Lincoln Electric Invertec Racks Operating instructions

Lincoln Electric
Brand
Lincoln Electric
Model
Invertec Racks
Category
Welding System
Type
Operating instructions
INVERTEC
®
RACKS
OPERATOR’S MANUAL
IM512
May,2000
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful operation on your part.
DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT.
And, most
importantly, think before you act
and be careful.
Covers Rack codes 10038; 10039; 10040; 10041; 10042; 10043; 10044; 10045
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
• World's Leader in Welding and Cutting Products •
Date of Purchase:
Serial Number:
Code Number:
Model:
Where Purchased:
This manual covers equipment which is no
longer in pr
oduction by The Lincoln Electric Co.
Specications and availability of optional
featur
es may have changed.
i
SAFETY
i
ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH.
KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you
purchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box
351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available
from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE
PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
WARNING
Mar ‘95
ELECTRIC AND
MAGNETIC FIELDS
may be dangerous
2.a. Electric current flowing through any conductor causes
localized Electric and Magnetic Fields (EMF). Welding
current creates EMF fields around welding cables and
welding machines
2.b. EMF fields may interfere with some pacemakers, and
welders having a pacemaker should consult their physician
before welding.
2.c. Exposure to EMF fields in welding may have other health
effects which are now not known.
2.d. All welders should use the following procedures in order to
minimize exposure to EMF fields from the welding circuit:
2.d.1.
Route the electrode and work cables together - Secure
them with tape when possible.
2.d.2. Never coil the electrode lead around your body.
2.d.3. Do not place your body between the electrode and
work cables. If the electrode cable is on your right
side, the work cable should also be on your right side.
2.d.4. Connect the work cable to the workpiece as close as
possible to the area being welded.
2.d.5. Do not work next to welding power source.
1.h. To avoid scalding, do not remove the
radiator pressure cap when the engine is
hot.
CALIFORNIA PROPOSITION 65 WARNINGS
Diesel engine exhaust and some of its constituents
are known to the State of California to cause can-
cer, birth defects, and other reproductive harm.
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
The Above For Diesel Engines
The Above For Gasoline Engines
FOR ENGINE
powered equipment.
1.a. Turn the engine off before troubleshooting and maintenance
work unless the maintenance work requires it to be running.
____________________________________________________
1.b.Operate engines in open, well-ventilated
areas or vent the engine exhaust fumes
outdoors.
____________________________________________________
1.c. Do not add the fuel near an open flame weld-
ing arc or when the engine is running. Stop
the engine and allow it to cool before refuel-
ing to prevent spilled fuel from vaporizing on
contact with hot engine parts and igniting. Do
not spill fuel when filling tank. If fuel is spilled,
wipe it up and do not start engine until fumes
have been eliminated.
____________________________________________________
1.d. Keep all equipment safety guards, coversand devices in posi-
tion and in good repair.Keep hands, hair, clothing and tools
away from V-belts, gears, fans and all other moving parts
when starting, operating or repairing equipment.
____________________________________________________
1.e. In some cases it may be necessary to remove safety
guards to perform required maintenance. Remove
guards only when necessary and replace them when the
maintenance requiring their removal is complete.
Always use the greatest care when working near moving
parts.
___________________________________________________
1.f. Do not put your hands near the engine fan.
Do not attempt to override the governor or
idler by pushing on the throttle control rods
while the engine is running.
___________________________________________________
1.g. To prevent accidentally starting gasoline engines while
turning the engine or welding generator during maintenance
work, disconnect the spark plug wires, distributor cap or
magneto wire as appropriate.
SAFETY
ii
FOR ELECTRICALLY
powered equipment.
8.a. Turn off input power using the disconnect
switch at the fuse box before working on
the equipment.
8.b. Install equipment in accordance with the U.S. National
Electrical Code, all local codes and the manufacturer’s
recommendations.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
CYLINDER may explode
if damaged.
7.a. Use only compressed gas cylinders
containing the correct shielding gas for the
process used and properly operating
regulators designed for the gas and
pressure used. All hoses, fittings, etc. should be suitable for
the application and maintained in good condition.
7.b. Always keep cylinders in an upright position securely
chained to an undercarriage or fixed support.
7.c. Cylinders should be located:
• Away from areas where they may be struck or subjected to
physical damage.
• A safe distance from arc welding or cutting operations and
any other source of heat, sparks, or flame.
7.d. Never allow the electrode, electrode holder or any other
electrically “hot” parts to touch a cylinder.
