Preventive Maintenance
Lubricate sparingly to avoid getting grease on the clutch
facing.
Open the cover on the side of the clutch housing (8" and
10" diameter clutch) and lubricate the clutch release sleeve
collar through the grease fitting every 8 hours. On the 11-
1/2" diameter clutch, lubricate the collar through the fitting
on the side of the clutch housing every 8 hours.
Lubricate the clutch drive shaft pilot bearing through the
fitting in the outer end of the drive shaft (8" and 10 "
diameter clutch power take-offs) every 50 hours of
operation. One or two strokes with a grease gun should be
sufficient. The clutch drive shaft pilot bearing used with
the 11-1/2" diameter clutch power take-off is prelubricated
and does not require lubrication.
Lubricate the clutch drive shaft roller bearings through the
grease fitting in the clutch housing every 50 hours under
normal operating conditions (not continuous) and more
often under severe operating conditions or continuous
operation. Lubricate the clutch release shaft through the
fittings at the rear of the housing every 500 hours of
operation.
Lubricate the clutch levers and links sparingly with engine oil every 500 hours of operation. Remove the inspection hole
cover on the clutch housing and lubricate the clutch release levers and pins with a hand oiler. To avoid getting oil on the
clutch facing, do not over lubricate the clutch release levers and pins.
Check the clutch facing for wear every 500 hours. Adjust the clutch if necessary.
Item 29
Check the oil level in the Torqmatic converter and supply tank daily. The oil level must be checked while the converter is
operating, the engine idling and the oil is up to operating temperature (approximately 200 F or 93 C). If the converter
is equipped with an input disconnect clutch, the clutch must be engaged.
Check the oil level after running the unit a few minutes. The oil level should be maintained at the proper level on the
dipstick. If required, add hydraulic transmission fluid type "C-2" (Table 1). Do not overfill the converter as too much oil
will cause foaming and high oil temperature.
The oil should be changed every 500 hours of operation. Also, the oil should be changed whenever it shows traces of
dirt or effects of high operating temperature as evidenced by discoloration or strong odor. If the oil shows metal
contamination, contact an authorized Detroit Diesel Allison Service Outlet as this usually requires disassembly. Under
severe operating conditions, the oil should be changed more often.
The converter oil breather, located on the oil level indicator (dipstick), should be cleaned each time the converter oil is
changed. This can be accomplished by allowing the breather to soak in a solvent, then drying it with compressed air.
OIL RECOMMENDATIONS
Prevailing
Ambient
Recommended Oil
Temperature
Specification
Above
-10F (-230C)
Hydraulic Transmission Fluid, Type C-2.
Hydraulic Transmission Fluid, Type C-2. Aux-
Below
iliory preheat required to raise temperature
--10F(--23C)
in the sump to a temperature above -10F. (-23C)
TABLE 1
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Preventive Maintenance
