REMOVE AND REPLACE OR REPAIR DEFECTIVE COMPONENTS
Once you have isolated a malfunction in the compressor, you must remove and
replace or repair the defective component. Refer to Lesson 1 for the list of tools you
use on this task. The procedures covered in this lesson are examples of the methods to
use to correct common malfunctions. Remember, whenever you remove and replace or
repair a defective component, before you put the unit back in service, you must perform
the operational checkout discussed in Lesson 2, Perform Verification of Compressors.
In accordance with AR 750-1, the Maintenance Allocation Chart (MAC) is the
primary tool for assigning tasks within the levels of the Army maintenance
system. Before any large repairs are performed, check the MAC to ensure
that you are authorized to perform the task.
Always remove compressor tank pressure by opening the drain valve
and waiting for the pressure gauge to read zero psi before
disassembling the compressor components.
REMOVE MAJOR COMPONENTS OF THE COMPRESSOR
a. Remove the Compressor Assembly From the Transit Case. To remove
the compressor assembly from the transit case, refer to figure 1-1 and use the following
(1) Remove the four nuts, lock washers, and flat washers from the bolts
securing the compressor base plate to the transit case bottom.
(2) Lift the compressor assembly (mounted on the base plate) from the
transit case bottom.
If the sound foam is damaged, remove and replace it.
The four bolts extending through the lower transit case have rubber washers
under the heads. Be sure they are in place when reassembling to ensure
water proof integrity.
Reassemble in reverse order of removal.