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 205 of 524
TM5-2330-378-14&P
4-53.
SPRING BRAKE CHAMBER REPLACEMENT (continued).
12.
Place a square (or equivalent object) so one edge is parallel with push rod (110)and the other edge is against
camshaft (111).
13.
Measure the distance between the outside of camshaft (11) and the center of clevis pin (13). The distance
should be between
11/2
inches and
23/4
inches (3.81 cm and 6.98 cm).
14.
Ifthe distance is incorrect, repeatsteps
11 through 13, threading clevis adapter(5) onto the push rod an additional
1/16
of an inch (0. 16 cm) each time.
15.
Torque clevis adapter (5)to 10 ft-lb (14 N-m). Turn jam nut (4) until it is against clevis adapter (5). Hold clevis
adapter (5) in place and torque jamnut between 34 and 50 ft-lb (45 and 67 N-m).
16.
Install two air hoses (1) on two elbows (2) on brake chamber (3).
2
11
112 in.
(3.81
cm)
3
TO @
2 314 In.
16.98 CM
10
0
4
5
3
0
0
0
AXLE
BRACKET
OMITTED
FOR
CLARITY
FOLLOW-ON
TASKS:
• Close
drain
cocks
(para
3-8).
• Pressurize air system (para 3-8).
• Test airbrake system for leaks (Table 2-1, items 11 and 13).
• Adjust brakeshoes (para 4-47).
4-117
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