Landoll Bendi B40i4, Maintenance Manual

Page: 51 / 142

TROUBLESHOOTING AND CORRECTIVE MAINTENANCE
3-3
Mast does not lift load.
NOTE
All mast warranty is managed by
LIft-Tek. Please call 1-888-lifttek.
Attempting to lift a load in excess of
the truck’s capacity.
Low hydraulic oil.
Faulty hydraulic control valve.
Faulty pump.
Hydraulic cylinders leaking or
binding.
Mechanical damage of the mast.
Insufficient system pressure.
• NEVER attempt to lift a load
heavier than the specified rating of
the truck.
• Also see “Traveling and Load
Handling,” in the Bendi IC
Operator's Manual F-500 for
additional information.
• See “Understanding Stability,” in
the Bendi IC Operator's Manual
F-500.
• Low levels can cause the pump to
“cavitate” and not permit full lift of
the mast. See “Check Lift
Operation,” in Chapter 2- Planned
Maintenance, page 2-8.
• Check reservoir oil level.
Replenish as needed. See “Check
Hydraulic Oil Level,” in the Bendi IC
Planned Maintenance, page 2-4.
• Bent or damaged spool, worn
internal seals - repair or replace as
needed.
• The hydraulic pump sections may
be damaged - replace the pump.
• Determine which cylinder is
leaking or binding - rebuild or
replace.
• Seal kits are available for most
cylinders - see Mast Parts List
F-387 or F-389.
• Check mast for damage and signs
of misadjustment. See “Check Lift
Operation,” in Chapter 2- Planned
Maintenance, page 2-8.
• Check hydraulic pressure of
system relief valves. For an
overview of the system, see
“Hydraulic System,” in the Bendi IC
Operator's Manual F-500.
• Try re-adjusting the pressure relief
valves. Maximum system pressure
must not exceed 2,800 psi.
• See “To Check and/or Adjust
Pressure,” on
page 3-38.
• Check valves for seal leaks,
sticking or misadjustment.
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Problem Cause Suggested Repair