Maintenance
Lubrication
Greasing the Cutting Unit
Each cutting unit has 4 grease fittings (
) that
must be lubricated every 8 hours of operation with
heavy duty No. 2 wheel bearing grease.
g026934
Figure 11
Note:
Do not use high pressure hose to clean
areas where there are seals or bearings because
foreign matter will likely be forced into the
bearing. The result will be rapid seal and bearing
deterioration. Lubricating the cutting unit
immediately after washing helps purge water out
of bearings and increases bearing life.
1.
Wipe each grease fitting with a clean rag.
2.
Apply the grease. When you feel pressure while
greasing the roller, the bearing cavity between
the seals is full.
Important:
Do not continue to grease
because the inner bearing seal may get
damaged.
3.
Wipe away any excess grease.
Checking the Gear Case Oil
1.
Position the cutting unit on a level surface.
2.
Raise and block the back of the cutting unit until
there is approximately 26 cm (10-1/4 inches)
between the bottom of the gear case extending
behind the roller bracket and the level surface
(
).
g026926
Figure 12
1.
26 cm (10-1/4 inches)
2.
Filler plug
3.
Remove the filler plug from inside of each gear
case (
). Check the oil level in the gear
case; it should be level with the bottom of the
filler hole. If the oil is level with bottom of the
hole, install the filler plug.
Important:
Check for oil leaks caused by
a worn or improperly installed O–ring or
gasket, and loose side-plate bolts. Make all
repairs before adding oil to the gear cases.
4.
If the oil level is low, fill the gear case with
80W-90 gear lubricant to the point of overflowing
and then install the filler plug.
Important:
Do not overfill the gear case.
Changing the Gear Case
Lubricant
Service Interval:
Yearly
The gear cases have been fully lubricated at the
factory. Once each season, drain and clean the right
and left gear cases. When the gear cases are clean,
add 80W-90 gear lubricant; refer to
Gear Case Oil (page 10)
.
Checking the Wheel Hubs
1.
Remove the wheels.
2.
Rotate the wheel hub (
) to check the
bearing adjustment. You should feel a slight drag
when you rotate the hub. If drag is not evident,
tighten the wheel hub nut (
) until you
feel a slight drag when you rotate the hub.
10
