TB 9-2320-279-13&P-4
0032
CONDITION/INDICATION
Is 2,850 psi (19 650 kPa) measured at heavy-duty winch motor?
DECISION
No - Replace heavy-duty winch control valve (relief valve faulty). (WP 0072)Test 13 - Does heavy-duty winch
operate in both directions?
Yes - Test 11 - Is more than 270 psi (1 861 kPa) measured on winch hydraulic brake release hose?
TEST 11 - Is more than 270 psi (1 861 kPa) measured on winch hydraulic brake release hose?
WARNING
Hydraulic system pressure can exceed 3,000 psi (20 684 kPa). A high-pressure hydraulic
system can pierce a body. Ensure engine if OFF prior to disconnecting hydraulic hoses. Failure
to comply may result in injury or death to personnel.
Never disconnect any high-pressure hydraulic hose, line or component without first dropping
pressure to zero. Failure to comply may result in injury or death to personnel.
Wear proper eye protection when working with or performing checks on high-pressure hydraulic
systems. Failure to comply may result in injury or death to personnel.
1. Place suitable drain pan under heavy-duty winch assembly prior to removing hose.
2. Disconnect winch brake release hose at winch brake. Cap fitting on winch brake assembly. Refer to schematics.
3. Connect 0 to 6000 psi (0 to 41 370 kPa) pressure gauge to winch brake release hose.
0032-16