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 206 of 524

TM 6-2330-378-14&P

4-54. RELAY EMERGENCY VALVE REPLACEMENT, OPERATING TEST, AND LEAKAGE

TEST.

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

,

AppendixF)

(Item 7, Appendix B)

- Tape, antiseizing (item 21, Appendix F)

a.

REMOVAL

1 .

Open drain cocks (pare 3-8).

2.

Tag and disconnect four air hoses (1) from relay emergency valve (2).

3.

Remove relay emergency valve (2) from rear air reservoir tank (3).

REAR

.40

3

t

1

2

2

FRONT

NOTE: VIEW FROM TOP

LOOKING DOWN

4-118