technical.service@hypertherm.com (Technical Service Email)
800-737-2978 Tel (Customer Service)
customer.service@hypertherm.com (Customer Service Email)
866-643-7711 Tel (Return Materials Authorization)
877-371-2876 Fax (Return Materials Authorization)
return.materials@hypertherm.com (RMA email)
Hypertherm Automation
5 Technology Drive, Suite 300
West Lebanon, NH 03784 USA
603-298-7970 Tel
603-298-7977 Fax
Hypertherm Plasmatechnik GmbH
Technologiepark Hanau
Rodenbacher Chaussee 6
D-63457 Hanau-Wolfgang, Deutschland
49 6181 58 2100 Tel
49 6181 58 2134 Fax
49 6181 58 2123 (Technical Service)
Hypertherm (S) Pte Ltd.
82 Genting Lane
Media Centre
Annexe Block #A01-01
Singapore 349567, Republic of Singapore
65 6841 2489 Tel
65 6841 2490 Fax
65 6841 2489 (Technical Service)
Hypertherm (Shanghai) Trading Co., Ltd.
Unit A, 5th Floor, Careri Building
432 West Huai Hai Road
Shanghai, 200052
PR China
86-21 5258 3330/1 Tel
86-21 5258 3332 Fax
Hypertherm Europe B.V.
Vaartveld 9
4704 SE
Roosendaal, Nederland
31 165 596907 Tel
31 165 596901 Fax
31 165 596908 Tel (Marketing)
31 165 596900 Tel (Technical Service)
00 800 4973 7843 Tel (Technical Service)
Hypertherm Japan Ltd.
Level 9, Edobori Center Building
2-1-1 Edobori, Nishi-ku
Osaka 550-0002 Japan
81 6 6225 1183 Tel
81 6 6225 1184 Fax
Hypertherm Brasil Ltda.
Rua Bras Cubas, 231 – Jardim Maia
Guarulhos, SP - Brasil
CEP 07115-030
55 11 2409 2636 Tel
55 11 2408 0462 Fax
Hypertherm México, S.A. de C.V.
Avenida Toluca No. 444, Anexo 1,
Colonia Olivar de los Padres
Delegación Álvaro Obregón
México, D.F. C.P. 01780
52 55 5681 8109 Tel
52 55 5683 2127 Fax
Hypertherm Korea Branch
#3904 Centum Leaders Mark B/D,
1514 Woo-dong, Haeundae-gu, Busan
Korea, 612-889
82 51 747 0358 Tel
82 51 701 0358 Fax
03/15/12
ELECTROMAGNETIC COMPATIBILITY (EMC)
Introduction
Hypertherm’s CE‑marked equipment is built
in compliance with standard EN60974‑10.
The equipment should be installed and used
in accordance with the information be low to
achieve electromagnetic compatibility.
The limits required by EN60974‑10 may not be
adequate to completely eliminate interference
when the affected equipment is in close
proximity or has a high degree of sen sitivity.
Insuch cases it may be nec essary to use other
mea sures to further reduce interference.
This cutting equipment is designed for use only
in an in dus tri al environment.
Installation and use
The user is responsible for installing and
using the plasma equipment according to the
manufacturer’s instructions. If electromagnetic
disturbances are detected then it shall be
the responsibility of the user to resolve the
situation with the technical assistance of the
manufacturer. In some cases this remedial
action may be as simple as earthing the
cutting circuit, see Earthing of Workpiece.
Inother cases it could involve constructing an
electromagnetic screen enclosing the power
source and the work complete with associated
input filters. In all cases electromagnetic
disturbances must be reduced to the point
where they are no longer troublesome.
Assessment of area
Before installing the equipment the user
shall make an assessment of potential
electromagnetic problems in the surrounding
area. The following shall be taken into account:
a. Other supply cables, control cables,
signalling and telephone cables; above,
below and adjacent to the cutting equipment.
b. Radio and television transmitters and
receivers.
c. Computer and other control equip ment.
d. Safety critical equipment, for example
guarding of industrial equipment.
e. Health of the people around, for example the
use of pacemakers and hearing aids.
f. Equipment used for calibration or
measurement.
g. Immunity of other equipment in the
environment. User shall ensure that other
equipment being used in the environment
is compatible. This may require additional
protection measures.
h. Time of day that cutting or other activities are
to be carried out.
The size of the surround ing area to be
considered will depend on the structure of
the building and other activities that are taking
place. The surrounding area may extend beyond
the bound aries of the premises.
