General Specifications
The Wilton Square Wheel Belt Grinder,
Models 4103, 4106 and 4126AC, are
designed for grinding, deburring,
chamfering, and internal/external grinding
of small and large parts. The Square
Wheel Belt Grinder can be used to polish
or buff finished parts and grind small
internal radii using available accessories.
Accessory changeover is quick and easy.
Belt tension and tracking are easily
adjustable.
The Square Wheel Belt Grinder is available
in either single speed (Models 4103 and
4106) or variable speed model (Model
4126AC). The variable speed model is
controlled by an inverter that provides belt
speeds ranging from 0 to 6000 SFPM.
3
Specifications
Model 4103
Model 4106
Model 4126AC
Belt Width & Length
2 x 72 Inches
2 x 72 Inches
2 x 72 inches
Belt Speed
4600 SFPM
4600 SFPM
0 - 6000 SFPM
Motor
1 HP, Single Phase, 2 HP, Three Phase,
1750 rpm
1750 rpm
1 HP, 1,750 rpm
Contact Wheel Diameters
1-1/2,3, & 8 inches
1-1/2,3, & 8 inches
1-1/2,3, & 8 inches
Weight
115-125 pounds
120 pounds
120 pounds
- Misuse
of this machine can cause serious injury.
- For safety, machine must be set up, used and
serviced properly.
- Read, understand and follow instructions in the
operator's and parts manual which was shipped with
your machine.
When setting up machine:
- Always avoid using machine in damp or poorly
lighted work areas.
- Always be sure machine is securely anchored to
the floor.
- Always keep machine guards in place.
- Always put start switch in OFF position before
plugging in machine.
When using machine:
- Never operate with machine guards missing.
- Always wear safety glasses with side shields (See
ANSI Z87.1)
- Never wear loose clothing or jewelry.
- Never overreach - you may slip and fall into the
machine.
- Never leave machine running while you are away
from it.
- Always shut off the machine when not in use.
When servicing machine:
- Always unplug machine from electrical power while
servicing.
- Always follow instructions in operators and parts
manual when changing accessory tools or parts.
- Never modify the machine without consulting Wilton
Corporation.
You the stationary power tool userhold the key to safety.
Read and follow these simple rules for best results
and full benefits from your machine. Used properly,
Wilton's machinery is among the best in design and
safety. However, any machine used improperly can
be rendered inefficient and unsafe. It is absolutely
mandatory that those who use our products be
properly trained in how to use them correctly. They
should read and understand the Operators and Parts
Manual as well as all labels affixed to the machine.
Failure in following all of these warnings can cause
serious injuries.
Machinery general safety warnings
4
1. Always wear protective eye wear when operating
machinery. Eye wear shall be impact resistant,
protective safety glasses with side shields which
comply with ANSI Z87.1 specifications. Use of
eye wear which does not comply with ANSI
Z87.1 specifications could result in severe injury
from breakage of eye protection.
2. Wear proper apparel. No loose clothing or
jewelry which can get caught in moving parts.
Rubber soled footwear is recommended for best
footing.
3. Do not overreach. Failure to maintain proper
working position can cause you to fall into the
machine or cause your clothing to get caught
pulling you into the machine.
4. Keep guards in place and in proper working order.
Do not operate the machine with guards removed.
5. Avoid dangerous working environments. Do not
use stationary machine tools in wet or damp
locations. Keep work areas clean and well lit.
6. Avoid accidental starts by being sure the start
switch is OFF before plugging in the machine.
7. Never leave the machine running while unattended. Machine shall be shut off whenever it is
not in operation.
8. Disconnect electrical power before servicing.
Whenever changing accessories or general
maintenance is done on the machine, electrical
power to the machine must be disconnected
before work is done.
9. Maintain all machine tools with care. Follow all
maintenance instructions for lubricating and the
changing of accessories. No attempt shall be
made to modify or have makeshift repairs done to
the machine. This not only voids the warranty but
also renders the machine unsafe.
10. Machinery must be anchored to the floor.
11. Secure work. Use clamps or a vise to hold work,
when practical. It is safer than using your hands
and it frees both hands to operate the machine.
12. Never brush away chips while the machine is in
operation.
13. Keep work area clean. Cluttered areas invite
accidents.
14. Remove adjusting keys and wrenches before
turning machine on.
