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

Ludo Instruction Literature || EH-2 and SH-2
FORM 9756-A
INSTRUCTIONS
and PARTS DATA
for the
Lele
TRADE-MARK
I. INTRODUCTION... .0cosorancenarenos 3
п. РЕЗСЁНРТТПОМ...... и ееьеенняное 3
ИЕ. INSTALLATION ....ooconccorcconras 8
FH-2 and SH-2 IV. OPERATION oooccccnnonnononnconass 10
\. DISASSEMBLY AND
MAINTENANCE ...cccceceeceees 10
WIRE FEEDERS NATION un 1
Be sure this information reaches
the operator. You can get extra
copies through any Linde office.
The terms “‘Linde,’* "Unionarc,"* and ‘‘Unionmelt"' are registered trade-marks of Union Carbide end Carbon Corporation.
|. Introduction
The purpose of this booklet is to present the information needed to set up, operate, 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 "С" (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 on the 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.
Equipment Form No, Title
Mounting Components, Wire Handling Equip- | F-97 58 | Instructions and Parts Data for UNIONMELT Ac-
ment, Composition Handling Equipment, cessories for EH-1, EH-2, and SH-2 Wire
Guiding Devices Feeders
Busbar and Contact Nozzles, Busbar and Con- | F-9784 Instructions and Parts Data for 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-9757 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 F-9119 | Instructions for the CM-37 Machine Carriage
OM-48 Side-Beam Carriage F-5160 | Instructions and Parts Data for the LINDE OM-48
(Series 5) Side-Beam Carriage
UAM-1 UNIONARC Welding Machine F-9812 | Instructions and Parts Datafor the LINDE UAM-1
UNIONARC Welding Machine
ll. Description
A. The Wire Feeder
The H-2 Wire Feeder (EH-2 and SH-2) is the basic
drive mechanism which when used with various ac -
cessory equipment in electric welding processes,
feeds welding wire to the weld zone at controlled
rates. Each feeder is composed of four basic units:
the wirefeed motor, the gear reduction unit, the pres-
sure roll and accessory support assembly, and the
mounting clamp. See Figures l and 2.
The only difference between the EH-2 and SH-2 is
in the type of motor used to provide the initial power
for feeding welding wire. The EH-2 is constructed
with a special d.c. shunt motor, designed especially
for constant potential applications. The SH-2 Wire
Feeder employs a 32-volt universal motor, designed
for arc voltage control applications. The EH-2 is
used with the UNIONMELT UCC-3 Constant Feed
Control or in 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.
The outward appearance and construction cf the two
wire feed motors is exactly the same. The motor is
mounted ona gear reduction unit which has a wire
feed roll mounted on its output shaft. Knurled feed
roll 28V53(2-in. dia.}is used for welding wires from
3/32 through 3/16-in. diameter. Flat serrated feed
roll 29N34 (1,64-in. dia.) is used for 1/4-in. dia.
wire. Wire feed speedswill be somewhat lower with
the smaller diameter feed roll. The gear reduction
unit consists of two sections of gearing, which re-
duce the output speed of the motor to that required
at the feed roll. The first section consists of three
stages of spur gears, the second section consists of
a worm and worm gear which drive the feed roll
shaft.
A 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
items in the plane of the feed roll.
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 AD CAPSCREW "28"
GEAR REDUCTION UNIT
CAPSCREW “4 “
PRESSURE ROLL AND
ACCESSORY SUPPORT
ASSEMBLY
NOTE :-
SPUR GEARING NOT ILLUSTRATED
FIG. 2 — Basic 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 either wire feeder during weld -
ing, wire feeder assemblies equipped witha gear ad -
justing ring clamp are available on special order.
