ESAB Linde EH-2 and SH-2 Wire Feeders Instruction manual

 inde Instruction Literature EH-2 and SH-2
FORM 9/56-C
INSTRUCTIONS
and PARTS DATA
for the
inde
PAGE
I. INTRODUCTION. ..coorecaronencons 3
TRADE MARK I DESCRIPTION cree 3
Ш. INSTALLATION ,...onconoronocnonos 8
FH-? and SH-7 IV, OPERATION.....ccccccccececseeteee: 10
V. DISASSEMBLY AND
MAINTENANCE ..,..,......... 11
Cr VI. REPLACEMENT PARTS
INFORMATION uses 17
Be sure this information reaches
the operator. You can ı get pit fe
2
The terms LINDE, UNIONARC, UNIONMELT, and SIGMA are registered trade marks of Unton Carbide Corporation.
Instruction Literature
INSTRUCTIONS
and PARTS DATA
for the
inde
TRADE MARK
EN-2 and SH-2
WIRE FEEDERS
EH-2 and SH-2
FORM 9/56-C
IX,
Ш.
ГУ.
УТ.
РАСЕ
INTRODUCTION. sinus. 3
DESCRIPTION... ren 3
ПЧ5ТАСГАТЮМ ....,.. зе еьанань» 8
OPERATION... 10
DISASSEMBLY AND
MAINTENANCE... 11
REPLACEMENT PARTS
INFORMATION... 17
Be sure this information reaches
the operator. You can get extra
2
The terms LINDE, UNIONARC, UNIONMELT, and SIGMA are registered trade marks of Union Carbide Corporation.
E
AR n
INSERT FOR FORM 930 AND FORM 9756
REVISED INSTRUCTIONS FOR LUBRICATING THE WIRE FEEDER
The following information replaces previous instructions in Form 930 page 16
paragraph M and Form 9756 page 8 paragraph B. Tubes of lubricant, Part No. 29N62,
are supplied with each wire feeder and should be used as follows:
TO LUBRICATE WORM SECTION
i.
Use Linde lubricant, Part No. 29N62.
Orient units so that motor and feed roll shaft are in a horizontal plane..
Remove the dip stick plug from the top of the gear reduction unit, Figure
13 in Form 930 or Figure 6 in Form 9756.
Put the entire contents of one tube of Linde lubricant, Part No. 29N62
into the worm section.
Replace and tighten the dip stick plug.
NOTE: When the wire feeder is positioned with the axis of the output shaft vertical,
it will be necessary to use two tubes of Linde lubricant, 29N62, in this
section of the gear head. The breather plug should be interchanged with
either of the two drain plugs located on the bottom of the gear case so
that the breather will be positioned on the top side of the gear head when
in use.
TO LUBRICATE SPUR GEAR SECTION
1,
De
Use Linde lubricant, Part No. 29N62.
Orient the unit so that the motor and feed roll shafts are in a horizontal
plane.
Remove the spur section filler plug.
Put the entire contents of one tube of Linde lubricant, Part No. 29N62
into the spur gear section.
Replace and tighten the filler plug.
COLD WEATHER OPERATION
Where the wire feeder is to be used at temperatures near or below freezing,
Linde lubricant 29N63 should be used instead of Linde lubricant 29N62. Pour 3
Fluid ounces into the worm gear section and also into the spur gear section.
NOTE: With the wire feeder positioned with the axis of the output shaft vertical,
insert Y fluid ounces of lubricant in the worm section, and 3 fluid ounces
in the spur gear section.
CHECKING LUBRICANT LEVEL
The head must be in the normal upright position as shown in Figure 13.in
Form 930 and Figure 1 in Form 9756, in order to check the ‘‘lubricant. level.
1. When the spur section indicator plug is removed, the lubricant level
should reach to approximately the middle of the plug hole and thus
overflow through the plug hole. Add lubricant whenever the level
falis below the plug hole.
2. ‘The level of the lubricant in the worm section is checked by means of the
dip stick. Proceed as follows:
(a) Remove the dip stick plug and wipe the dip stick.
(b) Re-insert the dip stick plug with the bottom of the plug resting on
the outside of the gear housing. Do not screw in the plug.
(c) Remove the dip stick plug and note the lubricant level on the dip
stick. |
For normal operation, the level should reach approximately 3-3/8
inches from the bottom of the dip stick plug.
Where the head is to be operated with the output shaft vertical,
the tube level should reach to 2-3/16 inches from the bottom of the
dip stick plug.
(4) Replace or tighten the dip stick plug.
NOTE: The level of Linde's lubricant 29N62 can not be determined immediately
after inserting the lubricant because the lubricant does not always level
out quickly. The lubricant will level out after the head has been in service
for a short period and then allowed to drain to the bottom of the case.
LINDE COMPANY” — AS
Division of Union Carbide Corporation. _
Multilith in U.S.A.
IMD- J-8562-60
F-9756
I. Introduction
The purpose of this booklet is to present the information needed to set up, cperate, and maintain the LINDE
EH-2 and SH-2 Wire Feeders. This booklet is not concerned with welding techniques or procedures.
In any welding job, the greatest degree of flexibility and versatility can be gained only through the proper
selection and use of the many items of available equipment. The EH-2 and SH-2 Wire Feeders, when used
with various UNIONMELT accessory items in electric welding processes, are termed as the UEH-2 and
USH-2 Welding Heads respectively.
A modified EH-2 wire feeder is used with the UAM-1 UNIONARC welding machine. The feed roll shaft for
this wire feeder extends through the gear reduction unit and is used to drive a magnetic drum in the flux
dispenser, through a gear and clutch arrangement. Bearing and cap assembly ''C" (see Figure 7) has been
changed to accommodate the lengthened feed roll shaft. In addition, different feed rolls are used for the
wire sizes employed in UNIONARC welding (See F-9812). The wire feeder for the UNIONARC welding ma-
chine does not use the standard EH-2 mounting clamp, but is fastened toa mounting plate on the machine by
the tapped lugs onthe gear reductionunit. For your convenience, this booklet will describe only the wire feeders.
Additional equipment is treated in detail in the instruction booklets listed in the table below.
High speed EH-2 wire feeders for SIGMA welding canbe ordered separately or as part of a complete SEH-2
welding head assembly consisting of the wire feeder, a three roll straightener, a wire straightener exten-
sion, a straightener adaptor, an argon and water hose connection block assembly, and a connection block
mounting bracket. See F-930 for complete details on the Sigma wire feeders.
Equipment Form No. Title
Mounting Components, Wire Handling Equip- F-9758 Instructions and Parts Data for UNIONMELT Ac-
ment, Composition Handling Equipment, cessories for EH-1, EH-2, and SH-2 Wire
Guiding Devices Feeders
Gear Adjustable Mounting Clamp F-9910 | Installation Instructions for Gear Adjustable
Mounting Clamp for use with EH-2 and 5H-2
Wire Feeders,
Busbar and Contact Nozzles, Busbar and Con- F-9784 Instructions and Parts Datafor Busbar and Con-
tact Jaws, Deep-Groove Nozzles, Dual- tact Jaws and Nozzles for EH-1, EH-2, and
Wire Nozzles SH-2 Wire Feeders
"US" Series Voltage Control F-9414 | Instructions for the "US" Series Voltage Con-
trol (Series 4 and 5)
USC-4 Series Voltage Control F-97957 Instructions and Parts Data for the USC-4 Series
Voltage Control |
UCC-3 Constant Feed Control F-9673 Instructions and Parts Data for the UNIONMELT
UCC-3 Constant Feed Control
CM-37 Machine Carriage #-9110 | Instructions for the CM-37 Machine Carriage
OM -48 Side-Beam Carriage F-9160 | Instructions and Parts Data for the LINDE OM- 48
(Series 5) Side-Beam Carriage
UAM-1 UNIONARC Welding Machine F-9812 | Instructions and Parts Data for the LINDE UAM-1
UNIONARC Welding Machine
SEH-2 Welding Head F-930 Instructions and Parts Data for the LINDE SEH-2
Welding Head
И. Description
A. The Wire Feeder mounted ona gear reduction unit which has a wire
The H-2 Wire Feeder (EH-2 and SH-2) is the basic feed roll mounted on its output shaft. Knurled feed
drive mechanism which when used with various ac- roll 28V53 (2-in. dia.) is used for welding wires from
cessory equipment in electric welding processes, 3/32 through 3/16-in. diameter. Flat serrated feed.
