TM-9-2320-431-10-2
TRUCK, WRECKER, 8X8, M984A1
TECHNICAL MANUAL; OPERATOR'S MANUAL; PART 2 OF 2
JUNE 2009
TM-9-2320-431-10-2 - Page 161 of 712
3.
Operate engine (Volume 1, WP 0044) for 20 minutes with PTO enabled to bring
hydraulic fluid up to operating temperature.
4.
Attempt to raise or lower boom. (Volume 1, WP 0106)
CONDITION/INDICATION
Does boom raise or lower normally after running engine for 20 minutes with PTO
engaged?
DECISION
No - Test 2 - Does boom raise or lower normally after cycling mast?
Yes - Problem corrected.
TEST 2 - Does boom raise or lower normally after cycling mast?
1.
Lower crane to stowed position. (Volume 1, WP 0106)
2.
Operate MAST control DOWN. (Volume 1, WP 0106) Hold MAST control DOWN for
approximately 30 seconds, then return control to NEUTRAL position. Repeat
procedure several times until hydraulic fluid is warmed.
Figure 2.
3.
Raise crane to operating position. (Volume 1, WP 0106)
4.
Raise and lower boom. (Volume 1, WP 0106)
TM 9-2320-431-10-2
0156
0156-3
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