Table 3-5. Troubleshooting (Cont)
Test or Inspection
BACKHOE (SEE) (CONT)
Use threaded plug in tube. Failure to do so will result in spilled hydraulic oil.
c. Disconnect tube (1) from rod end of dipper cylinder (2) and loosen
clamp (3) holding tube (1). Move tube away from fitting (4) and install
d. Start engine. Set engine RPM switch to HI.
During step e, there may be a small amount of hydraulic oil leaking, either drops or a
small stream the diameter of a pencil lead. This is normal. Use drip pan to catch oil.
e. Pull dipper control lever inward and check for leaks from fitting (4).
If there is excessive leakage from fitting, replace dipper
cylinder (page 4-670).
If there is not excessive leakage from fitting, notify direct
127. SWING CYLINDER DRIFTS.
Steps 1 and 2 are the same for both swing cylinders.
Step 1. Check for loose and damaged hydraulic lines.
If hydraulic lines are loose or damaged, tighten loose
connections or replace hydraulic lines (page 4-606).
If hydraulic lines are not loose or damaged, go to step 2.