Lincoln Electric IM279 User Manual

Operator’s Manual

RETURN TO MAIN MENU

LT-7 Lightweight Tractor

For use with machines having Code Numbers:

K227, K395 and K395-1

Save for future reference

Date Purchased

Code: (ex: 10859)

Serial: (ex: U1060512345)

IM279 | Issue D ate Sept-13

© Lincoln Global, Inc. All Rights Reserved.

Register your machine:

www.lincolnelectric.com/register

Authorized Service and Distributor Locator:

www.lincolnelectric.com/locator

THANK YOU FOR SELECTING

AT ALL

TIMES.

SPECIAL SITUATIONS

Additional precautionary measures

A QUALITY PRODUCT BY
LINCOLN ELEC TRIC.

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.

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 thoughtful 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.

WARNING

This statement appears where the information must be followed
exactly to avoid serious personal injury or loss of life.

CAUTION

This statement appears where the information must be followed to
avoid minor personal injury or damage to this equipment.

KEEP YOUR HEAD OUT OF THE FUMES.

DON’T get too close to the arc. Use

corrective lenses if necessary to
stay a reasonable distance away
from the arc.

READ and obey the Material Safety

Data Sheet (MSDS) and the warning
label that appears on all containers
of welding materials.

USE ENOUGH VENTILATION or

exhaust at the arc, or both, to keep
the fumes and gases from your breathing zone and the general area.

IN A LARGE ROOM OR OUTDOORS, natural ventilation may be

adequate if you keep your head out of the fumes (See below).

USE NATURAL DRAFTS or fans to keep the fumes away from your

face.

If you de velop unusual symptoms, see your supervisor. Perhaps the
welding atmosphere and ventilation system should be checked.

WEAR CORRECT EYE, EAR & BODY PROTECTION

PROTECT your eyes and face with welding helmet

properly fitted and with proper grade of filter plate
(See ANSI Z49.1).

PROTECT your body from welding spatter and arc

flash with protective clothing including woolen
clothing, flame-proof apron and gloves, leather
leggings, and high boots.

PROTECT others from splatter, flash, and glare with

protective screens or barriers.

IN SOME AREAS, protection from noise may be

appropriate.

BE SURE protective equipment is in good condition.

Also, wear safety glasses in work area

DO NOT WELD OR CUT containers or materials which previously had

been in contact with hazardous substances unless they are properly
cleaned. This is extremely dangerous.

DO NOT WELD OR CUT painted or plated parts unless special

precautions with ventilation have been taken. They can release highly
toxic fumes or gases.

PROTECT compressed gas cylinders from excessive heat, mechanical

shocks, and arcs; fasten cylinders so they cannot fall.

BE SURE cylinders are never grounded or part of an electrical circuit.
REMOVE all potential fire hazards from welding area.
ALWAYS HAVE FIRE FIGHTING EQUIPMENT READY FOR

IMMEDIATE USE AND KNOW HOW TO USE IT.

SECTION A:

Diesel Engines

Gasoline Engines

WARNINGS

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituents are known
to the State of California to cause cancer, 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.

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.

SAFETY

1.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.

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.

1.h. To avoid scalding, do not remove the radiator
pressure cap when the engine is

hot.

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

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
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.

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.

3

SAFETY

ELECTRIC SHOCK
CAN KILL.

3.a. The electrode and work (or ground) circuits are
electrically “hot” when the welder is on. Do
not touch these “hot” parts with your bare skin
or wet clothing. Wear dry, hole-free gloves to insulate hands.

3.b. Insulate yourself from work and ground using dry insulation.
Make certain the insulation is large enough to cover your full area
of physical contact with work and ground.

In addition to the normal safety precautions, if
welding must be performed under electrically
hazardous conditions (in damp locations or while
wearing wet clothing; on metal structures such as
floors, gratings or scaffolds; when in cramped
positions such as sitting, kneeling or lying, if there
is a high risk of unavoidable or accidental contact
with the workpiece or ground) use the following
equipment:

• Semiautomatic DC Constant Voltage (Wire) Welder.

• DC Manual (Stick) Welder.

• AC Welder with Reduced Voltage Control.

3.c. In semiautomatic or automatic wire welding, the electrode,
electrode reel, welding head, nozzle or semiautomatic welding
gun are also electrically “hot”.

3.d. Always be sure the work cable makes a good electrical
connection with the metal being welded. The connection should
be as close as possible to the area being welded.

3.e. Ground the work or metal to be welded to a good electrical (earth)
ground.

3.f. Maintain the electrode holder, work clamp, welding cable and
welding machine in good, safe operating condition. Replace
damaged insulation.

3.g. Never dip the electrode in water for cooling.