7.e. Keep your head and face away from the cylinder valve outlet
when opening the cylinder valve.
7.f. Valve protection caps should always be in place and hand
tight except when the cylinder is in use or connected for
use.
7.g. Read and follow the instructions on compressed gas
cylinders, associated equipment, and CGA publication P-l,
“Precautions for Safe Handling of Compressed Gases in
Cylinders,” available from the Compressed Gas Association
1235 Jefferson Davis Highway, Arlington, VA 22202.
Mar ‘95
WELDING SPARKS can
cause fire or explosion.
6.a.
Remove fire hazards from the welding area.
If this is not possible, cover them to prevent
the welding sparks from starting a fire.
Remember that welding sparks and hot
materials from welding can easily go through small cracks
and openings to adjacent areas. Avoid welding near
hydraulic lines. Have a fire extinguisher readily available.
6.b. Where compressed gases are to be used at the job site,
special precautions should be used to prevent hazardous
situations. Refer to “Safety in Welding and Cutting” (ANSI
Standard Z49.1) and the operating information for the
equipment being used.
6.c. When not welding, make certain no part of the electrode
circuit is touching the work or ground. Accidental contact
can cause overheating and create a fire hazard.
6.d. Do not heat, cut or weld tanks, drums or containers until the
proper steps have been taken to insure that such procedures
will not cause flammable or toxic vapors from substances
inside. They can cause an explosion even
though
they have
been “cleaned”. For information, purchase “Recommended
Safe Practices for the
Preparation
for Welding and Cutting of
Containers and Piping That Have Held Hazardous
Substances”, AWS F4.1 from the American Welding Society
(see address above).
6.e. Vent hollow castings or containers before heating, cutting or
welding. They may explode.
6.f.
Sparks and spatter are thrown from the welding arc. Wear oil
free protective garments such as leather gloves, heavy shirt,
cuffless trousers, high shoes and a cap over your hair. Wear
ear plugs when welding out of position or in confined places.
Always wear safety glasses with side shields when in a
welding area.
6.g. Connect the work cable to the work as close to the welding
area as practical. Work cables connected to the building
framework or other locations away from the welding area
increase the possibility of the welding current passing
through lifting chains, crane cables or other alternate cir-
cuits. This can create fire hazards or overheat lifting chains
or cables until they fail.
6.h. Also see item 1.c.
SAFETY
Mar. ‘93
ELECTRIC AND MAGNETIC
FIELDS
may be dangerous
8.a. Electric current flowing through any conductor causes
localized Electric and Magnetic Fields (EMF). Welding
current creates EMF fields around welding cables and
welding machines
8.b. EMF fields may interfere with some pacemakers, and
welders having a pacemaker should consult their physician
before welding.
8.c. Exposure to EMF fields in welding may have other health
effects which are now not known.
8d. All welders should use the following procedures in order to
minimize exposure to EMF fields from the welding circuit:
8.d.1.
Route the electrode and work cables together - Secure
them with tape when possible.
8.d.2. Never coil the electrode lead around your body.
8.d.3. Do not place your body between the electrode and
work cables. If the electrode cable is on your right
side, the work cable should also be on your right side.
8.d.4. Connect the work cable to the workpiece as close as
possible to the area being welded.
8.d.5. Do not work next to welding power source.
FOR ENGINE
powered equipment.
7.a. Turn the engine off before troubleshooting and maintenance
work unless the maintenance work requires it to be running.
____________________________________________________
7.b. Operate engines in open, well-ventilated
areas or vent the engine exhaust fumes
outdoors.
____________________________________________________
7.c. Do not add the fuel near an open flame
welding arc or when the engine is running.
Stop the engine and allow it to cool before
refueling to prevent spilled fuel from
vaporizing on contact with hot engine parts
and igniting. Do not spill fuel when filling
tank. If fuel is spilled, wipe it up and do not
start engine until fumes have been
eliminated.
____________________________________________________
7.d. Keep all equipment safety guards, covers
and devices in position and in good repair.
Keep hands, hair, clothing and tools away
from V-belts, gears, fans and all other
moving parts when starting, operating or
repairing equipment.
____________________________________________________
7.e. In some cases it may be necessary to remove safety
guards to perform required maintenance. Remove
guards only when necessary and replace them when the
maintenance requiring their removal is complete.
Always use the greatest care when working near moving
parts.
7.f. Do not put your hands near the engine fan. Do not
attempt to override the governor or idler by pushing on
the throttle control rods while the engine is running.
