TM-9-2320-338-10
TRUCK, CARGO, 8X8, M977A4
TECHNICAL MANUAL; OPERATOR'S MANUAL
OCTOBER 2008
TM-9-2320-338-10 - Page 644 of 1120
Allison
TRAILER
AIR SUPPLY
M
M
REAR AIR
PRESSURE GAUGE
FRONT AIR
PRESSURE GAUGE
AIR
INDICATOR LIGHT
Figure 1.
3.
Turn engine OFF. (WP 0057)
CONDITION/INDICATION
Is air pressure greater than 75 psi (517 kPa)?
DECISION
No - Test 2 - Are any petcock valves open?
Yes - Notify Supervisor.
TEST 2 - Are any petcock valves open?
1.
Check if any air reservoir petcock/drain valves are open. If valve(s) open, close petcock
(s).
TM 9-2320-338-10
0104
0104-2
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