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 illustratetypical 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 SH-2 Wire
Feeders,
C. Operating Features
The EH-2 and SH-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-2wirefeeders for use with the UAM-1 UNIONARC
welding machine are supplied in two speed ranges. Á
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. 34V 09,
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
B-2. Welding currents to be used with these wire
feeders are given in Section II, Paragraph D of the
UAM-1 Instruetion 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 1
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 “x **
*KCurrent values are maximum values. Minimum values are
approximately one-half maximum. No load speeds shown.
zkNot recommended.
THE SH-2 WIRE FEEDER
The SH-2 Wire Feeder is available in three separäte
speed ranges: the "standard speed” 12 rpm; the
"medium speed” 18 rpm; and the "high speed” 4] rpm.
The maximum output speeds can be altered by chang -
ing the spur gears in the first reduction stage, the
worm and worm gear in the last stage, or both, De-
tailed 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 U 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
Wire Speed Speed Speed
Diameter (12 rpm) (19 rpm) (41 rpm)
(inches) 28V07 28V09 28V11
3/32 250 350 700
1/8 200 675 1200
5/32 700 850 À
3/16 950 1200 À
1/4 1200 À A
@ Current values are maximum values and are based on a welding
voltage of 32 volts. 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-load speeds are shown.
A Not recommended.
LARGE REEL
_ SLIDE ADJUSTMENT
\ ASSEMBLY/(VERTICAL)
EH-2 WIRE
FEEDER
METER BOX
WIRE
STRAIGHTENER
UCC-3
CONTROL HOPPER
ELECT. GOV.
FOR OM-48
MOUNTING
PLATE
SLIDE ADJUSTMENT
ASSEMBLY HORIZONTAL) |
BUSBAR & CURVED
NOZZLE ASSEMBLY
u
2
E
©
e
ue
a
a
2
a
НВА.
Be A on x
(OPTIONAL)
12029
FIG. 3 ~ EH-2 Wire Feeder in Typical OM-48 Installation
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 example of 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
unit. 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 N > REEL ARM
mo | PIVOT BRACKET
| Г. SH-2 WIRE
Г. FEEDER
HORIZONTAL №
ADJUSTMENT 7 WIRE
LIFTING HOOK
TURRET
ge
Li ый : HOPPER &
> к dark hat | a SUPPORT
FL rs pos | De® ASSEMBLY
BE. E Ne < FEED ROLL
' BUSBAR 8
STRAIGHT
NOZZLE
ASSEMBLY
FIG. 4 - SH-2 Wire Feeder in Typical CM-37 Instatlation
Hl. 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 standard 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 clamp can 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.
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 grease are supplied with each wire feeder.
When the gear reduction unit is used in other 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:
rr 1
= TT PTT À
3 ----____L_/LL__J
q
beg 1 Hi XYZ
FiG. 5 - Rotation of EH-2 and SH-2 Within Mounting Clamp
To Lubricate the Worm 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 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, follaw
instructions as above, but fill until the grease line is approxi-
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.
9. Replace both plugs and tighten in place.
C. Installation of Auxiliary Equipment
1. The Wire Feed Rall
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 feed roll 28V53 is
installed as follows:
a, Unscrew the locknut 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.
c. Replace the washer and tighten the locknut,
For feed roll 29N34, first slide insulating bushing
29N36 on feed roll shaft. Position feed roll on shaft
and follow with insulating washer 29N35. 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 rall and accessory 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 SH-2 Wire
Feeders are treated indetail 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
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
"O "RING
INDICATOR PLUG
SPUR SECTION
FILLER PLUG
NOTE --
FEED ROLL POSITIONING NUT
(INCLUDES SETSCREW)
SPUR GEARING NOT /LLUSTRATED
WORM SECTION VENT PLUG
CAP AND BEARING ASSEMBLY “4”
(6) CAPSCREW
ACCESSORY SUPPORT
INSULATOR
INSULATOR DISC
(3) MACHINE
SCREW
FEED ROLL KEY
> WASHER
"ne
N 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 ayerage 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 itself, 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
Any uninsulated metallic portions of the instal-
lation which come in contact with the welding
wire.