7.g. To prevent accidentally starting gasoline engines while
turning the engine or welding generator during maintenance
work, disconnect the spark plug wires, distributor cap or
magneto wire as appropriate.
___________________________________________________
7.h. To avoid scalding, do not remove the
radiator pressure cap when the engine is
hot.
iii
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Thank You
for selecting a QUALITY product by Lincoln Electric.
We want you to take pride in operating this Lincoln
Electric Company product ••• as much pride as we
have in bringing this product to you!
Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it
handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection.
The level of seriousness to be applied to each is explained below:
WARNING
This statement appears where the information must be followed exactly to avoid serious personal injury or
loss of life.
This statement appears where the information must be followed to avoid minor personal injury or damage to
this equipment.
CAUTION
Please Examine Carton and Equipment For Damage Immediately
When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims
for material damaged in shipment must be made by the purchaser against the transportation company at the time
the shipment is received.
Please record your equipment identification information below for future reference. This information can be found
on your machine nameplate.
Code Number _____________________________________
Serial Number _____________________________________
Model Name _____________________________________
Date of Purchase __________________________________
Whenever you request replacement parts for or information on this equipment always supply the information you
have recorded above.
v
TABLE OF CONTENTS
Page
Safety .....................................................................................................................i-iv
Installation..................................................................................................................1-5
Technical Specifications.........................................................................................1-2
Physical Dimensions
Safety Precautions.....................................................................................................3
Mechanical Installation ( K898 & K912 Series).......................................................3-4
Mounting Products Supported ...................................................................................4
Electrical Installation...............................................................................................4-5
Fusing.........................................................................................................................5
Products Supported....................................................................................................5
Limitations ..................................................................................................................5
Operation....................................................................................................................6-8
Safety Instructions .....................................................................................................6
General Description...................................................................................................7
Power Up Procedure ..............................................................................................7-8
Transporting or Hoisting Racks...................................................................................8
Operating Optional Accessories .................................................................................8
Accessories...................................................................................................................9
Parts Manual ..........................................................................................................11-17
Wiring Diagrams ....................................................................................................18-19
vi
INVERTEC RACKS
INSTALLATION
INVERTEC RACKS
TECHNICAL SPECIFICATIONS - INVERTEC RACKS
Code Number
10038
10039
10040
10041
Description
w/disconnect w/115V
w/disconnect
w/115V
Product Number
K898-1
K898-2
K898-3
K898-4
K898 Series of Aluminum Four Pack Racks
All Heights listed include the lift bale.
- 1 -
Weight
128 lbs / 58 kg
99 lbs / 45 kg
119 lbs / 54 kg
90 lbs / 41 kg
Part Number
L9165-1
L9165-2
L9165-3
L9165-4
K912 Series of Steel Eight Pack Racks
Optional Accessories
Code Number
10042
10043
10044
10045
Description
w/disconnect w/115V
w/disconnect
w/115V
Product Number
K912-1
K912-2
K912-3
K912-4
Weight
414 lbs / 188 kg
383 lbs / 174 kg
405 lbs / 184 kg
374 lbs / 170 kg
Part Number
L9166-1
L9166-2
L9166-3
L9166-4
Code Number
NONE
NONE
NONE
NONE
Description
115V Power Pack
Caster Wheel Kit
Quick Connect Plug Kit
50 Ft. Primary Extension Cord
Product Number
K905-1
K906-2
K907-3
K908-4
Part Number
M17121
M17122
M17123
M17124
Weights listed above are with standard skids.
Physical Dimensions
Dimensions H / W / D
66.0” / 27.5” / 32.5” (167.6cm / 69.9cm / 82.6cm)
68.5” / 27.5” / 26.0” (174.0cm / 69.9cm / 66.0cm)
66.0” / 50.0” / 26.0” (167.6cm / 127.0cm / 66.0cm)
Type
with Skids
with Caster Wheels
Skids only
Product
K898 Series
K898 Series
K912 Series
- 2 -
INVERTEC RACKS
INSTALLATION
OFF
ON
OFF
ON
OFF
ON
OFF
ON
WARNING
R
1
2
3
4
O
O O
O
INVERTEC RACK
115V
10
26.0
32.3
27.5
61.0
66.0
4.0
22.0
11.3
R
OFF
ON
O OFF
ON
O OFF
ON
O OFF
ON
O OFF
ON
O OFF
ON
O OFF
ON
O OFF
ON
O
115V
1
2
3
4
5
6
7
8
INVERTEC RACK
WARNING
MANUFACTURED FOR
LINCOLN ELECTRIC CO.
