Terex RT700 - Motor Turns Wrong Direction Troubleshooting; Erratic Motor Operation Troubleshooting; Leak at Shaft Troubleshooting; Leak Between Housing and Wear Plate Troubleshooting

TROUBLESHOOTING
MOTOR TURNS IN WRONG DIRECTION
CAUSE REMEDY
Hose connections wrong .......................................................................Reverse connections.
Wrong timing ........................................................................................Re-time motor.
ERRATIC MOTOR OPERATION
CAUSE REMEDY
Relief valve pressure set too low...........................................................Adjust relief valve setting.
Low oil level in reservoir permitting air
to enter system.......................................................................................Fill reservoir to proper level.
Air being “sucked in” on inlet side of pump.........................................Tighten fitting(s) on pump inlet side.
LEAK AT SHAFT
CAUSE REMEDY
Worn or cut shaft seal............................................................................Replace shaft seal.
LEAK BETWEEN HOUSING AND WEAR PLATE OR
BETWEEN WEAR PLATE AND GEROLER ASSEMBLY
CAUSE REMEDY
Motor housing bolts loose.....................................................................Clean mating surfaces and tighten nuts to appropri-
ate value.
Pinched “O” ring seal............................................................................Replace.
LEAK AT OIL PORTS
CAUSE REMEDY
Damaged seal or “O” ring.....................................................................Replace “O” ring or seal.
RT700 Series Page 5 - 27 Issued: August 2003