15. Use the right tool. Don't force a tool or attachment to do a job it was not designed for.
16. Use only recommended accessories and follow
manufacturers instructions pertaining to them.
17. Keep hands in sight and clear of all moving parts
and cutting surfaces.
18. All visitors should be kept at a safe distance from
the work area. Make workshop completely
General Electrical Cautions
This machine should be grounded in accordance
with the National Electrical Code and local codes and
ordinances. This work should be done by a qualified
electrician. The machine should be grounded to
protect the user from electrical shock.
safe by using padlocks, master switches, or by
removing starter keys.
19. Know the tool you are using-its application,
limitations, and potential hazards.
Wire sizes
Caution: for circuits which are far away from the
electrical service box, the wire size must be increased
in order to deliver ample voltage to the motor. To
minimize power losses and to prevent motor overheating and burnout, the use of wire sizes for branch
circuits or electrical extension cords according to the
following table is recommended:
Conductor Length
AWG (American wire gauge) Number
240 Volt Lines
120 Volt Lines
0 - 50 Feet
50 - 100 Feet
Over 100 Feet
No. 14
NO.14
NO.14
NO.14
NO.12
NO.8
Safety requirements for abrasive grinding machines
Abrasive grinding can be hazardous to operators and
bystanders. Grinding sparks, chips and dust particles thrown off by the grinding disc can cause
serious injury by contact or inhalation. To avoid such
injuries you must comply with the following safety
requirements:
1. Always wear protective eyewear when operating
machinery. Eye wear shall be impact resistant,
protective safety glasses with side shields which
comply with ANSI Z87.1. Use of eye wear which
does not comply with ANSI Z87.1 specifications
could result in severe injury from breakage of eye
protection. See Figure A, below.
2. Wear leather safety gloves, arm guards, leather
aprons and safety shoes.
3. A dust collection system is recommended,
Operator shall also wear a dust mask at all times.
See Figure B, below.
4. Additional precautions may be necessary for
grinding materials which are flammable or have
other hazardous properties. You should always
consult the manufacturer of such materials for
instructions on grinding and handling.
5. Do not force or jamb the workpiece into the
grinding disc.
6. Before grinding, always allow the motor to come
up to operating speed, then check the grinding
disc for wobble, runout, or any unbalanced
ABC
'
V;! .
.
condition. If the disc is not operating accurately
and smoothly, immediately stop the motor and
make repairs before attempting any grinding
operations.
7. Abrasive discs must be stored in a controlled
environment area. Relative humidity should be
35% to 50% and the temperature should be
between 60 and 80 degrees Fahrenheit. Failure
to do so could cause premature disc failure.
8. Examine the face of the grinding disc carefully.
Excessive grinding which wears down to the
backing material can tear the disc. Never use a
disc which shows backing, nicks or cuts on the
surface or edge or damage due to creasing or
poor handling.
9. When installing a new disc, be certain the disc is
accurately centered on the drive wheel. Failure to
do so could cause a serious unbalanced condition.
10. Always present the workpiece to the wheel while
resting the workpiece firmly on the table. Failure
to do so could result in damage to the workpiece
or throwing of the workpiece off the wheel.
11. Safety shoes which comply with ANSI Z41.1 shall
be worn. See Figure C.
12. Personal hearing protection such as ear plugs or
ear muffs shall be used to protect against the
effect of noise exposure. See Figure D:
D
5
Introduction
This manual includes operating and maintenance instructions for the Wilton Model 4103, 4106 and 4126AC
Square Wheel Belt Grinder. The manual also includes parts listings and illustrations of replaceable parts.
Refer to Figures 1 and 2 for key features of the Square Wheel Belt Grinder.
Setup and Operation
The Square Wheel Belt Grinder can be mounted on a workbench or an optional pedestal. The grinder should be
secured to the work bench or pedestal using the four holes in the base of the grinder. If the pedestal is used, it in turn
should be anchored to the floor using the for holes in the base of the pedestal
Installationof Work Rest
The work rest mounts on the left side of the head casting. Attach the work rest using the socket head cap
screw provided with the machine.
The slot in the work rest has a lip against which the cap screw is tightened. Place the hole at the end of the
slot over the cap screw. Then slide the rest inward until the work rest is in position in front of the contact
wheel. Tighten the cap screw.