10
26.0
61.0
66.0
22.0
4.0
50.0
22.5
STEEL K912-1 with Skids
ALUMINUM K898-1 with Skids
INSTALLATION
INVERTEC RACKS
- 3 -
Read entire installation section before starting
installation.
Safety Precautions
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this installation.
• Turn the input power OFF at the
disconnect switch or fuse box or by
unplugging power cable before
working on this equipment.
• Do not touch electrically hot
parts.
WARNING
MECHANICAL INSTALLATION
K898 Series of Aluminum Racks (4)
Step 1 Unpack Carton
Remove four pack cartons. Unpack skids and set
aside. Remove hardware mounting rack to pallet.
Remove screws that fasten hood down. For racks
with main disconnect, the switch must be in the “OFF”
position before the hood can be removed. Remove
hood from rack and take out parts bag and check
against the list provided.
Step 2 Attach Skids
Skids can be installed by hoisting rack one foot above
ground level. If hoist is not available, place rack skids
on level surface near rack approximately 27” apart
from outside edges. Two-man lift the four pack off
pallet and place onto skids with rack front perpendicu-
lar to skids as shown below. Align holes. Place flat
washer on 1/4 - 20 x 2.25” bolt. Insert bolt from the
top side. Place 1/4 - 20 lock nut on bolt from bottom
side. Fasten four bolts and nuts per skid, securely.
The rack is ready for mounting products supported.
Step 3 Attach K898-3, -4 Slave Unit to K898-1, -2
Primary Unit
Attach slave unit to primary unit only after skids or
casters have been installed to both the primary and
slave units.
Remove hood from both racks. Remove 2.00” knock-
outs on primary and slave units. Place both racks in
upright position, side-by-side with slave unit to the
right when viewed from the front. Align units so that
the 2.00” holes are concentric. Clamp racks together.
Drill six .313” diameter clearance holes for a 1/4 - 20
bolt using the slave unit as a guide. Remove clamp.
Join slave unit to primary unit using close nipple with
two steel lock washers and two neoprene lock wash-
ers as shown below. Do not tighten. Assemble slave
unit to primary unit with two 1/4 - 20 x 2.00” bolts, 4
flat washers and a rod coupling in six places as shown
below. Tighten lock nuts on close nipple. Cap close
nipple on each end with plastic bushing.
Mounting
Holes
(8 Places)
FRONT
Plastic Bushing
Neoprene
Lock Washer
Steel
Lock Washer
CLOSE NIPPLE
CONNECTION
Bolt
Rod Coupling
Washer
Bolt
Connections
- 4 -
INVERTEC RACKS
INSTALLATION
K912 Series of Steel Racks (8)
Step 1 Unpack Carton
Remove eight pack carton. Hoist rack 1 ft. above
ground level to remove pallet from rack. With rack on
level surface, remove screws that fasten hood down.
For racks with main disconnect, the switch must be in
the “OFF” position before the hood can be removed.
Remove hood from rack and take out parts bag and
check against the list provided. K912 series of racks
come with skids and do not require any assembly.
The rack is ready for mounting products supported.
MOUNTING PRODUCTS SUPPORTED
Always check for proper and secure mounting of
equipment before hoisting the rack to high or low ele-
vations.
------------------------------------------------------------------------
Mounting Power Source
Place power source in rack with controls toward the
front of rack. Align unit with mounting holes. Insert
four #10-24 x .75” L-bolts from the top side and
secure each L-bolt as follows:
Mounting K900-1 DC TIG Starter
The Invertec power source handles must be removed
in order to slide the Invertec/TIG unit into the rack.
Follow safety instructions and capacitor discharge
procedure as outlined in owner’s manual before ser-
vicing inverter power source.
------------------------------------------------------------------------
Remove handles from Invertec case. Use handle
hardware and flange nuts provided with rack to plug
the holes in the Invertec case, as shown below. A
quantity of eight and sixteen 3/8” flange nuts are sup-
plied with four pack and eight pack racks respectively.
Note: Earlier code machines may have insulation
held in place by handle hardware. If so, do not
remove it.
WARNING
L-BOLT
POWER SOURCE
BASE
RACK
SHELF
WING NUT
WASHER
Note:
Earlier code power sources may not have all four or
any mounting holes on the bottom of the base. If
hoisting the rack to high or low elevations is required,
provisions for the use of all four mounting screws
must be made. Use the following dimensions for hole
locations.
