OM-CWF-23E-01-2013
OPERATION MANUAL
for
CWF-23E-9900
Dabber-Type Wire Feeder
January 2013
Preliminary Manual
IMPORTANT
Read this manual carefully before installing,
commissioning or operating this product.
Jetline Engineering, 15 Goodyear Street, Irvine, CA 92618
Telephone: (949) 951-1515 • Fax: (949) 951-9237
Web Site: www.jetline.com • E-mail: [email protected]
CWF-23E Dabber-Type Wire Feeder
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CWF-23E Dabber-Type Wire Feeder
LIMITED WARRANTY
Jetline Engineering, of Irvine, California, U.S.A., warrants all new equipment to be free from defects
in material and workmanship for the period of one (1) year, provided that the equipment is installed
and operated according to instructions.
Jetline Engineering’s obligation under this warranty is expressly limited to replacing or repairing
any defective part or correcting any manufacturing defect without charge during the warranty period,
if Jetline’s inspection confirms the existence of such defects. Jetline’s option of repair or replacement
will be F.O.B. factory at Irvine, California, and therefore no compensation for transportation costs of
any kind will be allowed.
The warranty period begins on the date of sale to the original-purchase user of the equipment.
Jetline Engineering will not be liable for any loss or consequential damage or expense accruing
directly or indirectly from the use of equipment covered by this warranty.
This warranty supersedes all previous Jetline warranties and is exclusive with no other guarantees or warranties expressed or implied.
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CWF-23E Dabber-Type Wire Feeder
NOTICE
The installation, operation and maintenance guidelines set out in this manual will enable you to
maintain the equipment in peak condition and achieve maximum efficiency with your welding operation. Please read these instructions carefully to become aware of every advantage.
CAUTION
Only experienced personnel familiar with
the operation and safe practice of welding
equipment should install and/or use
this equipment.
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CWF-23E Dabber-Type Wire Feeder
Table of Contents
Section I
�����������������������������������������������������������������������������������������������������������������������������������������1
Safety Precautions................................................................................................................... 1
A.
Arc Welding.................................................................................................................. 1
B.
Electric Shock............................................................................................................... 1
C.
Arc Rays........................................................................................................................ 2
D.
Fumes and Gases........................................................................................................... 2
E.Cylinders....................................................................................................................... 2
F.Welding......................................................................................................................... 3
G.
Moving Parts................................................................................................................. 3
H.
EMF Information.......................................................................................................... 3
I.
Principal Safety Standards............................................................................................ 4
Section II
�����������������������������������������������������������������������������������������������������������������������������������������5
Introduction............................................................................................................................. 5
A.
Description of Dabber-type Wire Feed Action............................................................. 5
Section III..................................................................................................................................... 7
Specifications........................................................................................................................... 7
A.
System Components..................................................................................................... 7
B.
Operating Specifications............................................................................................... 7
Section V
���������������������������������������������������������������������������������������������������������������������������������������11
Maintenance........................................................................................................................... 11
Section VI ���������������������������������������������������������������������������������������������������������������������������������������13
Parts Lists.............................................................................................................................. 13
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CWF-23E Dabber-Type Wire Feeder
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CWF-23E Dabber Type Wire Feeder
Section I
Safety Precautions
2.
Wear dry, hole-free insulating gloves and
appropriate body protection.
WARNING
3.Disconnect input power before installing or
servicing this equipment. Lockout/tagout
input power according to OSHA 29 CFR
1910.147 (see Safety Standards).
CALIFORNIA PROPOSITION 65 WARNING
This product contains chemicals, including lead,
known to the state of California to cause cancer,
and birth defects or other reproductive harm.
Wash hands after use. §248224
A.
4.Properly install and ground this equipment
according to the operation manual and
national, state and local codes.
5.Always verify the supply ground-check and
be sure that input power cord ground wire
is properly connected to ground terminal
in disconnect box or that cord plug is connected to a properly grounded receptacle
outlet.
Arc Welding
Arc Welding can be hazardous. Protect yourself and others from possible serious injury or
death. Keep children away. Pacemaker wearers keep away until consulting your doctor.
6.When making input connections, attach
proper grounding conductor first - doublecheck connections.
