TM 5-3895-373-34
Table 2-5. Screed Lift System Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
SCREED FAILS TO LOWER.
Step 1.
Ensure screed travel lock valve is fully open.
If screed travel lock valve is closed, open screed travel lock valve.
If screed travel lock valve is open, go to step 2.
Step 2.
Check if screed raises normally.
If screed fails to raise normally, refer to MALFUNCTION 1. SCREED FAILS TO LIFT.
If screed raises normally, replace or repair valve S13 per paragraph 2.44 or replace stack valve
per paragraph 2.55.
3.
SCREED FAILS TO MAINTAIN POSITION.
Check position of screed travel lock valve.
If screed travel lock valve is open, replace stack valve’s check valve for electrical coil S12 per
paragraph 2.44 or replace stack valve per paragraph 2.55.
If screed travel lock valve is closed, replace valve per paragraph 2.57.
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