Methods of reducing
emissions
Mains supply
Cutting equipment must be connected to the
mains supply according to the manufacturer’s
recommendations. If interference occurs, it may
be necessary to take additional precautions
Compliance Information EMC-1
9/10
ElEctromagnEtic compatibility (Emc)
such as filtering of the mains supply.
Consideration should be given to shielding the
supply cable of permanently installed cutting
equipment, in metallic conduit or equivalent.
Shielding should be electrically continuous
throughout its length. The shielding should be
connected to the cutting mains supply so that
good electrical contact is maintained between
the conduit and the cutting pow er source
enclosure.
Maintenance of cutting equipment
The cutting equipment must be routinely
maintained according to the manufacturer’s
recommendations. All access and service doors
and covers should be closed and properly
fastened when the cutting equipment is in
operation. The cutting equipment should not
be modified in any way except as set forth in
and in accordance with the manufacturer’s
written instructions. For example, the spark gaps
of arc striking and stabilizing devices should
be adjusted and maintained according to the
manufacturer’s recommendations.
Cutting cables
The cutting cables should be kept as short
aspossible and should be positioned close
together, running at or close to the floor level.
Equipotential bonding
Bonding of all metallic components in the
cutting installation and adjacent to it should
be considered. However, metallic com po nents
bonded to the workpiece will increase the risk
that the operator could receive a shock by
touching these metallic components and the
electrode (nozzle for laser heads) at the same
time. The operator should be insulated from all
such bonded metallic components.
Earthing of workpiece
Where the workpiece is not bonded to earth
for electrical safety, nor connected to earth
because of its size and position, for example,
ship’s hull or building steelwork, a connection
bonding the work piece to earth may reduce
emis sions in some, but not all instances.
Careshould be taken to prevent the earthing
ofthe workpiece increasing the risk of injury
to users, or damage to other electrical
equipment. Where necessary, the connection
of the workpiece to earth should be made by
a direct connection to the workpiece, but in
some countries where direct connection is not
permitted, the bonding should be achieved by
suitable capacitances selected according to
national regulations.
Note: the cutting circuit may or may not
be earthed for safety reasons. Changing
the earthing arrangements should only be
authorized by a person who is competent to
assess whether the changes will increase the
risk of injury, for example, by allowing parallel
cutting current return paths which may damage
the earth cir cuits of other equipment. Further
guidance is provided in IEC 60974‑9, Arc
Welding Equip ment, Part 9: Installation and
Use.
Screening and shielding
Selective screening and shielding of other
cables and equipment in the surrounding
area may alleviate problems of interference.
Screening of the entire plasma cutting
installation may be con sid ered for special
applications.
EMC-2 Compliance Information
9/10
WARRANTY
Attention
Genuine Hypertherm parts are the factory‑
recommended replacement parts for your
Hypertherm system. Any damage or injury
caused by the use of other than genuine
Hypertherm parts may not be covered by the
Hypertherm warranty, and will constitute misuse
of the Hypertherm Product.
You are solely responsible for the safe use of
the Product. Hypertherm does not and cannot
make any guarantee or warranty regarding the
safe use of the product in your environment.
General
Hypertherm, Inc. warrants that its Products
shall be free from defects in materials and
workmanship for the specific periods of time
set forth herein and as follows: if Hypertherm
is notified of a defect (i) with respect to the
power supply within a period of two (2) years
from the date of its delivery to you, with the
exception of Powermax brand power supplies,
which shall be within a period of three (3) years
from the date of delivery to you, and (ii) with
respect to the torch and leads within a period
of one (1) year from its date of delivery to you,
and with respect to torch lifter assemblies
within a period of one (1) year from its date of
delivery to you, and with respect to laser heads
within a period of one (1) year from its date of
delivery to you, and with respect to Automation
products one (1) year from its date of delivery
to you, with the exception of the EDGE Pro
CNC and ArcGlide THC, which shall be within
a period of two (2) years from the date of
delivery to you.
This warranty shall not apply to any Powermax
brand power supplies that have been used with
phase converters. In addition, Hypertherm does
not warranty systems that have been damaged
as a result of poor power quality, whether from
phase converters or incoming line power. This
warranty shall not apply to any Product which
has been incorrectly installed, modified, or
otherwise damaged.