3.h. Never simultaneously touch electrically “hot” parts of electrode
holders connected to two welders because voltage

two can be the total of the open circuit voltage of both
welders.

3.i. When working above floor level, use a safety belt to protect
yourself from a fall should you get a shock.

between the

ARC RAYS CAN BURN.

4.a. Use a shield with the proper filter and cover plates to protect your
eyes from sparks and the rays of the arc when welding or
observing open arc welding. Headshield and filter lens should
conform to ANSI Z87. I standards.

4.b. Use suitable clothing made from durable flame-resistant material
to protect your skin and that of your helpers from the arc rays.

4.c. Protect other nearby personnel with suitable, non-flammable
screening and/or warn them not to watch the arc nor expose
themselves to the arc rays or to hot spatter or metal.

FUMES AND GASES
CAN BE DANGEROUS.

5.a. Welding may produce fumes and gases
hazardous to health. Avoid breathing these
fumes and gases. When welding, keep your head out of the fume.
Use enough ventilation and/or exhaust at the arc to keep fumes

and gases away from the breathing zone. When welding

with electrodes which require special ventilation
such as stainless or hard facing (see instructions
on container or MSDS) or on lead or cadmium
plated steel and other metals or coatings which
produce highly toxic fumes, keep exposure as low
as possible and within applicable OSHA PEL and
ACGIH TLV limits using local exhaust or
mechanical ventilation. In confined spaces or in
some circumstances, outdoors, a respirator may
be required. Additional precautions are also
required when welding on galvanized steel.

5. b. The operation of welding fume control equipment is affected by
various factors including proper use and positioning of the
equipment, maintenance of the equipment and the specific
welding procedure and application involved. Worker exposure
level should be checked upon installation and periodically
thereafter to be certain it is within applicable OSHA PEL and
ACGIH TLV limits.

5.c. Do not weld in locations near chlorinated hydrocarbon vapors
coming from degreasing, cleaning or spraying operations. The
heat and rays of the arc can react with solvent vapors to form
phosgene, a highly toxic gas, and other irritating products.

3.j. Also see It ems 6.c. and 8.

5.d. Shielding gases used for arc welding can displace air and

injury or death. Always use enough ventilation, especially in
confined areas, to insure breathing air is safe.

5.e. Read and understand the manufacturer’s instructions for this

equipment and the consumables to be used, including the
material safety data sheet (MSDS) and follow your employer’s
safety practices. MSDS forms are available from your welding
distributor or from the manufacturer.

5.f. Also see item 1.b.

4

cause

SAFETY

WELDING AND CUTTING
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 circuits. This can create fire
hazards or overheat lifting chains or cables until they fail.

6.h. Also see item 1.c.

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.

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.

6.I. Read and follow NFPA 51B “ Standard for Fire Prevention During
Welding, Cutting and Other Hot Work”, available from NFPA, 1
Batterymarch Park, PO box 9101, Quincy, Ma 022690-9101.

6.j. Do not use a welding power source for pipe thawing.

8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.

Refer to

http://www.lincolnelectric.com/safety

for additional safety information.

Welding Safety
Interactive Web Guide
for mobile devices

5

LT-7 Lightweight Tractor

NOTES

Connection of LT-7 to CV-655, DC-600, DC655 and Flextec 650

P-117-AP-117-A

RETURN TO MAIN INDEX

SEC. M7

LT-7

K227 OR K395

LIGHTWEIGHT TRACTOR

PARTS LIST

Model Index

General Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-C

Head Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-D

Wire Straightener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-F

Front Wheel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-G

K229, K230 & K232 Optional Guide Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-J

Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-L

Internal Controls Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-M

Vertical Head Lift Adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-O

K277-1 and -2 Tiny Twinarc Adapter Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-P

K285 Concentric Flux Cone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-114-J

K231 Nozzle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-101-M

K148 Fully Automatic Nozzles and Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-101-K

K224 Solid-State Remote Field Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-114-H

K129 Sub-Arc Twinarc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-101-G

K281 Wire Straightener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-101-G.2

K396 Track Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-117-R

Conversion Kit (To convert K227 Tractor to Track Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Order K400

06-02-2006

GENERAL ASSEMBLY

19

14

7

20

18

4

15

21

5

16A

3

16B

17

6

1

11

2

10

12

13

9C

9B

9E

9D

9A

9

(ONE OF THREE)

P-117-CP-117-C

06-06-2001

# Indicates a Change This Printing

P-117-C.1P-117-C.1

ITEM DESCRIPTION PART NO. QTY.

