TM-5-2330-378-14-P
SEMITRAILER, LOWBED: 40 TON CONSTRUCTION EQUIPMENT TRANSPORTER M870 AND M870A1
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
JUNE 1999
TM-5-2330-378-14-P - Page 215 of 524
TM 5-2330-378-14&P
4-59. EMERGENCYRELAYVALVEREPLACEMENT,
OPERATINGTEST,ANDLEAKAGE
TEST (M870AI).
This Task Covers:
a.
Removal
b.
Installation
c.
Operating Test
d.
Leakage Test
Initial Setup:
Tools/Test
Equipment:
Materials/Parts,
- Tool kit, general mechanic's: automotive
- Detergent (item 4, Appendix F)
(item 7, Appendix B)
- Tape, antiseizing (Item 21, Appendix F).
- Self-locking nut (2) (item 29, Appendix 1)
a.
REMOVAL
I .
Open drain cocks (para 3-8).
2.
Tag and disconnect seven air hoses (1) from emergency relay valve (2).
3.
Removetwo screws (3), washers (4), and self-locking nuts (5)from mounting bracket (6) and emergency relay
valve (2). Discard self-locking nuts.
4.
Remove emergency relay valve (2) from mounting bracket (6).
b. INSTALLATION
1.
Install emergency relay valve (2) on mounting bracket (6).
2.
Install two new self-locking nuts (5), washers (4), and screws (3) on emergency relay valve (2) and mounting
bracket (6).
3.
1nstall seven air hoses (1) on emergency
relay valve (2).
4.
Close drain cocks (pare 3-8).
3
4
2
6
2
1
0
4-127
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