SERVICE PROCEDURE MAINTENANCE
4-28
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 safety 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 and apply a block to the frame so as to prevent fall of the blade.
2. Operate the safety 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
Unit: mm (in)
The symbols in the work equipment column have the following meaning.
A: Power angle, powertilt dozer (D61EX)
B: Power angle, powertilt dozer (D61PX)
C: Powertilt dozer (D61PX)
D: Semi-U blade (D61EX)
Item Judgement standard
No.
Measurement
point
Work
equipment
Standard
dimension
Repair
limit
1
Height of out-
side of end bit
A 237 204
B 237 204
C 237 204
D 315 254
2
Width of end bit A 325 300
B 325 300
C 325 300
D 540 515
3
Height of inside
of end bit
A 204 187
B 204 187
C 204 187
D 254 237
4
Height of cutting
edge (from cen-
ter of bolt mount-
ing hole to end
face)
A10285
B10285
C10285
D10285
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