feeds welding wire to the weld zone at controlled roll assembly 28V 67 (1.72-in. Ча.) is used for 1/4-
rates. Each feeder is composed of four basic units: in, dia. wire. When this feed roll is used, the flat
the wirefeed motor, the gear reduction unit, the pres- pressure roll 28V52 should be replaced by grooved
sure roll and accessory support assembly, and the pressure roll 323009 to prevent the wire from riding
mounting clamp. See Figures 1 and_2. off the roll. Wire feed speeds will be somewhat
lower with the smaller diameter feed roll, The gear
The only difference between the EH-2 and SH-2 is reduction unit consists of two sections of gearing,
in the type of motor used to provide the initial power which reduce the output speed of the motor to that
for feeding welding wire. The EH-2 is constructed required at the feed roll. The first section consists
with a special d.c. shunt motor, designed especially of three stages of spur gears, the second section
for constant potential applications. The SH-2 Wire consists of a worm and worm gear which drive the
Feeder employs a 32-volt universal motor, designed feed roll shaft.
for arc voltage control applications. The EH-2 is
used with the UNIONMELT UCC-3 Constant Feed
Controi orin the case of UNIONARC welding with the
UACC-4 Constant Feed Control; while the SH-2 is
used with either the USC-4 Arc Voltage Control or
the "US" Control in UNIONMELT welding.
Á spring-loaded pressure roll in the pressure roll
and accessory support assembly, provides the back-
up force necessary for positive, non-slip wire feed.
The accessory support assembly also provides mount -
ing facilities for a wire straightener, and contact noz-
zles and jaws, and allows angular adjustment of these
The outward appearance and construction of the two
items in the plane of the feed roll.
wire feed motors is exactly the same. The motor is
WIRE FEED MOTOR
GEAR REDUCTION UNIT
FEED ROLL
(ACCESSORY) PRESSURE ROLL
AND ACCESSORY
SUPPORT ASSEMBLY
MOUNTING CLAMP
FIG. 1 — LINDE EH-2 and SH-2 Wire Feeder
MOUNTING CLAMP (4)"0" RING
(4) LOCK WASHER
FEED MOTOR ww CAPSCREW “8 “
a;
O O 2) mma ‘(7 GEAR REDUCTION UNIT
CAPSCREW “4”
PRESSURE ROLL AND
ACCESSORY SUPPORT
NOTE: ASSEMBLY
SPUR GEARING NOT {LLUSTRATED
FIG. 2 — Basie Units of EH-2 and SH-2 Wire Feeder Assemblies
The mounting clamp provides a sturdy support for
the wire feeder and permits revolving the wire feeder
around the axis of the motor shaft. The setup flexi-
bility provided by this mounting clamp in combina-
tion with the pressure roll and accessory support
assembly, makes it possible to position the nozzles
and jaws at almost any angle with respect to the work-
piece. For positioning eltner wire feeder during weld -
ing,a gear adjustable mounting clamp which permits
handwheel rotation of the wire feeder is available on
special order under Part No. 376777.
B. Where the EH-2 and SH-2 are Used
Both wire feeders can be used in either stationary or
mechanized installations. Ina stationary installation,
provisions are made for moving the work under the
welding setup, while in mechanized installations, the
wire feeder and its welding accessories are mounted
on a motorized carriage which moves over the work.
A wide variety of mounting components are available
for installing the EH-2 and SH-2 Wire Feeders. Stand -
ardization of mountings and associated hardware pro-
vides awide range of possible combinations. Figures
3 and 4 illustrate typical mechanized setups. In Fig-
ure 3, the EH-2 is mounted onthe LINDE OM -48 Side-
Beam Carriage, while Figure 4 illustrates the SH-2
Wire Feeder mounted on the LINDE CM-37 Machine
Carriage. Full details and installation instructions
for mounting the wire feeders can be found in Form
9758, “Instructions and Parts Data for UNIONMELT
Accessories for EH-1, EH-2, and 5H-2 Wire
Feeders," |
+
C. Operating Features
The EH-2 and 5H-2 medium duty wire feeders ac-
commodate wire sizes up to 1/4-in. in diameter and
welding currents up to 1200 amperes, Each contains
built-in insulation which makes them ready to use
in high-frequency applications.
THE EH-2 WIRE FEEDER
The EH-2 Wire Feeder is available in three separate
speed ranges: the "low speed” 8 rpm; the “medium
speed” 12 rpm; and the "standard speed” 27 rpm.,
Maximum output speeds of the feeder can be altered
by changing the spur gears, the worm and worm
gear in the last stage,or both. Detailed instructions
for changing speeds are, given in Section V, Para-
graph B-2.
EH-2 wire feeders for use withthe UAM-1 UNIONARC
welding machine are supplied in two speed ranges. A
42 rpm wire feeder (Part No. 34V10, 95:1 gear ratio)
is used for feeding 3/32-in. welding wire. By simply
changing the feed roll, nylon inserts for the wire
guides, flexible conduit and torch guide tube, this
wire feeder may be used to feed 3/64-in. wire. A
high-speed, 74 rpm wire feeder (Part No. 34V09,
54:1 gear ratio) is used for feeding 3/64-in. wire
only. This wire feeder may be altered to obtain the
95:1 gear ratio by changing the spur gears in the first
gear reduction section. Detailed instructions for
changing speeds are given in Section V, Paragraph
F-9756
B-2. Welding currents to be used with these wire
feeders'are given in Section II, Paragraph D of the
UAM-1 Instruction Booklet, F-9812.
The welding currents and wire sizes most generally
used for a specific welding application, will deter -
mine what speed wire feeder to use. Table I lists
the recommended currents for each wire size to be
used with the EH-2 Wire Feeders
TABLE I
RECOMMENDED CURRENTS FOR EH-2 WIRE FEEDERS
Welding Current - Amperes*
Low Medium standard
Wire Speed Speed Speed
Diameter (8 rpm) (12 rpm) (27 rpm)
(inches) 28V08 28V 10 28V 12
3/32 250 350 | 600
1/8 450 600 1000
5/32 650 900 1200
3/16 850 1150 жж
1/4 1200 жж жж
*Current values ore maximum values. Minimum values are
approximately ane-half maximum. No load speeds shown.
**Not recommended.
THE SH-2 WIRE FEEDER
The SH-2 Wire Feeder is available inthree separate
speed ranges: the "standard speed” 12 rpm; the
"medium speed''18 rpm; and the "high speed” 41 rpm.
An additional "high speed" 30 rpm wire feeder is
available on special order, The maximum output
speeds can be altered by changing the spur gears in
the first reduction stage, the worm and worm gear in
the last stage, or both, Detailed instructions on the
changing of gears are given in Section V, Paragraph
B-2.
The welding currents and wire sizes most generally
used for a specific welding application, will deter -
mine what speed SH-2 to use. Table I lists the rec-
ommended welding currents for each size wire to be
used with the SH-2 Wire Feeders,
TABLE Ii
RECOMMENDED CURRENTS FOR THE SH-2 WIRE FEEDERS
Welding Current - Amperes
Standard | Medium | High T High
Wire Speed Speed Speed Speed
Diameter | (12 rpm) [(19 rpm) | (30 rpm) | (41 rpm)
(inches) 28V07 28V09 28V81 28V11
3/32 290 390 925 700
1/8 300 679 975 1200
5/32 700 850 1200 A
3/16 950 1200 A A
1/4 1200 A A A
@ Current valves are maximum values and are based on a welding
voltage of 32 valts. These values do not apply at other voltages.