Hypertherm provides repair, replacement or
adjustment of the Product as the sole and
exclusive remedy, if and only if the warranty
set forth herein properly is invoked and
applies. Hypertherm, at its sole option, shall
repair, replace, or adjust, free of charge, any
defective Products covered by this warranty
which shall be returned with Hypertherm’s prior
authorization (which shall not be unreasonably
withheld), properly packed, to Hypertherm’s
place of business in Hanover, New Hampshire,
or to an authorized Hypertherm repair facility,
all costs, insurance and freight pre paid by
the customer. Hypertherm shall not be liable
for any repairs, replacement, or adjustments
of Products covered by this warranty, except
those made pursuant to this paragraph and
with Hypertherm’s prior written consent.
The warranty set forth above is exclusive and is
in lieu of all other warranties, express, implied,
statutory, or otherwise with respect to the
Products or as to the results which may be
obtained therefrom, and all implied warranties
or conditions of quality or of merchantability
or fitness for a particular purpose or against
infringement. The foregoing shall constitute the
sole and exclusive remedy for any breach by
Hypertherm of its warranty.
Compliance Information W-1
9/10
Warranty
WARRANTY
Distributors/OEMs may offer different or
additional warranties, but Distributors/OEMs
are not authorized to give any additional
warranty protection to you or make any
representation to you purporting to be binding
upon Hypertherm.
Patent indemnity
Except only in cases of products not
manufactured by Hypertherm or manufactured
by a person other than Hypertherm not in strict
conformity with Hypertherm’s specifications
and in cases of designs, processes, formulae,
or combinations not developed or purported
to be developed by Hypertherm, Hypertherm
will have the right to defend or settle, at
its own expense, any suit or proceeding
brought against you alleging that the use
of the Hypertherm product, alone and not
in combination with any other product not
supplied by Hypertherm, infringes any patent
of any third party. You shall notify Hypertherm
promptly upon learning of any action or
threatened action in connection with any
such alleged infringement (and in any event
no longer than fourteen (14) days after
learning of any action or threat of action), and
Hypertherm’s obligation to defend shall be
conditioned upon Hypertherm’s sole control
of, and the indemnified party’s cooperation and
assistance in, the defense of the claim.
Limitation of liability
In no event shall Hypertherm be liable to
any person or entity for any incidental,
consequential direct, indirect, punitive
or exemplary damages (including but
not limited to lost profits) regardless of
whether such liability is based on breach
of contract, tort, strict liability, breach of
warranty, failure of essential purpose,
or otherwise, and even if advised of the
possibility of such damages.
National and local codes
National and local codes governing plumbing
and electrical installation shall take precedence
over any instructions contained in this manual.
In no event shall Hypertherm be liable for injury
to persons or property damage by reason of
any code violation or poor work practices.
Liability cap
In no event shall Hypertherm’s liability,
if any, whether such liability is based on
breach of contract, tort, strict liability,
breach of warranties, failure of essential
purpose or otherwise, for any claim,
action, suit or proceeding (whether in
court, arbitration, regulatory proceeding
or otherwise) arising out of or relating
to the use of the Products exceed in
the aggregate the amount paid for the
Products that gave rise to such claim.
Insurance
At all times you will have and maintain
insurance in such quantities and types, and
with coverage sufficient and appropriate to
defend and to hold Hypertherm harmless in the
event of any cause of action arising from the
use of the products.
W-2 Compliance Information
9/10
Transfer of rights
You may transfer any remaining rights you may
have hereunder only in connection with the
sale of all or substantially all of your assets or
capital stock to a successor in interest who
agrees to be bound by all of the terms and
conditions of this Warranty. Within thirty (30)
days before any such transfer occurs, you
agree to notify in writing Hypertherm, which
reserves the right of approval. Should you
fail timely to notify Hypertherm and seek its
approval as set forth herein, the Warranty set
forth herein shall be null and void and you will
have no further recourse against Hypertherm
under the Warranty or otherwise.
Warranty
Compliance Information W-3
9/10
Warranty
W-4 Compliance Information
9/10
Safety information
Before operating any Hypertherm equipment, read the separate Safety and Compliance Manual
(80669C) included with your product for important safety information.
