Air Compressor Air Strainer; Other Engine Oil Uses - GMC 4000 Series Service Manual

Figure 10— Air Compressor Air Strainer
cleanable - is located on inside of cab at left rear
corner. Another type is made of polyurethane and
is installed in brake booster cylinder.
Cleanable Type
Lift element assembly from tube. Wash ele­
ment thoroughly in cleaning solvent until all ac­
cumulated dirt is removed. Dry thoroughly, then
reinstall. Do not oil element.
Disposable Type
Remove retaining bolt, then lift assembly
from tube. When inspection indicates the assembly
is dirty it should be discarded and a new assembly
installed.
Polyurethane Type
This cleaning element is removable for in­
spection and cleaning as instructed in BRAKES
(SEC. 5). Element is cleaned by immersing and
squeezing in kerosene or mineral spirits.
IMPORTANT
Regardless of where an air cleaner
is used, it is extremely important that
element be cleaned as directed to assure
extended life of applicable unit.

AIR COMPRESSOR AIR STRAINER

(Refer to Fig. 10)
The air com pressor air strainer should be
replaced regularly.
G M C S E R V I C E M A N U A L _________________________ page 11
is used on all models and should be replaced when
element shows visible evidence of damage or a
dirt clogged condition or is oil saturated.
DISTRIBUTOR
apply one drop of S.A.E. 10 engine oil to breaker
arm pivot. Do not apply excessive lubricant.
distributors. Apply 3 or 4 drops of S.A.E. 20 engine
oil.
Figure 1 1 — Crankcase Breather (V6 Gasoline Engine)
Paper element type air compressor cleaner

OTHER ENGINE OIL USES

Breaker Pivot. Remove distributor cap and
Rotor Felt. A felt is used under rotor of some
SEP A R A T O R
Figure 12— Crankcase Ventilation System (Diesel)
LUBRICATION
FILTER