At 25 volts the maximum currents will be about 20% below those
listed. Minimum currents are approximately one-half of maximum.
No-foad speeds are shown.
À Not recommended.
T Available on special order only.
SLIDE ADJUSTMENT
ASSEMBLY(VERTICAL)
LARGE EA >
EH-2 WIRE
FEEDER
METER BOX
WIRE
STRAIGHTENER
UCC-3
CONTROL HOPPER
N COMPOSITION
ELECT. GOV.
FOR OM-48 MOUNTING (OPTIONAL)
SLIDE ADJUSTMENT
ASSEMBLY (HORIZONTAL)
BUSBAR & CURVED
NOZZLE ASSEMBLY
FIG. 3 - EH-2 Wire Feeder in Typical OM-48 Installation
F-9756
Both the EH-2 and SH-2 Wire Feeders are obtain- above, the wire feeder is designated as a right-hand
able with either left- or right-hand feed. When viewed wire feeder. (Figure 2 is an exampleof a right-hand
from the motor end of the assembly, with the dip stick unit; Figure 3 illustrates a left-hand wire feeder.)
and vent and filler holes of the gear reduction unit
on top (see Figure 6), a left-hand unit has the feed
roll shaft extending out of the left side of the gear
umt, With the feed roll shaft extending out of the
right side of the unit under the same conditions as
A left-hand feeder can be converted to a right-hand
feeder, and vice versa, by disassembling the gear re-
duction unit and reversing the order of assembly.
For instructions covering such conversion, refer to
Section V, Paragraph B-3,
VERTICAL ADJUSTMENT SLIDE
. | UNIT SUPPORT
WIRE REE A SN REEL ARM
A PIVOT BRACKET
SH-2 WIRE
FEEDER
WIRE
STRAIGHTENER
er
HORIZONTAL A =
ADJUSTMENT |
SLIDE
LIFTING HOOK BL Pf
TURRET e |
Fe
we ut On A | HOPPER Al
“we | a Eu Shah, @ SUPPORT
м ПАРТОВ, FEED ROLL
BUSBAR &
STRAIGHT
NOZZLE
ASSEMBLY
ROCKER HINGE
de Ts Bee BeBe EOE ROT Te
(tl. Installation
A. Mounting the Wire Feeder
The EH-2 and SH-2 Wire Feeders are mounted by
means of the mounting clamp which is an integral
part of each wire feeder assembly. They can be
mounted on any of the stanaard mounting accessories
(see F-9758), or on any flat surface. They can be
mounted either horizontally (motor-gear unit axis
horizontal) or vertically (motor-gear unit axis ver-
tical). Vertical mounting where the gear unit is above
the motor is not recommended, however. The mount-
ing clampcan be rotated a full 360-degrees about the
wire feeder, providing an unlimited number of pos-
sible mounting positions. Once mounted, the wire
feeders can be rotated within the clamp a maximum
of 90° either side of vertical. See Figure 5 for further
information regarding the limits to which the wire
feeder can be rotated within the mounting clamp and
still provide adequate gear lubrication under normal
conditions,
Installation instructions for gear~adjustable mounting
clamp 376777 are included in F-9910 which is supplied
with the mounting clamp.
B. Lubricating the Wire Feeders
Neither the EH-2 or SH-2 Wire Feeder is lubricated
when shipped. They must be lubricated therefore,
before any Operations are started. Separate con-
tainers of greaseare supplied with each wire feeder.
When the gear reduction unit is used inother than the
normal position, in which the feed roll shaft extends
horizontally to the right or left, additional grease will
be required in the worm gear section to fill the cav-
ities formed at the bearing caps. The lubrication
procedure is as follows:
+ »
.. 2,
Wo pene PTT eq
Fr ER mofo
90° ee nd
. 90°
q
FIG. 5 — Rotation of EH-2 and SH-2 Within Mounting Clamp
- To Lubricate the Worm Section
i. Use the Socony Vacuum Gargoyle MC Medium
Grease supplied.
2. Orient unit so that motor and feed roll shaft are
in a horizontal plane.
3. Remove the dip stick from the topof the gear re-
duction unit (Figure 7), and slowly pour in the
grease, Fill until the grease line is approximately
3-3/4-in. from the bottom of the dip stick plug.
This measurement should be made with the bottom
of the dip stick pipe plug resting on the outside
of the housing, not screwed in place.
4. Secure the dip stick in its receptacle.
NOTE: For feeder positioned with shaft up or shaft down, follow
instructions as above, but fill until the grease line is appraxi-
mately 2-1/8 in. from the bottom of the dip stick plug. The breather
plug should then be interchanged with either of the two drain plugs
(located on the bottom of the gear case) so that it will be positioned
on the top side.
To Lubricate the Spur Section
1. Use the Socony Vacuum Gargoyle MC Medium
Grease supplied.
2. Orient unit so that motor and feed roll shaft are
in a horizontal plane.
3, Remove the spur section indicator plug in the side
of the gear housing and the spur section filler plug
_ on the top of the gear housing. (See Figure 6.)
4, Insert the grease from the top of the gear unit
until it begins to overflow through the plug hole
in the side of the housing.
5. Replace both plugs and tighten in place.
C. Installation of Auxiliary Equipment
1. The Wire Feed Roll
In most cases it is necessary torelieve the pressure
on the pressure roll before installing the feed roll.
Simply back off the pressure adjusting screw of the
pressure roll and accessory support assembly, il-
lustrated in Figure 10. Knurled feedroll 28V53 (3/32
through 3/16-in. wire) is installed as follows:
a, Unscrew the iocknut on the end of the feed roll
shaft and remove the steel washer. See Figure 6.
b. Slide the feed roll onto the shaft so that the key-
way in the roll engages the key in the feed roll
shaft. Position the feed roll square with and flush
against the feed roll positioning nut.
с. Replace the washer and tighten the locknut.
For feed roll assembly 28V67 (1/4-in. wire), first
slide the insulating bushing on the feed roll shaft.
Position the feed roll on the shaft and follow with the
insulating washer, Replace steel washer and tighten
the locknut.
2. The Wire Straightener
The wire straightener is treated in detail in F-9758,
Instructions for Welding Accessories. To install on
either the EH-2 or SH-2 Wire Feeder, insert the
tubular end of the straightener into the appropriate
clamp of the pressure roll and accessóry support
assembly. Rotate to the position desired and secure
by tightening the two capscrews 'B" in the clamp as
shown in Figure 10.
3. Busbar and Nozzles or Jaws
The various combinations of busbar and nozzles and
jaws that can be used with the EH-2 and 5H-2 Wire
Feeders are treated in detail in F-9784, "Instructions
for Busbar and Nozzle and Jaw Assemblies."’ To in-
stall, insert the busbar adaptor of the busbar and
nozzle (jaw) assembly (wire guide inthe case of dual-
wire assemblies), into the appropriate clamp of the
pressure roll and accessory support assembly, until
the shoulder on the busbar adaptor (wire guide for
dual-wire) contacts the bottom of the clamp. Rotate
F-97536
to the position desired and secure by tightening two
capscrews 'B" in the clamp. See Figure 10.
4. Guiding Devices
Complete information, including installation instruc -
tions, can be found in F-9758, 'Instructions and Parts
Data for UNIONMELT Accessories for EH-1, EH-2,
and SH-2 Wire Feeders."
5. Composition Handling Equipment
Complete information, including installation instruc-
tions, can be found in F-9758.
