Lincoln Na5 Service Manual

							NA-5
AUTOMATIC WELDING SYSTEMS
SERVICE MANUAL
Sales and Service through Subsidiaries and Distributors Worldwide
22801 St. Clair Ave. Cleveland, Ohio 44117-1199  U.S.A. Tel. (216) 481-8100
Worlds Leader in Welding and Cutting Products Premier Manufacturer of Industrial Motors
SVM131-A 
July, 1997
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 READ-
ING THIS MANUAL AND THE
SAFETY PRECAUTIONS CON-
TAINED THROUGHOUT. And,
most importantly, think before
you act and be careful.For use with the following models:
NA-5N
NA-5NF
NA-5S
NA-5SF 
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							SAFETYii
FOR ENGINE
powered equipment.
1.a. Turn the engine off before troubleshooting and maintenancework unless the maintenance work requires it to be running.
____________________________________________________ 1.b. Operate engines in open, well-ventilatedareas 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, covers anddevices 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 equip-
ment.
____________________________________________________
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 movingparts.
___________________________________________________
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 con-
trol 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.
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 pur-
chase 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 - Securethem 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.
TheAboveForDieselEnginesTheAboveForGasolineEngines
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							SAFETYiiii
ARC RAYS can burn.
4.a. Use a shield with the proper filter and coverplates 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.
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 andwelding machine in good, safe operating condition. Replacedamaged insulation.
3.g. Never dip the electrode in water for cooling.
3.h. Never sim ultaneously touch electrically “hot” parts of
electrode holders connected to two welders because voltage
between the 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.
3.j. Also see Items 6.c. and 8.
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 keepfumes 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 below Threshold Limit Values (TLV)
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.
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 
toform  phosgene,  a  highly  toxic  gas,  and  other  irritating 
products.
5.c. Shielding gases used for arc welding can displace air and cause injury or death. Always use enough ventilation,
especially in confined areas, to insure breathing air is safe.
5.d. 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.e. Also see item 1.b.
Mar ‘95
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							SAFETYiiiiii
FOR ELECTRICALLY
powered equipment.
8.a. Turn off input power using the disconnectswitch 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 tophysical 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 procedureswill not cause flammable or toxic vapors from substances
inside. They can cause an explosion even thoughthey have
been “cleaned”. For information, purchase “Recommended
Safe Practices for the 
Preparationfor 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 oilfree 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.
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							SAFETYiviv
PRÉCAUTIONS DE SÛRETÉ
Pour votre propre protection lire et observer toutes les instructions
et les précautions de sûreté specifiques qui parraissent dans c\
e
manuel aussi bien que les précautions de sûreté générales suiv-
antes:
Sûreté Pour Soudage A L’Arc1. Protegez-vous contre la secousse électrique: a. Les circuits à l’électrode et à la piéce sont sous tensio\
nquand la machine à souder est en marche. Eviter
toujours tout contact entre les parties sous tension et
la peau nue ou les vétements mouillés. Porter des
gants secs et sans trous pour isoler les mains.
b. Faire trés attention de bien s’isoler de la masse quand on soude dans des endroits humides, ou sur un
plancher metallique ou des grilles metalliques,
principalement dans  les positions assis ou couché
pour lesquelles une grande partie du corps peut être
en contact avec la masse.
c. Maintenir le porte-électrode, la pince de masse, le câble de soudage et la machine à souder en bon et sûr
état defonctionnement.
d. Ne jamais plonger le por te-électrode dans l’eau pour le refroidir.
e. Ne jamais toucher simultanément les parties sous tension des porte-électrodes connectés à deux
machines à souder parce que la tension entre les deux
pinces peut être le total de la tension à vide des deux
machines.
f. Si on utilise la machine à souder comme une source de courant pour soudage semi-automatique, ces
precautions pour le porte-électrode s’applicuent aussi
au pistolet de soudage.