Inverter
Belt Tracking
Adjustment
6
Contact
Wheel
Pedestal
Pedestal
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,
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Figure 1: Square Wheel Grinder Features
(single speed)
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Figure 2: Square Wheel Grinder Features
(variable speed)
Vacuum Connection
Operating Controls
NOTE: A vacuum system integrated with a grinder
stand is available from Wilton.
The ON/OFF switch for the Model 4103/4106 grinder
The grinder uses an adjustable front mounted
vacuum scoop. Refer to Fgure 3. Install the vacuum
system components as follows:
1. Slide the support bracket into the channel
secured to belt grinder base. Install one knob in
the belt grinder base to secure the support
bracket.
NOTE: Refer to vacuum scoop exploded view,
Figure 11 when installing channel.
2. Slide the scoop onto the support bracket. Install
remaining knob in the support bracket to secure
the scoop.
3. Connect hose to exhaust duct and secure with a
clamp.
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~
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~,
is located in a switch box mounted on the drive
motor.
Model 4126AC
NOTE: Refer to Figure 4. Use only the inverter
controls defined in the following procedures. The
inverter is pre-programmed at the factory and
requires no further programming.The controls for
the Model 4126AC grinder are located on the
inverter. The ON/OFF switch is located on the left
side of the inverter. Start the grinder by setting the
ON/OFF switch to ON.
Press the FWD RUN pushbutton on the inverter and
set the speed using the up/down arrow keys (to the
right of the speed display). Press the up arrow to
increase speed; press the down arrow to reduce
speed. The display on the inverter shows drive
motor speed in revolutions per minute. Press the
STOP button on the inverter to stop the grinder.
Then set the ON/OFF switch to OFF.
;'
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Model 4103/4106
\\
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"-~
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1
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FWD (For-
I
ward) Button
~
On!Off/
SWitch
C)
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Knob
support
Bracket
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y
Clamping
Knob
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Scoop
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Figure 3: Vacuum Connection
Electrical Connection
Refer to the Wiring Diagram section for wiring
information. Connection to electrical power should
be made by a qualified electrician. Observe local
electrical codes when connecting the machine.
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~~
(T
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Speed Display '1'
(RPM)
~
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Down
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E3/~LLJUH
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Up
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STOP
Button
01\("
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Figure 4: Operating Controls
(Model 4126AC)
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7
TypicalUsesforthe SquareWheel BeltGrinder
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Flat or angular
stock - Platen
setting is the perfect
angle for high speed,
precision, flat and
level grinding of tools,
knives, plastics, and
other materials. The
platen allows working
to very close tolerances. An adjustable
work rest is standard
on all models.
Shaping- For
grinding and finishing cylindrical
shapes. The yoke
surface conforms to
the shape of the
surface to produce
an even, smooth
finish without the
danger of scarring.
Excellent for tool
post applications.
Roughing Serrated contact
wheel is used for
removing heavy
stock, cleaning up a
weld or snagging a
casting. This durable
8-inch diameter
wheel is used
extensively for hollow
grinding and profiling
knives and other
culinary tools. It is
standard equipment
on all models.
Contouring - Grind
difficult, hard to reach
areas with the 3-inch
by 2-inch or 1-1/2
inch by 2-inch
diameter contact
wheels. Contours
and shapes unique
parts like propellers
and metal furniture.
Polishing - The
buffing pad is perfect
for satin finish or high
gloss polishing. The
fine, close stitched
burring pads are ideal
for metal and plastic
Finishing - The nylon
reinforced, silicone
carbide wheel is
perfect for polishing
and deburring. It
applies a high luster
finish on rough surfaces and is excellent
for steel, iron, or
aluminum.
OPTIONAL FEATURES
~~
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~~
8
Internal contouring
- The air-cushioned
dead head is for use
on very small radius
grinding. When
connected to a source
of shop air (80-90
psi), the belt rides on
a cushion of air to
decrease head and
belt wear. The dead
head is easy to use,
and adapts to any of
the available radius
tips.
Internal contouring with
small wheel - This small
wheel accessory is
designed for hard to reach
places. Includes S/8-inch,
70 durometer contact
wheel. Available contact
wheels are 1/2-inch, 3/4inch, and 1-inch.
Maintenance
Installation
Cleaning
WARNING: BE SURE TO SET ON/OFF SWITCH
OFF TO AVOID PERSONAL INJURY.
1. Refer to Figure 6. Lower the tension lever to
release belt tension.