6. Control Equipment
Complete information, including trouble shooting pro-
cedures, can be found in the following:
For EH-2 Wire Feeder - UCC-3 Constant Feed
Control, F-9673
For SH-2 Wire Feeder - USC-4 Voltage Control,
F-9757
Installation instructions can be found in F-9758 for
both the UCC-3 and USC -4,
WORM SECTION
DIP STICK
SPUR SECTION
INDICATOR PLUG
Г SPUR SECTION
FILLER PLUG
"O "RING
NOTE --
FEED ROLL POSITIONING мл— TF
(INCLUDES SETSCREW)
SPUR GEARING NOT ILLUSTRATED
WORM SECTION VENT PLUG
CAP AND BEARING ASSEMBLY "4"
(6) CAPSCREW
ACCESSORY SUPPORT
INSULATOR
INSULATOR DISC
(3) MACHINE
SCREW
2: FEED ROLL KEY
. WASHER
LOCKNUT
FIG. 6 — Partial Breakdown of Gear Reduction Unit
IV. Operation
A. Safety Precautions
As in all electric welding apparatus, there are cer-
tain exposed parts of the welding installation at the
welding voltage potential. At times even the higher
open circuit voltage may be present. Though this is
never more than 115 volts, remember that it is the
Same as ordinary house-lighting voltage, with which
the average person avoids all contact. Under con-
ditions of low body resistance, such as when a person
is perspiring and is in contact with a grounded steel
plate, this voltage may force enough current through
the body to be fatal, For this reason and because a
shock, even though harmless in itseif, may lead to
other injuries due tothe uncontrolled physical reac-
tion, the operator should be aware of the live parts
of the machine and follow safe operating procedures.
Every operator should read and observe the recom-
mended operating procedures and precautionary in-
formation.
1. Never touch the following parts of the installation
when the welding current Contactor Switch is in
the ‘‘ON”’ position:
Busbar
Welding Tip
Wire Feed Roll and Pressure Roll Assembly
Welding Wire
. Wire Reel
Wire Straightener
. Anyuninsulated metallic portions of theinstal-
lation which come in contact with the welding
wire.
2, Turn off the Contactor Switch when welding opera-
tions are discontinued for any length of time. In
the EH-2 or 5H-2 Wire Feeder installation, weld-
ing action is generally stopped by throwing the
wire feed switch tothd ‘‘OFF’’ or neutral position.
This does not turn off the open circuit voltage,
and the operator can receive a shock from touch-
ing any of the ‘“‘live’’ components listed previously.
Never lift the welding machine by hand or crane
with the contactor switch ‘‘ON.’’ Whenmoving the
machine, detach the 8-pole plug from the voltage
control to prevent accidental closing of the weld-
ing contactor.
3. Besure all components of the installationare well
grounded where required. Ail necessary ground
connections are shownin the wiring diagrams fur-
nished with the control equipment. Rough handling
or movement can cause failure of a switch or other
electrical part, and connect one side of a particu-
lar circuit to the control or switch case. If the
apparatus is well grounded, however, the control
or switch will not give a shock when touched.
nrono wem
Fuses should be no larger than specified.
4. Care should be taken to prevent accidental strik-
ing of open arcs. An open welding arc gives off
a brilliant light which, on continuous exposure,
may become extremely painful to the eyes.
a. Never use the inching button control when weld-
ing current contactor is turned on. An arc will
strike if the ‘‘live’’ wire accidentally touches
the work.
10
b. Cover the endof the welding wire where it con-
tacts the workpiece with UNIONMELT Welding
Composition before starting to weld.
c. Make sure the path of travel for the machine
is clear. Ifa ‘‘live’’ part of the machine touches
a grounded object, suchas a steel building sup-
port member, an open are will occur.
B. Feed Roll and Pressure Roll Adjustment
Welding wire is pulled from the wire reel and fed
through the contact nozzles or jaws by the combined
action of the feed roll and pressure roll. The pres-
sure roll forces the wire against the driving surface
of the feed roll, ensuring positive feed, The feed roll
must be positioned correctly with respect tothe bus-
bar adaptor of the nozzle or jaw assembly and the
pressure applied tothe wire must befirm to provide
even, positive feed. If after assembling the feed roll
to the wire feeder, wire feeds erratically, check the
following:
Misalignment of Feed Rall
Unless the feed roll and busbar adaptor are in the
correct position with respect to each other, the wire
may havea tendency toshred or become excessively
scarred, Release the pressure roll adjusting screw.
Loosen capscrew "A" (Figure 10), in the pressure
roll and accessory support assembly and make cer-
tain that the support assembly is square with and
tight against the locating shoulder on the accessory
support insulator, (See Figure 6.) The accessory
support assembly should at all times be in this re-
lation to the accessory support insulator.
If the feed roll is still misaligned, loosen the lock-
nut on the end of the feed roll shaft, and the setscrew
in the positioning nut. (See Figure 6.) Position the
feed roll centrally with respect to the bore in the
busbar adaptor, and locate the positioning nut flush
against the feed roll, Tighten the setscrew in the
positioning nut, and tighten the locknut on the feed
roll shaft.
Incorrect Pressure Applied to the Wire
The pressure applied on the wire by the pressure
roll can be varied by adjusting the pressure adjust-
ing screw of the pressure roll and accessory support
assembly. (See Figure 10.) Use the insulated end
wrench supplied with each wire feeder for any ad-
justments.
If the wire is slipping, increase the pressure on the
pressure roll. If the wire is beingexcessively scar-
red, let up on the pressure. Never tighten the pres-
sure adjusting screw to such an extent that the two
springs in the pressure roll assembly (Figure 10)
are compressed solid,
Detailed instructions for the operation of the weld-
ing head (wire feeder plus accessories) can be found
in the control booklets listed on page 2
F-9756
V. Disassembly and Maintenance
A. Normal Maintenance Schedule
1. General
Little maintenance is required to keep the EH-2 and
SH-2 Wire Feeders in top operating condition. It is
important, however, that moving parts such as feed
and pressure rolls, wire feed motor, etc., be kept
clean and free of dust or dirt, welding composition
or UNIONARC flux when used in UNIONARC weld-
ing. Cleaning is best accomplished by regularly
blowing off these parts with dry compressed air.
This should be done once for every eight hours of
operating time; more often if necessary.
In addition, whenever parts have been disassembled,
extreme care should be taken to prevent accidental
damage to these parts. Bearings especially, should
be protected and kept free from dirt and other foreign
matter. It is good practice to wrap the bearings when-
ever a unit is disassembled, and to applya light film
of clean oil to each bearing before reassembling.
Whenever the worm and worm gear of the gear re-
duction unit have been disassembled, it is recom-
mended that a test run be performed before replac -
ing the gear unit in operation. For a detailed check
on the proper meshing of the worm and worm gear,
the 'bluing' process is recommended, Daub a little
prussian blue on the tooth surfaces of the worm gear,
and reassemble the gears. Slowly rotate the gears
a few times and disassemble. Proper meshing will
be indicated by a symetrically located bright spot on
each of the 'blued' teeth. A common indication of
improperly meshed gears is the presence of abnor-
mally high motor currents during normal operation.
2. Wire Feed Motor Maintenance
Check the wire-feed motor brushes every six months,
or every 200 hours of operation. Unscrew both brush
plugs as indicated in Figure 9 and lift out the brush
and spring assemblies. It is good practice to mark
each brush with a pencil as it is withdrawn, so that
it can be replaced in the original position. If the
position of the brushes relative to the armature is
changed, sparking is likely to occur when the motor
is put back into operation due to improper brush
seating.
Examine the brushes. Make sure that each brush
surface in contact with the motor commutator has
the bright, polished finish that indicates good con-
tact. The polished area should cover essentially all
of the contacting surface of the brush.
When replacing a brush in the motor, be sure to put
it back in the same brush holder, and in its original
position. Be sure also that the brush rides freely
inits holder. New brushes are approximately 3/4-in.
long. When they have worn downto 1/2-in. in length,
they should be replaced with new ones.
With the brushes removed, inspect the surface of the
commutator. It should appear clean and smooth, with
11
a polished brown color where the brushes ride it. lf
the surface appears rough, disassemble the motor
and remove the armature. Polish the commutator
surface with No. 00 sandpaper and wipe clean. For
this operation, it is preferable to rotate the armature
in a lathe.
CAUTION: Never use emery cloth or emery stone for this operation.
Emery is a conductor of electricity, and any residual loose particles
may short circuit the commutator segments during operation of the motor.
