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TM 9-2330-398-24
2-58.
BRAKE AIR HOSE REPLACEMENT.
This Task Covers:
a.
Removal
b.
Installation
c.
Test
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
• General mechanic's tool kit (Item 4, Appendix B)
• Semitrailer uncoupled (refer to TM 9-2330-398-10).
• Semitrailer bonded and grounded (refer to
Materials/Parts:
TM 9-2330-398-10).
• Sealing compound (Item 27, Appendix C)
• Air reservoirs drained (refer to TM 9-2330-398-10).
a.
REMOVAL
1. Disconnect two brake air hoses (2) from two elbows (1) and brake air chamber (4). Remove hose separator (3)
from two brake air hoses (2).
2. Disconnect two brake air hoses (13 and 14) from brake air chamber (4), exhaust manifold (15), and pipe reducer
(16). Remove hose separator (3) from two air hoses (13 and 14).
3. Remove two retaining straps (10) and tiedown straps (12) from two brake air hoses (11). Disconnect two air
hoses (11) from two adapters (6) and elbows (1).
4. Remove four compression sleeves (7), inserts (8), and nuts (9) from two adapters (6) and elbows (1).
5. Remove two fittings (5) from two elbows (1).
b.
INSTALLATION
1. Apply sealing compound to all male pipe threads.
2. Install two fittings (5) on two elbows (1).
NOTE
Air line hoses are stocked in bulk lengths. Measure original air line hoses and cut new air line
hoses to same length. Trim ends of air line hoses to get a smooth, square cut.
2. Install four nuts (9), inserts (8), and compression sleeves (7) into two adapters (6) and elbows (1).
3. Connect two brake air hoses (11) to two adapters (6) and elbows (1). Install two retaining straps (10) and tiedown
straps (12) on brake air hoses (11).
4. Connect two brake air hoses (13 and 14) to brake air chamber (4), exhaust manifold (15), and pipe reducer (16).
Install hose separator (3) on brake air hoses (13 and 14).
5. Connect two brake air hoses (2) to elbows (1) and brake air chamber (4). Install hose separator (3) on air hoses
(2).
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