4.50
9.65
13.50
BACK
BOTTOM
VIEW
FRONT
.22 DIA
(4 PLACES)
WARNING
SCREW
WASHER
FLANGE NUT
INSULATION
(IF PRESENT)
Once the handles are removed, follow the instructions
in the TIG Starter Owner’s Manual to mount the
Invertec on top of the DC TIG Starter.
Place the Invertec/TIG unit into the rack with controls
toward front of rack. Align unit with mounting holes.
Secure Invertec/TIG unit to shelf as follows:
SCREW
WASHER
RACK
SHELF
TIG BASE
W/O RIVNUTS
RIVNUT
TIG BASE
W/O RIVNUTS
RACK
SHELF
WASHER
#10-32
SCREW
ELECTRICAL INSTALLATION
Racks should be connected only by a qualified electri-
cian. Installation should be made in accordance with
the U.S. National Electrical Code, all local codes and
the information detailed below:
Input Connection
A 2.88” hole is provided for input lines for low voltage
operation (208/230V). All racks except K898-3, -4 are
provided with reducing washers for input lines for high
voltage operation (460/575V). Strain relief connectors
for input cables are not supplied with racks. Make sure
connections are secure and water tight. Ground lead
for rack must accompany input lines.
INSTALLATION
INVERTEC RACKS
- 5 -
Wiring K898-3, -4 Slave Units
The input cables to the slave unit are pre-wired from
the factory for minimal installation. Remove tie-wrap
and uncoil the cables. Feed cables through the close
nipple that connects slave unit to primary unit.
Connect cables to main fuse block in primary unit.
Secure all connections. Connect ground lead
between ground bar of primary and slave units.
The slave unit can be used as a stand alone unit
where the customer is required to supply the racks
main fusing and disconnect. If so, simply remove the
feed through cables in the slave unit and connect the
main input lines. Strain relief connectors and reducing
washers are not supplied with slave units.
Fusing
All racks are shipped without fuses which are sold
separately. All racks accommodate the following
types of fuses.
Qty./Rack Available Fuse Manufacturers
Product K898 K912 Littelfuse Bussman Gould
Power Source 12* 24* JTD LPJ AJT
Rack 3 3 JLLS JJS A6T
* Maximum quantity based on a full rack for 3 phase operation.
Fusing of Products Supported
See Operator’s Manual for each type of power source
for recommended fusing. A 35 amp and 50 amp fuse
is available from the factory, to meet the input require-
ments for all of the Lincoln power sources. See Fuses
in Parts List Section for replacement part numbers.
Products Supported
The products that may be placed into the racks are
listed with approximate weights.
Product Weight
Invertec® V300-PRO (Codes 9825 & up) 64 lb / 29.0 kg
*Invertec V250S 36 lbs/17.0 kg
Pro-Cut® 40 (25 ft. torch) 88 lbs/ 39.9 kg
Pro-Cut 40 (50 ft. torch) 96 lbs/ 43.5 kg
DC TIG Starter 20 lbs/ 9.10 kg
*Requires K934-1 Bracket Kit
Rack Main Fusing
The fuse protection for all racks must not exceed 200
amps. The following table shows the recommended
fusing for racks based on the applied input voltage
and a full rack of Invertec V300-PRO power sources.
Aluminum (4)
Steel (8)
Input Voltage Operation Fusing Fusing
Single Phase 208VAC or 230VAC 200A 200A*
Three Phase 208VAC or 230VAC 150A 200A
Single Phase 460VAC or 575VAC 150A 200A
Three Phase 460VAC or 575VAC 110A 200A
*When Steel Racks are used on single phase low volt-
age (208/230V) only, the Invertec V300-PRO power
sources have reduced output capability at high duty
cycles and maximum output currents. The maximum
number of power sources that can be used at one
time for the most common welding applications is 5 -
6. Exceeding this number may cause the main input
fuses to open.
Fuses listed above are available from the factory.
See Fuses in Parts List Section.
ELECTRICAL
K898 and K912 series of racks are designed to oper-
ate any combination of single phase or three phase
power sources, on 208V, 230V, 460V or 575V opera-
tion. The main disconnect switch is the limiting factor
for maximum input power to the rack, which is 200
amps of service. K898 and K912 series of racks are
designed for the domestic market. For proper fusing
of racks and products supported see above.
LIMITATIONS
When Steel Racks (8) are used on single phase low
voltage (208/230V) only, the Invertec V300-PRO
power sources have reduced output capability at high
duty cycles and maximum output currents. The maxi-
mum number of power sources that can be used at
one time for the most common welding applications is
5 - 6. Exceeding this number may cause the main
input fuses to open.