In welding, as in most jobs, exposure to certain
hazards occurs. Welding is safe when precautions are taken. The safety information given
below is only a summary of the more complete
safety information that will be found in the
Safety Standards listed at the end of this section.
Read and follow all Safety Standards.
Frequently inspect input power cord for
7.
damage or bare wiring. Replace cord immediately if damaged - bare wiring can kill.
8.
9.If earth grounding of the workpiece is required,
ground it directly with a separate cable - do not
use work clamp or work cable.
Have all installation, operation, maintenance
and repair work performed only by qualified
people.
B.
10.Do not touch electrode if you are in contact
with the work, ground, or another electrode
from a different machine.
Electric Shock
Touching live electrical parts can cause fatal
shocks or severe burns. The electrode and work
circuit is electrically live whenever the output is
on. The input power circuit and machine internal
circuits are also live when power is on. When
using mechanized wire feed, the wire, wire reel,
drive roll housing and all metal parts touching
the welding wire are electrically live. Incorrectly
installed or improperly grounded equipment is
a hazard.
1.
Turn off all equipment when not in use.
11.Use only well-maintained equipment.
Repair or replace damaged parts at once.
Maintain unit according to manual.
12. Wear a safety harness if working above
floor level.
13.Keep all panels and covers securely in
place.
14.Clamp work cable with good metal-tometal contact to workpiece or worktable
as near the weld as practical.
Do not touch live electrical parts.
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CWF-23E Dabber Type Wire Feeder
C.
4.Read the Material Safety Data Sheets
(MSDS) and the manufacturer’s instruction for metals, consumables, coatings,
cleaners, and degreasers.
Arc Rays
Arc rays can burn eyes and skin; noise can
damage hearing; flying slag or sparks can injure
eyes.
5.Work in a confined space only if it is well
ventilated, or while wearing an air-supplied respirator. Always have a trained
watch person nearby.
Arc rays from the welding process produce
intense visible and invisible (ultraviolet and
infrared) rays that can burn eyes and skin. Noise
from some processes can damage hearing. Chipping, grinding and weld cooling throw off pieces
of metal or slag.
6.Do not weld in locations near degreasing,
cleaning, or spraying operations. The
heat and rays of the arc can react with
vapors to form highly toxic and irritating
gases.
1.Use approved ear plugs or ear muffs if
noise level is high.
2.Use a welding helmet fitted with a proper
shade of filter to protect your face and
eyes when welding or watching.
7. Do not weld on coated metals, such as
galvanized, lead or cadmium plated steel,
unless the coating is removed from the
weld area, the area is well ventilated,
and if necessary, while wearing an airsupplied respirator. The coatings and any
metals containing these elements can give
off toxic fumes if welded.
3.Wear approved safety glasses with side
shields.
4.Use protective screens or barriers protect
others from flash and glare; warn others
not to watch the arc.
E.Cylinders
5.Wear protective clothing made from
durable, flame-resistant material (wool
and leather) and foot protection where
necessary.
D.
Cylinders can explode if damaged.
Shielding gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode.
Since gas cylinders are normally part of the
welding process, be sure to treat them carefully.
Fumes and Gases
Fumes and gases can be hazardous to your
health.
1.Protect compressed gas cylinders from
excessive heat, mechanical shocks, slag,
open flames, sparks, and arcs.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health.
2.Install cylinders in an upright position by
securing to a stationary support or cylinder rack to prevent falling or tipping.
1.Keep your head out of the fumes. Do not
breathe the fumes.
2.If inside, ventilate the area and/or use
exhaust at the arc to remove welding
fumes and gases.
3.Keep cylinders away from any welding
or other electrical circuits.
4.Never weld on a pressurized cylinder
- explosion will result.
3.If ventilation is poor, use an approved
air-supplied respirator.
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CWF-23E Dabber Type Wire Feeder
5.Use only correct shielding gas cylinders,
regulators, hoses and fittings designed for
the specific application; maintain them
and associated parts in good condition.
6.Do not weld on closed containers such
as tanks, drums, or pipes, unless they are
properly prepared according to AWSF4.1
(see safety Standards).
6.Turn face away from valve outlet when
opening cylinder valve.
7. Keep protective cap in place over valve
except when cylinder is in use or connected for use.
7.Connect work cable to the work as close
to the welding area as practical to prevent
welding current traveling long, possibly
unknown paths and causing electric
shock and fire hazards.
