MAINTENANCE OF THE M88A1 - OD1672 - LESSON 2/TASK 1
the intake of fresh air for combustion. In the process of troubleshooting
this malfunction, unit maintenance personnel must first check the air filter
restriction gage (refer to figure 17, view B, on page 39) located above each
of the two air cleaners. If the sleeve (2) (figure 17, view B) inside the
gage is green, the air cleaner is working properly and does not need
servicing. If the sleeve (2) inside the gage is red, the air filter element
is clogged and needs to be cleaned or replaced.
For the purpose of this
task, it is assumed that maintenance personnel find that the red sleeve is
showing in both air cleaner restriction gages.
Upon further inspection,
maintenance personnel find that the right side horizontal air intake hose is
bent, preventing the proper flow of air to the cylinders on that side of the
The following maintenance, adjustment, and repair procedures
describe the maintenance of the air cleaner and the replacement of the right
side air intake hose.
(2) Maintenance, Adjustment, and Repair.
(a) Maintenance of the Air Cleaner.
Since the procedure for servicing both air cleaners is
following step describes the procedure for one air cleaner.
Step 1. Clean away any dirt or mud that is restricting the free flow of air
through the air intake screen (figure 25 on the following page).
NBC (nuclear, biological, and chemical) contaminated
filters must be handled using adequate precautions, as
stated in FM 21-40, and must be disposed of by CBR
Step 2. Loosen and pull away four wing nut clamps (1) (refer to figure 17,
view A) from the dust cover (2) and remove the dust cover.
Step 3. Remove the dust cover baffle (3) by removing the wing nut (4) and
pulling the ring (5). Clean the dust cover with a water-damp cloth.