Landoll Bendi B40i4, Maintenance Manual

Page: 54 / 142

3-6 F-581-R1
TROUBLESHOOTING AND CORRECTIVE MAINTENANCE
Cont’d Insufficient hydraulic pressure at the
pump .
• Check steering motor for seal
leaks, sticking or misadjustment -
repair or replace.
No hydraulic pressure.
Coupling or shaft sheared or
disengaged.
Oil intake line is restricted.
Fluid viscosity too heavy to pick up
prime.
• Disassemble the pump and check
the shaft and cartridge for damage.
• Check for restrictions in reservoir
ports.
• See “Change Hydraulic Oil Filter,”
on page 2-4, Planned Maintenance.
• Completely drain the system.
• Add new filtered oil of the proper
viscosity.
• See page 1-17 for recommended
lubricants.
• See “Change Hydraulic Oil Filter,”
on page 2-4, Planned Maintenance.
Leaking fluid.
Cracked or cut hoses, where
applicable.
Loose or faulty hydraulic
fittings.
Oil seals deteriorated.
• Replace the defective hose.
NEVER attempt to patch or splice a
hose.
• Tighten and/or replace. Be careful
not to strip the threads, rendering
the fitting defective.
• Disassemble the unit and replace
the oil seals.
Significant loss of speed under
load.
Lack of sufficient oil supply.
Excessive heat source.
High internal motor leakage.
Severely worn or damaged
internal splines.
• Check for faulty relief valve and
adjust or replace as required.
• Check for and repair worn pump.
• See page 1-17 for
recommended lubricants.
• Locate excessive heat source,
usually a restriction, in the system
and correct the condition.
Disassemble unit and replace worn
rotor set.
• Disassemble unit and replace
worn rotor set, drive link and
coupling shaft.
Problem Cause Suggested Repair