INSTRUCTIONS for
PT-17A & PT-17AM
PLASMA ARC CUTTING TORCHES
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe
practices for arc welding equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc Welding, Cutting,
and Gouging", Form 52-529. Do NOT permit untrained persons to install, operate, or maintain this equipment. Do NOT attempt
to install or operate this equipment until you have read and fully understand these instructions. If you do not fully understand
these instructions, contact your supplier for further information.
WARNING
!
Plasma arc cutting process employs high voltages.
High voltage can kill. Therefore, contact with live
parts of the torch and machine must be avoided.
Also, the improper use of any of the gases employed
can present a safety hazard. Before beginning operation with the PT-17A or 17AM torch, refer to the
safety precautions in the appropriate booklet of the
following Plasma Arc Cutting Packages:
Form 14-471 - PCM-100
14-474 - PCM-150
I. INTRODUCTION
The PT-17A and PT-17AM torches offer performance,
economy and safety for all plasma cutting needs up to
1-in. on most common metals. The PT-17A, within its
current rating, is usable on all of ESAB’s consoles listed
above. (Adaptor may be necessary. See Section III-A).
F14-441-D
CAUTION
!
F14-441-D
December, 2006
II. ACCESSORIES
1. PT-17A/17AM S pare Part s Kit s,
P/N 20062 - 50 amps
P/N 20063 - 70 amps
P/N 20064 -100 amps (PCM-100/150)
Recommended for maintaining PT-17A or PT-17AM
torch with minimum downtime. The kits contain spare
parts listed in Table 1 in a convenient tool box. P/N
20064 kit is supplied with each PCM-100 manual air
package.
2. Drag Type Shield Guard, P/N 19989 - Protects the
heat shield and permits the operator to drag a manual
torch on the plate while cutting. Thus maintaining a
fixed stand-off (tip-to-work distance) throughout the
cut resulting in a uniform appearance of the cut edge.
Two drag type guards are supplied with each spare
parts kit.
3. Standard Shield Guard, P/N 19990 (non drag type)
- protects the shield against accidental breakage on
both manual and mechanized torches. One standard
guard is supplied with each spare parts kit.
4. Mechanized T orch (PT-17AM) Mounting and T ravel
Carriage - Refer to the appropriate booklet supplied
with your PCM package.
1-1/4"
2-7/8"
10"
Shipping Weight. 9lbs. (25-ft.) / 15lbs. (50-ft.)
PT-17A
1-1/4"
Fig. 1- Dimensional Data - PT-17A & PT-17AM Torches
Be sure this information reaches the operator.
You can get extra copies through your supplier.
1
8-3/16" MIN.
14-3/4" MAX.
13"
2"
17-1/4"
Shipping Weight. 10lbs. (25-ft.) / 16lbs. (50-ft.)
PT-17AM
ESAB
1-3/8"
ESAB Welding &
Cutting Products
5/8"
STUD
Table 1 - Contents of PT-17A/17AM Spare Parts Kit
Quantity
50amp 70amp 100amp
Kit Kit Kit
Description P/N P/N 20062 P/N 20063 20064
Heat Shield, H-D 20747 3 3 3
Shield Guard, Drag 19989 2 2 2
Type
Shield Guard, Std. Type 19990 1 1 1
CuttingTip, .046 19915 5 5 —
Cutting Tip, .052 19916 — 5 5
Cutting Tip, .057 19917 — 5 5
Cutting Tip, .067 20056 — — 5
Electrode 19918 5 5 5
Electrode Adaptor 20053 1 1 1
BaffleTube 19114 1 1 1
Shroud Cap 19498 1 1 1
Shroud 19499 1 1 1
Wrench 19129 1 1 1
Pilot Arc Adaptor 19497 1 1 1
70 Amp Gouging Tip 20426 — 1 1
100 Amp Gouging Tip 20427 — — 1
1. Push guard over heat shield and
onto the shroud.
The step inside the guard
should stop against bottom of
shroud. When using the dragtype guard, a 1/8" tip-to-work
standoff it provided.
The guard can be rotated to
any desired position and need
not be removed from the
shroud when changing
consumables.
2. Periodically remove spatter
and splashed metal from tip
and edge of heat shield that
could cause arcing between
the guard and work.
Fig. 3 - Attaching Shield Guard
PT-17
SHROUD
HEAT
SHIELD
GUARD
(Drag Type illustrated)
5. Plasma Gas Flow Measuring Kit, P/N 19765 - Used
for checking gas flows through torch. Improper flows
can cause short life of consumables, poor starting,
bad cuts, or overheated torches.
6. Spatter Shield, P/N 20748 - Protects torch from spat-
ter produced by initial cut starts and piercing operations. Also, it reflects radiant heat away from the neck
of the torch during cutting operations which will prolong the life of the torch.
7. “Plasmit” Torch Head Protector, P/N 20803 (75°
Hd.); P/N 20804 (Mech.) - Protects torch head from
radiant heat during cutting operations.
III. INST ALLA TION
WARNING
!
Make sure power switch on console is in OFF position and primary input power is deenergized.
A. CONNECTING TORCH TO PCM CONSOLE
The torch service lines should be connected to the output connections of the appropriate PCM console as follows (refer to interconnecting diagram in the PCM booklet):
1. Power cable (male nut) to “NEG” fitting. (If using old
PCM-31, “C” to “B” size adaptor, P/N 19500, is required).
SHROUD CAP - 19498
2. Pilot arc cable to “POS” connection. (Pilot arc adaptor, P/N 19497 - supplied with each spare parts kit, is
required for connecting cable to PCM-150).
3. Torch switch plug is connected to the 2-prong receptacle.
B. INST ALLING T ORCH FRONT END PARTS
1. Referring to Fig. 2 assemble desired electrode to the
torch head, and then tighten it with the wrench (P/N
19129) supplied with torch or spare parts kit.
2. Assemble cutting tip to torch head finger tight.
NOTE: Always check the threads on the electrodes and
tips for dirt or other damage before assembling
to torch.
3. Assemble heat shield and shroud and then secure
them in place by assembling and hand tightening the
shroud cap.
4. If shield guard is to be used, attach to torch as illustrated in Fig. 3.
CAUTION: Make sure all front end parts are properly
assembled before operating the torch. If one
or more parts are missing, the torch will be
damaged beyond repair.
IV. OPERATION
The torch is now ready for cutting operations. Refer to
the appropriate booklet for control adjustments of your
PCM console.
WARNING
!
HEAT SHIELD
20747
SHROUD
19499
WARNING: Do not touch or remove parts unless
switch on console is in OFF position and primary
input power is deenergized.
TIP, CUTTING
19915 - .046
19916 - .052
19917 - .057
20056 - .067
Fig. 2 - Front End Assembly
ELECTRODE
19918
*
Tighten with wrench
*
19129 (Supplied).
The front end of the torch contains a gas flow valve
that acts in conjunction with the circuitry provided
in the console. This patented system provides a
safety interlock preventing the torch from being accidentally energized with high volt age when the heat
shield is removed and the torch switch is accidentally closed. Occasionally check this system by removing the heat shield. Turn on console. Do NOT
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