2. Loosen upper guard knob and swing guard
back for clearance.
3. Loosen the contact wheel shaft clamping
screw on the head casting.
4. Remove contact wheel (see Replacement of
Contact Wheel).
5. Install pivot shaft of platen in head casting.
Position platen as desired.
A. For grinding flat or angular work
pieces, position the platen with the platen
surface facing outward.
B. For grinding of cylindrical work pieces,
position the platen with the "yoke" side
facing outward.
C. Set at desired angle.
6. Tighten clamping screw.
7. Lift tension lever to set belt tension.
8. Lower and adjust position of upper guard.
Tighten the upper guard knob.
Shutoff the machine before cleaning. Keep the exterior
of the machine clean and free of chips. Use a brush for
cleaning. Periodically empty grinding dust and particles
from the dust collection system.
Lubrication
Lubrication of the grinder is not required. The drive
motor and contact wheel are fitted with sealed bearings.
Replacement of Contact
Wheel
WARNING:BE SURE TO SET ON/OFF SWITCH TO
OFF TO AVOID PERSONAL INJURY.
1. Refer to Figure 5. Lower the tension lever to release
belt tension.
2. Loosen upper guard knob and swing guard back for
clearance.
3. Loosen the contact wheel shaft clamping screw on
the head casting.
4. Remove the contact wheel assembly.
5. Remove retaining rings from wheel shaft.
6. Remove shaft and wheel bearings.
7. Install bearings in replacement contact wheel.
8. Install shaft and secure with retaining rings.
9. Install contact wheel shaft in head casting.
10. Tighten clamping screw.
11. Lift tension lever to set belt tension.
12. Lower and adjust position of upper guard. Tighten
the upper guard knob.
Tension
Upper Guard
Lever
\
of Platen
\ \\
\
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\
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Platen
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9
Upper Guard Knob
Clamping
Screw
Figure 6: Installation of Platen
Figure 5: Replacement of Contact Wheel
Replacement of GrindingBelt
WARNING: DO NOT OPERATE THE MACHINE
WITH THE SIDE PANEL OPEN. DISCONNECT
ELECTRICAL POWER TO THE MACHINE BEFORE
PERFORMING ANY MAINTENANCE.
1. Refer to Figure 7. Lower the belt tension lever to
release tension on the belt.
2. Loosen the knob on the left side of the machine
and raise upper guard. Turn the knob on the side
panel and lower the side panel.
3. If required, loosen work rest to provide clearance
for belt removal.
4. Remove the belt from the drive wheel, idler wheel,
and contact wheel. Install the replacement belt
over the drive wheel, idler wheel, and contact
wheel.
5. Raise the belt tension lever to tighten the belt
against the wheels. Tighten the belt until it is just
taut. A moderate tension will provide faster
cutting, longer belt life, and better tracking. Do not
over-tension the belt.
6. Check belt tracking by spinning the drive wheel by
hand. Adjust tracking if required. (Refer to
Checking Belt Tracking.)
Idler Wheel
"
/y\
Upper
~GUard
/
2. Spin the drive wheel by hand and check
tracking of the belt. If the belt tracks either right
or left, adjustment is required.
3. Use an Allen wrench to change the alignment of
the idler wheel. Turn the idler adjustment screw
clockwise to cause the belt to track right. Turn
the idler adjustment screw counterclockwise to
cause the belt to track left.
4. Close side panel and secure by turning the
knob on the panel. Lower the upper belt guard
and secure with the knob on the left side of the
grinder.
5. Connect electrical power and start the grinder.
Check belt tracking (the belt should be centered
on the contact wheel.
6. If required, adjust belt tracking to center the belt
on the contact wheel. Turn the idler adjustment
screw clockwise to move the belt to the right.
Turn the idler adjustment screw counterclockwise to move the belt to the left.
NOTE:
Do not turn tracking adjustment
screw beyond its limits or the adjustment
mechanism will be damaged.
7. If the belt does not track properly, increase belt
tension. Repeat steps 1 through 6.
Replacement of Inverter
(Referto Figure8)
WARNING: DISCONNECT ELECTRICAL POWER TO
THE MACHINE BEFORE PERFORMING ANY MAINTENANCE.
