Jet J-4103 Service manual

Operating Instructions and Parts Manual
Square Wheel Belt Grinder
Models: J-4103, J-4126AC
Model J-4126AC
WALTER MEIER (Manufacturing) Inc.
427NewSanfordRoad
LaVergne,Tennessee37086 Part No. M-577000
Ph.:800-274-6848 Revision A3 01/2011
www.waltermeier.com Copyright ©2011 Walter Meier(Manufacturing)Inc.
Model J-4103

Warranty and Service
Walter Meier (Manufacturing) Inc., warrants every product it sells. If one of our tools needs service or repair, one of our
Authorized Service Centers located throughout the United States can give you quick service. In most cases, any of these
Walter Meier Authorized Service Centers can authorize warranty repair, assist you in obtaining parts, or perform routine
maintenance and major repair on your JET® tools. For the name of an Authorized Service Center in your area call 1-800-
274-6848.
MOREINFORMATION
Walter Meier is consistently adding new products to the line. For complete, up-to-date product information, check with your
local Walter Meier distributor, or visit waltermeier.com.
WARRANTY
JET products carry a limited warranty which varies in duration based upon the product (MW stands for Metalworking, WW
stands for Woodworking).
WHAT IS COVERED?
This warranty covers any defects in workmanship or materials subject to the exceptions stated below. Cutting tools,
abrasives and other consumables are excluded from warranty coverage.
WHOISCOVERED?
This warranty covers only the initial purchaser of the product.
WHATISTHEPERIODOFCOVERAGE?
The general JET warranty lasts for the time period specified in the product literature of each product.
WHAT ISNOT COVERED?
Three Year, Five Year and Lifetime Warranties do not cover products used for industrial or educational purposes.
Products with Three Year, Five Year or Lifetime Warranties that are used for industrial or education purposes revert to a
One Year Warranty. This warranty does not cover defects due directly or indirectly to misuse, abuse, negligence or
accidents, normal wear-and-tear, improper repair or alterations, or lack of maintenance.
HOWTO GET SERVICE
The product or part must be returned for examination, postage prepaid, to a location designated by us. For the name of
the location nearest you, please call 1-800-274-6848.
You must provide proof of initial purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection discloses a defect, we will repair or replace the product, or refund the purchase price, at our option. We
will return the repaired product or replacement at our expense unless it is determined by us that there is no defect, or that
the defect resulted from causes not within the scope of our warranty in which case we will, at your direction, dispose of
or return the product. In the event you choose to have the product returned, you will be responsible for the shipping and
handling costs of the return.
HOW STATE LAWAPPLIES
This warranty gives you specific legal rights; you may also have other rights which vary from state to state.
LIMITATIONS ON THISWARRANTY
WALTER MEIER (MANUFACTURING) INC., LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED
WARRANTYFOR EACHPRODUCT.EXCEPTASSTATEDHEREIN,ANYIMPLIEDWARRANTIES OR MERCHANTABILITY
ANDFITNESSAREEXCLUDED.SOMESTATESDO NOTALLOWLIMITATIONS ONHOWLONGTHE IMPLIEDWARRANTY
LASTS,SO THEABOVELIMITATIONMAYNOTAPPLYTOYOU.
WALTERMEIER(MANUFACTURING) INC., SHALLIN NO EVENTBE LIABLE FOR DEATH, INJURIESTO PERSONSOR
PROPERTY, OR FOR INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGESARISING FROM THE
USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIALDAMAGES,SOTHEABOVELIMITATIONOR EXCLUSION MAYNOTAPPLYTOYOU.
Walter Meier sells through distributors only. The specifications in Walter Meier catalogs are given as general information
and are not binding. Members of Walter Meier reserve the right to effect at any time, without prior notice, those alterations
to parts, fittings, and accessory equipment which they may deem necessary for any reason whatsoever. JET® branded
products are not sold in Canada by Walter Meier.

