ALH System-One, Руководство по эксплуатации

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February 11
th
, 2019 4
Preparing the Drill Head
1. Screw the drill head feed cap down until the grub screw(s) are exposed at the bottom of the
drill shaft.
2. Wipe the tapered hole in the shaft clean with a rag to ensure there is no dirt in it to prevent
the tap seating properly. Similarly wipe the tap shank.
3.
Cutting Cast Iron or Malleable Iron Pipe
: Select the correct tap and holesaw combination.
Where required, use only the supplied box wrench to attach the holesaw to the tap; a wrench
with more leverage might break the tap. Where possible install a PLCS rare earth magnet
(Part #46-B5010) in the holesaw to collect swarf and help retain the coupon.
Cutting Steel Pipe:
Select the correct tap and shell cutter combination. A 1” shell cutter
screws directly onto the threads of its corresponding sized NPT tap. A 1¼” ONLY is
attached to the tap using a special nut and wrench. Use ONLY the special nut and
wrench to attach the shell cutter to the tap; a wrench with more leverage could damage
the tap. All other sizes are attached using the supplied box wrench and tap half nut. If
possible install a PLCS rare earth magnet (Part #46-B5010) in the shell cutter to collect
metal chips and help retain the coupon.
4. After attaching the holesaw/shell cutter install the tap in the drill shaft tapered hole making
sure the two flats on the tap fit within the recess in the shaft.
5. Place a piece of wood over the end of the holesaw/shell cutter and give it a light rap with a
hammer to perfectly seat the tap in the tapered hole
(Photo 3).
(Photo 3) (Photo 4) (Photo 5)
6. Now tighten the grub screw(s) down onto the tap shank, using the T-Handle hex wrench
provided, to prevent the tap dropping out of the shaft once it has been unscrewed from the
newly tapped hole. The grub screw(s) should not be over-tightened
(Photo 4)
.
IMPORTANT – On Steel Pipe
it is vital that the shell cutter is kept cool during the cutting
operation. To accomplish this fill the saddle with a biodegradable coolant such as Kool-
Mist 77 (PLCS Part # 46-11365K61) prior to starting the cutting operation. We also
recommend coating the inner and outer surfaces of the cutter and tap threads with
TREFOLEX compound paste. TREFOLEX extends the cutters and taps work life while
producing a cleaner cut edge with less frictional force.
The use of cutting paste on
Cast Iron
pipe is optional.