TM 5-4220-233-14
Table 4-1. Unit Preventive Maintenance Checks and Services (PMCS)
Q - Quarterly
S - Semiannual
A - Annual
Interval
Item
Item To Be
Procedures:
No.
Q
S
A
Inspected
1
BODY FRAME
*Inspect for cracks, bent members, and broken welds.
2
STORAGE CYLINDERS
a.
Check date on all eight storage cylinders If it is over 5 years
since last hydrostatic testing, defer cylinder(s) to Special Repair
Activity (SRA) maintenance level for new cylinder or a tested
cylinder.
b.
Check compressed gas breathing air sample to ensure it
meets BB-A-1034B, Source I, Grade A, requirements.
3
CONTROL PANEL
a.
Inspect manifold pressure and servicing pressure gauges
for current calibration.
b.
Inspect gauges for visual damage and accurate operation
(paragraph 2-6).
Note
Perform operator/crew PMCS, listed in Table 2-1, prior to or
along with unit PMCS.
4
INLINE FILTER
a.
Inspect for cleanliness Clean or replace, and reinstall
(paragraph 4-37) Filler should be checked more frequently If
system is exposed to periods of operation in dusty/sandy
conditions (Chapter 2, Section IV).
5
RELIEF VALVES
a.
Inspect relief valves for current calibration date
4-4
