Table of Contents
Advertisement
4.3.5 Engine Air Cleaner
a. Inspection
The oil bath air cleaner should be inspected
constantly for leaks. A damaged air cleaner or hose can
seriously affect the performance and life of the engine.
The following simple service steps are easily made while
the engine is being serviced in the field.
The simple service steps are as follows:
1. Check all connections for mechanical tightness.
Be sure cleaner outlet pipe is not fractured.
2. If cleaner has been dented or damaged, check all
connections immediately.
3. In case of leakage and if adjustment does not
correct the trouble, replace necessary parts or gaskets.
Swelled or distorted gaskets must always be renewed.
b. Service Intervals and Service Procedure
(Oil Bath)
1
1.
Pre-Cleaner
2.
Air Cleaner
3.
Air Cleaner Clamp
4.
Oil Cup
Figure 4-2. Air Filter
1. Oil Cups
When to Service:
Remove the oil cup at regular intervals. Initially
inspect daily or as often as conditions require. Never
allow more than 1/2 inch (12.7 mm) of dirt deposit in the
cup. More than 1/2 inch accumulation could result in oil
and dirt to carry over into the engine causing accelerated
engine wear. Heavily contaminated oil will not allow the
air cleaner to function properly.
CAUTION
Always cover the engine inlet tube while the air
cleaner is being serviced.
How to Service:
Stop the engine and remove the oil cup from the air
cleaner. Dump the oil from the oil cup. Clean the cup of
sludge.
Reassemble and fill the oil cup to the indicated level
with SAE #10 oil for temperatures below freezing or
SAE #30 for temperatures above freezing. It is generally
a recommended practice to use the same oil as required
in the engine crankcase.
Do not underfill or overfill the cup. Overfilling of
cup means loss of capacity and underfilling
means lack of efficiency.
2. Body Assembly
When to Service:
The lower portion of the fixed element should be
inspected each time the oil cup is inspected or serviced. If
there is any sign of contaminant buildup or plugging, the
body assembly should be removed and back flushed. At
2
least one a year or at regular engine service periods
remove the entire air cleaner and perform the following:
D Remove oil cup. Check and clean center tube. DO
3
NOT USE GASOLINE.
D Pump solvent through the air outlet with sufficient
force and volume to produce a hard, even stream out the
bottom of the body assembly. Reverse flush until all
foreign material is removed.
4
4.3.6 Servicing Glow Plugs
The glow plugs are parallel connected and when
energized, draw 10 amps at 12 vdc. When servicing, the
glow plug is to be fitted into the cylinder head to prevent
damage to the glow plug.
Torque value for the glow plugs is 28.9 to 36.2 ft-lb (4.0
to 5.0 mkg).
Checking for a Defective Glow Plug:
a. One method is to remove the injector and then
energize the glow plug. The glowing tip may then be
observed.
b. Another method is to place an ammeter (or
clip-on ammeter) in series with each glow plug and
energize the plugs. Each plug (if good) should show
amperage draw.
4.3.7 Engine Crankcase Breather
The engine uses an open type breather with the
breather line attached to the engine crankcase.
4-3
CAUTION
Advertisement
Table of Contents