1 Button Head Socket Screw T11551-2 1 X
2 Wheel Scraper T8456 2 X
3 Cross Beam (D1) (Std. Tractor) M12673 1 X
3

Cross Beam Assembly, Includes: (Track Model Only)

Mast Pad S15808-1 1 X

Arm M12673 1 X
4 Cross Seam Assembly (F3) M12671 1 X
5 Cam Block Spacer Pad T13673 1 X
6 Reed Switch Assembly (3CR), Includes: S13920-1 1 X

Reed Switch S12334-15 1 X

Energizer M11688 1 X
7 Shunt M12667 1 X
8 Cable Strain Relief Ring (A4) (Not Shown) S15181 1 X
9

Tractor Drive Assembly, Includes: (A1) (Below Code 9100)

9

Tractor Drive Assembly, Includes: (A1) (Above Code 9100)
9A Drive Motor and Gear Box (Below Code 9100) M12348-1
9B Brush and Spring Assembly M12348-1B 2 X
9C Brush Cap M12348-1C
9A Drive Motor and Gear Box (Above Code 9100) M15340 1 X
9B Brush and Spring Assembly M15340-B 2 X
9C Brush Cap M15340-C 2 X
9D Pinion Gear S15208 1 X
9E Roll Pin T9967-3 1 X
10 Drive Gear Guard M12865 1 X

11 Frame Assembly (Below Code 7675) L5279 1 X

11 Frame Assembly (Above Code 7675) L5685 1 X
12 Reel Side Shield S15210 1 X
13 Reel Bottom Shield (A7) S15216 1 X
14 Nozzle Cable (Std. Tractor) M12700-1 1 X
14 Nozzle Cable (Track Model Only) M12700-2 1 X
15 Mast (F1) (Below Code 8000) S15814 1 X
15

Vertical Head Lift Adjuster (F1) (Above Code 8000)

16 Clamp Arm (D2), Includes:Hardware (Not Shown) S15194 1 X
16A Upper Jaw and Arm M12672 1 X
16B Lower Jaw S15193 1 X
17 Front Wheel Assembly (D) (Std. Tractor) M12669 1 X
17 Front Wheel Assembly (D) (Track Model Only) M14813 1 X

18 Shunt Cover L5278 1 X
19 Shunt Insulation S15170 1 X
20 Shunt Shield S15430 1 X
21 Steering Extension Arm T13733 1 X

Vertical Head Lift Adjuster Parts See P-117-O

Wheel Assembly Parts See P-117-G

S17630 1 X

M12682 1 X
M15341 1 X

ø

M13334-1 1 X

ø

1X

2X

123456789

#

ø This part is obsolete and no longer available.

10-28-2003

13

16

15

14

12A

12B

3

2

1B

10

17A

17B

7

8

9

6

4

5

4

9

8

7

11A

11B

10

1A

11

11

18

19

P-117-C.2P-117-C.2

General Assembly

(TWO OF THREE)

11-18-2005

# Indicates a Change This Printing

P-117-C.3P-117-C.3

ITEM DESCRIPTION PART NO. QTY.

1A Clutch Handle (A2) T9781-43 1 X
1B Knob T10889 1 X
2 Clutch Spring Cam T13728 1 X
3 Clutch Fork Assembly S15164 1 X
4 Roll Pin T9967-6 2 X
5 Drive Gear Key M8776-83 1 X
6 Drive Gear S15172 1 X
7 Bearing S16645-2 2 X
8 Wheel Key M8776-84 1 X
9 Axle S15171 1 X
10 Retaining Ring S9776-16 2 X
11 Rear Wheel (A3) (Std. Tractor) S15191 2 X
11 Gear Wheel Assembly, Includes:

(Track Model Only)

S17632 1 X
11A Gear Wheel S17631 1 X
11B Wheel S17635 1 X
12A Clutch Handle (A2) T9781-44 1 X
12B Knob T10889 1 X
13 Flux Hopper Assembly, Includes: (E7) M12691 1 X

Flux Flow Valve S15223 1 X
14 Wire Straightener (E3) & Wire Straightener Parts See P-117-F 1 X
15 Flux Tube and Tip T13835 1 X
16 Pointer Assembly S15287 1 X

Pointer Clamp for K148 Nozzle (Not Shown) S15286-2 1 X
17 Rail Wheel Assembly, Includes: (Track Model Only) S17634-1 1 X
17A Rail Wheel S17633 1 X
17B Wheel S17635 1 X
18 Bumper Handle Assembly, Includes: M13051 1 X
19 Handle S15659 1 X

123456789

#
#

11-18-2005

General Assembly

5

1

8

11

10

12

13

2

9

6

7

14

4

3

Three of Three

P-117-C.4P-117-C.4

12-28-98

# Indicates a Change This Printing

P-117-C.5P-117-C.5

Use only the parts marked “X” in the column under the
heading number called for in the model index page.

ITEM DESCRIPTION PART NO. QTY.

