TM 9-2330-356-14
d.
Inspection and Repair.
(1) Inspect wedge guide (7) for damage or wear.
If wedge guide is worn more than 25% of its thickness,
replace it.
(2) Check tube on non-pressure housing for pits,
grooves, or stripped threads. Replace housing if damage is
found.
(3) Inspect and replace diaphragm if it is tom or
cracked, or if rubber at sealing edge has become set or
distorted.
(4) Inspect diaphragm plate for bent push rod or
worn or cracked boot. Replace if not serviceable.
e.
Assembly.
(1) Install wedge guide (7) all the way onto end of
push rod of diaphram plate (6).
(2) Install collet nut (9).
(3) Clean non-pressure housing (8) with cement
and M970 except M970 SN TC-0843, TC-0844,
thinner or similar material in area where boot on
and TC-103 thru TC-178) (Standard).
diaphragm plate is to be cemented. Apply cement to
housing around tube end, then insert the diaphragm plate
(4) Remove diaphragm plate (6) and wedge guide
and push rod assembly into tube. Press boot into position
(7) from non-presure housing (8).
for cementing. Screw non-pressure housing (8) in place.
(4) Install new diaphragm (5) over plate and onto
(5) Unscrew collet nut (9).
non-pressure housing.
(6) Unscrew non-pressure housing (8).
(5) Install pressure housing (4), and secure with
clamp ring (3), bolt (1) and nut (2).
c.
Cleaning.
f.
leakage after installation by making full brake application
WARNING
and applying soapy water around clamp ring and
connections.
Dry cleaning solvent P-D-680 is toxic and
Brake Air Chamber M967, M969, and
flammable. Always wear protective goggles
M970 except M970 SN TC-0843, TC-0844, and TC-
and gloves, end us. only in a well-ventilated
103 thru T -178) (Fail-Safe Unit) (Fig. 6-5).
area. Avoid contact with skin, eyes, and
a.
clothes, and DO NOT breathe vapors. DO
NOT use near open flame or excessive heat.
Disassembly.
b.
The solvent's flash point is 100F-138F
(38C-59C). If you become dizzy while
(1) Remove nut (5) and bolt (4) from clamping
using cleaning solvent, Immediately get fresh
ring (6). Spread the clamping ring and remove from air
air and medical help. If solvent contacts eyes,
chamber.
immediately wash your eyes with water end
get medical aid.
(2) Carefully separate the fait-safe unit (1) from
the non-pressure housing (8). DO NOT disassemble the
(1) Clean metal parts with dry cleaning solvent
fail-safe unit. No repairs are authorized for this assembly.
(item 11, Appendix E).
(3) Carefully remove diaphragm (2) from
non-pressure housing (8).
(2) Clean diaphragm with mild soap solution.
Change 3