Turn off the Contactor Switchwhen welding opera-
tions are discontinued for any length of time. In
the EH-2 or SH-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.’? When moving the
machine, detach the 8~pole plug from the voltage
control to prevent accidental closing of the weld-
ing contactor.
Be sure all components of the installation are well
grounded where required. All 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.
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.
9 особо
bo
3.
a. Neveruse theinching button control when weld-
ing current contactor is turned on. An are 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 arc 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 Roll
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, Loosen capscrew ''A” (Figure 10), in the
pressure roll and accessory support assembly and
make certain 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 relation to the accessory support insulator.
If the feed roll is still misaligned, loosen the lock-
nut on the endof 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,
lf 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.
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 goodpractice to wrap the bearings when-
ever a unit is disassembled, and to apply a light film
of clean gil 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 littie
prussian blue on the tooth surfaces of the worm gear,
and reassemble the gears. Slowly rotate the gears
afew 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. If
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 u 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 disassembly for 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,
c. Drain the grease from the worm section of the
unit by removing the pipe plug in the 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 removingthe 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 onthe 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 glide 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.
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. 97W3B,
and a complete tapered roller bearing cup
Part No. 97W31. Thecup portionof the roller
bearing is pressed into the 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 "A"
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 it aside 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.)
DIP STICK
DIP STICK RECEPTACLE
OIL SEAL
FEED ROLL SHAFT
AND WORM GEAR
GEAR LOCATING
SHOULDER
SHIM PACK “A”
O
по
Po oe
BEARING & GAP ASSEMBLY "С"
BEARING LOCATING
SHOULDER
BEARING CONE ASSEMBLY 4” .°
BEARING HOUSING ASSEMBLY 4"
BEARING CUP “4”
(STAKED iN CAP AND
BEARING “A” )
оо (6)"0" RING “4”
ff o 0
$ pe ¿7 16) LOCKWASHER
(6) CAPSCREW "4"
(SICAPSCREW'C"
р / >,
f 07 ?
(6) "RING “C” nur
SHIM PACK “С”
BEARING CONE ASSEMBLY'C”
WORM AND BEARING ASSEMBLY
SHIM PACK “eB”
"O" "RING tg”
BEARING CAP
a
(4) CAPSCREW “9”
FIG. 7 — Exploded View of EH-2 and SH-2 Gear Reduction Unit
12
men nern
l, Remove the bearing cap (Figure 7) by unscrewing (iii) 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 to the 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 "A"
screwing the six capscrews "C", shown in Figure _ and “C" (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
such a fashion that the face bearing the legend
“THRUST HERE" is adjacent to the bearing
cap.
(ii) 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 combination of pinion
"A", gear pinion and bearing assemblies "A" and "B",
gear "B", and the worm, and worm gear. (See Fig-
ure 8,)
WASHER "В"
SPIROL
PIN #
WORM GEAR
GEAR AND |
BEARING ASSEMBLY "8"
WASHER'C
PINION AND ve
SLINGER PINION 4
ASSEMBLY [SLING
MOTOR
ARMATURE EARING
KEY
SPIROL PIN 4"
WASHER 4" BEARING
GEAR'S (INCLUDES 2 SETSCREWS) WORM
GEAR AND it
BEARING ASSEMBLY 4” WASHER @
к \_ J
“Y” Y
SPUR SECTION WORM SECTION
FIG. 8 — Gear Reduction Setup for EH-2 and SH-2 Wire Feeders
13
(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
Tables III and IV list the various combinations of
gears to use for particular wire feed speeds.
TABLE Ill
GEAR COMBINATIONS FOR EH-2
Feed Roll pin "B",
Speed (rpm) 74% | 42% 27 12 8 (v) Washer "A" must not rotate on the shaft. The
Pinion “A” 98V37 |28y36) 28V37 28V36 groove in this washer must engage the spirol
. pin att
Gear & Bear- . | |
м, (vi) Before operating be sure to replace the lub-
ing ‘‘À 28V31 728V34 | 28V35 28V34 ricant within the spur section. Refer to Sec-
Gear & Bear- tion II, Paragraph B for lubrication instruc -
ing ‘'B’' 28V32 |28V31|28V33 |28V32 |28V31 tions.