Consumable life .................................................................................................................................................. 2‑2
Hand torch setup ............................................................................................................................................... 2‑3
Choose the hand torch consumables ................................................................................................ 2‑3
Hand torch consumables ...................................................................................................................... 2‑4
Install the hand torch consumables ..................................................................................................... 2‑5
Converting a Duramax retrofit machine torch into a mini torch .................................................... 2‑7
Mount the torch ........................................................................................................................................ 2‑9
Choose the machine torch consumables ........................................................................................2‑12
Install the machine torch consumables ............................................................................................2‑15
Aligning the torch ..................................................................................................................................2‑15
Using the cut charts .......................................................................................................................................... 3‑2
100 amp mechanized shielded cutting for Powermax1650.......................................................... 3‑5
85 amp mechanized shielded cutting for Powermax1650 ............................................................ 3‑7
80 amp mechanized shielded cutting for Powermax1250/1650 ..............................................3‑11
Duramax Retrofit Torch Operator Manuali
Table of ConTenTs
65 amp mechanized shielded cutting for Powermax1250/1650 ..............................................3‑13
60 amp mechanized shielded cutting for Powermax1000/1250/1650 ...................................3‑17
45 amp mechanized shielded cutting for Powermax1000/1250/1650 ...................................3‑19
100 amp mechanized unshielded cutting for Powermax1650 ...................................................3‑23
85 amp mechanized unshielded cutting for Powermax1650......................................................3‑25
65 amp mechanized unshielded cutting for Powermax1250/1650 ..........................................3‑29
45 amp mechanized unshielded cutting for Powermax1000/1250/1650 ..............................3‑33
FineCut® consumables for Powermax1000/1250/1650.............................................................3‑37
Using the hand torch .......................................................................................................................................3‑42
Operate the safety trigger ...................................................................................................................3‑42
Hand torch cutting hints ......................................................................................................................3‑43
Start a cut from the edge of the workpiece.....................................................................................3‑44
Pierce a workpiece ................................................................................................................................3‑45
Gouge a workpiece ..............................................................................................................................3‑46
Common hand‑cutting faults ..............................................................................................................3‑49
Using the machine torch ................................................................................................................................3‑50
Ensure the torch and table are set up correctly .............................................................................3‑50
Understand and optimize cut quality .................................................................................................3‑50
To pierce a workpiece using the machine torch ............................................................................3‑53
Common machine‑cutting faults ........................................................................................................3‑53
Section 4
Maintenance and parts .....................................................................................................................4-1
Inspect the consumables ................................................................................................................................. 4‑3
Hand torch replacement parts ........................................................................................................................ 4‑4
Machine torch replacement parts .................................................................................................................. 4‑6
Consumable life .................................................................................................................................................. 2‑2
Hand torch setup ............................................................................................................................................... 2‑3
Choose the hand torch consumables ................................................................................................ 2‑3
Hand torch consumables ...................................................................................................................... 2‑4
Install the hand torch consumables ..................................................................................................... 2‑5
Converting a Duramax retrofit machine torch into a mini torch .................................................... 2‑7
Mount the torch ........................................................................................................................................ 2‑9
Choose the machine torch consumables ........................................................................................2‑12
Install the machine torch consumables ............................................................................................2‑15
Aligning the torch ..................................................................................................................................2‑15
Duramax™ series handheld and machine retrofit torches are available for the Powermax1000,
Powermax1250, and Powermax1650 systems. The ETR (Easy Torch Removal)™ quick‑disconnect
system makes it easy to remove the torch for transport or to switch from one torch to the other if
your applications require the use of different torches. The torches are cooled by ambient air and do
not require special cooling procedures.
This section explains how to setup your torch and choose the appropriate consumables for the job.
Consumable life
How often you need to change the consumables on your retrofit torch will depend on a number of
factors:
•Thickness of the material – the thicker the material being cut, the more often consumables
need to be changed.
•Average length of cut – the longer the average cut, the more often consumables need to
be changed.
•Type of cutting – handheld cutting will require more consumable changes than machine
cutting.
•Air quality – the presence of oil, moisture, or other contaminants will reduce consumable
life.
•Piercing / edge starting – piercing the metal causes more consumable wear then starting
cuts from the edge of the metal.
•Proper torch‑to‑work distance – when gouging or cutting with unshielded consumables,
maintaining proper torch‑to‑work distance will result in better consumable life.
•Proper pierce height – maintaining proper pierce height will result in better consumable
life.
•Cutting in “continuous pilot arc” mode or normal cutting mode – cutting with a continuous
pilot arc causes more consumable wear than cutting in normal cutting mode.
You will find more information about proper cutting techniques in Section 3, Operation.
2-2 Duramax Retrofit Torch Operator Manual
Hand torch setup
Duramax HRT
TORCH SETUP
Consumables
Duramax HRTs
Consumables
Safety trigger
Safety trigger
Choose the hand torch consumables
Duramax retrofit torches are shipped with a full set of cutting consumables pre‑installed.
Hypertherm also includes spare cutting electrodes, nozzles, and gouging consumables in the
consumables box, for handheld torches.