8.Read and follow instructions on compressed gas cylinders, associated equipment, and CGA publication P-1 listed in
Safety Standards.
8.Wear oil-free protective garments such
as leather gloves, heavy shirt, cuffless
trousers, high shoes, and a cap.
G.
F.Welding
Moving parts, such as fans, rotors, and belts can
cut fingers and hands and catch loose clothing.
Welding can cause fire or explosion.
Moving Parts
1.Keep all doors, panels, covers, and guards
closed and securely in place.
Welding on closed containers, such as tanks,
drums, or pipes, can cause them to blow up.
Sparks can fly off from the welding arc. The
flying sparks, hot workpiece, and hot equipment
can cause fires and burns. Accidental contact of
electrode to metal objects can cause sparks, explosion, overheating, or fire. Check and be sure
the area is safe before doing any welding.
2.Have only qualified people remove
guards or covers for maintenance and
troubleshooting as necessary.
H.
EMF Information
Considerations About Welding and the Effects of Low Frequency Electric and Magnetic
Fields
1.Protect yourself and others from flying
sparks and hot metal.
The following is a quotation from the General
Conclusions Section of the U.S. Congress, Office of Technology Assessment, Biological
Effects of Power Frequency Electric & Magnetic Fields - Background Paper, OTA-BP-E-53
(Washington, DC: U.S. Government Printing
Office, May 1989):
2.Do not weld where flying sparks can
strike flammable material.
3.Remove all flammables within 35 ft. (10.7
m) of the welding arc. If this is not possible, tightly cover them with approved
covers.
4.Be alert that welding sparks and hot materials from welding can easily go through
small cracks and openings to adjacent
areas.
5.Watch for fire, and keep a fire extinguisher nearby.
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CWF-23E Dabber Type Wire Feeder
I.
“.... there is now a very large volume of scientific
findings based on experiments at the cellular
level and from studies with animals and people
which clearly establish that low frequency
magnetic fields can interact with, and produce
changes in, biological systems. While most of
this work is of very high quality, the results are
complex. Current scientific understanding does
not yet allow us to interpret the evidence in a
single coherent framework. Even more frustrating, it does not yet allow us to draw definite
conclusions abut questions of possible risk or to
offer clear science-based advice on strategies to
minimize or avoid potential risks.”
Principal Safety Standards
Reference as applicable
Safety in Welding and Cutting, ANSI Standard
Z49.1, from American Welding Society, 550
N.W. LeJeune Rd, Miami, FL 33126
Safety and Health Standards, OSHA 29 CFR
1910, from Superintendent of Documents, U.S.
Government Printing Office, Washington, D.C.
20402
National Electric Code, NFPA Standard 70 from
National Fire Protection Association, Batterymarch Park, Quincy, MA 02269
To reduce magnetic fields in the work place, use
the following procedures:
1.Keep cables close together by twisting or
taping them.
Recommended Safe Practices for the Preparation for Welding and Cutting of Containers That
Have Held Hazardous Substances, American
Welding Society Standard AWS F4.1, from
American Welding Society, 550 N.W. LeJeune
Rd, Miami, FL 33126
2.Arrange cables to one side and away from
the operator.
3.Do not coil or drape cables around the
body.
4.Keep welding power source and cables
as far away as practical.
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, from Compressed Gas
Association, 1235 Jefferson Davis Highway,
Suite 501, Arlington, VA 22202
5.Connect work clamp to workpiece as
close to the weld as possible.
About Pacemakers:
Code for Safety in Welding and Cutting, CSA
Standard W117.2, from Canadian Standards
Association, Standards Sales, 178 Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3
The above procedures are among those also
normally recommended for pacemaker wearers.
Consult your doctor for complete information.
Sales Practices for Occupation and Educational
Eye and Face Protection, ANSI Standard Z87.1,
from American National Standards Institute,
1430 Broadway, New York, NY 10018
Cutting and Welding Processes, NFPA Standard
51B, from National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269
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CWF-23E Dabber Type Wire Feeder
Section II
Introduction
Figure 3:
The Jetline CWF-23E dabber type wire feeder
is designed to be controlled by the 9900 Controller and can be used with the GTAW or PAW
process.