1 Electrode Feed Tube S14004-2 1 X
2 Electrode Take-Off Arm S15195 1 X
3 Control Box (C) See P-117-L 1 X
4 Control Box Support (C4) (Below Code 7675) S15242 1 X
4 Control Box Support (C4) (Above Code 7675) S15820 1 X
5 Wire Reel (B3) L4604 1 X

6 Reel Mount Assembly (B1) (Below Code 7675) M12787
6 Reel Mount Assembly (B1) (Above Code 7675) M13255 1 X
7 Reel Top Shield Support S15446 1 X
8 Reel Top Shield (Below Code 7675) T13811 1 X
8 Reel Top Shield (Above Code 7675) T14021 1 X
9 Insulating Washer S10773-47 1 X
10 Wire Reel Shaft S15199 1 X
11 Roll Pin T9967-9 1 X
12 Plain Washer S9262-26 1 X
13 Insulating Tube T12478-5 1 X
14 Control Box Mount Extension S15184-1 1 X

ø

1X

123456789

#

ø This part is obsolete and no longer available.

07-19-2001

20

18

1A

30

11B

26

11A

11C

11D

11E

15

21

14

13

16

}

19

17

22

12

5

3

4

2

1B

27

8

6

10

7

10

6

9

23A

23D

23B

23E

24

29

28

23C

HEAD ASSEMBLY

P-117-DP-117-D

12-28-98

# Indicates a Change This Printing

P-117-D.1P-117-D.1

ITEM DESCRIPTION PART NO. QTY.

1A Gear Box Assembly, Includes: L5504-1 1 X

Assembly without Motor L5504-1A 1 X

1B Drive Motor Assembly, Includes: M12711 1 X

Drive Motor NSS 1X
Brush 8 Spring Assembly M13274-6 2 X

Brush Cap M13274-7 2 X
Pinion Gear T13183 1 X
Roll Pin T9967-33 1 X

Groove Pin, Motor to Gear Box T10580-6 1 X
Socket Head Screw, Motor to Gear Box T9447-7 2 X

2 Drive Roll S14541-3/16 2 X
3 Sems Screw T10082-26 1 X
4 Collar Assembly T12341 1 X
5 Key M8776-82 1 X
6 Nozzle Clip T13715 2 X
7 Outgoing Guide Tube S15230-3/16 1 X
8 Nozzle Mount Pad S15209 1 X

9 Socket Head Cap Screw T9447-9 2 X
10 5/16-18 x 1.00 Hex Head Screw CF000062 2 X
11A Hex Head Screw 5/16-18 x 1.25 2 X
11B
11B Insulating Tube, Pivot Arm Mounting T7305-43 2 X
11C
11C Insulating Washers, Pivot Arm Mounting S10773-58 2 X
11D Flat Washer S9262-121 2 X
11E Lock Washer E106A-14 2 X
12 Socket Set Screw S11604-8 4 X
13 Pivot Pin T13271-1 1 X
14 Idle Roll Assembly S16666-1 1 X
15 Thread Forming Screw S9225-21 1 X
16 Spring T10247-11 1 X
17 Hex Nut 5/16-18 1 X
18 Incoming Guide Tube
19 Idle Roll Pull Arm S14533 1 X
20 Straightener Mounting Block T13672 1 X
21 Idle Roll Arm Bracket T14443 1 X
22 Flat Washer S9262-121 1 X
23A Hex Head Screw
23B Insulating Washer S10773-58 2 X
23C Insulating Tube T7028-134 2 X
23D Lock Washer E106A-14 2 X
23E Flat Washer S9262-121 2 X
24 Fillet-Lap Attachment, Mounting Plate S15398 1 X

26 Pivot Plate and Arm Assembly (Code 7429 Only) S15220
26 Pivot Plate and Arm Assembly S15220-1 1 X
27 Spacer S10153-37 1 X
28 Socket Head Cap Screw T9447-10 1 X
29 Insulation T13695 1 X
30 Insulation, Pivot Arm Mounting (Code 7429 Only) S15217
30 Insulation, Pivot Arm Mounting S15217-1 1 X

Insulating Tube, Pivot Arm Mounting (Code 7429 Only)

Insulating Washers, Pivot Arm Mounting (Code 7429 Only)

T7305-41

S10773-41 2 X

S15229-3/16

5/16-18 x 1.25

ø

ø

ø

2X

1X

2X

1X

1X

123456789

#

ø This part is obsolete and no longer available.

NSS

- Not sold separately

11-18-2005

WIRE STRAIGHTENER

1

P-117-FP-117-F

2

3

4

5

6

M12680
3-28-75P

# Indicates a Change This Printing

ITEM DESCRIPTION PART NO. QTY.

