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TM 9-2330-398-24
2-56. PARKING BRAKE CONTROL VALVE 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 9-2330-39810).
• Antiseize tape (Item 30, Appendix C)
• Air reservoir drained (refer to TM 9-2330-398-10).
a. REMOVAL
NOTE
Before removal, tag all hoses and lines for easy identification at installation.
1. Disconnect three air lines (6) and fittings (7) from two elbows (8) and adapter (11) on parking brake control valve
(1).
2. Remove roll pin (4), button (5), and boot (3) from
control valve (1). V 3. Remove nut (2) on neck
of control valve (1), and remove control valve (1)
from mounting bracket (9).
4. Remove two elbows (8) and adapter (11) from
three valve ports (10).
b. INSTALLATION
1. Install two elbows (8) and adapter (11) on three
valve ports (10).
2. Apply Teflon Antiseize tape to male threads of
control valve (1). With nut (2), install control
valve (1) on neck of mounting bracket (9).
3. Install boot (3), button (5), and roll pin (4) on
control valve (1).
4. Connect three air lines (6) and fittings (7) to two
elbows (8) and adapter (11) on control valve (1).
2-140
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