At the moment when the welding current goes “Low”, the wire feed speed is
reversed and the wire is retracted away
from the welding puddle at the Pullback
Speed, programmed in the Configuration screen. The Retract distance is
programmed in the Weld Program Editor
screens.
Please refer to the 9900 Controller manual for
more programming details.
A. Description of Dabber-type
Wire Feed Action
Figure 4:
The dabber-type wire feed can be described as a
4-step process when the action is synchronized
with the weld current pulse. The figures on the
following page will help to understand it more
clearly.
During the “Low” portion of the weld
current, the pulse wire is in the retracted
position and not moving.
On the next pulse of the weld current, the entire
process is repeated which results in controlled
wire feed only during the “High” portion of the
weld current pulse.
Figure 1:
Wire is retracted from the weld puddle.
At the moment when the weld current
goes “High”, wire is advanced towards
the welding puddle at the programmed
Pullback Speed, or at ½ this speed if
the Digital Wire Feed configuration is
in Config 1. If in Config 0, the wire advances at the same speed as the Pullback
Speed (see below).
Figure 2:
After reaching the welding puddle,
the wire feed speed is changed to a
programmed value and wire is fed into
the weld during the “High” time of the
welding current pulse. For example, at
a frequency of 3 Hz and a duty cycle of
50%, this time will be approximately 160
msec.
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CWF-23E Dabber Type Wire Feeder
DABBER WIRE FEEDER OPERATION
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CWF-23E Dabber Type Wire Feeder
Section III
Specifications
A.
B.
System Components
The CWF-23 Dabber type wire feeder will accurately feed 0.020”, 0.030”, 0.035”, 0.045”,
0.062” and 0.093” (0.5 to 2.4 mm) hard and soft
wires for mechanized TIG or plasma welding.
The system consists of a D.C. motor-driven two
feed roll assembly, spool adapter, and a wire
guide positioner. The positioner incorporates
X-Y-Z movements of the wire tip. The positioner
includes a universal torch mounting bracket.
The basic components of the wire feeder are:
1.Wire drive unit: consists of motor, drive
housing, and wire spool assembly to feed
wire. (Part number CWF-10A-130.)
2.WGP-3 or WGP-1 Wire Guide Positioner:
guides wire into puddle.
Note: The WGP-1wire guide positioner
(available as an alternate) can be used either as a left hand or right hand assembly.
To change configuration as supplied by
factory, reverse thumb knob, set screw,
and spring. (See WGP-1 drawing, item
numbers 13, 18, and 24.)
4.Spool adapter: holds 12” (305 mm) diameter wire spools.
5.Wire Feed Accessory Kit: conduit, feed
rolls, inlet guides, outlet guides, and tips
for 0.020”, 0.030”, 0.035”, 0.045”, 0.062”
and 0.093” (0.5 to 2.4 mm) hard and soft
wire. Order kits separately for desired
wire size.
-7-
Operating Specifications
Wire Feed Speed:
2 to 150 IPM
51 to 3810 mm/min
Pulsing Frequency:
0.5 to 12 pulses/second
CWF-23E Dabber Type Wire Feeder
Spoolholder
0.31
(8)
5.25
(133)
2
(51)
13.375
(340)
8
(203)
0.375
(9.5)
22
(560)
6
(152)
TWO ROLL DRIVE HOUSING
Dimensions are in inches (millimeters)
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CWF-23E Dabber Type Wire Feeder
Section IV
Wire Feed Accessory Kits
Wire Size
0.020”
(0.5 mm)
0.030”
(0.8 mm)
0.035”
(0.9/1 mm)
0.045”
(1.2 mm)
0.062”
(1.6 mm)
0.093”
(2.4 mm)
*Complete Conduit - 6
Outlet
Inlet Guide Wire Guide Feed Rolls **Curved
Accessory
ft (2 m)
Guide
Tip
& Inlet
Wire Guide
Kit
Guide
Tip
10A6020K 42-23
OG-020
056192
WGT-020 087131
N/A
PT-40-NAT
10A6030K 44N3545
OG-035-45 056192
WFT-030
079594
CWGT-030
10A6035K
44N3545
OG-035-45 056192
WGT-035
079595
CWGT-035
10A6045K
44N3545
OG-035-45 056193
WGT-045
079956
CWGT-045
10A6062K
45N116
OG-062
056195
WGT-062
079598
N/A
10A6093K
18630F
OG-17
056196
WGT-093
079603
N/A
*Includes inlet and outlet guides, feed rolls, wire guide tip, and 6 ft (2 m) conduit.