Gear **B"’ 28N 12 |28N11|28N13 |28N12 | 28N11 NOTE: When the above spur gears are changed, the rpm infor-
Worm Gear 29N 17 28N 26 mation on the nameplate will no longer be applicable. The
changed gear ratio and feed rol! speed should be indicated on
Worm 28 V65 28V42 the wire feeder,
* 42 rpm is obtained with the UNIONARC wire feeder 34V10 (95:1
gear ratio). 74 rpm is obtained with the UNIONARC wire feeder
34V09 (54:1 gear ratio). -To convert this wire feeder to the slower
speed, replace the four spur gebrs indicated in Table JH with those
of the other ratio.
TABLE IV — GEAR COMBINATIONS FOR
$H-2 WIRE FEEDERS
12 19
36 6
eed Roll
ПА"
& 28V32
28N12
orm 28V42
Separate EH-2 and SH-2 Wire Feedersare 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 GEARSAND MOTOR PINION
TO CHANGE THE WORM AND WORM GEAR
a. Proceed as outlined in steps a. thru m. in Para-
graph B-1.
b. 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.)
c. 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,
d. Be sure that bearing "D" is oriented so that the
face bearing the legend "THRUST HERE" is ad-
jacent to the bearing cap (Figure 7).
e. Be sure to apply a thin film of Permatex No. 2 to
matching faces of housing, shims, and bearing
housing and capassemblies "A" and "C" (Figure 7).
With bearing cap assemblies and shim packs bolted
firmly in place, there must be perceptible end play
infeed roll shaft and bearing assemblies, This
end play must not exceed 0.002-inches. For mak-
a. Proceed as outlined in steps a. and b. in Para-
graph B-1. ing sure that the worm and worm gear are proper-
b. To remove the spur gears - proceed thru steps ly meshed, the 'bluing' process (Paragraph A-1)
e. and f. in Paragraph B-1. is recommended.
c. 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
NOTE: When the above worm and worm geers are changed, the
rpm information on the nameplate will no longer be applicable.
The changed gear ratio and feedroll speed:should be indicated
on the wire feeder.
the motor shaft while removing pin "B" in order
to avoid damage to the shaft or its bearings.
d. Remove washer "C", (Figure 8), and slide pinion
“A' off the armature shaft. Remove the key from
the shaft.
е. 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 keyis used
at this point. It must fit tightly in the shaft.
Replace the key if it fits loosely.
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
Gear changeover is performed as follows:
a. Proceed through steps a. and c. in Paragraph B-1
excluding step b, It is necessary to drain only
the worm section.
b, Proceed as indicated in steps g. thru n. in Para-
graph B-1.
c. To reassemble
In reversing left- or right-hand gear units, it is
particularly important to keep all 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
wasa 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 "'C" (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 "A" and "С".
(iii) Reverse the procedure outlined in steps g.
thru j. in Paragraph B-1.
(iv) Replace the pressure roll and accessory as-
sembly onthe 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,
(v) Secure the pipe plugs (Figure 6) in the gear
housing and refill with lubricant. Refer to
Section III, Paragraph B for lubrication in-
structions.
C. Disassembly of Wire Feed Motor
Under normal conditions, the only maintenance re-
quired onthe motoris a pericdic 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 fromthe spur section of the gear
reduction unit by removing the pipe plug frem the
bottom of the gear unit. See Figure 13.
2. Separate the motor from the gear reduction unit
by unscrewing the four capscrews ‘'B’’ illustrated
in Figure 2. Remove the lock washers and "O"
15
rings and set aside with the capscrews for handy
access when reassembling,
- Remove the washer "B", gear and bearing assem-
bly "B", washer "C", and pinion "A", (Figure 8),
from the armature shaft by driving out spirol pin
"B". 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.
a. Housing
b. Armature and Bearing Assembly
c. Fan Baffle Plate
d. Spacers
. If desired withdraw the field assembly as far as
the connected wires allow.
