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TM 9-2330-398-24
2-55. SAFETY RELIEF VALVE REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
c. Test
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
• Common no. 2 tool set (Item 2, Appendix B)
• Semitrailer uncoupled (refer to TM 9-2330-356-10).
• General mechanic's tool kit (Item 4, Appendix B)
• Semitrailer bonded and grounded (refer to
TM 9-2330-398-1 0).
Materials/Parts:
• Antiseize tape (Item 30, Appendix C)
a. REMOVAL
1. Remove air line (1) and adapter (2) from end of
safety relief valve (3).
2. Remove valve (3) from nipple (7).
3. Remove nipple (7) from elbow (6).
4. Remove elbow (6) and bushing (5) from primary
(rear) air reservoir (4).
b. INSTALLATION
1. Install elbow (6) and bushing (5) on air reservoir
(4).
2. Apply Teflon Antiseize tape to threads of nipple
(7), and install nipple (7) in elbow (6). Install side
port of valve (3) on nipple (7).
3. Install air line (1) and adapter (2) on valve (3).
c. TEST
1. Attach end of air system test gage, without valve,
to semitrailer emergency gladhand.
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