2. Dans le cas de travail au dessus du niveau du sol, se protéger contre les chutes dans le cas ou on recoit un choc. Ne jamais
enrouler le câble-électrode autour de n’importe quelle partie
du corps.
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,\
 donc:
a. Utiliser un bon masque avec un verre filtrant approprié ainsi qu’un verre blanc afin de se protéger les yeux du ray-
onnement de l’arc et des projections quand on soude ou
quand on regarde l’arc.
b. Porter des vêtements convenables afin de protéger la peau de soudeur et des aides contre le rayonnement de
l‘arc.
c. Protéger l’autre personnel travaillant à proximité au soudage à l’aide d’écrans appropriés et non-inflammables.
4. Des gouttes de laitier en fusion sont émises de l’arc de soudage. Se protéger avec des vêtements de protection libres
de l’huile, tels que les gants en cuir, chemise épaisse, pan-
talons sans revers, et chaussures montantes.
5. Toujours porter des lunettes de sécurité dans la zone desoudage. Utiliser des lunettes avec écrans lateraux dans les
zones où l’on pique le laitier.
6. Eloigner les matériaux inflammables ou les recouvrir afin de prévenir tout risque d’incendie dû aux étincelles.
7. Quand on ne soud e pas, poser la pince à une endroit isolé
de la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque d’incendie.
8. S’assurer que la masse est connectée le plus prés possible de la zone de travail qu’il est pratique de le faire. Si on
place la masse sur la charpente de la construction ou
d’autres endroits éloignés de la zone de travail, on
augmente le risque de voir passer le courant de soudage
par les chaines de levage, câbles de grue, ou autres
circuits. Cela peut provoquer des risques d’incendie ou
d’echauffement des chaines et des câbles jusqu’à ce qu’ils
se rompent.
9. Assurer une ventilation suffisante dans la zone de soudage. Ceci est particuliérement important pour le soudage de
tôles galvanisées plombées, ou cadmiées ou tout autre
métal qui produit des fumeés toxiques.
10. Ne pas souder en présence de vapeurs de chlore provenant d’opérations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de l’arc peuvent réagir avec les
vapeurs du solvant pour produire du phosgéne (gas
fortement toxique) ou autres produits irritants.
11. Pour obtenir de plus amples renseignements sur la sûreté, voir le code “Code for safety in welding and cutting” CSA
Standard W 117.2-1974.
PRÉCAUTIONS DE SÛRETÉ POUR
LES MACHINES À SOUDER À
TRANSFORMATEUR ET À
REDRESSEUR
1. Relier à la terre le chassis du poste conformement au code del’électricité et aux recommendations du fabricant. Le dispositif
de montage ou la piece à souder doit être branché à une
bonne mise à la terre.