- 6 -
INVERTEC RACKS
ELECTRIC SHOCK
can kill.
• Do not touch electrically live parts
or electrode with skin or wet
clothing.
• Insulate yourself from work and
ground.
• Always wear dry insulating
gloves.
FUMES AND GASES
can be dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing
zone.
WELDING SPARKS
can cause fire or
explosion
• Keep flammable material away.
• Do not weld on containers that
have held combustibles.
ARC RAYS
can burn.
• Wear eye, ear and body
protection.
OPERATION
OPERATING INSTRUCTIONS
General Warnings
SAFETY INSTRUCTIONS
Observe all Safety Guidelines detailed throughout
this manual. Do not attempt to use this equipment
until you have throughly read this manual and the
manuals for any Lincoln Equipment installed in
this equipment.
WARNING
OPERATION
INVERTEC RACKS
- 7 -
GENERAL DESCRIPTION
K898 Series Aluminum Racks (4)
The K898 series of Invertec racks are compact power
source racks. Up to four or eight power sources can
be powered from a single external power supply
source. K898 series of racks accommodates the
Lincoln family of portable Invertec power sources and
portable Pro-Cut plasma cutters.
The frame is designed with 1/8” wall tubular aluminum
for a rugged lightweight construction. The lightweight
design makes the rack ideal where the number of
power sources required for the job fluctuates and
where portability is important.
The Aluminum Rack (4) is a versatile rack which may
be easily expanded or reduced to meet the require-
ments on the job site.
K898 Series Aluminum Racks (4)
With Main With Factory
Disconnect
Installed 115 V
Product and Main Fusing* Power Pack
K898-1 Yes Yes
K898-2 Yes No
K898-3 No Yes
K898-4 No No
* All units are shipped without fuses which are ordered
separately.
K898-1, -2 Primary Aluminum Rack (4)
with Disconnect
K898-1, -2 are basic aluminum racks with main fusing
and disconnect capability.
K898-3, -4 Aluminum Slave Unit (4)
K898-3, -4 slave units mechanically and electrically
connect with primary racks K898-1, -2 to expand them
into a unit that accommodates up to eight power
sources. Slave units have main disconnect capability
provided by the primary rack (K898-1, -2).
The more economical slave units are also stand alone
racks where the customer is required to provide main
fusing and disconnect for the rack.
K912 Series Steel Rack (8)
The steel racks are economically designed for job
sites where 5 to 8 machines need to be available on
demand. with the optional disconnect and power
pack, electrical hookups and versatility are greatly
enhanced. The steel racks (8) are designed for job
sites where easy portability is not a major concern.
K912 series of racks accommodates the Lincoln fami-
ly of portable Invertec power sources and portable
Pro-Cut plasma cutters.
K912 Series Steel Racks (8)
With Main With Factory
Disconnect
Installed 115 V
Product and Main Fusing* Power Pack
K912-1 Yes Yes
K912-2 Yes No
K912-3 No Yes
K912-4 No No
* All units are shipped without fuses which are ordered
separately.
K912-1, -2 Steel Rack (8) with Disconnect
K912-1, -2 are steel racks with main fusing and dis-
connect capability.
K912-3, -4 Steel Rack (8) without
Disconnect
K912-3, -4 are more economical units where the cus-
tomer is required to provide main fusing and discon-
nect for the rack.
POWER UP PROCEDURE
Recommended procedure for the first time setup at a
job site. Power up the rack in the following sequence.
Step 1
With racks main disconnect “OFF”, turn “OFF” all
power source control switches located on the front of
the rack.
Step 2
Turn “ON” all power sources switches located at the
back or front of each power source.
Step 3
Turn “ON” the rack’s main disconnect located on top
of the rack.
Step 4
Turn “ON” one power source control switch located
- 8 -
INVERTEC RACKS
OPERATION
on the front of the rack. Verify operation of the power
source by listening for fan operation. Turn “OFF” the
power source control switch located on the front of the
rack. Verify operation of remaining power sources in
the same manner.
With all power sources operational, the aluminum rack
or steel rack is ready for use. Each operator indepen-
dently controls their power source with the power
source control switch located on the front of the rack.
See Operating Optional Accessories Section if
you will be using K907-1 Quick Connect Plugs.
