PB100E
Original instructions
June 2019
7
7) EXTENSION CABLE SELECTION
The machines are factory fitted with a 2 metre length of cable having three conductors 1.5mm²
LIVE, NEUTRAL and EARTH. If it becomes necessary to fit an extension cable from the power source, care
must be taken in using a cable of adequate capacity. Failure to do so will result in a loss of traction by the
magnet and a reduction of power from the motor.
Assuming a normal AC supply of the correct voltage, it is recommended that the following extension lengths
shall not be exceeded:
For 110v supply: 3.5 yards of 3 core x 1.5mm²
For230v supply: 26 yards of 3 core x 1.5mm²
ALWAYS DISCONNECT THE MACHINE FROM THE POWER SOURCE BEFORE CHANGING CUTTERS.
8) MOUNTING OF CUTTERS
•
The machine has been made to accept cutters having 19.05mm (3/4”) dia.
Weldon shanks.
The following procedure is to be used when mounting cutters:
•
Lay the machine on its side with feed handles uppermost, ensuring arbor is wound down to its lowest
point to enable access to socket screws.
•
Take appropriate pilot and place through the hole in cutter shank. Insert shank of cutter into bore of
arbor, ensuring alignment of two drive flats with socket screws.
•
Tighten both screws using hexagon key.
STAN OPERATION
9) REMEDIES FOR HOLE MAKING PROBLEMS
Problem
Cause
Remedy
1) Magnetic base
won’t hold
effectively
Material being cut may be too thin for efficient
holding.
Swarf or dirt under magnet.
Irregularity on magnet contact or work-piece.
Insufficient current going to magnet during drilling
cycles.
Attach an additional piece of metal under the
magnet, or mechanically clamp magnetic base to
work-piece.
Clean magnet.
Use extreme care; file any imperfections flush to
surface.
Confirm power supply and output from control unit,
check supply cable.
2) Cutter skips
out of centre-
punch mark at
initiation of cut
Magnetic base is not holding effectively.
Worn arbor bushing and/or ejector collar.
Too much feed pressure at start of cut.
Cutter is dull, worn, chipped or incorrectly
sharpened.
Poor centre-punch mark; weak pilot spring; pilot not
centred in centre-punch mark.
Worn or bent pilot, worn pilot hole.
See causes and remedies above.
New arbor bushing is needed.
Light pressure only is needed until a groove is cut.
The groove then serves as a stabilizer.
Replace or re-sharpen. Sharpening service is
available.
Improve centre-punch and/or replace worn parts
Replace part or parts
3) Excessive
drilling pressure
Incorrectly re-sharpened, worn or chipped cutter.
Re-sharpen or replace.