After two sets of brushes have been worn out, check
the commutator for wear. If the surface is worn, it
should be smoothed by grinding or turning down on
a lathe, and undercutting the mica segments.
Replacement of brushes andcommutator maintenance
should be performed only by an experienced elec-
trician.
3. Mechanized Installations
Refer to the proper instruction booklet (See page 2)
for routine maintenance of the machine carriage.
4. Adjustments for Different Diameter Wire
When joint design or welding conditions require
changing from one wire diameter to another, it may
be necessary to change the wire feed speed of the
wire feeder, and the contact nozzles and jaws used
with the feeder. Refer to Tables I and Il forthe
proper wire feeder to use, and to F-9784 for the
proper nozzles and jaws to use.
B. Disassembly of Gear Reduction Unit
It is strongly recommended that a new gear unit be
purchased rather than disassembling the existing
unit. However, it is realized, that in some cases,
field repairs or alterations must be made, and for
this reason the step-by-step disassembly of the unit
is presented below,
There arethree possible reasons for attempting dis-
assembly of the gear reduction unit. One involves a
complete disassembly for repair or replacement
purposes, a second calls for a partial disassembly
for changing feed roll speeds, and a third involves a
partial disassemblyfor changing from left- to right-
hand feed or vice versa.
1. Total Disassembly
a. Remove the pressure roll and accessory support
assembly by unscrewing the capscrew ‘‘A’’, illus-
trated in Figure 10.
b. Drain the grease from the spur section by remov-
ing the pipe plug in the bottom of the gear unit.
see Figure 14,
é. Drain the grease from the worm section of the
unit by removing the pipe plug inthe side of the
unit. Two plugs, one on each side, are provided.
See Figure 14.
d. Separate the gear reduction unit from the wire
feed motor by unscrewing the four capscrews ''B’’
illustrated in Figure 2, and removing the washers
and "O" rings. Note: The gear head cannot be
removed "straight from" the wire feed motor.
The gear unit must be separated in such a way
that the pilot diameters become disengaged and
then moved in the direction that will enable the
cluster gear on the armature shaft to clear the
cluster gear on the gear reduction unit shaft.
Failure to observe this precaution may result in
damage to the gearing.
. Remove the spirol pin "A", Figure 8, from the
gear unit shaft and slide off the washer "A" and
gear pinion and bearing assembly "A'. Be sure
to support the end of the worm shaft while remov-
ing the pin "A" to avoid damage to the shaft or
its bearings.
Remove washer "'D" from the shaft, and loosen
the lockscrew and setscrew beneath it in gear
"B". Remove gear "B” from the shaft.
. Remove the locknut, washer, feed roll, feed roll
key, and feed roll positioning nut (Figure 6) from
the feed roll shaft. Toremove the positioning nut,
loosen the setscrew in the nut and unscrew the
nut off the shaft. Be careful not to lose the as-
bestos wicking inthe positioning nut. This wicking
is included to prevent damage to the threads of
the feed roll shaft when the positioning nut set-
screw is tightened.
. Remove the insulator disc by unscrewing the three
machine screws, illustrated in Figure 6. Remove
the accessory support insulator by unscrewing
the six capscrews. k
Remove bearing housing assembly "A" (Figure 7),
by unscrewing the six capscrews "A", and remov-
ing the washers and "O"' rings "A". The following
precautions should be taken when removing a cap
and bearing assembly.
j.
(i) The cap and bearing assemblies fit snugly
into the gear unit housing, When removing,
do not cock the assembly or it may bind.
(ii) Correct sidewise alignment of the worm gear
and worm in the gear unit depends in part on
the relationship between shim pack "A", bear -
ing housing assembly "A", bearing cone as-
sembly "A", and the bearing locating shoulder
on the feed roll shaft, The bearing housing
assembly "A" consists of the mounting cap,
the feed roll shaft oil seal Part No. 97W38,
and a complete tapered roller bearing cup
Part No. 97W31. Thecup portionof the roller
bearing is pressed intothe housing. The cone
assembly of the bearing is slip fitted on the
feed roll shaft. If this cone assembly is re-
moved, keep it matched with the bearing cup
in the mounting cap "A".
Do not, under any circumstances, attempt
recombination of unmatched bearing compo-
nents. Do not try to combine a bearing cone
assembly from cap and bearing assembly "А"
with a bearing cup from cap and bearing as-
sembly ''B" or vice versa. To do so will in-
vite misalignment of the worm and worm gear
and could lead to serious and unwarranted
trouble.
If the shim pack '"A' has come off with the cap
and bearing assembly, set itaside withthe corres-
ponding cap and bearing assembly "A".
. Tilt the feed roll shaft sothat the worm gear dis-
engages from the worm and withdraw from the
housing. (The bearing cone assembly from cap
"C" (Figure 7) may come out with the shaft and
gear.)
BEARING & GAP ASSEMBLY tc?
DIP STICK
DIP STICK RECEPTACLE —
OIL SEAL
FEED ROLL SHAFT
AND WORM GEAR
GEAR LOCATING net:
SHOULDER
SHIM PACK “4” BEARING "2"
BEARING CUP “A”
Co. BEARING "A")
ILL (6)"0" RING “4”
PLE (6) LOCKWASHER
(6) CAPSCREW
Set SHIM PACK “8”
BEARING LOCATING
SHOULDER
a Ÿ
E
BEARING CONE ASSEMBLY A" 9 2
BEARING HOUSING ASSEMBLY 4” À Ÿ
(STAKED iN CAP AND
RS (SICAPSCREW'C”
(6) O'RING"C" и
SHIM PACK “С”
BEARING CONE ASSEMBLY’C”
WORM AND BEARING ASSEMBLY
"O"RING “в”
BEARING CAP
(4) CAPSCREW “8”
“A”
FiG. 7 — Exploded View of EH-2 and SH-2 Gear Reduction Unit
12
A
l. Remove the bearing cap (Figure 7) by unscrewing (ii) Check the "O" rings for possible damage.
the four capscrews "B". (iv) Remove any metal filings that may have col-
m, Remove the "O" ring "B" and shim 'B"', and with- lected inside the gear unit housing.
draw the worm from the gear housing. Press the (v) Make certain to replace the cap and bearing
bearings off the worm if desired. In any case assemblies (cap, bearing, bearing cup, and
where it is desired to remove a bearing which is shim} in the same relative positions of the
pressed onto a shaft, make sure that the removal gear reductionunit from which they have been
force is applied only tothe appropriate shoulder of removed. Care should be exercised ininsert-
the inner race of the bearing so that the rollers ing the shaft through the bearing and cap
will not be damaged. assembly to prevent damage to the shaft seals.
NOTE: In removing the worm, be careful not to A piece of scotch tape should be laid over the
damage the oil seal on the motor end of step in the shaft toease the shaft through the
gear unit housing. This seal separates seal, Be sure to remove the scotch tape.
the worm section of the gear reduction unit (vi) Apply a thin film of Permatex Form-A-Gasket
from the spur section. No, 2 to matching faces of housing, shims,
n, Remove the bearing and cap assembly "'C" by un- and bearing housing and cap assemblies "А"
screwing the six capscrews ''C”, shown in Figure and € (Figure 7),
7. Be careful to keep the bearing and cap assem- (vii) With cap and bearing assemblies and shims
bly "C", bearing cone assembly ‘'C", and shim bolted firmly and squarely in place, there
pack "C"' interrelated in the same fashion as des- must be perceptible end play infeed roll shaft
cribed in steps i, and j. above for bearing hous- and bearing assemblies. This end play must
ing assembly "A" and its associated parts. not exceed 0.002-in. in final assembly.
o. To reassemble (viii) When attaching the gear head to the motor
Reverse the procedure outlined in steps a. thru n. assembly, the worm shaft must be directly
above, exercising the following precautions: opposite the depressed counter-bored boss
(i) If bearing ''D" has been removed from the in the motor end bell.
worm shaft, be certain that it is replaced in 2. To Change Feed Roll Speed
(ii)
such a fashion that the face bearing the legend
"THRUST HERE" is adjacent to the bearing
cap.