. To reassemble
Reverse the procedure outlined in steps 1 thru 8
above.
D. Replacing the Pressure Roll
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 roil or shaft, or both.
. Reassemble the roll, shaft, and roll pin, in the
reverse sequence of steps | 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 el L. GASKET
= (D)SPACER—T
(2) FRAME screw
H IN
ARMATURE AND OUSING
BEARING ASSEMBLY (3)MACHINE SCREW
(2) BRUSH HOLDER BEARING RETAINER
“asus AND SPRING ASSEMBLY
(2)BRUSH PLUG
FIG. 9 — Exploded View of Wire Feed Motor
"0" RING
SPRING BLOCK
PRESSURE
(2) CUP WASHER
: (2) SPRING
A N W
OJUSTING SCRE O YY pa SCREW
fro os CLAPPER
(2)GROMMET wa Hess и, PRESSURE ROLL ASSEMBLY
$ E
CLAPPER PIN
SPIROL PIN "8"
RE
SUPPORT CLAMP e ZA (4) CAPSCREW “a”
NUT CAPSCREW '4*
FIG. 10 — Exploded View of Pressure Roll and Accessory Support Assembly
16
VI. Replacement Parts Information
HOW TO ORDER REPLACEMENT PARTS
1. Ali replacement parts are keyed on the drawitigs 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,
B. 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 coursé, 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 nura-
ber alone.
. 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,
gn
VENDOR ITEMS PARTS LIST
Corp. No. 909-28 Compound 829-70
17
PART NG DESCRIPTION PART NO, DESCRIPTION
85W10 "O" Ring - Linear Co. #1820-5 Comp. 97W29 Oil Seal - The Garlock Packing Co. No.
KCC.70 (3/8" O.D, x 1/4" ID.) 63X89
85W52 "O" Ring - Linear Co. #1820-27 Comp. 97W30 Bearing - Timken Bearing Co. Single
JAJ-70 (1-3/4" O.D, x 1-1/2" LD.) Row Type TS No. 05075
90W39 Plug Shell - Pyle National Co, Cat. No. 97W31 Bearing Cup - Timken Bearing Co.
APD 2006 Single Row Type TS No. 05185
90W42 Contact - Pyle National Co. 6-Pole Male 97W33 "O" Ring - Precision Rubber Products
Cat. No. AP-610 Corp. No, 902-8 Compound 829-70
SOW79 Plug Shell - Pyle National Co, "PAD" 97W34 Grommet - General Cement Co. Cat.
1504 #1043
90W81 Contact - Pyle National Co. 4-Pole Male 97W36 Bearing - Marlin-Rockwell Corp. Lubri-
Internal Unit Cat, No. PA-415 Seal No, 2035FF-Q7A7
B6W49 Terminal - Aircraft Marine Products 97W39 Oil Seal - The Garlock Packing Co. No.
Co, No. 33643 Heavy Duty Ring Tongue 51X148
(Diamond Grip) 97W41 Stop Nut - Esna Elastic Stop Nut Corp.
97W23 "О" Ring - Precision Rubber Products Cat. No. 21TE-080
Corp. No. 902-7 Compound 829-70 97W73 Bearing - Marlin-Rockwell Corp. Cat.