Drive
Wheel
10
~
Contact
Wheel
Side
Panel
Figure 7: Replacement of Grinding Belt
BeltTracking
WARNING: DO NOT OPERATE THE MACHINE
WITH THE SIDE PANEL OPEN. DISCONNECT
ELECTRICAL POWER TO THE MACHINE BEFORE
PERFORMING ANY MAINTENANCE.
1. Loosen the knob on the left side of the machine
and raise upper guard. Turn the knob on the side
panel and lower the side panel.
1. Disconnect electrical power.
2. Remove access panel on front of inverter. Disconnect inverter wiring.
3. Remove four screws (1) and four nuts (6) from
inverter (2). Separate inverter (2) from mount (4).
4. Install replacement inverter (2) and secure with
four screws (1) and four nuts (6).
5. Connect electrical wiring (refer to Wiring Diagram
section for connections).
6. Start belt grinder and check for proper operation.
NOTE: Inverter is pre-programmed at the factory,
further programming is not required.
0
0
Ref Part
No. Number
1
5550874
2
5507817
5507818
5511447
3
9129921
4
5
5507932
9119481
Description
Screw, Socket head
Cap, 10-32NF x 3/8
Inverter (1-phase,
120V, 50/60 Hertz)
Inverter (1or 3-phase,
220V, 50/60 Hertz)
Inverter (3-phase,
440V, 50/60 Hertz)
Screw, Socket Head Cap,
1/2-13 x 1
Mount, Inverter
Terminal, Full Closed
Qtv.
4
1
1
1
1
Ref. Part
No. Number
6
5508073
7
5507934
8
9052271
Description
Nut, Lock, 10-32 Nylock
Box, Switch
Screw, Socket Head Cap
10-32NF x 3/8
9
9119721
10
11
12
13
14
7117401
----------9085061 Dial, ON-OFF
9119071 Grip, Cord
5628371 Lock Washer, 1/2
Qty.
4
1
5
Spade, Female
16-14 AWG
Switch, Toggle
4
1
1
2
1
Figure 8: Replacement of Inverter and Switch
11
Replacement of Switch
WARNING: DISCONNECT ELECTRICAL POWER TO THE MACHINE BEFORE PERFORMING ANY
MAINTENANCE.
1.
2.
3.
4.
Refer to Figure 8. Disconnect electrical power.
Remove screws securing switch box. Lift away switch box to gain access to switch terminals.
Disconnect wiring from terminals on switch.
Remove nut from switch. Install replacement switch and and secure with nut (provided with switch).
Connect electrical wiring (refer to Wiring Diagram section for connections).
5. Install switch box and secure with screws.
6. Start belt grinder and check for proper operation.
Troubleshooting
Problem
Probable
Poor Tracking
1.
2.
3.
4.
Cause
Improper belt splice.
Excessive belt tension.
Insufficient belt tension.
Worn contact surfaces.
5. Misaligned contact surfaces.
6. Lack of crown on drive wheel.
7. Worn bearings.
Suggested
Remedy
1.
2.
3.
4.
Check belt for irregular seam or shape.
Set tension so belt is just taut.
Set tension so belt is just taut.
Check elastomer on contact wheels.
Replace worn wheels.
5. Check alignment of drive wheel and
contact wheels. The drive pulley and
contact wheel must be aligned. To
adjust drive wheel, loosen set screws
and move drive wheel in or out on
motor shaft as required. To adjust
contact wheel, loosen shaft clamping
screw and move contact wheel in or out
as required.
6. Check for 1/16-inch crown. Replace
drive wheel if crown is not present.
7. Check all bearings for overheating or
damage. Replace worn or damaged
bearings.
Slack Belt
1. Insufficient belt tension.
1. Set tension so belt is just taut.
Contact Wheel Wear
1. Excessive belt tension.
2. Grinding in one area on belt.
1. Set tension so belt is just taut.
2. Use entire work surface of belt when
ever possible.
3. Periodically clean interior of grinder.
3. Excessive grinding deposits
on belt and debris in machine.
Short Belt Life
1. Excessive grinding pressure.
1. Allow the belt to do the cutting.
Excessive pressure dulls the belt and
removes the grit from the belt.
12
Replacement Parts
This section provides exploded view illustrations that show the replacement parts for the Wilton Models 4103,
4106 and 4126AC Square Wheel Belt Grinder. Also provided are parts listings that show part number, description and quantity. The item numbers on the illustration relate to the item number in the facing page of the
parts listing.