Make certain all bearings are clean and free
of foreign material,
The overall reduction in speed between the motor
and the feed roll, depends on the combinationof pinion
"A", gear pinion and bearing assemblies 'A" and "B",
gear ''B", and the worm, and worm gear. (See Fig-
KL
PINION AND Tp un
SLINGER INION 4
ASSEMBLY |SLINGE
_——
ure 8,)
GEAR AND | WASHER "8" WORM GEAR
BEARING ASSEMBLY’
WASHER'£* ASA
MOTOR
ARMATURE BEARING
KEY
SPIROL PIN '4”
WASHER ‘4° BEARING
GEAR 8 {INCLUDES 2 SETSCREWS)
GEAR AND un
BEARING ASSEMBLY ‘4” WASHER D
JA )
M Y
SPUR SECTION WORM SECTION
WORM
FIG. 8 — Gear Reduction Setup for EH-2 and SH-2 Wire Feeders
13
F-9756
Tables III and IV list the various combinations of
gears to use for particular wire feed speeds.
TABLE Ш
GEAR COMBINATIONS FOR EH-2
Feed Roll
Speed (rpm) 14% 42% 27 12 8
Pinion ''A’’ 28V37 | 28V36|28V37 28V36
Gear & Bear-
ing *'A”” 28V31 | 28V34 | 28V35 28V34
Gear & Bear-
‘ing ‘‘B”’ 28V32 128V31|128V33 |28V32 |28V31
Gear ''B”” 28N 12 |28N11128N13 |28N12 |28N11
Worm Gear 29N 17 28N26
Worm 28V65 28V42
* 42 rpm is obtained with the UNIONARC wire feeder 34V10 (95:1
gear ratio) 74 rpm is obtained with the UNIONARC wire feeder
34/09 (54:] gear ratio). To convert this wire feeder to the slower
speed, replace the four spur gears indicated in Table Hl with those
of the other ratio.
TABLE iv - GEAR COMBINATIONS FOR
SH-2 WIRE FEEDERS
Feed Roll Speed (rpm) 12 19 30 41 |
Pinion "A" 28V36 | 28V36 |28V37 | 28V37|
Gear & Bearing "А" 98V 34] 28V34 | 28V31 | 28V35
Gear & Bearing "'B" | 28V31 | 28V32 |28V35]| 28V33
Gear "В" 28N11 | 28N12 |29N43 | 28N13
Worm Gear 28N26
Worm 28V 42
Separate EH-2 and SH-2 Wire Feeders are available
for all speeds, and it is recommended that these units
be purchased rather than changing gears.
However,
if the customer wishes to convert from one speed to
another, he may do so by proceeding as outlined below.
TOCHANGE THE SPUR GEARS AND MOTOR PINION
a.
b,
Proceed as outlined in steps a. and b. in Para-
graph B-1.
To remove the spur gears - proceed thru steps
e, and f. in Paragraph B-1.
To remove the motor pinion and gear - Remove
spirol pin "B'" from-the armature shaft. Slide off
washer ''B' (Figure 8), and slide off gear pinion
and bearing "B". Be sure to support the end of
the motor shaft while removing pin "Bin order
to avoid damage to the shaft or its bearings.
. Remove washer "C", (Figure 8), and slide pinion
"A" off the armature shaft. Remove the key from
the shaft.
. To reassemble
Reverse the procedure outlined in steps a. thru d.
above, exercising the following precautions:
(i) Make certain to key the pinion "A" to the ar-
mature shaft, A special hardened key is used
at this point. It must fit tightly in the shaft.
Replace the key if it fits loosely.
(ii) The slinger (Figure 8) must not rub against
the motor or the seal housing.
(iii) Gear pinion and bearing assemblies "B' must
rotate freely on the shaft.
(iv) Washer "'B" must not rotate on the shaft. The
groove in this washer must engage the spirol
рп "В".
(у) Washer "A'' must not retate on the shaft. The
groove in this washer must engage the spirol
pin "А".
(vi) Before operating be sure to replace the lub-
ricant within the spur section, Refer to Sec-
tion III, Paragraph B for lubrication instruc -
tions.
NOTE: When the above spur gears are changed, the rpm infor-
mation on the nameplate will no longer be applicable. The
changed gear ratio and feed rofl speed should be indicated on
the wire feeder,
TO CHANGE THE WORM AND WORM GEAR
a,
b.
Proceed as outlined in steps a, thru m, in Para-
graph B-1l.
Press the worm gear off the feed roll shaft and
replace with the new gear. The worm gear must
be keyed to the feed roll shaft and pressed in po-
sition so that the gear is square and tight against
the gear locating shoulder on the feed roll shaft.
(See Figure 7.)
Replace the worm assembly (worm and bearings)
with the new worm assembly, and reassemble by
reversing the procedure outlined in steps a. thru
m, in Paragraph B-1.
‚ Ве sure that bearing "D" is oriented so that the
face bearing the legend ''THRUST HERE" is ad-
jacent to the bearing cap (Figure 7).
‚ Ве sure to apply a thin film of Permatex No, 2 to
matching faces of housing, shims, and bearing
housing and cap assemblies "A" and "C" (Figure 7).
With bearing cap assemblies and shim packs bolted
firmly in place, there must be perceptible end play
in feed roll shaft and bearing assemblies. This
end play must not exceed 0,002-inches. For mak-
ing sure that the worm and worm gear are proper-
ly meshed, the 'bluing' process (Paragraph A-1)
is recommended.
NOTE: When the above worm and worm gears are changed, the
rpm information on the nameplate will no longer be applicable.
The changed gear ratio und feedroll speed should be indicated
on the wire feeder.
3. To Change Left- or Right-Hand Feed
To change either wire feeder (EH-2 or SH-2) from
left- to right-hand feed, or vice versa, it is not nec-
essary to disassemble the whole unit. It should be
noted that the H-2 gear reduction unit contains a
breather tube which permits removal of the worm
gear (on the feed roll shaft) from one side of the unit
only. In all cases, the gear and shaft can be with-
drawn from the right-hand side (Figure 7), of the
unit.
14
CR ee + er 0 oT
e а
nn O i
Gear changeover is performed as follows:
а.
Proceed through steps a. and c.in Paragraph B-1
excluding step b. It is necessary to drain only
the worm section.
. Proceed as indicated in steps g. thru n. in Para-
graph B- 1.
. To reassemble
In reversing left- or right-hand gear units, it is
particularly important to keepall units of the cap
and bearing assemblies together and to take special
precautions not to mix up the bearings from each
assembly.
(1) Reverse the feed roll shaft with worm gear
and bearings attached, and insert into the unit
from the right-hand side, (It will be assumed
for purposes of clarity that, the Original unit
was a right-hand unitas illustrated in Figure
7, and is being converted to a left-hand unit.)
The long end of the feed roll shaft is now ex-
tending out the left side of the unit.
(ii) Attach shim pack "C" and bearing and cap
assembly "С" (the "blind" cap) to the gear
unit using the six capscrews ''C' shown in
Figure 7. It is assumed that bearing ''C'' has
been mounted on the feed roll shaft prior to
inserting the shaft in the housing. Be sure to
apply a thincoat of Permatex No. 2 to match-
ing surfaces of housing, shims, and bearing,
housing and cap assemblies "А" ап "С".
(111) Reverse the procedure outlined in steps g.
thru j. in Paragraph B-1.
Replace the pressure roll and accessory as-
sembly on the insulator disc. Make certain
that the rear edge of the assembly is square
with and flush against the flange of the in-
sulator disc. Secure by tightening capscrew
“A” illustrated in Figure 10,
secure the pipe plugs (Figure 6) in the gear
housing and refill with lubricant. Refer to
Section III, Paragraph B for lubrication in-
structions.
