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Maintenance Instructions
Lubrication
Mower Deck Gearbox Lubrication
NOTE: These instructions apply to all mower
decks with gear-driven blades. Refer to Mower
Deck Spindle Lubrication on this page for all mow-
er 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).
NOTE: In case the gearboxes are completely
drained of oil, approximately 5 fl. oz. (15 cl) of
54
Tee
Gearbox
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).
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.
Check Transaxle Fluid Level
●
The transaxle oil lubrication is SAE 20W-50
(API Service Class SL or higher) engine oil.
●
Inspect both transaxle cases after every 25
hours of operation for visible leaks.
●
The fluid level of the transaxles can be
checked visually by looking at the fluid level in
the expansion reservoir. When the transaxles
are cold, the fluid level in the expansion reser-
voir should be between 1/4 in. and 1/2 in. (6-13
mm) from the bottom, near the Cold Level line.
Reservoir Cap
Hot Level
Expansion Reservoir Location
S18
Hose to
Transaxles
Cold Level
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