**Requires WGP-3 wire guide positioner for curved tips.
Wire Feed Roll Kits, parts and optional items are sold separately.
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CWF-23E Dabber Type Wire Feeder
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CWF-23E Dabber Type Wire Feeder
Section V
Maintenance
Periodically clean the drive rolls of dirt and
chips. Occasionally check the wear of liners,
tips and guides.
Always replace fuse with one of equal value — 3
amp fast blow.
Periodically check, and replace if necessary, the
carbon brushes on the motor. Failure to replace
worn brushes could cause severe damage to
motor control.
WARNING
Maintenance and electrical work must be
performed by experienced and trained personnel.
CAUTION
Whenever repairs are required, always turn
all power controls off and disconnect all electrical cables from power supply.
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CWF-23E Dabber Type Wire Feeder
- 12 -
CWF-23E Dabber Type Wire Feeder
Section VI
Parts Lists
The following parts lists are included in this
manual. Their appropriate page numbers are
listed:
The following pages provide a detailed parts
list of all the elements of the CWF-23E. They
are arranged so the parts list on the right hand
page corresponds to the assembly illustrated on
the left hand page. Item numbers shown in the
parts list refer to those numbers contained in the
balloon in the drawing. The quantities shown
are the number of items used in that particular
assembly.
CWF-23E...............................................14-15
9900-MCMD-1......................................16-17
WGP-3...................................................18-19
WGP-1...................................................20-21
Two columns are included in the list to show
the spare parts which are recommended to be
stocked by the user. The two levels can be defined as follows:
Level 1These are the spares recommended
for US domestic users whose use of
the product does not exceed 2000
hours per year.
Level 2These are the spares recommended
for international use of the product or
for US domestic users who will use
the product in excess of 2000 hours
per year.
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CWF-23E Dabber Type Wire Feeder
- 14 -
CWF-23E Dabber Type Wire Feeder
CWF-23E
Dabber-Type Wire Feeder Assembly
Recommended
ItemPartLevelLevel
No.No.
Description
Qty
I
II
2
3
7/16-14x11/4
4
7/16
5
HWF-17-131
6
CWF-23D-6
7 455502
8
CWF-23D-8
9
10
11
CWF-23D-11
12
5/16-18x3/4
13
CWF-23-13
14
CWF-23-14
15
TLY-A220
16
1/4-20x1/2
17
1/4
18
1/4
19
9376K147
20
5/16-18x11/4
21
5/16
22
5/16
23
CWF-23D-23
24
CWF-23D-100
Drive Housing...........................................................1
Hex. Head Screw......................................................2
Lock Washer.............................................................2
Shaft detail................................................................1
Spacer Detail.............................................................1
Bearing......................................................................1
Half Coupling detail..................................................1
Polyurethane Insert...................................................1
Drive Bracket detail..................................................1
Button Head Screw...................................................2
Base detail.................................................................1
Coupling Spacer detail..............................................2
Motor........................................................................1
Hex. Head Screw......................................................1
Lock Washer.............................................................1
Flat Washer...............................................................1
Rubber Stud Bumper.................................................8
Socket Head Screw...................................................8
Flat Washer...............................................................8
Lock Washer.............................................................8
Rubber Bumper Support...........................................1
Mounting Plate detail................................................1
- 15 -
CWF-23E Dabber Type Wire Feeder
- 16 -
CWF-23E Dabber Type Wire Feeder
9900-MCMD-1
Motor Control Module
Recommended
PartLevelLevel
No.
Description
Qty III
9900-10-U
EL-50T
PSA15LN3-050
PBA10F-24
23F230
AGC-10
20VK1
37N1998
2098-DSD-010
Interface Board with CPU.........................................111
Fiber Optic Media Converter....................................111
Power Supply, 5VDC................................................111
Ref. Desig. PS1
Power Supply, 24 VDC.............................................111
Ref. Desig. PS2
Switch, Toggle, SPST...............................................1
Ref. Desig. SW1
Fuse, 1 1/4”, 10 Amp, 250V.....................................133
Ref. Desig. F1
RF Filter, 250V, 20 Amp...........................................1
Ref. Desig. RF1
Pilot Light, 120V, Red..............................................111
Ref. Desig. PL1
Brushless Servo Drive...............................................111
Ref. Desig. MC1
- 17 -
- 18 WGP-3
D
4/10/08
COMPACT WIRE GUIDE POSITIONER,
FOR COLD WIRE FEEDERS
CWF-23E Dabber Type Wire Feeder
CWF-23E Dabber Type Wire Feeder
WGP-3
Compact Wire Guide Positioner
Recommended
ItemPartLevelLevel
No.No.
