TAPMATE
™
XL 424 OPERATING MANUAL
26
DISASSEMBLY AND REMOVAL OF THE COUPON
For 4"–12" Taps
1. With the Machine resting on the Work Station, remove the Lifting Chains.
2. Secure the Lead Tube into the Work Station with the Front Brace and the Wing Nuts provided.
This will prevent the Machine from rotating in the next step and also when the Adapter Bell is
unscrewed from it.
3. Extend the Shaft until you have access to the Jam Nut located on the Small Shaft Head behind
the Shell Cutter. This is done by rotating the Brake Tube Handles in a clockwise direction.
4. Loosen the two Jam Nut Set Screws with a 3/16" Allen Wrench. The two Halves of the Jam Nut
will separate, allowing the Jam Nut to thread up the Shaft and away from the Shell Cutter.
5. Unthread the Shell Cutter from the Small Shaft Head and then pull it down the shaft of the Pilot
to expose the wrench flats.
6. Use a Wrench on the Shaft Nose (or PVC Pilot) and a larger one on the Flats of the Small Shaft
Head to break loose the Shaft Nose. Then unthread it completely off.
7. The Shaft Nose (or PVC Pilot) can then be pulled out of the Coupon and the Coupon can then
be driven out of the Shell Cutter. Holes are provided in the Back Plate of the Shell Cutter to
assist in the Coupons removal.
8. Check the Shell Cutter for wear and broken or chipped Teeth. Also check the Retention Pin
system on the Shaft Nose or PVC pilot to see that it’s functioning properly. If the Shaft Nose was
used, check the Spade Bit for wear, chips and that it is not loose. Check the PVC Pilot Cutter
teeth for wear if used.
9. Draw the Shaft back into the Machine by rotating the Brake Tube Handles in a counter‑clockwise
direction until you reached “zero” again. Reinsert the Brake Tube Bolt into the Brake Tube Collar.
10. Secure the back of the Machine with the Rear Brace and Wing Nuts provided into the Work
Station.
11. Remove the Adapter Bell by unscrewing the Set Screw and then unthreading the Adapter Bell
from the Small Hub.
12. Clean the Machine as outlined in the section “Care and Maintenance of the Machine”.
For 14"–24" Taps
1. With the Machine resting on the Work Station, remove the Lifting Chains.
2. Extend the Shaft until you have access to the back of the Shell Cutter and the Set Screws in the
Large Shaft Head. This is done by rotating the Brake Tube Handles in a clockwise direction.
3. Loosen the two Set Screws in the Large Shaft Head with a 1/8" Allen Wrench.
4. Use a Wrench on the Flats of the TM‑XL Shaft Nose (or TM‑XL PVC Pilot) and a larger one on
the Flats of the Large Shaft Head to break loose the Shaft Nose. Then unthread it completely
and pull it out of the Coupon and Cutter.
5. Unthread the Bolts on the back of the Shell Cutter. Note– a strap may be required to support
the combined weight of the Shell Cutter and Coupon, which can weigh up to 175 lbs. depend‑
ing on tap size and pipe material.
6. The Coupon can then be driven out of the Shell Cutter. Holes are provided in the Back Plate of
the Shell Cutter to assist in the Coupon's removal.
7. Check the Shell Cutter for wear and broken or chipped Teeth. Also check the Retention Pin
system on the Shaft Nose or PVC Pilot to see that it’s functioning properly. If the Shaft Nose was
used, check the Spade Bit for wear, chips, and that it is not loose. Check the PVC Pilot Cutter
teeth for wear if used.
8. Loosen the two Set Screws in the Shaft with a 1/8" Allen Wrench. Using a 3/8" Allen Wrench
unscrew the Large Shaft Head from the Shaft.
9. Draw the Shaft back into the Machine by rotating the Brake Tube Handles in a counter‑clockwise
direction until you reached “zero” again. Reinsert the Brake Tube Bolt into the Brake Tube Collar.
10. Remove the Adapter Bell by unscrewing the six Nuts around the Large Hub and lifting it away
from the Machine.
11. Secure the Machine with the Front and Rear Braces and Wing Nuts provided into the Work Station.
12. Clean the Machine as outlined in the section “Care and Maintenance of the Machine”.