Wire Straightener, Includes All Below: M12680 1
1 Roll Pin T9967-5 1
2 Screw Bushing T10585 1
3 Slide Screw Assembly S10159 1
4 Body Assembly M12679 1
5 Wire Guide Wheel M9300-55 2
6 Hex Head Bolt 5/16-18 x 1.25 1
7 Slide Bushing T10584 1
8 Flat Washer S9262-140 2
9 Lock Washer E106A-14 1

10 Hex Nut 5/16-18 1

7

8

9

10

123456789

#

#

12-28-98

FRONT WHEEL ASSEMBLY

P-117-GP-117-G

# Indicates a Change This Printing

ITEM DESCRIPTION PART NO. QTY.

Front Wheel Assembly, Includes: (Std. Tractor) M12669 1 X

Front Wheel Assembly, Includes: (Track Model Only)
1 Hex Head Screw 3/8-16 x .875 2 X
2 Retaining Ring S9776-7 1 X
3 Bearing S11099-2 1 X
4 Steerage Cam S15162 1 X
5 Cam Block (Upper) S15163 1 X
7 Bearing, Bronze S11099-2 1 X
8 Plain Washer S9262-41 1 X

10 Hex Nut (Not Shown) 5/16-18 1 X

11 Bearing (Std. Tractor Only) S11099-5 2 X
12 Sleeve S10918-52 1 X
13 Wheel (Std. Tractor) S15191 1 X
13 Wheel (Track Model Only) Includes: S17634-2 1 X

13A Rail Wheel S17633 1 X
13B Wheel S17635 1 X
13C Bearing S11099-5 2 X

14 Roll Pin T9967-31 1 X
15 Steerage Plunger T13665 1 X
16 Compression Spring T11862-27 1 X
17 Set Screw S11604-26 1 X
18 Plunger & Wheel Housing Assembly S15186 1 X
19 Lock Washer (Not Shown) E106A-14 2 X
20 Hex Head Screw (Not Shown) 5/16-18 x 2.75 1 X
21 Instruction Plate S15292 1 X
22 Drive Screw S8025-51 4 X

M14813 1 X

123456789

12-28-98

NOTES

OPTIONAL GUIDES

P-117-JP-117-J

# Indicates a Change This Printing

ITEM DESCRIPTION PART NO. QTY.

Butt Guide Kit, Includes: K230 1

Guide Wheel Bracket S15259 1
Guide Wheel S7393 2
Retaining Ring S9776-49 2

Flat Fillet Guide Kit, Includes: K229 1

Reel Adapter Bracket M12709 1
Rear Support Assembly, Includes: S15279 1

Bracket M 12704 1
Wheel T14494 1

Front Support Assembly, Includes: S15278 1

Bracket S15232 1
Wheel T14494 1

Horizontal Fillet-Lap Guide Kit, Includes: K232 1

Front Guide Assembly, Includes: M13958 1
1 Attachment Arm S15248 1
2 Slide Arm and Yoke Pivot S15251 1
3 Wing Screw T9078 1
5 Fillet Guide Wheel Assembly S16743 1
6 Wing Screw T9078-1 2
8A Wing Nut T9968-1 1
8B Lap Guide Wheel Assembly S15285 1
8C Wing Screw T9078 2

Tension Spring and Hook (Not Shown) T13731 1

Rear Support, Includes: (Not Shown S15280 1

Arm S15231 1
Wheel T14494 1

123456789

12-28-98

CONTROL BOX

4

2

5K

10K

11

1

3

5-1

5P

6

7

7

8

9

10P

10-1

26

26A

26B

21B

24

25

23

22P

20

21A

22K

P-117-LP-117-L

12-28-98

P-117-L.1P-117-L.1

For Codes Below 7900 use Column 1.
For Codes 7900 to 9100 use Column 2.
For Codes 9100 to 13000 use Column 3.

ITEM DESCRIPTION PART NO. QTY.

Complete Control Box Assembly, Includes: (Code 7429 Only)
Complete Control Box Assembly, Includes: L5292-1
Complete Control Box Assembly, Includes: (Std. Tractor)
Complete Control Box Assembly, Includes: (Track Model Only)
Complete Control Box Assembly, Includes: (Std. Tractor)

Complete Control Box Assembly, Includes: (Track Model Only)
A Front Panel Assembly, Includes: M12698
A Front Panel Assembly, Includes: M12698-2 1 • X X X

1 Panel S15245 1 X X X X
2 Voltmeter M10486-3 1 X X X •
2 Voltmeter M21002-1 1 • • • X
3 Circuit Breaker T12287-8 1 X X X X
4 Ammeter M10485-7 1 X X X •