(iv)
C. Disassembly of Wire Feed Motor
Under normal conditions, the only maintenance re-
quired on the motor is a periodic check (and replace-
ment if necessary) of the brushes.
The procedure
for doing so is outlined in Paragraph A of this sec-
tion. If additional disassembly is required, proceed
as follows:
1.
Drain the grease from the spur section of the gear
reduction unit by removingthe pipe plug frem the
bottom of the gear unit. see Figure 13.
. Separate the motor from the gear reduction unit
by unscrewing the four capscrews ‘'B’’ illustrated
in Figure 2. Remove the lock washers and "0"
13
rings and set aside with the capscrews for handy
access when reassembling.
. Remove the washer ''B", gear and bearing assem-
bly "В", washer "C”, and pinion "A", (Figure 8),
from the armature shaft by driving out spirol pin
"В". Be sure to support the end of the motor shaft
while removing pin "B” in order to prevent dam-
aging the shaft or its bearings.
. Unscrew the brush plugs and remove the brushes
and spring assemblies, illustrated in Figure 9.
Note how each brush is withdrawn so that it may
be replaced in the same position. Match-mark
the brushes and holders.
. Unscrew the three machine screws and remove
the bearing retainer and gasket. (See Figure 9.)
. Unscrew the four housing screws (Figure 9}, re-
move the washers and ‘‘O”’ rings.
. Unscrew the frame screws and remove the fol-
lowing items in the sequence indicated.
Housing
Armature and Bearing Assembly
Fan Baffle Plate
Ч. Spacers
O pp
. If desired withdraw the field assembly as far as
the connected wires allow.
. To reassemble
Reverse the procedure outlined in steps i thru 8
above.
D. Replacing the Pressure Rol]
After long service, the pressure roll shown in Fig-
ure 10 may develop a deep groove where it contacts
the welding wire. The roll should then be replaced
with a new one, to prevent the wire from binding or
Slipping during welding operations. Replacement is
done as follows:
1.
Remove the pressure roll and accessory support
assembly from the wire feeder by loosening cap-
screw “‘A’’, illustrated in Figure 10.
. Back off the pressure adjusting screw so that the
clapper and pressure rollcan be swung awayfrom
the support clamp,
Using a drift punch, punch out the roll pin "A",
Punch out from the top of the clapper, as the hole
is enlarged on the top to accept a punch.
. Slide the pressure roll shaft out of the clapper
and remove the pressure roll.
. Check the pressure roll bearing and the pressure
roll shaft. If the roll tire is worn, or if the roll
wobbles or has a sloppy fit on the shaft, replace
either the roll or shaft, or both.
. Reassemble the roll, shaft, and roll pin, in the
reverse sequence of steps 1 thru 4 above.
. Remount the assembly on the wire feeder, and
adjust the pressure adjusting screw as before.
MOTOR FRAME (4)"O" RING
FIELD ASSEMBLY (4) HOUSING SCREW
FAN BAFFLE (4) WASHER
PLATE , ae
Е (2)FRAME SCREW
| 2 ARMATURE AND
Pi _ IA A eee ASSEMBLY (3)MACHINE SCREW
(2) BRUSH HOLDER BEARING RETAINER
en AND SPRING ASSEMBLY
(2)BRUSH PLUG
FIG. 9 — Exploded View of Wire Feed Motor
"O" RING
SPRING BLOCK
(2) CUP WASHER
(2) SPRING
(2) MACHINE SCREW
9, CLAPPER
og и, PRESSURE ROLL ASSEMBLY
CLAPPER PIN ES
NE SPIROL PIN “4”
PRESSURE
ADJUSTING SCREW
SUPPORT GLAMP (4) CAPSCREW "В"
NUT CAPSGREW ‘4°
FIG. 10 — Exploded View of Pressure Roll and Accessory Support Assembly
16
e ME a
A he a ae
VI. Replacement Parts Information
HOW TO ORDER REPLACEMENT PARTS
F-9756
(Diamond Grip}
17
1. All replacement parts are keyed on the drawings which follow. “Two types of numbers are used on these
drawings.
A. Standard Part Numbers. These are formed by two pairs of digits with a letter between (for example:
01N21, 18V69). Each standard part number is accompanied by a descriptive word or words.
8. Hardware Symbols. These are eight digit numbers (for example: 61203910). Hardware symbols are
usually accompanied on drawings by a one word description, |
2, Order standard parts by part number and part name, as shown on drawings. DO NOT ORDER BY PART
NUMBER ALONE.
3. Many of the standard parts on the drawings, particularly electronic parts, are "vendor items." This
means that they are standard commercial parts made by and purchased from other manufacturers. It
will save you time and money if you buy these parts from a local electronics outlet or directly from the
manufacturer. When ordering from these outside sources,use the manufacturer's part number or desig-
nation given in the "Vendor Items" list below. Of course, if you cannot obtain one of these items else-
where, LINDE will furnish it on order.
4, For hardware, look up part number in hardware list on the next page. You will find there a full descrip-
tion. "Hardware" items can usually be purchased locally. When ordering hardware from LINDE be sure
to include the complete description given in the hardware list. Do not order hardware by the part num-
ber alone,
5. When ordering, be sure to state quantity of each part needed,
6. Always state the series or serial number of the machine on which the parts are to be used. The serial
number is stamped on the unit nameplate. The "series no.” is the first digit of the serial number,
wherever the serial number starts with a digit followed by a letter. When the serial number starts with
one or two letters, always give the complete number.
7. Indicate any special shipping instructions.
8. Order replacement parts from the LINDE district office nearest you.
VENDOR ITEMS PARTS LIST
Part No. Description Part No, Description
82W28 13/32 in. LD. x 5/8-in. O.D. #16 Stub 97 W289 Oil Seal-The Garlock Packing Co. No.
Ga, (.065) Wrought Washer Mfg. Co. 63X89
90W39 Plug Shell - Pyle National Co. Cat. No. 97W30 Bearing-Timken Bearing Co. Single
APD 2006 Row Type TS No. 05075
90W 42 Contact - Pyle National Co. 6-Pole 97W31 Bearing Cup-Timken Bearing Co.
Male Cat, No. AP-610 Single Row Type TS No. 05185
90W79 Plug Shell - Pyle National Co, "PAD" 97W34 Grommet-General Cement Co, Cat, #1043
1504 97W36 Bearing - Marlin-Rockwell Corp. Lubri-
90W81 Contact - Pyle National Co, 4-Pole Seal No, 203SFF -Q7A7
Male Internal Unit Cat. No. PA-415 97W39 Oil Seal - The Garlock Packing Co.
96W 49 Terminal-Aircraft Marine Products Co, No. 51X148
No. 33726 Heavy Duty Ring Tongue 97W73 Bearing-Marlin Rockwell Corp. Cat.
No. 7203-QA7
COMPOSITE HARDWARE LIST
WIRE FEED ROLL
(SEE TABLE)
ACCESSORIES [NOT SUPPLIED)
FEED ROLLS
PART NO. SIZE
2B VSS (KNURLED) | 3/32" TO 3/16"
f| 2BVO TISERRATEOD) 1/4" ONLY
#344749 (SERRATED)) 3/32" TO 1/4"
t When feed roll 28V67 is used, flat pressure roll 28V52 should be replaced by grooved pressure roll 323009,
*For dual wire welding.
