TM-9-2330-335-14-P
SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)
SEPTEMBER 2008
TM-9-2330-335-14-P - Page 615 of 640
0110-3
TM 9-2330-335-14&P
0110
ADJUSTMENT
000110
1.
The adjuster must be manually adjusted at this time.
2.
Rotate the adjusting hex clockwise until the lining lightly contacts the drum.
3.
Back-off the adjuster by turning the adjusting hex counterclockwise 1/2 of a turn (Figure 4).
4.
A minimum of 13 lb-ft is necessary to overcome the internal clutch. A ratcheting sound will be present.
WARNING
DO NOT use an impact wrench or permanent internal damage will occur!
NOTE
To ensure proper fit and function, always replace both adjuster and mounting bracket, as a set.
Figure 4.
Adjustment.
0110
END OF TASK
HOW TO MEASURE PUSH ROD STROKE
000110
NOTE
The maximum effective push rod stroke, as recommended by the air brake chamber manufacturer,
must be less than 2.5 in. (6.4 cm).
1.
With a tape measure, measure the movement of the push rod from the completely released position to the applied
position 90 to 100 psi (621 to 690 kPa).
2.
This movement can also be measured by:
a.
Putting a mark on the push rod where it exits the air brake chamber (BRAKE RELEASED).
b.
Applying the brake.
c.
Measuring the movement of the mark to the face of the air brake chamber housing.
END OF TASK
447-0168
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