3
Table of Contents
CoverPage .........................................................................................................................................1
GeneralSpecifications.........................................................................................................................4
Operating Precautions .........................................................................................................................5
SetupandOperation............................................................................................................................7
Maintenance ......................................................................................................................................10
WiringDiagrams ................................................................................................................................12
ReplacementParts ............................................................................................................................13
Troubleshooting.................................................................................................................................13
Accessories .......................................................................................................................................17

4
GeneralSpecifications
The JET Square Wheel Belt Grinder,
Models J-4103 and J-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 (Model J-4103) or
variablespeedmodel (Model J-4126AC).
The variable speed model is controlled by
an inverter that provides belt speeds
ranging from 0 to 6000 SFPM.
Specifications Model J-4103 Model J-4126AC
StockNumber 577000 577001
Belt Width & Length 2 x 72 Inches 2 x 72 inches
BeltSpeed 4600SFPM 0 - 6000 SFPM
Motor 1 HP, Single Phase, 1 HP, 1,750 rpm
1750rpm
ContactWheel Diameters 1-1/2, 3, & 8 inches 1-1/2, 3, & 8 inches
Weight 115-125pounds 120 pounds
Model J-4103
Model J-4126AC

5
- 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.
You — the stationary power tool user—
hold the key to safety.
Readand followthese simple rulesfor bestresults
andfull benefits fromyour machine. Usedproperly,
JET machinery is among the best in design and
safety. However, any machineused improperlycan
berendered inefficientand unsafe. It isabsolutely
mandatory that those who use our products be
properly trained in how to use them correctly. They
shouldread andunderstand theOperators andParts
Manualas wellas all labels affixed tothe machine.
Failure in following all of these warnings can cause
serious injuries.
Machinery general safety warnings
- 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 modifythe machine withoutconsulting Walter
Meier(Manufacturing),Inc.
1. Always wear protective eye wear when operating
machinery. Eye wear shall be impact resistant,
protectivesafety glasseswith 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.
Rubbersoled 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 themachine runningwhile 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. Maintainall machinetools withcare. 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 adjustingkeys andwrenches 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
manufacturersinstructions pertainingto them.

6
A B C D
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
safe by using padlocks, master switches, or by
removing starter keys.
19. Know the tool you are using—its application,
limitations, and potential hazards.
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.
Wire sizes
Caution: for circuits which are far away from the
electrical service box, the wire size must be in-
creased 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:
AWG (American wire gauge) Number
Conductor Length 240 Volt Lines 120 Volt Lines
0 - 50 Feet No. 14 No. 14
50 - 100 Feet No. 14 No. 12
Over 100 Feet No. 14 No. 8
Abrasive grinding can be hazardous to operators and
bystanders. Grinding sparks, chips and dust par-
ticles 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
Safety requirements for abrasive grinding machines
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:

7
Introduction
Thismanualincludes operatingandmaintenance instructions forthe JET ModelJ-4103and J-4126ACSquare
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.
Figure 2: Square Wheel Grinder Features
(variablespeed)
Figure 1: Square Wheel Grinder Features
(singlespeed)
Setupand Operation
The Square Wheel Belt Grinder can be mounted on a work bench 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. (Refer to Assembly
of Pedestal for machinesthat are to be pedestal-mounted.)
Installation of 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.
BeltTension Lever
Motor
Switch
Upper
Guard
BeltTracking
Adjustment
Contact
Wheel
Work
Rest
Pedestal
BeltTracking
Adjustment
Pedestal
Contact
Wheel
Upper
Guard
Motor
Inverter
ON/OFF
Switch
Work
Rest

8
Vacuum Connection
NOTE: A variety of vacuum system options
are available. (Refer to Accessories section.)
The grinder uses a front mounted vacuum system.
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 ducted 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.
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.
Model4126AC
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.
Figure 4: Operating Controls
(Model4126AC)
Operating Controls
Model J-4103
TheON/OFF switch forthe ModelJ-4103 grinder is
located in a switch box mounted on the drive motor.
Clamping
Knob
Clamping
Knob
Scoop
Support
Bracket
SpeedDisplay
(RPM)
STOP
Button
FWD (For-
ward) Button
On/Off
Switch
Up
Down

9
Typical Uses for the Square Wheel Belt Grinder
Flat or angular
stock — Platen
setting is the perfect
angle for high speed,
precision, flat and
level grinding of
tools, knives, plas-
tics, and other
materials. The platen
allows working to
very close toler-
ances. An adjustable
work rest is standard
on all models.
Shaping — For
grinding and finish-
ing 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 — Ser-
rated contact wheel is
usedfor removing
heavystock, cleaning
up a weld or snag-
ging a casting. This
durable 8-inch
diameter wheel is
used extensively for
hollow grinding and
profiling knives and
other culinary tools.
It is standard equip-
ment 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.
OPTIONALFEATURES
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 5/8-inch,
70 durometer contact
wheel. Available contact
wheels are 1/2-inch, 3/4-
inch, and 1-inch.
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 sur-
faces and is excellent
for steel, iron, or
aluminum.