Description
Qty
I
II
2
WGP-3-2
3
WGP-3-3
4
WGP-3-4
5
WGP-3-5
6
WGP-1-250
7 WGP-1-240
8
WGP-3-8
9
WGP-3-9
10
WGP-3-10
11
WGP-3-11
12
13
XX-68
14
L-35
15
2813
16
CL-1-KHS
17
CL-6-KHS
18
CL-2-SLB
19
1/4-20x3/4
20
1/4
21
1/420
22
1/4-20x2 1/4
23
1/8x3/4
24
CWGT
25
3025
Base Detail................................................................1
Yoke Detail...............................................................1
Slide Detail................................................................1
Rotor Detail...............................................................1
V-Block Detail..........................................................21
Stud...........................................................................2
Pin Detail..................................................................1
Clamp Detail.............................................................1
Tube Detail................................................................1
Spacer Detail.............................................................1
Fender Washer...........................................................1
Compresion Pin.........................................................11
Compresion Pin.........................................................11
Compresion Pin.........................................................1
Knurled Head Screw.................................................111
Knurled Head Screw.................................................111
Button, radius loc......................................................1
Socket Head Screw...................................................322
Flat Washer...............................................................1
Hex Nut.....................................................................1
Hex Head Screw.......................................................1
Roll Pin.....................................................................1
Curved Wire Guide Tip Detail..................................1
Knob..........................................................................211
- 19 -
- 20 -
4/14/08
L
WGP-1
WIRE GUIDE POSITIONER
CWF-23E Dabber Type Wire Feeder
CWF-23E Dabber Type Wire Feeder
WGP-1 (Rev L)
Wire Guide Positioner - (Available as an alternate)
Recommended
ItemPartLevelLevel
No.No.
Description
Qty
I
II
2 WGP-1-230
Base...........................................................................1
3
WGP-1-100 (REV E) Cam Plate..................................................................1
4 WGP-1-200
Housing.....................................................................1
5
WGP-1-210 (REV E) Bar.............................................................................1
6 WGP-1-220
Clamp........................................................................1
7
WGP-XXX
Shown for Reference (part of Wire Feed Kit)
8 WGP-1-240
Stud...........................................................................2
9 WGP-1-250
V-Block.....................................................................21
10
Guide, Dowell...........................................................1
11
Fulcrum Pin, Dowell.................................................1
12
Hinge Pin, Dowell.....................................................1
13
CL-1-KHS
Knurled Head Screw.................................................111
14
CL-1-KN
Knurled Nut..............................................................111
15
CL-1-SB
Swing Bolt................................................................1
16
WGP-1-16
Lift Pin......................................................................1
17
6655K13
Thrust Bearing..........................................................1
18
VV-38
Compression Spring..................................................11
19
1/4-20x7/8
Socket Head Screw...................................................2
20
1/4-20x5/8
Socket Head Screw...................................................222
21
1/4
Flat Washer...............................................................1
22
11256
Compression Spring..................................................11
23
3025
Knob..........................................................................211
24
3/8-16-5/16
Nylock Set Screw......................................................1
25
WGP-1-260
V-Mount (Optional Item, Large Clamp Kit).............1
26
WGP-1-261
V-Clamp (Optional Item, Large Clamp Kit).............1
27
WGP-1-262
Stud (Optional Item, Large Clamp Kit)....................2
28
1/4-20-5/8
Socket Head Screw...................................................2
29
WGP-1-263
Base Extension (Optional Item, extended base).......1
Socket Head Screw (Optional Item, extended base).....2
30
1/4-20x3/4
31
6435K12
Collar, 1/4 diameter...................................................1
32
6391K143
Bronze Bearing, 1/4 x 1/2 x 1...................................1
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