Landoll EHP, Руководство оператора

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5-4 F-1153-2308
TROUBLESHOOTING GUIDE
TABLE OF CONTENTS
Hydraulic System Problems
IMPORTANT
Landoll Company, LLC. Is not responsible for any equipment that is not properly maintained. Troubleshooting,
Repairing and Servicing must be performed by a trained technician. It is highly recommended to contact the
Landoll Trailer Service Department at
Landoll.com or phone 800-446-5175 / 888-522-3634.
PROBLEM PROBABLE CAUSE SOLUTION
System inoperative Not enough oil in system Fill, check for leaks.
Wrong oil in system Change oil, see specifications.
See
Figure 2-14 on Page 2-12
Filter dirty or clogged Drain oil and replace filter.
See Figure
2-14 on Page 2-12
Hydraulic lines dirty or collapsed Clean or replace as necessary.
Air leaks in pump suction line Repair or replace as necessary.
Worn or dirty pump Clean, repair or replace. Check for
contaminated oil. Drain and flush.
Badly worn components Examine for internal leakage. Replace
faulty components. Check for cause of
wear.
Leakage Check all components, and relief valve
for proper settings.
Excessive load Check unit specifications for load limit .
Slipping or broken pump drive Repair or replace couplings. Check for
alignment
Valve compensator stuck Clean, repair, or replace.
System operates erratically Air in the system Check suction side of system for leaks.
Repair leaks.
Cold oil Allow ample warm-up time. Use proper
weight oil for operating temperature.
Dirty or damaged components Clean or repair as needed.
Restriction in filters or lines Clean and/or replace filter or lines.
Not enough oil in system Fill and check for leaks.
Motor RPM’s fluctuating during hydraulic
operations. Contact Landoll Service Dept.
System operates slowly Oil viscosity too high, or “cold oil” Allow oil to warm up before operating.
Low oil level Check reservoir and add oil as
necessary.
Air in system Check suction side for leaks. Repair
leaks.
Badly worn pump, valves, cylinders, etc. Repair or replace faulty component(s) as
necessary.
Restrictions in lines or filter Clean and/or replace filter or lines.
Improper adjustments Check orifices, relief valves, etc. Adjust
as necessary.
Oil leaks Tighten fittings. Replace seals, gaskets
and damaged lines.
Motor RPM’s not increasing during
hydraulic operations. Contact Landoll Service Dept.