Page 31 - QR PENTRUDER 3P8
P. 31
Operators Manual - High Frequency driven Pentruder 3P8 Wire Saw
9. Run the wire through any pilot holes that may be required. If the object to be cut
requires one or more pilot holes, then, naturally, the wire must be open and crimped
once the wire has been run through the pilot holes. Make sure the wire is run in the
correct direction. A new wire usually has direction arrows marked in the rubber and
after some use the beads are more worn in the front than the rear. If a used wire is
mounted the wrong direction the start up is much harder.
10. Before joining the wire ends, the wire should be twisted about 0.5 – 1 turn per meter of
wire.
11. Make a short loop at one end of the wire, clamp the other end or stand on it, hold the
short loop in your hands and turn the wire counter clockwise the correct amount of
turns.
12. Crimp the sleeve using the correct size of crimping dies.
13. Crimp the sleeve over the wire and leave about 1 – 2 mm un-crimped sleeve at each
end of the sleeve. In any case the end of the wire must be “inside” the crimp. If the
sleeve is crimped all the way to the end, the inside radius in the sleeve will be crushed
and the wire will instead rub against a sharp edge and fail prematurely.
14. Crimp the steel sleeve and you are ready to fit the wire over the pulley and wheels on
the 3P8.
15. The design of the 3P8 allows the wire to be fitted around the drive pulley and all other
wheels even with a closed wire.
16. If you plane to use several lengths of wire for the same cut, you must first use the wire
with the least wear. The wire diameter will be reduced over time due to wear, so you
must always start with the wire that has the biggest diameter and then progressively
use the thinner wires.
17. Never join wires of different diameter.
18. Always keep a few extra wire joining sleeves in your pocket. Then the wire will not be
so prone to break. (Tip from company Bluegrass, wire sawing experts in the US.)
Pentruder® - Stronger than ever! Tractive AB 17 March 2009 Page 29
Applying Standards That Are Years Ahead Of the Competition.
