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TM 9-2320-386-24-1-1
0170 00
AIR COMPRESSOR GOVERNOR MAINTENANCE (Contd)
REMOVAL
.WARNING.
Do not disconnect air lines before draining air reservoirs. Small
parts under pressure may shoot out with high velocity, causing
injury to personnel.
Eyeshields must be worn when releasing compressed air. Failure
to do so may result in injury to personnel.
CAUTION
When disconnecting air lines and hoses, plug all openings to
prevent dirt from entering and causing damage to internal parts.
Remove plugs prior to installation.
NOTE
Tag air lines for installation.
1.
Remove nuts (5) and (15), air lines (6) and (14) with sleeves (4) and (16) from elbows (3) and (17) on
governor (7).
2.
Remove elbows (3) and (17) from governor (7).
3.
Remove schader valve (8) from governor (7).
4.
Remove two screws (10), lockwashers (9), governor (7), and gasket (2) from air compressor (1).
Discard lockwashers (9) and gasket (2).
INSTALLATION
1.
Apply sealant to male threads of elbows (3) and (17) and schader valve (8).
2.
Install new gasket (2) and governor (7) on air compressor (1) with two new lockwashers (9) and
screws (10).
3.
Install elbows (3) and (17) on governor (7).
4.
Install air lines (6) and (14) with sleeves (4) and (16) on elbows (3) and (17) with nuts (5) and (15).
5.
Install schader valve (8) on governor (7).
CHECK AND ADJUSTMENT
1.
Check air pressure. Gauge should read 120 psi (827 kPa).
2.
If air pressure gauge reading is correct, task is complete.
3.
If air pressure gauge reading is too low:
a.
Remove cap (11), loosen jamnut (13), and turn screw (12) 1/4-turn counterclockwise.
b.
Repeat step a. If air pressure is still low, check for air leaks and repeat step a until air
pressure is correct.
c. If air pressure is correct, tighten jamnut (13) on screw (12), and install cap (11).
4.
If air pressure gauge reading is too high:
a. Bleed air pressure until gauge reads below 120 psi (827 kPa).
b. Remove cap (11), loosen jamnut (13), and turn screw (12) 1/4-turn clockwise.
c. Repeat step b. If pressure is still high, repeat step b until air pressure is correct.
d. If air pressure is correct, tighten jamnut (13) on screw (12), and install cap (11).
5.
Start engine (TM 9-2320-386-10) and allow air pressure to build up to normal operating pressure.
Check for air leaks and road test vehicle.
0170 00-2
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