97 W24 “O” Ring - Precision Rubber Products No. 7203-OSQA7
COMPOSITE HARDWARE LIST
28V13( 95 :1) SHUNT
28V14( 45 :1) SHUNT
WIRE FEED ROLL— NOT SUPPLIED
(SEE NOTE}
FO SUIT
-=--
1
PART NO, DESCRIPTION PART NO, DESCRIPTION
60201028 1/8-in.-27 Socket Headless Steel Pipe 61240473 1/4-in.-20 x 3/4-in. Lg. Socket Head
Plug Steel Capscrew
60201322 3/8-in.-18 Socket Headless Steel Pipe 61334908 No, 10-32 x 1/4-in. Lg. Socket Headless
Plug steel Setscrew Flat Point
60303322 3/8-in.-18 1.P.S, Hex Countersunk Pipe 61340135 3/8-in.-24 x 2-1/2-in. Lg. Socket Head
Plug Steel Capscrew
61201896 No. 8-32 x 2-in. Lg. Round Head Steel 62350001 Roll Pin - Elastic Stop Nut Corp. #59-
Machine Screw 022 -094-0750
61203824 No. 4-40 x 1/4-in. Lg. Fiat Head Steel 62350002 Roll Pin - Elastic Stop Nut Corp, #59-
Machine Screw 022-094-0875
61203979 No. 10-32 x 7/16-in. Lg. Flat Head 62350003 Roll Pin - Elastic Stop Nut Corp. #59-
Steel Machine Screw 022 -094.1000
61209468 1/4-in.-20 x 3/8-in. Lg, Button Head 63200230 5/8-in.-18 Hex Steel Nut
Steel Machine Screw 64200225 5/8-in. 5.A.E. Plain Steel Washer
61234890 No, 8-32 x 1/8-in. Lg. Socket Headless 64200923 1/4-in. Shakeproof Lock Washer (Ex-
Steel Flat Point Setscrew ternal Tooth)
61240083 1/4-in.-20 x 1/2-in, Lg. Socket Head 64203762 3/8-in. Shakeproof Steel Lock Washer
Steel Capscrew #1120 (External Tooth)
61240090 1/4-in.-20 x 1-in. Lg. Socket Head Steel 64306010 Cup Washer #10 Size
Capscrew 73635116 Cord - Simplex - Tirex Type "SO" No.
61240127 3/8-in.-16 x 2-in. Lg. Socket Head Steel 16 Ga. One-Cond. (Series)
Capscrew 73635416 Cord - Simplex - Tirex Type "SO" No.
61240133 3/8-in.-16 x 1-in. Lg. Socket Head Steel 16 Ga. 4-Cond.
Capscrew 77560407 Guard Assembly - Eastman Cat. No.40-G
61240412 3/8-in.-24 x 1-in. Lg. Socket Head Steel 77560408 Body-Cord Guard - Eastman Cat. #40-8
Capscrew 93600020 3/32-in. Dia. Asbestos Wicking 1/4-in.
Lg. (Non Graphited)
WIRE STRAIGHTENING ASSEMBLY-28V55
28V07 (475.1) SERIES
28VOR(475 1) SHUNT
28V09(320:1) SERIES
WIRE FEEDER | 28\10(320.1) миг
ASSEMBLY 28V 11 (145-1) Saves
SEE FIG. 13 284 12(145 :1) SHUNT CAN BE ROTATED
SHOWN FOR ILLUSTRATION
PURPOSES ONLY
a e nn
I
1
pp
I
|
+
NOTE: 28V53 (knurled feed roll) for 3/32 through 3/16-in. wire
Ins. Bushing 29N36
Z29N34 (flat serrated feed rof!) for 4-in. wire. Include ins. Washer 29N35
For faed rolls used with UNIONARC wire feeders, see F-9812.
