Section X. CARRIER SAFETY VALVE ASSEMBLY
370. General
The carrier safety valve assembly consists of a
spring loaded ball check valve and is used to protect the
air brake system against excessive pressure. The
safety valve is usually set for 150 pounds pressure but
can be varied to unit requirements.
371. Carrier Safety Valve Assembly Removal and
Disassembly
a. Removal. Remove the carrier safety valve
assembly (TM 5-3810-207-20).
b. Disassembly. Disassemble the carrier safety
valve assembly in numerical sequence as illustrated on
372. Carrier Safety Valve Assembly Cleaning,
Inspection, and Repair
a. Cleaning. Clean all parts with an approved
cleaning solvent and dry thoroughly.
b. Inspection and Repair. Inspect all parts for
excessive wear and damage. Replace or repair all
defective parts.
373. Carrier Safety Valve Assembly Reassembly
and Installation
a. Reassembly. Reassemble the carrier safety
valve assembly in the reverse of the numerical
sequence as illustrated on figure 104.
b. Installation.
Install the carrier safety valve
assembly (TM 5-3810-207-20).
1
Screw, cap, 5/16-18 x in. (4 rqr)
2
Washer, lock, 5/16 in. (4 rqr)
3
Cover
4
Disk valve
5
Spring
6
Valve seat
7
Packing
8
Valve guide
9
Packing
10
Packing
11
Spring
12
Service and exhaust valve
13
Capnut
14
Caps
15
Plunger
16
Nut, -28
17
Washer, in.
18
Follower
19
Diaphragm
20
Follower
21
Washer, in.
22
Packing
23
Spring
Figure 102. Carrier air brake protection valve assembly,
24
Plug, pipe, in.
exploded view.
25
Body
TAGO 5030A
171