2. Autant que possible, I’installation et l’entretien du poste seront effectués par un électricien qualifié.
3. Avant de faires des travaux à l’interieur de poste, la debranch- er à l’interrupteur à la boite de fusibles.
4. Garder tous les couvercles et dispositifs de sûreté à leur place.
Mar. ‘93
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							v
v
NA-5
MASTER TABLE OF CONTENTS FOR ALL SECTIONS
PageSafety  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . . . . . . . . i-iv
Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . . . . . Section A
Technical Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 A-2
Mechanical Installation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 A-4
Electrical Installation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . A-6
Electrode Polarity   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . A-8
Power Source Connection Diagrams   . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Operating Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . Section B Safety Precautions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . B-2
Operator’s Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . B-2
Controls and Their Functions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Setup Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . B-4  
Starting and Stopping Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5 
Setting Travel Starting and Stopping  . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6 
Voltage Control Response  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Automatic Shutdown   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . B-10
Cold Start Circuitry  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . B-11
Security of Weld Procedure Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12
Accessories  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . . . . Section C General   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . . . . . C-2
Listing of Accessories   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . C-3
Maintenance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . . . . Section D Control Box   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . . D-2
Welding Head   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . D-3
Optional Features   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . D-6
Theory of Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . Section E General Description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 E-2
Input Power Circuits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 E-2
Power and Voltage Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3
Control, Logic and Procedure Boards  . . . . . . . . . . . . . . . . . . . . . . . . E-4
Optional start, Crater Fill and Weld Timer Boards  . . . . . . . . . . . . . . . E-5
SCR Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . E-6
Troubleshooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . Section F
Electrical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section G
Parts Listing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . .        P-135
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							NOTESvivi
NA-5Return to Master TOCReturn to Master TOCReturn to Master TOC Return to Master TOC 
						

							TABLE OF CONTENTS
- INSTALLATION SECTION - 
NA-5
Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . . . . . . . Section A
Technical Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Mechanical Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4 Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . . A-4
Control Box Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Welding Head Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Electrical Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 A-6 Input Power Requirements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Control Box to Welding Head Connections  . . . . . . . . . . . . . . . . . A-6
Power Supply to Control Box Connections  . . . . . . . . . . . . . . . . . A-7
Electrode Polarity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 . . A-8
Power Source Connection Diagrams  . . . . . . . . . . . . . . . . . . . . . . . . A-8 Figure A.8 — Connection of NA-5 (All) to a DC-600  . . . . . . . . . . A-9
Figure A.9 — Connection of NA-5 (All) to a DC-650 Pro  . . . . . . . A-10
Figure A.10 — Connection of NA-5 (All) to a R3S-400, -600       or -800 with no Line Voltage Compensator  (Obsolete)  . . . . . . A-11
Figure A.11 — Connection of NA-5 (All) to a SAM-400 Motor Generator or Engine Welder  . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
Figure A.12 — Connection of NA-5 (All) to a SAM-650  Engine Welder  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
 A-13
Figure A.13 — Connection of NA-5 to DC-1000 or DC-1500  . . . . A-14
Figure A.14 — Connection of NA-5 to DC-400 or CV-400  . . . . . . A-15
Section ASection A
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							A-2INSTALLATIONA-2
NA-5
TECHNICAL SPECIFICATIONS – NA-5
MINIMUM ELECTRICAL INPUT REQUIREMENTS115 VAC @ 3 amps 50/60 Hz power
REQUIRED WELDING POWER SOURCE
NA-5 DC Constant Voltage
WIRE FEED SPEED and GEAR RATIOSFEED SPEED RANGE MAX. WIRE SIZE in. (mm)
GEAR RATIO in./min (m/min) CORED WIRE SOLID WIRE
21:1 100 - 2070 (2.54 - 52.6) 0.052 (1.3) 0.052 (1.3)
57:1 38 - 7.78 (0.96 - 19.8) 3/32 (2.4) 1/16 (1.6)
95:1 22 - 456 (0.56 - 11.6) 5/32 (4.0) 1/8 (3.2)
142:1 15 - 300 (0.38 - 7.62)  5/32 (4.0) 7/32 (5.6)
PHYSICAL DIMENSIONS
LENGTH WIDTH HEIGHT WEIGHT
MODEL in. (mm) in. (mm) in. (mm) lbs (kg)
NA-5 Control Box 9.02 (229) 17.87 (454) 15.05 (382) 30 (13)
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							INSTALLATIONA-3A-3
NA-5
FIGURE A.1 – BASIC CONTROL AND WIRE DRIVE SYSTEM.
CONTROL  BOXHEAD MOUNTING PARTS
 (WITH INSULATION
 AND HARDWARE)
WIRE
STRAIGHTENER
CROSS
SEAM
ADJUSTER
CONTACT
ASSEMBLY
(OPTIONAL)
GEAR  BOX
4 FT  (1.2 M)  CABLE
(DRIVE  MOTOR  TO
 CONTROL  BOX)
4 FT  (1.2 M)  ELECTRODE  CABLES
 [(TWO 4/0)  CONTACT  ASSEMBLY
 TO CONTROL BOX]


 

MOTOR
CONTROL
CABLE
 TO
POWER
SOURCE
TACHOMETER
 CABLE
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