TM 5-3895-385-23-1
0102
Table 1. Hopper Wings Fail to Open Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Hydraulic solenoid malfunction.
1. Attempt manual override test of
1. If hopper wings open, turn
side wing down hydraulic
keyless engine switch to the
solenoid on main manifold (WP
OFF position (TM 5-3895-385-
0312, Vol 2).
10), and replace side wing
hydraulic solenoid (WP 0312,
Vol 2).
2. If hopper wings do not open, turn
keyless engine switch to the
OFF position (TM 5-3895-385-
10), and proceed to next test.
2. Attach hydraulic pressure tester
(WP 0442, Vol 3) to hydraulic
fitting SWB on the main
hydraulic manifold (WP 0441,
Vol 3, Figure 3, Item 12).
3. Start BMPM engine (TM 5-3895-
385-10).
4. Check hydraulic pressure at
1. If hydraulic pressure reads a
hydraulic fitting SWB on the
minimum of 1800 psi (12,410
main hydraulic manifold (WP
kPa), turn keyless engine switch
0441, Vol 3, Figure 3, Item 12).
to the OFF position (TM 5-3895-
while pressing hopper wing out
385-10), restore equipment to
key on pedestal top.
original condition, and proceed
to next malfunction.
2. If pressure reads below 1800 psi
(12,410 kPa), replace hopper
wing hydraulic solenoid (WP
0312, Vol 2).
6. Loss of hydraulic pressure.
1. Determine which hopper wing
hydraulic cylinder is
malfunctioning by attempting to
open hopper wings and
observing which side does not
open properly.
2. Attach hydraulic pressure tester
(WP 0442, Vol 3) to cylinder
retract hydraulic hose at
malfunctioning hopper wing
hydraulic cylinder (WP 0260, Vol
2, Figure 3, Item 1).
3. Start BMPM engine (TM 5-3895-
385-10).
0102-4