TRANSPORTING OR HOISTING RACKS
If the rack needs to be transported in a vehicle or
hoisted to high or low elevations, all power sources
must be firmly secured to the rack per Mounting
Products Supported Section. If hoisting, disconnect
main input lines to rack and output cables of power
sources.
OPERATING OPTIONAL ACCESSORIES
Operating Rack with K907-1 Quick
Connect Plugs
Turn the input power “OFF” at the rack’s power
source control switch, and the power source switch
before attempting to connect or disconnect K907-1
quick connect plugs for that power source.
Do not lay unused quick connect plugs in puddles,
quick connects must be free of dirt and moisture
before the connection is to be made.
Before operating the rack, turn “OFF” the racks
power source control switch for all unused quick con-
nect receptacles.
------------------------------------------------------------------------
WARNING
ACCESSORIES
INVERTEC RACKS
- 9 -
OPTIONAL FIELD INSTALLATION
ACCESSORIES
Options are available on all racks unless otherwise
specified.
K905-1 115V Power Pack
K906-1 Caster Wheel Kit*
K907-1 Quick Connect Plug Kit
K908-1 50 Ft. Primary Cord Extension
* Available on K898 series of aluminum racks (4) only.
K905-1 115V Power Pack
If not purchased already installed, a 115V power pack
is available as a field installed option. The 115V power
pack consist of a step-down transformer delivering
1KVA (10 amps) of power through a weather proof
GFI duplex receptacle. This supplemental power
source is useful for powering additional tools and
equipment.
K906-1 Caster Wheel Kit
K906-1 caster wheel kit is a field installed option.
Caster wheels offer mobility for convenient in-shop
use. K906-1 is available for K898 series of aluminum
racks (4) only.
K907-1 Quick Connect Plug Kit
K907-1 quick connect plugs are a field installed
option. The kit comes with fur sets of quick connect
plugs which makes power source-to-rack power con-
nection quick and easy for four power sources. Two
kits are needed for a steel rack (8). A power source
can be disconnected from the rack for relocation with-
out interrupting the productivity of other operators.
Receptacles mount and hang by a short line cord from
underneath the fuse box. Each mating plug mounts to
a power source line cord. The quick connect plugs
are 3 pole/4 wire plugs, weather sealed for outdoor
use, and mate with a twist lock action.
K908-1 50 ft. Primary Cord Extension
K908-1 is a 50 ft. line cord terminated at each end
with a quick connect to be used in conjunction with
K907-1 quick connect plug kit. K908-1 allows a power
source to be relocated around the job site and still
draw power from one central location.
K943-1 Invertec Mounting Bracket Kit
K934-1 is a field installed option. This kit allows up to
four Invertec V250S machines to be mounted into any
K898 or K912 series of racks.
Weights
Model Type Weight
K905-1 115V Power Pack 31 lbs / 14.0 kg
K906-1 Caster Wheel Kit 13 lbs / 5.9 kg
K907-1 Quick Connect Plug Kit 14 lbs / 6.4 kg
K908-1
50 ft. Primary Cord Extension
24 lbs / 10.9 kg
K934-1
Invertec Rack Mounting
4.5 lbs / 2.1 kg
Bracket Kit
Electrical
K905-1 115V Power Pack
K905-1 115 v power pack provides 1KVA (10 amps)
of auxiliary power and is protected by a 10A circuit
breaker. The power pack is powered by the same
main power supply source that feeds the rack, there-
fore, reconnection of the power pack may be neces-
sary depending on the input voltage applied. When
factory installed, K905-1 is connected for the highest
available input voltage connection. See rack wiring
diagram for reconnection.
K907-1 Quick Connect Plug Kit
Maximum ratings for quick connects are 600V @ 50
amps of service. Fuse power sources for 50A maxi-
mum for low voltage operation when using quick con-
nect plugs.
