Troubles And Corrective Actions - Komatsu Galeo BR380JG-1 Operation & Maintenance Manual

ATTACHMENTS, OPTIONS

TROUBLES AND CORRECTIVE ACTIONS

Problem
Conveyor belt
Not operable
Snaky movement
Abnormal wear on backside
Main causes
Electric circuit fault:
Electric failure in section from
switch to solenoid valve
Relief valve fault
Defective coupler connection
Emergency stop switch is ON
Misalignment of rollers and
improper mounting
Debris transport direction
Debris stuck to rollers
(Likewise wire or string winding
about rollers)
Belt elongation
Belt bending, or not installed
properly in endless processing
Frame twisting and bending
Frame not poised evenly
(Belt is deflected to lower side)
Belt too rigid
(Wrong belt chosen)
Slip on motor pulley (or driving
pulley) surface
Debris or foreign object stuck in
between belt and pulley
(Foreign objects stuck on pulley
surface)
Faulty rotation of rollers
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HYDRAULIC SECONDARY CONVEYOR
Remedy
Correct wiring or relay
connections
Measure hydraulic oil pressure
Fit correctly in connecting
portion
Turn emergency stop switch
OFF
Adjust roller mounting angle
Load debris evenly in the middle
of the belt, after making sure
that
the machine is kept level on the
ground
Clean roller periphery
Adjust belt tension with take-up
Retry endless processing, or
replace belt with new one
Correct twisting and eccentricity
at time of assembly or machine
installation
Correct twisting and
eccentricity at time of assembly
or machine installation
a. Run in belt without load
b. replace with softer (proper)
belt
Correct belt elongation with
take-up
a. Remove foreign objects
(Remove sticking)
b. Improve loading conditions at
loading part
Replace faulty rollers
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