Landoll 345F, Operator'S Manual

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5-8 F-944-1017 Edition
TROUBLESHOOTING
Dock Level Hydraulics
Hydraulic Power Supply
Engine Package
To troubleshoot the engine in the hydraulic engine
package, please refer to the owners manual that was
provided with the engine package.
CYLINDERS MOVE WITH CONTROL
VALVE IN NEUTRAL POSITION Leaking cylinder seals or fittings Replace worn seals or fittings
Control valve not centering when
released Check linkage for binding and repair
Valve damaged Repair or replace
CONTROL VALVE LEAKS Seals damaged worn Replace
CYLINDER LEAKS Seals worn or damaged Replace
Rod damaged Replace
Barrel damaged Replace
CYLINDERS DO NOT FUNCTION OR
CREEP WITH PTO DISENGAGED Leaking fittings or cylinder seals Tighten loose fittings. Replace worn
seals or fittings
Piloted check valve or o-ring leak Replace defective component
PROBLEM PROBABLE CAUSE SOLUTION
PROBLEM PROBABLE CAUSE SOLUTION
FAILS TO LIFT TRAILER Insufficient hydraulic supply pressure Adjust relief valve for 2400 - 2500 psi
Worn hydraulic pump Service or replace
Insufficient volume to dock level circuit Adjust flow divider to provide 2.5 to 3.1
GPM
Too heavy a load Reduce load on cylinders
LOWERS UNEVENLY OR
ERRATICALLY Insufficient volume to dock level circuit Clean system and new oil and filter
Dirty oil in check valves Use same procedure as above