- 10 -
INVERTEC RACKS
NOTES
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- 12 -
INVERTEC RACKS
PARTS
GENERAL ASSEMBLY
K898 SERIES ALUMINUM RACKS (4)
Qty Per Pack
Item # Part Description Part No. K898-1 K898-2 K898-3 K898-4
1 Rack Frame S20890-1 1111
2 Enclosure Sides S20890-3 1100
3 Enclosure Sides S20890-4 0011
4 Enclosure Lid S20890-6 1100
5 Enclosure Lid S20890-7 0011
6 Main Disconnect S20890-10 1100
7 Main Disconnect Handle S20890-11 1100
8 Main Disconnect
Handle Shaft (not shown) S20890-12 1100
9 Left Skid S20890-13 1111
10 Right Skid S20890-14 1111
11 200A Fuse Block S20890-15 3300
12 60A Fuse Block S20890-16 4444
13 4-1 Distributor Block S20890-17 1111
14 1” Cord Connector (not shown) S20890-20 4444
15 13 Space Ground Bar S20890-21 1111
16 Main Ground Lug (not shown) S20890-22 1111
17 60A Power Source Switch S20030-1 4444
18 Power Source Switch Guards S20890-23 4444
19 3” Lift Bail Cover Seal (not shown) S12934-1 1111
20 2.5” - 1.5” Reducing Washer (not shown) S20890-25 0022
21 Nameplate (not shown) S20890-26 1111
22 Warning Decal (not shown) M16196 1111
23 Warning Decal (not shown) T13259 1111
24 Warning Decal (not shown) S20890-28 1111
25 Ground Symbol Decal (not shown) T13260-4 1111
26 3” Hole Plug (not shown) S20890-29 1111
27 1.5” Close Nipple (not shown) S20890-31 0011
28 1.5” Neoprene Lock Nut (not shown) S20890-32 0022
29 1.5” Steel Lock Nut (not shown) S20890-33 0022
30 1/4 - 20 x .85” Rod Coupling (not shown) S20890-34 0066
31 Wire Ferrules (not shown) S20890-35 16 16 16 16
32 Plastic Insulating Bushing S20890-19 0022
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- 14 -
INVERTEC RACKS
PARTS
GENERAL ASSEMBLY
K912 SERIES STEEL RACKS (8)
Qty Per Pack
Item # Part Description Part No. K912-1 K912-2 K912-3 K912-4
1 Rack Frame S20890-2 1111
2 Enclosure Sides S20890-5 1111
3 Enclosure Lid S20890-8 1100
Enclosure Lid S20890-9 0011
4 Main Disconnect S20890-10 1100
5 Main Disconnect Handle S20890-11 1100
6 Main Disconnect Handle Shaft (not shown) S20890-12 1100
7 200A Fuse Block S20890-15 3300
8 60A Fuse Block S20890-16 8888
9 8-1 Distributor Block S20890-18 1111
10 1” Cord Connector (not shown) S20890-20 8888
11 13 Space Ground Bar S20890-21 1111
12 Main Ground Lug (not shown) S20890-22 1111
13 60A Power Source Switch S20030-1 8888
14 Power Source Switch Guards S20890-23 8888
15 4” Cover Seal (not shown) S20890-24 1111
17 Nameplate (not shown) S20890-27 1111
18 Warning Decal (not shown) M16196 1111
19 Warning Decal (not shown) T13259 1111
20 Warning Decal (not shown) S20890-28 1111
21 Ground Symbol Decal (not shown) T13260-4 1111
22 Wire Ferrules (not shown) S20890-35 32 32 32 32
PARTS
INVERTEC RACKS
- 15 -
K905-1
115V POWER PACK
FB1
FB2
FB3
FB4
SW1 SW2
SW3 SW4
MAIN
GND BAR
GFI
LIFT
BALE
CB1
PL1
111222 444333
PRI
T1
SEC
115V
X1
X2 X3
H1H2
H3H4H5
SWITCH
BLOCK
DISTRIBUTION
MAIN
FUSE BLOCK
1
2
5
3
4
Item No. Part Description Part No.
1 1KVA Transformer S20890-50
2 Ground Fault Receptacle S20890-51
3 GFI Cover S20890-52
4 Red Pilot Light with
Tinnerman Clip S20890-53
5 10A Circuit Breaker S20890-54
6 Instructions S20890-55
- 16 -
INVERTEC RACKS
PARTS
K907-1 QUICK CONNECT PLUG KIT or
K908-1 50 FT. PRIMARY EXTENSION
SEALING RING
SEALING RING
COLLAR
12
3
4
Item No. Part Description Part No.
1 3 Pole 4 Wire Plug S20890-70
2 3 Pole 4 Wire Receptacle S20890-71
3 Plug Boot with Sealing Ring
and Collar S20890-72
4 Receptacle Boot with
Sealing Ring S20890-73
5
K907 - 1 36” Cord” Cord (not shown)
S20890-74
6 K908-1 50 ft. Cord (not shown) S20890-75
7 K907-1 Instructions S20890-76
8 K908-1 Instructions S20890-77
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Lincoln Electric Invertec Racks Operating instructions

Lincoln Electric
Brand
Lincoln Electric
Model
Invertec Racks
Category
Welding System
Type
Operating instructions
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