Consumables for handheld cutting are shown on the next page. Notice that the retaining cap and
electrode are the same for cutting, gouging, and FineCut® applications. Only the shield, nozzle,
and swirl ring are different.
For the best cut quality on thin materials, you may prefer to use FineCut consumables, or use a
45A nozzle and reduce the current setting to 45 amps.
Duramax Retrofit TorchOperator Manual2-3
Torch seTup
Hand torch consumables
Drag-cutting consumables: Powermax1000/1250/1650
4
5
A
220941
Nozzle
6
5
A
220818
Shield
220854
Retaining cap
220992
Shield
Gouging consumables: Powermax1000/1250/1650
220819
Nozzle
8
5
A
220816
Nozzle
1
0
0
A
220990
Nozzle
220842
Electrode
220857
Swirl ring
220994
Swirl ring
6
8
5
5
A
A
220798
Shield
FineCut
220931
Shield
220797
Nozzle
220854
Retaining cap
1
0
0
A
220991
220842
Electrode
Nozzle
®
consumables: Powermax1000/1250/1650
220854
Retaining cap
220930
Nozzle
220842
Electrode
220857
Swirl ring
220994
Swirl ring
220947
Swirl ring
Powermax1000 – Use 45‑65 A consumables
Powermax1250 – Use 45‑85 A consumables
Powermax1650 – Use 45‑100 A consumables
2-4 Duramax Retrofit Torch Operator Manual
TORCH SETUP
Install the hand torch consumables
WARNING
INSTANTON TORCHES
PLASMA ARC CAN CAUSE INJURY AND BURNS
The plasma arc comes on im me di ate ly when the torch trigger is
activated. Make sure the power is OFF before changing consumables.
To operate the hand torch, a complete set of consumable parts must be installed: shield, retaining
cap, nozzle, electrode, and swirl ring.
With the power switch in the OFF (O) position, install the torch consumables asshown below.
Swirl ring
Electrode
Nozzle
Retaining cap
Shield
Duramax Retrofit TorchOperator Manual2-5
Torch seTup
Machine torch setup
Duramax MRT
Mounting
Consumables
sleeve
Coupler
Positioning sleeve
Strain relief nut
Torch lead
Gear rackStrain relief body
Main strain
relief nut
Duramax MRT without positioning sleeve (mini torch)
Mounting
Consumables
sleeve
Coupler
Strain relief nut
Torch lead
Strain relief body
Before using either style of machine torch, you must:
•Mount the torch on your cutting table or other equipment.
•Choose and install the consumables.
•Align the torch.
•Attach the torch lead to the power supply.
•Set up the power supply for remote starting with either the remote‑start pendant or a
machine interface cable.
2-6 Duramax Retrofit Torch Operator Manual
TORCH SETUP
Converting a Duramax retrofit machine torch into a mini torch
You can convert a full‑length machine torch to a mini‑machine torch by removing the positioning
sleeve.
Note: If you are converting a full‑length machine torch to a mini‑machine torch and
mounting the torch at the same time, skip this section and follow the instructions in
“Mount the torch” on page 2‑9.
Refer to the figures in the section “Machine torch setup” on page 2‑6 and follow these instructions.
Note: While disconnecting and reconnecting the torch parts, maintain the same orientation
between the torch head and torch lead. Twisting the torch head in relation to the
torch lead can cause damage.
1. Disconnect the torch lead from the power supply and remove the consumables from the torch.
2. Unscrew the strain relief body from the strain relief nut and slide the strain relief body back
along the torch lead.
3. Unscrew the strain relief nut from the positioning sleeve and slide the nut back along the torch
lead.
4. Unscrew the positioning sleeve from the coupler.
5. Unscrew the coupler from the mounting sleeve.
6. Remove the three screws from the consumables end of the mounting sleeve and slide the
mounting sleeve off the front of the torch body.
Duramax Retrofit TorchOperator Manual2-7
Torch seTup
Pilot wire
terminal screw
Torch head
Gas supply line
connection
Wire connector for
cap‑sensor switch
7. Disconnect the wire connector for the cap‑sensor switch.
8. Use a #2 Phillips screwdriver to remove the screw that secures the torch’s pilot wire to the
torch body.
9. Use 1/4‑inch and 3/8‑inch wrenches, or adjustable wrenches, to loosen the nut that secures
the gas supply line to the torch lead. Set the torch body aside.
