Landoll 600C Series, Operator'S Manual

Page: 87 / 88

5-6 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.
5-7 REMOTE CONTROL
SYMPTOM PROBLEM: REMEDY
DOES NOT FUNCTION
No power: Check center pin of 7-way connector with voltmeter
(+12VDC). Correct wiring per Tractor Repair manual.
Check remote plugged in: Self-explanatory.
No current to solenoid: Check wire harness connection to
tractor.
No air supply to solenoid: Check hydraulics connections.
5-8 DOCK LEVELER HYDRAULICS
For maintenance procedures, see Section 4-13.
SYMPTOM PROBLEM: REMEDY
FAILS TO LIFT SEMITRAILER 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.
5-9