Order replacement parts from:
Wilton Corporation
300 South Hicks Road
Palatine, IL 60067
847/934-6000
FAX: 847/934-7813 or 1-800-626-9676
Identify the replacement part by the part number shown in the parts listing. Be sure to include the model
number and serial number of your machine when ordering replacement parts to assure that you will receive
the correct part.
en
..c
44
NOTE: Refer to Figure 8
for Inverter Mounting Parts
c:
42
Q)
40 3941\
38
39
n--
i
CD
:::r
CD
CD
-
32
OJ
CD
-
..-+
4
I
2
I
3
28
2~
27... II
:::J
a.
CD
\
\
2.1
G)
-.
I
m
I
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\
><
"'C
I@~(~l;p
-
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26
I
25
0
a.
CD
a.
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21
20
CD
:E
19
......
c.u
......
.j:>.
Ref. Part
No. Number
1
Contact Wheel Assembly,
8 x 2 Sertd, 90 D (Standard)
Contact Wheel Assembly,
8 x 2 Serrated, 50 Duro
Contact Wheel Assembly,
8 x 2 Smooth, 50 Duro
Contact Wheel Assembly,
10 x 2 Serrated, 90 Duro
1
1
9112801
Contact Wheel Assembly,
1.5 x 2 Smooth, 90 Duro
Contact Wheel Assembly,
3 x 2 Serrated, 90 Duro
Screw, Flat Head Cap
Idler Wheel
Bearing
Retaining Ring, Internal
Retaining Ring, External
Contact Wheel,
8 x 2 Sertd, 90 D (Standard)
Contact Wheel,
8 x 2 Serrated, 50 Duro
Contact Wheel,
8 x 2 Smooth, 50 Duro
Contact Wheel,
10 x 2 Serrated, 90 Duro
Shaft, 8 x 10 Wheel
Retaining Ring, External
Abrasive Belt, 2 x 72, 50 grit
Optional Grit Abrasive Belts
(10 piece minimum order)
2"X72" 36 Grit - Abrsv Belt
9112911
2"X72" 60 Grit - Abrsv Belt
9112821
2"X 72" 80 Grit - Abrsv Belt
5507530
5510942
5510943
5510944
2
5044590
3
5044610
3A 9049821
4
5507582
5
9100331
6
9074011
7
9074081
8
5053221
5510946
5510947
5510948
9
10
11
Description
Oty.
5053231
9074381
9112811
Ref. Part
No. Number
9112831
Description
Oty.
Optional Grit Abrasive Belts
(Continued from left column)
(10 piece minimum order)
2" X 72" 120 Grit - Abrsv Belt
9112921 2"X 72" 180 Grit - Abrsv Belt
9112931
2"X 72" 220 Grit - Abrsv Belt
9112941 2"X 72" 320 Grit - Abrsv Belt
12
13
14
15
1
2
1
2
2
2
1
1
1
1
(Abrasive Belts - Continued in right column)
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
5044400 Platen Casting
5044410 Work Rest Casting
5044370 Head Casting
9128441 Screw, Socket Head Cap
3/8-16 x 1
5049990 Screw, Work Rest
9129881 Screw, Socket Head Cap
3/8-16 x 5/8
9055361 Flat Washer, Nylon
1/2 I.D. x 1 O.D.
9129861 Screw, Socket Head Cap,
Full Thread, 3/8-24 x 3
5046571 Bearing, Idler Housing
9055381 Flat Washer, Nylon, 3/8
9010271 a-Ring, 1/2
5044651 Cap, Idler Housing Pin
9133041 Set Screw, Socket Head
1/4-20 x 1/4
5046560 Lever, Tension
9133191 Set Screw, Nylon Tipped
5/16-18 x 3/4
9129561 Locknut, Hex, 3/8-24
9059811 Roll Pin, 3/16 x 1-1/2
5053301 Shaft, Idler Pulley
5541241 Switch (Model 4103 only)
5644231 Manual Motor Starter
(Model 4106 only)
(Parts List
- Continued
Next Page)
1
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
1
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1
(Parts List - Continued From Previous Page)
Ref. Part
No. Number
31
9066821
9066831
5508076
32
33
34
9070361
9070781
9128671
35
36
37
9114320
5044511
9054541
38
5630451
39
40
41
42
43
44
45
46
5077041
9070381
5630061
5507583
5055311
9070371
5507584
9057461
Qty.
