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40 Troubleshooting
2. Crusher
1. Wear of fixed jaw
2. Wear of swing jaw
3. Wear of cheek plate
4. Wear of protector
5. Wear of movable tooth wedge
6. Wear of toggle seat
7. Wear of toggle plate
1. Check tooth plate wedge bolt spring case
2. Check tension spring
Check of crusher driving V-belt tension
3. Belt conveyor
Check carrier roller and return roller
Dirt or mud attached to, or foreign material caught in carrier
roller or return roller
Damage of head pulley and tail pulley
Check of conveyor belt tension
Check belt cleaner and scraper
4. Others
Machine installation condition (during work)
Machine exterior damage (by loading machine etc.) or modifica-
tion (*1)
*1: Frame deformation by hitting the hydraulic excavator bucket to the conveyor frame (that can cause the
belt meandering or abnormal rotation of head pulley)
Addition of liner plate to the feeder (that weakens the feeder feeding force)
BR380JG-1E0
Item
Item
Item
Judgment
value
Reverse or replace
Wear limit
*See Testing
and adjusting.
Standard value
*See Testing
and adjusting.
Judgment
value
Must rotate
easily
Must not exist
Must not exist
Standard value
*See Testing
and adjusting
Must work
Judgment value
Must be on a flat firm surface
Harmful damage must not exist
SEN02089-01
Action
Replace
Retighten
Adjust
Action
Adjust or replace
Clean
Replace
Adjust
Adjust or replace
5
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Table of Contents
Troubleshooting