uo
Lt
FIG. 11 — UEH-2 and USH-2 Welding Head Assembly
18
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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 Calcium Carbide
CARBIC Processed Carbide
OXY-ACETYLENE EQUIPMENT
OXWELD Apparatus for Cutting, Joining,
Treating, and Forming Metals
Acetylene Generators
Manifolds, Regulators and Valves
Welding Rods and Supplies
PREST-O-WELD Welding and Cutting Apparatus
PUROX Welding and Cutting Apparatus
PREST-O-LITE Air-Acetylene Apparatus and Small Tanks
CARBIC Acetylene Generators
ELECTRIC WELDING EQUIPMENT
UNIONMELT Automatic Welding Apparatus and Supplies
HELIARC Welding and Cutting Torches
LINDE Sigma Welding Equipment
SPECIAL EQUIPMENT
LINDE Jet-Piercing Equipment
Plate-Edge Preparation Equipment
Steel-Conditioning Machines
Sub-Zero Cold Treatment Equipment
OXWELD Oxy-Acetylene Cutting Machines
Pressure-Welding 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, and Titania
Fine Alumina Abrasive
Molecular Sieves
The terms “Carbic,” “Heliarc,” “Linde,” “Oxweld,” “Prest-O-tite,” “Prest-O-Weld,” #Purox,
Union, and “Unionmelt‘ are registered.trade-marks of Union Carbide and Carbon Corporation,
LINDE AIR PRODUCTS COMPANY
À DIVISION OF UNION CARBIDE AND CARBON CORPORATION
(Una
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-9756-A IMD J-5334-57
LINDE OFFICES
General Office
30 East 42nd Street, New York 17, N. Y.
Eastern States
BALTIMORE 18, MD., 532 East 25th Street
BOSTON (Needhom Hgts.) 94, Mass., 300 First Avenue
BUFFALO 2, N. Y., 250 Delaware Ave.
CHARLESTON 4 W. Va., 3510 MacCorkle Ave., S.E.
NEW YORK 17, N. Y., 205 East 42nd Street
PHILADELPHIA 22, PA., 1421 North Broad Street
PITTSBURGH 22, PA., 644 The Oliver Building
Central States
CHICAGO 1, ILL., 230 North Michigan Avenue
CINCINNATI 29, OHIO, 709 Melish Avenue
CLEVELAND 14, OHIO, 1300 Lakeside 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 8, MO., 4228 Forest Park Boulevard
Southern States
ATLANTA 1, GA,, 22 Seventh Street, N.F.
BIRMINGHAM 9, ALA., 2900 Cahaba Road
JACKSONVILLE 3, FLA., 2410 Dennis Street
MEMPHIS 5, TENN., 48 West McLemore Avenue
NEW ORLEANS 13, LA., 828-32 Howard Avenve
Southwestern States
DALLAS 1, TEXAS, 2626 Commerce Street
DENVER 9, COLO., 685 South Broadway
HOUSTON 11, TEXAS, 6119 Harrisburg Boulevard
KANSAS CITY 5, MO., 910 Baltimore Avenue
TULSA 3, OKLA., 614 National Bank of Tulsa Bldg.
Western Stafes
LOS ANGELES (Vernon) 58, CALIF., 2770 Leonis Blyd.
PHOENIX, ARIZ., 401 East Buchanan Street
PORTLAND 9, ORE., 1205 Northwest Marshall Street
SALT LAKE CITY 1, UTAH, 436 W. Ninth, South, Street
SAN FRANCISCO 6, CALIF., 22 Battery Street
SEATTLE 4, WASH., 3404 Fourth Avenue, South
SPOKANE 12, WASH., 2023 West Maxwell Avenue
® + 0
in Canada
LINDE AIR PRODUCTS COMPANY
Division of Union Carbide Canada Limited
General Office: 40 St. Clair Ave., E., Toronto 7, Canada
TORONTO 4, ONTARIO, 805 Davenport Road
MONTREAL 30, QUEBEC, 3737 St. James St. W.
VANCOUVER 6, B. C., 1175 Grant Street
ST. BONIFACE, MANITOBA, 733 Tache Avenue
Outside United States and Canada
Linde Department
UNION CARBIDE INTERNATIONAL COMPANY
A Division of Union Carbide and Carbon Corporation
30 East 42nd Street, New York 17, N. ¥., U.S.A.
GENEVA, SWITZERLAND, Union Carbide Europa, 3. A.,
1-3 rue de Chantepoulet
MEXICO 15, D. F. MEXICO, National Carbon-Eveready
5. A., Calzado Mariano Escobedo Мо, 543