1. Connect tube fitting to control valve return port.
2. Start engine and let idle (see your -10).
3. Disconnect tube fitting (1) from pressure relief
valve (2).
4. Does pressure relief valve leak hydraulic fluid?
1. Replace pressure relief valve (page 28-60).
2. Verify no faults found.
TM 9-2350-261-20-1
1. Replace unloader valve
(page 28-60).
2. Verify no faults found.
I
3-191