10. Slide the coupler and positioning sleeve off the front of the torch lead.
11. Slide the coupler over the torch lead.
12. Reconnect the gas line to the torch lead.
13. Reattach the torch’s pilot wire to the torch body using the screw.
14. Reconnect the cap‑sensor switch’s wire connector.
15. Slide the mounting sleeve over the front of the torch body. Align the slot on the front of the
mounting sleeve (next to one of the three screw holes) with the cap‑sensor plunger on the
torch body.
16. Attach the mounting sleeve to the torch body using the three screws.
17. Screw the coupler into the mounting sleeve.
18. Screw the strain relief nut into the coupler.
19. Screw the strain relief body into the strain relief nut.
2-8 Duramax Retrofit Torch Operator Manual
TORCH SETUP
Mount the torch
Depending on the type of cutting table you have, you may or may not need to disassemble the
torch to route it through the track and mount it. If your cutting table’s track is large enough for you
to thread the torch through it without removing the torch body from the lead, do so and then attach
the torch to the lifter per the manufacturer’s instructions.
Note: The Duramax machine torches can be mounted on a wide variety of X‑Y tables, track
burners, pipe bevelers, and other equipment. Install the torch per the manufacturer’s
instructions and follow the instructions below for disassembly if necessary.
If you need to disassemble and reassemble the torch, refer to the figures in the section “Machine
torch setup” on page 2‑6 and follow these instructions.
Note: While disconnecting and reconnecting the torch parts, maintain the same orientation
between the torch head and torch lead. Twisting the torch head in relation to the
torch lead can cause damage.
1. Disconnect the torch lead from the power supply and remove the consumables from the torch.
2. Unscrew the strain relief body from the strain relief nut and slide the strain relief body back
along the torch lead.
3. Unscrew the strain relief nut from the positioning sleeve (full‑length machine torch) and slide
the nut back along the torch lead.
4. Unscrew the positioning sleeve from the coupler.
5. Unscrew the coupler from the mounting sleeve.
6. Remove the three screws from the consumables end of the mounting sleeve and slide the
mounting sleeve off the front of the torch body.
Duramax Retrofit TorchOperator Manual2-9
Torch seTup
Pilot wire terminal screw
Wire connector for
Torch head
7. Disconnect the wire connector for the cap‑sensor switch.
8. Use a #2 Phillips screwdriver to remove the screw that secures the torch’s pilot wire to the
torch body.
9. Use 1/4‑inch and 3/8‑inch wrenches, or adjustable wrenches, to loosen the nut that secures
the gas supply line to the torch lead. Set the torch body aside.
Gas supply line
connection
cap‑sensor switch
Note: Cover the end of the gas line on the torch lead with tape to keep dirt and other
contaminants from getting in the gas line when you route the lead through the track.
10. Slide the coupler, positioning sleeve (full‑length machine torch), strain relief nut, and strain
relief body off the front of the torch lead.
11. If you do not need the gear rack on a full‑length machine torch, slide the gear rack from the
positioning sleeve toward the consumables end of the sleeve.
12. Route the torch lead through the cutting table’s track.
2-10 Duramax Retrofit Torch Operator Manual
TORCH SETUP
13. Slide the strain relief body and strain relief nut over the torch lead.
14. If you are mounting a full‑length machine torch, slide the positioning sleeve over the torch
head.
15. Slide the coupler over the torch lead.
16. Reconnect the gas line to the torch lead.
17. Reattach the torch’s pilot wire to the torch body using the screw.
18. Reconnect the cap‑sensor switch’s wire connector.
19. Slide the mounting sleeve over the front of the torch body. Align the slot on the front of the
mounting sleeve (next to one of the three screw holes) with the cap‑sensor plunger on the
torch body.
20. Attach the mounting sleeve to the torch body using the three screws.
21. Screw the coupler into the mounting sleeve.
22. If you are mounting a full‑length machine torch, screw the positioning sleeve into the coupler.
23. Reconnect the strain relief nut and strain relief body.
24. Attach the torch to the lifter per the manufacturer’s instructions.
Duramax Retrofit TorchOperator Manual2-11
Torch seTup
Choose the machine torch consumables
Powermax systems with the Duramax MRT retrofit torch are shipped with a complete set
of consumables. Hypertherm also includes spare electrodes and nozzles. In addition, an
ohmic‑sensing retaining cap is available for use with shielded consumables. With shielded
consumables, the torch tip may touch the metal when cutting. With unshielded consumables, you
must keep the torch a small distance, about .08 inch (2 mm), away from the metal. Unshielded
consumables generally have a shorter life than shielded consumables.