Komatsu Galeo BR380JG-1E0 Shop Manual page 355

SEN02305-01
Check of wear on major wearing parts
Jaw plate
k
When checking the wear, stop the crusher, then stop the engine and check the wear.
k
If the machine is used continuously with the crusher chamber excessively charged, premature
partial wear will develop on the tips of jaw plates.
k
If a work is continued with the partially worn jaw plates, rocks may not be discharged smoothly,
eventually resulting in damages on the jaw plates on account of the worsened partial wear.
Replace the partially worn jaw plates with new ones.
k
If jaw plates are used beyond their wear limit, a serious damage will be inflicted on the jaw
crusher main body itself.
(1): Hypothetical wear range (hatched portion)
(2): Tooth plate
(3): Frame
Height from mount-
ing face of tooth
plate to groove in
tooth plate
a Even if dimension (A) and (B) have not
reached the wear limit, if position (C) (100 –
300 mm from the bottom end) is the same as
the bottom end portion and the protrusion of
the tooth has been worn and the tooth has
become flat, turn the tooth plate or replace it.
14
New Wear limit
part height
(mm) (mm)
Fixed
44 34
jaw (A)
Swing
75 65
jaw (B)
30 Testing and adjusting
BR380JG-1E0