Leach 2R-III, Maintenance Manual

Page: 87 / 168

Troubleshooting 77
Hydraulic pump is defective and will not
deliver full pressure Replace pump. See Hydraulic Pump on page 152.
Operating cylinder piston seal is leaking Perform test for leaking cylinder. See Chapter 8
Service and Repair .
Operating valve pressures are too low Perform pressure check as described in Checking
Pressures on page 61.
Air in hydraulic lines Cycle packer 6 or 7 times to bleed air out of system.
LOUD SQUEALING NOISE WHEN MANUALLY RETRACTING TELESCOPIC CYLINDER
Possible cause Remedy
Excessive fluid flow being forced
through the main relief in the Front
Control Valve
Š
Release speed-up button.
Š
Only partially pull (feather) the Front Control
Valve control handle.
LOAD WILL NOT PUSH OUT
Possible cause Remedy
Less than full pressure in telescopic
cylinder
Š
Perform test for leaking cylinder and repair.
Š
Adjust main relief pressure (see Checking
Pressures on page 61).
The operator is trying to push the load
out against a pile of refuse, dirt or bank
of a hill Move the unit forward to finish unloading.
PUSHOUT PANEL SLIDES FORWARD TOO FAST WHILE PACKING REFUSE
Possible cause Remedy
Cylinder bypassing Perform test for leaking cylinder and repair.
Resistance setting too low Adjust resistance cartridge (see
Checking Resistance
Cartridge Pressure on page 65).
PACKER/CARRIER PANELS DO NOT DELIVER FULL FORCE TO PACK LOAD INTO BODY
Possible cause Remedy