Description
Motor & Switch, 1 HP,
Single Phase (Model 4103)
Motor, 2 HP, 3 Phase
(Model 4106)
Motor, 1 HP, 3-Phase
(Model 4126AC only)
Knob, Hand
Nut, Allen, 5/16-18
Bolt, Hex Head, w/Nylock
3/8-16 x 3/4
Key, 3/16 x 3/16 x 1-1/4
Pulley, Drive
Set Screw, Socket Head
5/16-18 x 1/2
Screw, Socket Head Hex
5/16-18 x 1-1/2
Lock Washer, 5/16
Latch, Cam
Nut, Hex, 5/16-18
Washer, Nylon 5/16
Door
Knob, Hand
Guard
Washer, Flat
0.26 x 0.63 x 0.06
......
CJ1
1
1
1
4
1
1
2
1
2
1
1
2
1
1
1
1
WiringDiagrams
MOTOR
50/60
hZ
115/
208/230V
13/68/65
AMPS
['
J
'--0
0
8
4
5
(()
3
NOTE
TO REVERSE
MOTOR,
SwITCH
LEADS 5 ~ 8
c'
~S
4
?:
6
,/
Model 4103
220\ 440 VAC
3 Ph 60 H2
Motor Starter
u
220V - 5510376
440V - 9150081
Under Volt Trio
Ll3
i~
,
GRND
r-~--,
I
I
I
I
LOW VOLTAGE
TRIP COIL
-'--
nL2
I
,
ON
OFF
220V - 5507320
440V
Manual
stader
- 5507334
Motor
Enclosnre
5507320
~-,
'i--1II'
~)
16
MOTOR
Model 4106
2HP
220/440
3 Ph 60 H2
INVERTER
5507817
5507818
5511447
120V
220V
440V
INPUT VDL T AGE
MDToR VDL T AGE
1 PH 50/60
HZ
220
1,3 PH 50/60
HZ
220
3 PH 50/60
HZ
440
r--HDUSING
GRDUND
JUNCTION
BDX
2~O
-
230 VAC
b
5
440 VAC
4
9~7
INVERTER
~
J
GREEN
BLACK
l \/HITE
GREEN
GREEN
GRND
BLACK
\/HITE
3~ 2~ ~i 3r 2r
230VAC
RED
M2
M3
PHASE
4
~
440 VAL
L2
230
5
gb sb L
L1
N1
Model 4126AC
6
'wHITE
BLACK
:
r1
Vacuum
Scoop Exploded View
The vacuum scoop connects the machine to the vacuum system. The mounting provisions for the scoop are
shown in Figure 11. An exploded view of the scoop is also provided in Figure 11.
1
4
17
Ref.
Ref.
No.
Part Number DescriDtion
Otv.
No.
Part Number DescriDtion
1
5053531
Scoop Weldment
1
12
5511373
Base
Oty.
1
2
5052470
Adapter, Hose
1
13
9056411
Nut, Hex Jam (10-32)
3
4
5507534
Clamp, Hose 3 in.
1
5
5507533
1
14
9062171
Screw, SHCS
2
6
9128241
Hose, 3 x 5" x 5 ft
HHCS 10-32 x 5/8
3
7
9070361
Knob
2
8
5053571
Rail
1
9
9032961
Nut - Nylock 5/16
4
10
5507583
Washer, Nylon 5/16
12
11
5053581
Channel
1
(5/16-18 X 7/8)
15
5501116
Figure 11: Vacuum Scoop Exploded View
SCREW, SHCS
(5/16-18 X 1-1/2)
2
Air Cushioned Dead Head Assembly
Refer to Figures 14 and 15. The air-cushioned dead
head is for use on very small radius grinding. When
connected to a source of shop air (80-90 psi), the
belt rides on a cushion of air to decrease head and
belt wear. The dead head is easy to use, and
adapts to any of the available radius tips.
"~~,~~)
.
\(\ -"'\
~\j\
1'\
f7C5/\i
)
~./
c
Ref. Part
No. Number
l
1
5044960
2
3
4
5044970
5044991
5045011
5045031
5045051
5045071
5
5044610
6
7
5045101
9062441
8
9049761
:
~
"~!bI~
c>
If
,
II,.
