TM 9-2330-379-14&P
EMERGENCY RELAY VALVES
This task covers:
a. Removal (page 4-131)
b. Installation (page 4-134)
INITIAL SETUP:
Tools
Materials/Parts
General mechanics tool set
Antiseize tape (item 8, Appendix E)
Pipe sealant (item 9, Appendix E)
Equipment Conditions
Wheels chocked.
Air brake system drained.
ACTION
LOCATION
ITEM
REMARKS
REMOVAL
1
Front
Hose assemblies
Tag hose assemblies (3) and (4) and
dolly (1)
(3) and (4) from
remove hose assemblies and two 3/8 street
emergency
front wheel brakes
elbows (5) from front dolly (1).
relay valve
and two 3/8 street
(2)
elbows (5)
2
Hose assembly
Tag hose assembly (6), and remove hose
(6) and 3/8
assembly and 3/8 street elbow (7) from
street elbow (7)
emergency relay valve (2).
3
Hose assembly
Tag hose assembly (8) and remove hose
(8) and 3/8
assembly and 3/8 street elbow (9) from
street elbow (9)
emergency relay valve (2).
4
Two hose assem-
Tag two hose assemblies (10) and (11),
blies (10) and
and remove hose assemblies, nipple (12)
(11), 3/8 to 1/4
and tee (13) from front dolly emergency
nipple (12) and
relay valve (2).
3/8 tee (13)
5
Connecting
Hose assembly
Tag hose assembly (15) and remove pipe
link (14)
(15), pipe
bushing (18), bulkhead fitting (17), and
bushing (18),
reducer coupling (16) and remove emer-
bulkhead fitting
gency relay valve (2).
(17) and reducer
coupling (16)
4-131
