MCi Crusader II 1989 Maintenance Manual page 315

Date
1-1-89
Page · ___
9 -_ 7 _ _
MC-9 MAINTENANCE MANUAL
REMOVABLE ELEMENT SERVICING
The first step in servicing the removable element assembly
is to hold a strong light as close to the element as possible. An
even, bright pattern of light through the wire element means
that the element is clean. A dull pattern of light means that the
element is partially plugged with dirt and should be cleaned or
replaced. To clean the air cleaner, proceed as follows:
1. Wash the element thoroughly with solvent and blow dry
with compressed alr.
2. Inspect the lower portion of the air cleaner body and the
center tube each time the oil cup is serviced.
If there is any sign of sludge build-up or plugging, the body
should be removed and cleaned. At least once a year the body
should be removed and serviced in the following manner:
1. Remove the oil cups and removable element assembly.
2. Check and clean the center tube.
3. Spray solvent through the air outlet with sufficient force
and volume to produce a hard, even stream out the bottom of
the body. Reverse flushing in this manner will remove all dirt
from the fixed element
CAUTION: Always cover the engine air
intake while the air cleaner is being
serviced.
Figure 9~6B. Oil Type Air Cleaner Installed.
GENERAL SERVICING
The air cleaner should be routinely inspected for leaks. A
damaged air cleaner can seriously affect the performance and
life of the engine. The following simple service practices are
easily made while the engine is being serviced:
1. Inspect all connections for mechanical tightness and be
Jure that the air cleaner-0uttet port is not fractured.
2. If the air cleaner has been dented or damaged, inspect all
conneqtions immediately.
3. In the event that adjustments do not correct air leakage,
replace necessary parts.
FILTER INSPECTION CHECK-OFF
Check the following items at regular intervals:
1. Mounting Bolts and Brackets
2. Air Cleaner Body Damage
3. Restriction Indicator Connection (Leak)
4. Body to Inlet Joint (Damage)
5. Body to Outlet Joint (Leak)
6. Connections to Engine (Leak. Damage)
7. Filter Element (Dirty, Damage)
AIR CLEANER (DRY TYPE)
DESCRIPTION AND OPERATION
The later MC-9 coach is equipped with a dry-type air
cleaner with a replaceable filter located at the rear of the
coach. The air cleaner is accessible through the left hand side
engine compartment service door.
Air flows through the left hand radiator and enters the air
cleaner through the top inlet. As air passes through the air
cleaner, dirt is deposited in the filter element, allowing clean
air to flow through the outlet into the engine.
INSPECTION
A routine inspection of the air induction system will help to
prolong engine life.
The air filter restriction indicator (see figure 9- 7) should be
checked daily to ensure that the filter element does not require
changing.
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Figure 9-7. Restriction Indicator.