Ног feed rolls used with UNIONARC wire feeders, see F-98172,
tw
Part No, Description Part No, Description
6020-1028 1/8 in. - 27 Hex. Socket, Pipe Plug, 6133-7903 #10 - 24 x 5/8 in. Lg. Socket, Cone
Steel Point, Set Screw, Cad. Plated
6020-1322 3/8 in. - 18 Hex, Socket, Pipe Plug, 6134-0135 3/8 in, - 24 x 2-1/2 in. Lg. Socket,
Steel Head, Cap Screw, Steel
6120-1896 #8 - 32x 2 in. Lg. Round Head, Machine 6225-0396 3/32 in. (.094) x 7/8 in. Lg. Roll Pin,
Screw, Steel Steel
6120-3824 #4-40 x 1/4 in. Lg. Flat Head, Machine 6239-9346 5/64 in. (.078) x 5/8 in. Lg, Spirol Pin,
screw, Steel Med, Cad Plated
6120-3910 #10-32 x 3/8 in. Lg. Flat Head, Machine 6324-0230 5/8 in, - 18 Hex Jam Nut, Steel
Screw, Steel 6420-4225 5/8 in, S.A,E, Washer, Steel
6123-4890 $8 -32 x 1/8 in. Lg. Socket, Flat 6420-7075 1/4 in. Shake Proof Lockwasher,
Point, Set 5crew, Steel (External Tooth), Steel
6124-0083 1/4 in. - 20 x 1/2 in. Lg. Socket Head, 6480-6918 #10 Cupwasher, Chrome Plate
Cap Screw, Steel 7363-5116 Simplex Tirex Cord, Type "SO", 16 Ga.
6124-0090 1/4 in. - 20 x i in Lg. Socket Head, Cap one Conductor
Screw, Steel 7363-5416 Simplex Tirex Cord, Type "SO", 16 Ga.
6124-0127 3/8 in. - 16 x 2 in. Lg. Socket Head, Cap 4 Conductor
Screw, Steel 7363-5859 Simplex Tirex Cord, Type "SO", 18 Ga.
6124-0412 3/8 in, - 24x 1 in. Lg. Socket Head, 4 Conductor
Cap Screw, Steel
6124-0473 1/4 in. - 20 x 3/4 in. Lg. Socket Head, 7756-0361 Cord Guard Assembly, Fastman, Cat
Cap Screw, Steel #36-16
6124-1133 3/8 in, - 16x 1 in, Lg. Hex. Head, Cap 7756-0369 Body-Cord Guard, Eastman, Cat #36-9
Screw, Steel 7756-0407 Cord Guard Assembly, Eastman, Cat #40G
6124-2086 1/4 in. - 20 x 3/8 in, Lg. Socket Button- 1756-0408 Body-Cord Guard, Eastman, Cat #40-8
head, Cap Screw, Steel 9360-0020 3/32 in. Dia, Asbestos Wicking 1/4 in.
6133-4908 #10 - 32 x 1/4 in. Lg. Socket, Flat Lg. (Non-graphited)
Point, Set Screw, Cad. Plated
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23
LINDE Supplies These Quality Products
to the Nation’s Industries
INDUSTRIAL GASES
LINDE Oxygen, Nitrogen, Argon, Neon, Helium,
Krypton, Xenon, Hydrogen, and mixtures
PREST-O-LITE Acetylene
CALCIUM CARBIDE
UNION CARBIDE Calcium Carbide
OXY-ACETYLENE EQUIPMENT
OXWELD Apparatus for Cutting, Joining,
Treating, and Forming Metals
Acetylene Generators
Manifolds, Regulators and Valves
Welding Rods and Supplies
PUROX Welding and Cutting Apparatus
PREST-O-LITE Welding and Cutting Apparatus
PREST-O-LITE Air-Acetylene Apparatus and Small Tanks
ELECTRIC WELDING AND CUTTING EQUIPMENT
HELIARC Welding and Cutting Equipment
SIGMA Welding Equipment
UNIONARC Welding Apparatus and Supplies
UNIONMELT Automatic Welding Apparatus and Supplies
SPECIAL EQUIPMENT
LINDE Jet-Piercing Equipment
Plate-Edge Preparation Equipment
Steel-Conditioning Machines
Sub-Zero Cold Treatment Equipment
Liquid Oxygen Converters
Liquid Nitrogen Refrigerators
Liquefied Gas Containers
Storage and Transfer Equipment
For Cryogenic Fluids |
OXWELD Oxy-Acetylene Cutting Machines
PREST-O-LITE Cylinders, Shells, and Shapes
OXYGEN THERAPY SUPPLIES
LINDE Oxygen U.S.P.
Oxygen Regulators
OXWELD Oxygen Manifolds and Valves
SPECIAL PRODUCTS
LINDE Synthetic Sapphire, Ruby, Spinel, ana Titania
Fine Alumina Abrasive
Molecular Sieves
The terms “Carbie,” “Heliare,” Linde,” "Oxweld,” “Prest-O-Lite,” “Purox,” “Union
Carbide,” “Unionarc,* and “Unionmelt”” are trade marks of Union Carbide Corporation,
LINDE COMPANY
DIVISION OF UNION CARBIDE CORPORATION
(>
General Office: 30 East 42nd Street, New York 17, N. Y.
Sales Offices in Principal Cities—See Adjoining Column
Lithographed in U.S. A.
F-$756-C IMD J-8032-59
LINDE OFFICES
General Office (
30 East 42nd Street, New York 17, N. Y.
Eastern States
BALTIMORE 4, MD,, 200 East Joppa Road
BOSTON (Needham Hgts.) 94, Mass., 300 First Avenue
BUFFALO 2, N. Y,, 250 Delaware Áve.
CHARLESTON 4, W. VA., P.O. Box 4078,
Kanawha City Station
NEW YORK, 2065 Route 22, Union, N. J.
PHILADELPHIA, Pleasant Valley Rd. & Route 38,
Moorestown, N. J.
PITTSBURGH 22, PA., 644 The Oliver Building
WASHINGTON, D. C., 777 14th Street, N.W.
Central States
CHICAGO 1, ILL., 230 North Michigan Avenue
CINCINNATI 29, OHIO, 709 Melish Avenue
CLEVELAND 14, OHIO, 1300 Lokeside Avenue
DETROIT 21, MICH., 10421 West Seven Mile Road
INDIANAPOLIS 4, IND., 729 North Pennsylvania Street
MILWAUKEE 46, WIS., 1623 South 38th Street
MINNEAPOLIS 2, MINN,, 827 Second Avenue, South
ST. LOUIS, 111 So. Meramec Ave., Cleyton 5, Mo.
Southern States
ATLANTA 8, GA., 22 Seventh St., N. E.
BIRMINGHAM ©, ALA,, 2900 Cahoba Road
MEMPHIS 5, TENN., 48 West Mclemore Avenue
NEW ORLEANS 19, LA., 4833 Conti Street |
Southwesfern States (
DALLAS 26, TEXAS, 2626 Commerce Sireet
DENVER 23, COLO., 666 So. Santa Fe Drive
HOUSTON 27, TEXAS, 3839 W. Alabama
KANSAS CITY 5, MO. 910 Baltimore Avenue
TULSA 24, ORLA., 2901 So. Harvard Avenue
Western States
LOS ANGELES (Vernon) 58, CALIF., 2770 Leonis Blvd. |
PORTLAND 9, ORE., 1205 Northwest Marshall Street |
SALT LAKE CITY 1, UTAH, 436 W. Ninth South Street
SAN DIEGO 10, CALIF,, 1004 Morena Blvd.
SAN FRANCISCO 6, CALIF., 22 Battery Street
SEATTLE 4, WASH., 3404 Fourth Avenue, South
pul sn.
In Canada |
LINDE COMPANY
Division of Union Carbide Caneda Limited
General Office: 40 St. Clair Ave., E., Toronto 7, Canada
EDMONTON, ALTA., Highway 16 and Government Road |
TORONTO 4, ONTARIO, 805 Davenport Road
MONTREAL 9, QUEBEC, 8311 Royden Road
VANCOUVER 4, B. C., 1175 Grant Street
ST. BONIFACE, MANITOBA, 733 Tache Avenue
Outside United States.and Canada
Linde Department
UNION CARBIDE INTERNATIONAL COMPANY |
Division of Union Carbide Corporation
30 East 42nd Street, New York 17, N. ¥., U.S.A. {
Cable Address: UNICARBIDE, New York
GENEVA, SWITZERLAND, Union Corbide Europa, $, A.,
40, Rue du Rhóne
MEXICO 15, D F. MEXICO, National Carbon-Eveready
$. А., Calzada Mariano Escobedo No. 343