Mower Deck Gearbox Lubrication

NOTE: These instructions apply to all mower
decks with gear-driven blades. Refer to DS52
Mower Deck Lubrication on page 60 for the
DS52 deck with belt-driven blades. Refer to Mow-
er Deck Spindle Lubrication on page 60 for
mower decks 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
lubricated (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
gearbox 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
Maintenance Instructions
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 add-
ing oil for the oil to flow throughout the assem-
bly and the oil level to stabilize before reas-
sembly.
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 re-
place if worn or damaged. Reinstall gearbox
cover plates; torque screws to 24 lb·in. (3
N·m).
Lubrication
59