TM 9-4940-568-34
2-56
Table 2-7. Crane Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. CRANE DOES NOT SWING CLOCKWISE (Continued).
Test 3.
Disconnect line and fitting from brake release port on cross relief valve. Install test fitting
and a 0-5,000 psi (0-34,475 kPa) pressure gage. Start FRS. Have assistant operate
SWING control lever to attempt to swing clockwise. Check for a minimum of 1,300 psi
(8,963 kPa).
If pressure is not within specifications, repair or replace cross relief valve. Refer to
paragraph 3-32 or 6-12.
CROSS
RELIEF
VALVE
FITTING
LINE
SWING
CONTROL
LEVER
SWING DRIVE
ORBIT MOTOR