~'~
~ F~~~:~-:~,-2V\
Figure 14: Internal Contouring
with Air Cushioned Dead Head
Install the dead head assembly as follows:
WARNING: DISCONNECT ELECTRICAL POWER
TO THE MACHINE BEFORE INSTALLING THE
DEAD HEAD ASSEMBLY.
18
1. lower tension lever to release belt tension.
2. loosen clamping screw and remove platen or
contact wheel.
3. Insert the shaft of the dead head assembly in
head casting. Position dead head assembly with
the tip parallel with the machine base. Tighten
the clamping screw.
4. Install the belt under the dead head contact
wheel and over the dead head tip.
5. Lift the tension lever to tighten the belt.
6. Check belt tracking.
7. Connect pressurized air supply (80-90 psi).
8. Check operation of the dead head assembly.
Description
Air Cushion Dead Head
Assembly (Note 1)
Casting, Dead Head
Tip, Dead Head, 3/16 R x 2
Tip, Dead Head, 1/4 R x 2
Tip, Dead Head, 5/16 R x 2
Tip, Dead Head, 3/8 R x 2
Fitting, Flareless Compression, 1/4 x 1/8
Contact Wheel Assembly
3x2
Spacer
Screw, Socket Head Cap
10-32 x 1/2
Screw, Socket Head Flare
Qty.
1
1
1
1
1
1
1
1
1
2
1
Note 1: Includes 3/8 R x 2 dead head tip 5045051.
Other tips available at additional cost.
Figure 15: Air Cushioned Dead
Head Assembly Parts Breakdown
Hub and Wheel Assembly
Refer to Figures 16 and 17. The hub and wheel
assembly Small Diameter Contact Wheels
can be used to adapt a number of other optional
attachments for use on the belt grinder. The assembly consists of a pre-balanced hub shaft, collar, and
V-belt and a special wrench to enable quick change
of the optional attachments.
~~~"~~
)!
1/
~
"'-./
C,
\
Hub Shaft
j
!
~\ \\!"10~
\\1/ G~~~i! 1'\
jJ 1/
f??
@J J-"
~~~
fj
I
~
~
( ~ ,,~
I
C'~~
l~~~/<
I
r: ]
-~ -
I~
I
!
V-Belt
~~
j
JI
\.
.
\)
...
'.
~~-:;,
_/
4
I
~
f!
i
l
(
I
Ref. Part
No. Number
1
5054920
2
3
4
5045141
5058071
5044620
\
!/\ \
"
\.J
.
II
Figure 16: Polishing with
Hub and Wheel Assembly
Description
Hub and Wheel Assembly
(Includes Hub Shaft, V-Belt,
Collar, and Special Wrench)
Polishing Wheel
Spacer Plate
Buffer Pad
Qty.
1
1
2
1
Figure 17: Hub and Wheel Assembly
Install the hub and wheel assembly as follows:
WARNING: DISCONNECT ELECTRICAL
POWER TO THE MACHINE BEFORE INSTAllING THE HUB AND WHEEL ASSEMBLY.
1. lower tension lever to release belt tension.
2. loosen clamping screw and remove platen
or contact wheel.
3. Remove work rest.
3. Insert the shaft of the hub in head casting.
Tighten the clamping screw.
4. Install the V-belt around the idler wheel, drive
wheel, and wheel of hub and wheel assembly.
5. Raise tension lever to tighten belt.
6. Install polishing wheel or buffing pad as
follows:
A. Install one spacer plate on threaded
shaft.
B. Install polishing wheel or buffing pad.
C. Install second spacer plate and collar.
D. Tighten collarusing special wrench.
19
Small Diameter Contact Wheels
Small diameter contact wheels are useful for grinding
or contouring difficult, hard to reach areas (refer to
Figure 18).
W
PO
~I~
-
~
::::...~.~
/~)I
~)~\~~
,
/
(0
\...
~
(-~
'{~OO~'
" --J I
.~
I
\
I
I
~n
\
I\J
I
\
Figure 18: Contouring Using Small
Diameter Contact Wheel
20
The small diameter contact wheels are available in
several sizes. Refer to Figure 19 for a listing of small
diameter contact wheels.
Part Number
Description
1/2
5057871
Contact Wheel, 70 Duro
5/8
5057881
Contact Wheel, 70 Duro
3/4
5057891
Contact Wheel, 70 Duro
1
5057901
Contact Wheel, 70 Duro
Figure 19: Small Diameter Contact Wheels.