33
437-PM MAGNETIC COLLET
INSTRUCTIONS FOR REPLACEMENT OF WORN OUT COLLET PARTS
The 437-PM-RK Repair Kit should be used to rebuild the 437-PM Magnetic Collet. It
includes the following: 437-PM-1 Collet Insert, 437-PM-2 Cap Screw, 437-PM-7
Insulator Disc, 437-PM-4 Screw Sleeve Insulator, as well as the proper size Allen
Wrench.
1. Remove the collet from the gun shaft.
2. Loosen and remove the 437-PM-2 Cap Screw.
IMPORTANT:
Do not try to loosen the cap screw while the collet is still in the
gun shaft, as this could damage internal parts of the weld gun.
3. Remove the worn Collet Insert, Part No. 437-PM-1. Note that when the cap screw
is removed, the 437-PM-3 Collet Stem is now detached from the magnet.
4. Place the new parts of the Repair Kit into the magnet.
5. Screw the 437-PM-3 Collet Stem onto the cap screw. A new collet stem should be
used
only if needed.
(Note that this part is not included in the repair kit, and must
be purchased separately). While holding the stem firmly, insert the Allen Wrench
into the cap screw and tighten securely.
IMPORTANT:
Make sure the cap screw is tight, otherwise arcing and burning
may take place. This will result in the parts being damaged unnecessarily. This
screw should be checked periodically for tightness. Also, be sure all insulating
discs and sleeves are in their proper position, as shown in the sketch below. If not
the holding power of the magnet will be affected.
6. Replace the collect in the gun shaft;
BE SURE
to check the collet holding set
screws for tightness frequently. They must be kept tight to prevent arcing inside
the gun shaft.
Summary of Contents for PA-15
Page 17: ...17 ILLUSTRATION 1 Not Shown 2615 M ADAPTER ASSEMBLY INCLUDES ITEMS 25 13 14 24...
Page 36: ...36 WIRING DIAGRAM PA 15...
Page 38: ...38 Illustration No 2...
Page 39: ...39 Illustration No 3...
Page 40: ...40 Illustration No 4...
