TM-9-2320-429-10
TRUCK, TANK, 8X8, M978
TECHNICAL MANUAL; OPERATOR'S MANUAL
JUNE 2009
TM-9-2320-429-10 - Page 724 of 1096
Figure 1.
CONDITION/INDICATION
Are any petcock valves open?
DECISION
Petcock(s) open - Test 5 - Does air system lose pressure during operation?
Petcocks closed - Test 2 - Is trailer air supply control in correct position?
TEST 2 - Is trailer air supply control in correct position?
1.
Check if trailer air supply control is pulled out (OFF position) if no trailer is coupled,
and pushed in (ON position) if trailer is coupled.
TM 9-2320-429-10
0118
0118-2
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