Preventative Maintenance
When service is required, contact an authorized Detroit
Diesel Allison Service Outlet.
Item 27
The power generator requires lubrication at only one point -
the ball bearing in the end frame. If the bearing is oil
lubricated, check the oil level in the sight gage every 300
hours; change the oil every six months. Use the same
grade of oil as specified for the engine. Maintain the oil
level to the line in the sight gage. Do not overfill. After
adding oil, recheck the oil level after running the generator
for several minutes.
If the bearing is grease lubricated, a new generator has
sufficient grease for three years of normal service.
Thereafter, it should be lubricated at one year intervals. To
lubricate the bearing, remove the filler and relief plugs on
the side and the bottom of the bearing reservoir. Add
grease until new grease appears at the relief plug opening.
Run the generator a few minutes to vent the excess
grease; then reinstall the plugs.
The following
greases,
or
their
equivalents,
are
recommended:
Item 25
Keystone 44H........................... Keystone Lubrication Co.
BRB Lifetime ............................ Socony Vacuum Oil Co.
NY and NJ F926 or F927.......... NY and NJ Lubricant Co.
After 100 hours on new brushes, or brushes in generators
that have not been in use over a long period, remove the
end frame covers and inspect the brushes, commutator
and collector rings. If there is no appreciable wear on the
brushes, the inspection interval may be extended until the
most practicable
period has been established (not to exceed six months).
To prevent damage to the commutator or the collector
rings, do not permit the brushes to become shorter than 3/4
inch.
Keep the generator clean inside and out. Before removing
the end frame covers, wipe off the loose dirt. The loose
dirt and dust may be blown out with low pressure air (25 psi
or 172 kPa maximum). Remove all greasy dirt with a
cloth.
Lubricate all of the power take-off bearings with an all
purpose grease such as Shell Alvania No. 2, or equivalent.
Item 27
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