1998 S/N 21329 - Walker Mowers
1998 S/N 21329 - Walker Mowers
1998 S/N 21329 - Walker Mowers
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Maintenance Instructions<br />
LUBRICATION<br />
Mower Deck Gearbox Lubrication<br />
NOTE: These instructions apply to all mower decks<br />
with gear-driven blades. Refer to DSD52 or DSD62<br />
Mower Deck Lubrication in this section for the<br />
DSD52 or DSD62 deck with belt-driven blades.<br />
The mower deck gearboxes (tee gearbox and blade<br />
drive gearboxes) are connected as a unitized assembly,<br />
and oil flows freely between them. The gearboxes<br />
are permanently lubricated (oil filled) and sealed<br />
requiring no scheduled lubrication. However, the<br />
gearbox oil seals should be checked every 25 hours<br />
for indication of an oil leak; particularly the lower<br />
seals on the blade drive gearboxes should be inspected,<br />
since they operate in a dirty environment. If<br />
an oil leak is noted, replace the oil seal and relubricate<br />
the gearbox assembly as follows:<br />
1. Remove gearbox cover (footrest). Deck orientation<br />
should be the normal operating position.<br />
Blade Drive<br />
Gearboxes<br />
Tee<br />
Gearbox<br />
NOTE: In case the gearboxes are completely<br />
drained of oil, approximately 5 fl. oz. (15 cl) of oil<br />
per gearbox is required to refill the gear drive<br />
assembly.<br />
NOTE: Since the gearboxes are connected as<br />
a unit by connector tubes, it is necessary to add<br />
oil slowly. Allow a few minutes after adding oil<br />
for the oil to flow throughout the assembly and<br />
the oil level to stabilize before reassembly.<br />
IMPORTANT: DO NOT overfill the deck gearboxes.<br />
The gearbox assembly is not vented,<br />
and overfilling with oil will cause excessive pressure<br />
and result in oil leaks.<br />
5. Check condition of the cover gasket and replace<br />
if worn or damaged. Reinstall gearbox cover<br />
plates; torque screws to 24 in-lb (2.7 N⋅m).<br />
DSD52 or DSD62 Mower Deck Lubrication<br />
There are several special lubrication requirements<br />
for the DSD52 or DSD62 mower deck in addition to<br />
the requirements detailed in the Chassis and Deck<br />
Lubrication illustration. Lubricate the locations<br />
shown in the Blade Spindle Lubrication and Gearbox,<br />
Dolly Wheel, and U-Joint Lubrication photos<br />
and check and maintain oil in the belt drive gearbox.<br />
1. Lubricate the blade spindles every 25 hours<br />
with two (2) shots of SAE general purpose lithium<br />
or molybdenum base grease.<br />
Blade<br />
Spindles<br />
Mower Deck Gearboxes<br />
(shown with gearbox cover removed for clarity)<br />
2. Clean the area around the individual gearbox<br />
cover plates to prevent contaminants from entering<br />
the gearcase.<br />
3. Remove the screws securing the cover plates<br />
on the blade drive gearboxes.<br />
4. Check the level of lubricant in the gearboxes. If<br />
the lubricant is low, add SAE E.P. (Extreme<br />
Pressure) 90W oil until the oil level is up to (submerges)<br />
the horizontal shaft in the gearbox<br />
(shaft parallel to cover plate).<br />
Blade Spindle Lubrication<br />
50