4 Ammeter M21003-2 1 • • • X
5-P Potentiometer T10812-40 1 X X X X
5-K Knob T10491 1 X X X X

5-1 Insulation T12792-1 1 X X X X

6 Control Power Switch T13111 1 X X X X

7 Inch Switch T13541-2 2 X X X X

8 Stop Switch T13541-1 1 X X X X

9 Start Switch T13541-2 1 X X X X

10-P Potentiometer T10812-37 1 X X X X
10-K Knob T10491 1 X X X X
10-1 Insulation T12792-1 1 X X X X

11 Nameplate - VV L5867-1
11

B
B

20 Box S15239 1 X • • •
20 Box S16128 1 • X X X
21 Nameplate (Std. Tractor) M12697 1 X • • •
21 Nameplate (Std. Tractor) M13469-2 1 • X X X
21 Nameplate (Track Model Only) M13469-5 1 • X X X

22-P Travel Speed Potentiometer T10812-71 1 X X X X
22-K Knob T10491 1 X X X X

23 Direction of Travel Switch T13111 1 X • • •
23 Direction of Travel Switch T10800-7 1 • X X X
24 Travel Switch T13543 1 X X X X
25 Circuit Breaker T12287-7 1 X X X X
26 Travel Box Cover S15238 1 X • • •
26 Travel Box Cover S15238-1 1 • X X X

C Internal Control Box Assembly See P-117-M 1 X X X X

Nameplate - CV (Mounts under VV Nameplate)
Travel Control Box Assembly, Includes:
Travel Control Box Assembly, Includes: (Std. Tractor)
Travel Control Box Assembly, Includes: (Track Model Only)

Resistor (Not Illustrated) S10404-73 1 X X X X

Travel P.C. Board (Not Illustrated) Includes: L5302
Travel P.C. Board (Not Illustrated) Includes: L8731-1 1 • X • •
Travel P.C. Board (Not Illustrated) Includes: L7454-1 1 • • X X

Fuse, 1/2 Amp Slo-Blo T10728-14 1 X X • •
Travel P.C. Board Insulation T13711 1 X • • •
Travel P.C. Board Insulation T14189 1 • X X X

For Codes Above 11300 use Column 4.

L5292 1 X • • •

ø

L5878-2 1 • X • •
L5878-4 1 • X • •
L5878-5 1 • • X X
L5878-6 • • X X

ø

ø

L5283-1 1 • X X X
M12696 1 X • • •
M13473-2 1 • X X X
M13473-3 1 • X X X

ø

1X•••

1X•••

1XXXX

1X•••

# Indicates a Change This Printing

123456789

ø This part is obsolete and no longer available.

11-02-2006

INTERNAL CONTROLS ASSEMBLY

18D

18E

18A

18C

18B

2

6

11

11

9B

9

9A

9-1

4

14

1

5

P-117-MP-117-M

For Codes Below 7900 use Column 1.

# Indicates a Change This Printing

For Codes Above 7900 use Column 2.

ITEM DESCRIPTION PART NO. QTY.

C

Internal Control Box Assembly, Includes: (Code 7429 Only)

L5291 1 X •
C Internal Control Box Assembly, Includes: L5291-1 1 X •
C Internal Control Box Assembly, Includes: L5291-4 1 • X

1 Control Box M12685 1 X •
1 Control Box M12685-1 1 • X
2 Resistor, 2 OHM S10404-75 1 X X
4 Reed Switch Assembly, (4CR) Includes: T13708 1 X X

Reed Switch S12334-20 1 X X

5 Terminal Strip S13323-5 1 X X

Number Plate T10726-89 1 X X
6 Resistor, 250 OHM S10404-76 1 X X
9 Control P.C. Board, Includes: (Code 7429 Only) L6958-2 1 X •
9 Control P.C. Board Includes: L6959-2 1 X X
9A Fuse, 1/2 Amp Slo-Blo T10728-14 1 X X
9B Fuse, 2/10 Amp T10728-27 1 X X
9-I Control P.C. Board Insulation (Not Shown) T13707 1 X X
11 Relay, (1 CR and 2 CR) S22182 2 X X
14 Auxiliary Power outlet T13698 1 X X
18 Inner Panel Assembly, Includes: S15235 1 X •
18 Inner Panel Assembly, Includes: S15235-1 1 • X
18A Panel S15244 1 X X
18B Variable Voltage P.C. Board
18C Variable Voltage P.C. Board Insulation T13705 1 X X

L5394-2 (Note A)

18D Logic P.C. Board L5927-1 1 X •
18D Logic P.C. Board L5927-2 1 • X
18E Logic P.C. Board Insulation T13706 1 X X

Insulation (Mounts Under Lead Clamp)

(Not Shown)

T11472-11 1 X X

Note A: L5394 may be used.

