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V1.0
MAGNETIC DRILL
8740144
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27
PROBLEM(S) POSSIBLE CAUSE(S)
SUGGESTED SOLUTION(S)
Cutter skips
out of centre-
punch mark
at initiation of
cut -
Continued
5. Poor centre-punch
mark, weak pilot
spring or pilot not
centered in centre-
punch mark.
6. Worn or bent pilot,
worn pilot hole.
7. Loose bolts on motor
bushing, support
bracket, main casting
or loose gib adjusting
set screws.
5. Improve centre-punch
and/or replace worn
punch.
6. Replace part or parts.
7. Inspect and adjust where
necessary.
Excessive
drilling
pressure
required
1. Cutter/drill bit worn.
2. Swarf covering
workpiece.
3. Gibs are out of
alignment or need
lubrication.
4. Swarf jamming cutter.
1. Re-sharpen or replace.
2. Clean swarf from
workpiece before cutting.
3. See Care & Maintenance -
Slide adjustment.
4. Clear cutter of swarf
after drilling each time.
Excessive
cutter wear
1. Cutting bit not
sharpened correctly.
2. Inconsistent
downward cutting
pressure.
1. Replace cutting bit.
Tooth geometry is ruined.
2. Apply steady pressure
when cutting.