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MAINTENANCE
SERVICE PROCEDURE
REVERSE AND REPLACE THE END BITS AND CUTTING EDGES
WARNING
It is dangerous if the work equipment moves by mistake when the cutting edges and end bits are being reversed or replaced.
Set the work equipment in a stable condition, then stop the engine and lock the blade control lever securely with the work
equipment lock lever.
Reverse or replace the end bits and cutting edges before it is worn out to the blade end.
1. Raise the blade to a proper height, position a block under the frame to prevent the blade from falling.
2.
Operate the work equipment lock lever to the LOCK position.
3.
Measure the wear of the end bit and cutting edge in accordance with the wear standards given below.
Wear standards
(Sigmadozer)
[Unit: mm (in)]
Item Judgement standard
No. Measurement position
Standard
dimension
Permissible
limit
1
Height of outside of
end bit
300 (11.8") 235 (9.25")
2 Width of end bit 640 (25.2") 560 (22.0")
3
Height of inside of end
bit
330 (12.9") 235 (9.25")
4
Height of cutting edge
(from center of bolt
mounting hole to end
face)
165 (6.5")
105 (4.1")
5115 (4.5")
REMARK
The tip (a) of mount plate (b) may wear away when the end bit and
cutting edges are replaced and reversed. This wearing shape does
not effect the blade life.
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