123456789

#

#

1XX

#

3-27-2000

K280 VERTICAL HEAD LIFT ADJUSTER

6C

6A

6B

5

15

3

2

1

12

12

11

4

16

{

14

8

9A

9B

13B

13A

7

10

{

9A

9B

13B

13A

(Standard Equipment on LT-7 Tractors Above Code 7948)

P-117-OP-117-O

# Indicates a Change This Printing

ITEM DESCRIPTION PART NO. QTY.

Vertical Head Lift Adjuster, Includes All Below: M13334-1 1 X
1 Mast Core S15931 1 X
2 Barrel and Shaft Assembly S15930 1 X
3 Bearing M9300-97 1 X
4 Mast M13333 1 X
5 Roll Pin T9967-6 1 X
6A Adjusting Knob S15928 1 X
6B Lock Washer E106A-14 1 X
6C 5/16-18 HN CF000029 1 X
7 Mounting Plate S15929 1 X
8 Pressure Plate T14077-1 1 X
9A Bow Washer T10781-5 4 X
9B Socket Head Cap Screw T9447-27 2 X

10 Torx Button Head Screw S25930-1 1 X

11 Slide Pad S15927 1 X

12 #8-32 x 1.00 Slotted Flat Head Screw CF000037 2 X
13A 3/8-16 x 2.00 HHCS CF000071 2 X
13B Lock Washer T9860-4 2 X

14 Pressure Slide T14077-2 1 X

15 Retaining Ring S11964-2 1 X

16 “T” Locking Screw T14078 1 X

123456789

06-02-2006

K277-1 AND -2 TINY TWINARC ADAPTER KITS

1

22

21

20

17

16

15

10

14

2

3

4

5

6

7

8

13

12

11

9

P-117-PP-117-P

6-26-2000

# Indicates a Change This Printing

P-117-P.1P-117-P.1

ITEM DESCRIPTION PART NO. QTY.

1 Reel Adapter

(1)

M13396 1
2 Front Stabilizer Wheel Attachment S15857 1
3 Rear Wheel Support Arm S15744 1
4 Front Support Wheel (45˚ Flat Fillet) S16025 1
5 Rear Support Wheel (Flat Fillet)
6 Travel Motor Extension Cable

(1)

(1)

S15279

S15965 1
7 Flux Tube T10642-34 1
8 Hose Clamp T12929 1
9 Wire Guide Tube (5 Ft. Length) S14004-3 1

Nozzle Assembly, Includes Items 10 & 11 M11609 1

10 Nozzle Body S13164 1

11 Nozzle Collar S13157 1
12 Contact Tip (5/64) (Note A) T14050-5/64 2
12 Contact Tip (3/32) T14050-3/32 2
13 Tip Holder, Includes: S15954 1

Nozzle Insert T12576-5 2
14 Guide Tube (5/64 & 3/32) T12507-5/64 2
15 Idle Roll Arm S15769 1
16 Drive Roll (Outside) S15742-2 2
16 Drive Roll (Center) S15742-1 1
17 Outgoing Guide Tube S15770 1
18 Incoming Guide Tube (Not Illustrated) S16464 1
19 Wire Guide Support (Not Illustrated) T14683 1
20 Head Spring Extender T14145 1
21 Twin Reel Mounting Assembly L5629 1
22 Wire Reel L4604 1
23 Slide Bushing (Not Illustrated) S16461 1

Note A: When tip life is limited by tip being fused over,

the use of T14726-5/64 tips may result in
lower overall cost.

(1)

The K277-1 Kit contains all items except 1, 4, 5 and 6.

The K277-2 Kit contains all items shown.

123456789

10-30-2000

# Indicates a Change This Printing

P-101-M.1P-101-M.1

Use only the parts marked “X” in the column under the
heading number called for in the model index page.

ITEM DESCRIPTION PART NO. QTY.

123456789

Nozzle Assembly, Includes Items 110 thru 125 as

appropriate for wire size specified K231* 1 X •

Nozzle Assembly, for LT34 ONLY, Includes Items

110, 111, 118, 121 and 122; Order Items 119,

120, 123, 124 and 125 separately for the

desired wire size M8241-1 2 • X

110 Nozzle Insulator S10493-1 1 X X
111 Nozzle Body S10157 1 X X
111A Roll Pin T9967-10 1 X X
113A Cone Body Assembly, Includes: M8249 1 X •
113B Flux Cone Plug S10138 1 X •
113C Roll Pin T9967-30 1 X •
114 Retaining Nut S10147 1 X •
115 Flux Cone T10575 1 X •
116 Locking Ferrule T10574 1 X •
117 Thumb Screw T9078-1 1 X •
118 Special Socket Head Screw T10570 1 X •
119 Rubber Flux Tube (Not Shown) T10642-1 1 X •
119 Rubber Flux Tube, LT34 Only (Not Shown) T10642-11 1 • X
120 Steel Flux Tube (Not Shown) T6996-9 1 X •
120 Steel Flux Tube, LT34 Only (Not Shown) S10487 1 • X
121 Hex Head Screw - Lead to Nozzle 1/2-13 x 1.50 1 X X
122 Hex Nut - Lead to Nozzle 1/2-13 1 X X
123 Contact Tip - 7/32 Wire Size S10125-7/32 1 X X
123 Contact Tip - 3/16 Wire size S10125-3/16 1 X X
123 Contact Tip - 5/32 Wire Size S10125-5/32 1 X X
123 Contact Tip - 1/8 Wire Size S10125-1/8 1 X X
123

