TM 5-3895-385-23-1
FIELD MAINTENANCE
BITUMINOUS MATERIAL PAVING MACHINE (BMPM)
MAIN HYDRAULIC MANIFOLD MALFUNCTION
INITIAL SETUP:
Test Equipment
References -- Continued
Hydraulic test kit (WP 0440, Vol 3, Item 59)
WP 0309, Vol 2
Personnel Required
WP 0442, Vol 3
91L
WP 0449, Vol 3
Assistant
Equipment Conditions
References
Engine off (TM 5-3895-385-10)
Hydraulic oil cool (TM 5-3895-385-10)
WP 0291, Vol 2
TROUBLESHOOTING PROCEDURES
NOTE
The maintainer should only be using this troubleshooting Work Package (WP) if directed to do so
from another troubleshooting WP. The procedures below assume it has been determined that
there is a loss of hydraulic pressure from the main hydraulic manifold to a hydraulic cylinder or
motor.
Table 1. Main Hydraulic Manifold Malfunction Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. 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.
2. Loss of hydraulic pressure.
1. Check hydraulic hoses from load
1. If leaks or damage is found,
sense hydraulic pump to main
replace damaged hydraulic hose
hydraulic manifold for leaks or
(WP 0291, Vol 2).
pinches (WP 0291, Vol 2).
2. If no leaks or damage is found,
proceed to next test.