TM 5-3895-385-23-1
0108
Table 1. Charge Pump Malfunction Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Damaged hydraulic hoses.
Check hydraulic hoses from the
1. If leaks or damage is found,
hydraulic tank to the charge filter
replace damaged hydraulic
and hydraulic tank for leaks or
hose (WP 0290, Vol 2).
pinches (WP 0290, Vol 2).
2. If no leak or damage is found,
proceed to next malfunction.
2. Shut off valve closed.
Check shut off valves on hydraulic
1. If shut off valves are closed,
tank for open condition (WP 0449,
open hydraulic shut off valves.
Vol 3, Figure 6).
2. If shut off valves are open,
proceed to next malfunction.
3. Pump not functioning.
1. Attach hydraulic pressure tester
(WP 0442, Vol 2) to hydraulic
pressure test port on the charge
filter (WP 0449, Vol 3, Figure 2).
2. Start Bituminous Material Paving
Machine (BMPM) engine (TM 5-
3895-385-10).
3. Check hydraulic pressure at
1. If hydraulic pressure reads
hydraulic pressure test port on
between a minimum of 200
the charge filter (WP 0449, Vol
pounds per square inch (psi)
3, Figure 2).
(1379 kiloPascals (kPa)), turn
keyless engine switch to the
OFF position (TM 5-3895-385-
10), and replace hydraulic oil
charge filter (WP 0362, Vol 2).
2. If hydraulic pressure reads
below 200 psi (1379 kPa), turn
keyless engine switch to the
OFF position (TM 5-3895-385-
10), and replace the charge
pump (WP 0322, Vol 2).
END OF WORK PACKAGE