Contact Tip - 3/32 Wire Size; (3/8-24 Thread) Old Style

S8087-3/32 1 X X
123 Contact Tip - 3/32 Wire Size; (5/16-18 Thread) T14050-3/32 1 X X
123

Contact Tip - 5/64 Wire Size; (3/8-24 Thread) Old Style

S8087-5/64 1 X X
123 Contact Tip - 5/64 Wire Size; (5/16-18 Thread)

See Note 1 T14050-5/64 1 X X

124 Adapter for 3/32 and 5/64 S8087 Tips

(With 3/8-24 Female Thread) See Note 2 1 X X

124 Adapter for 3/32 and 5/64 T14050 Tips

(With 5/16-18 Female Thread) S16844 1 X X
125 Nozzle Insert for 3/32 and 5/64 Wire (For NA) S15106-3/32 1 X •
125 Nozzle Insert for 5/64 Wire (For LAF & LT) S12773-3/32 1 X X

Mounting Clip (For Mounting Nozzle on LAF2) T10714
Nozzle Extension (5.38” long) (For 3/32 & Larger Wire)

S12003

ø

2X•

As Req’d

X•

#

* Specify Wire Size

Note 1

When tip life is limited by tip being fused over, the
use of T14726-5/64 Tips may result in a lower
overall cost.

Note 2

This adapter is no longer available, order Adapter
S16844 and the appropriate T14050 Tips or
T14726-5/64 Tip.

10-07-2002

K224 SOLID-STATE REMOTE FIELD CONTROL

1 2 4 5 6

16

12

15

18 19

14

13

11

10

9

87

(DISCONTINUED)

P-114-HP-114-H

L5297
10-2-81Q

# Indicates a Change This Printing

ITEM DESCRIPTION PART NO. QTY.

Solid State Remote Field Control, Includes: K224 1
1 Top Door M10639-4 1
2 Terminal Strip S14530-1 1

Number Plate T10726-90 1
4 Capacitor S10593 1
5 Auto Transformer M12702
6 Box Assembly M12706
7 Transformer S15257
8 Capacitor T11079 1
9 Nameplate M12688 1

10 Polarity Switch S13417

11 Fuse Holder S10433 1

Fuse T10728-8 1

12 Capacitor S13490-1 1
13 Diode T12705-15 1
14 SCR and Heat Sink M13342
15 Control P.C. Board (Code 7359 Only) L5316 1
15 Control P.C. Board (Code 7683 & Above) L5759-1 1
16 Caution Decal T13470 1
18 Choke S14644 1
19 Resistor (Code 7742 & Above) T12731-42F 1

K224 Mounting Angles S12995-1 & 1 ea

S13709

ø
ø

ø

ø

ø

123456789

1
1
1

1

1

#

ø This part is obsolete and no longer available.

01-28-2003

LT-7 Lightweight Tractor

NOTES

LT-7 Lightweight Tractor

NOTES

CUSTOMER ASSISTANCE POLICY

The business of The Lincoln Electric Company is manufacturing and
selling high quality welding equipment, consumables, and cutting
equipment. Our challenge is to meet the needs of our customers and
to exceed their expectations. On occasion, purchasers may ask
Lincoln Electric for advice or information about their use of our
products. We respond to our customers based on the best information
in our possession at that time. Lincoln Electric is not in a position to
warrant or guarantee such advice, and assumes no liability, with
respect to such information or advice. We expressly disclaim any
warranty of any kind, including any warranty of fitness for any
customer’s particular purpose, with respect to such information or
advice. As a matter of practical consideration, we also cannot assume
any responsibility for updating or correcting any such information or
advice once it has been given, nor does the provision of information
or advice create, expand or alter any warranty with respect to the sale
of our products.

Lincoln Electric is a responsive manufacturer, but the selection and
use of specific products sold by Lincoln Electric is solely within the
control of, and remains the sole responsibility of the customer. Many
variables beyond the control of Lincoln Electric affect the results
obtained in applying these types of fabrication methods and service
requirements.

Subject to Change – This information is accurate to the best of our
knowledge at the time of printing. Please refer to
www.lincolnelectric.com for any updated information.