10
Maintenance
Cleaning
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
fromthe dustcollection 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 SURETO SETON/OFF SWITCH TO
OFFTOAVOID PERSONALINJURY.
1. Refer to Figure 5. Lower the tension lever to release
belttension.
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 contactwheel assembly.
5. Remove retaining ringsfrom wheelshaft.
6. Remove shaft andwheelbearings.
7. Install bearings inreplacement contactwheel.
8. Install shaft and secure with retaining rings.
9. Install contact wheel shaft in head casting.
10. Tighten clampingscrew.
11. Lift tensionlever toset belttension.
12. Lower and adjust position of upper guard. Tighten
the upper guard knob.
Figure 5: Replacement of Contact Wheel
Installationof Platen
WARNING: BE SURETO SETON/OFF SWITCH
OFFTOAVOIDPERSONALINJURY.
1. Refer to Figure 6. Lower the tension lever to
releasebelt tension.
2. Loosen upper guard knob and swing guard
back for clearance.
3. Loosen the contactwheel shaftclamping screw
on the head casting.
4. Remove contact wheel(seeReplacement of
Contact Wheel).
5. Install pivot shaft of platen in head casting.
Positionplaten as desired.
A. For grinding flat or angular work
pieces,position theplaten with theplaten
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 clampingscrew.
7. Lift tension leverto setbelt tension.
8. Lower and adjust position of upper guard.
Tightenthe upperguard knob.
Figure6: Installation of Platen
UpperGuard
UpperGuard Knob
Clamping
Screw
Contact
Wheel
Head
Casting
Tension
Lever
Platen
Clamping
Screw
Pivot
Shaft
Work
Rest

11
Replacement of Grinding Belt
WARNING: DONOTOPERATETHEMACHINE WITH
THESIDE PANELOPEN. DISCONNECTELECTRI-
CALPOWERTOTHE MACHINE BEFOREPERFORM-
INGANYMAINTENANCE.
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 replace-
ment 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.)
Figure 7: Replacement of Grinding Belt
Checking Belt Tracking
WARNING: DONOTOPERATETHE MACHINE WITH
THESIDE PANELOPEN. DISCONNECTELECTRI-
CALPOWERTOTHE MACHINE BEFOREPERFORM-
INGANYMAINTENANCE.
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.
2. Spin the drive wheel by hand and check track-
ing of the belt. If the belt tracks either right or
left,adjustment isrequired.
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 counterclock-
wise 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 cen-
tered 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.
7. If the belt does not track properly, increase belt
tension. Repeat steps 1 through 6.
Replacementof Inverter
WARNING: DISCONNECTELECTRICALPOWER
TOTHEMACHINEBEFOREPERFORMINGANY
MAINTENANCE.
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 opera-
tion.
NOTE: Inverter is pre-programmed at the factory,
further programming is not required.
Idler Wheel
Grinding
Belt
Contact
Wheel Side
Panel
Drive
Wheel
Upper
Guard

12
WiringDiagrams
ModelJ-4103
Model4126AC

13
Troubleshooting
Problem Probable Cause Suggested Remedy
PoorTracking 1. Improper belt splice. 1. Check belt for irregular seam or shape.
2. Excessive belttension. 2. Set tension so belt is just taut.
3. Insufficient belt tension. 3. Set tension so belt is just taut.
4. Worn contact surfaces. 4. Check elastomer on contact wheels.
Replace worn wheels.
5. Misaligned contact surfaces. 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. Lack of crown on drive wheel. 6. Check for 1/16-inch crown. Replace
drive wheel if crown is not present.
7. Worn bearings. 7. Check all bearings for overheating or
damage. Replace worn or damaged
bearings.
SlackBelt 1. Insufficient belt tension. 1. Set tension so belt is just taut.
Contact Wheel Wear 1. Excessive belttension. 1. Set tension so belt is just taut.
2. Grinding in one area on belt. 2. Use entire work surface of belt when
ever possible.
3. Excessive grinding deposits 3. Periodically clean interior of grinder.
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.
ReplacementParts
Thissection provides explodedview illustrationsthat show thereplacement parts forthe JETModels J-4103 and
J-4126ACSquare WheelBelt Grinder. Also providedare partslistings thatshow partnumber,descriptionand
quantity. The item numbers on the illustration relate to the item number in the facing page of the parts listing.
Orderreplacementparts from:
WALTER MEIER (Manufacturing) Inc.
427NewSanfordRoad
LaVergne,Tennessee37086
Phone:[phone]
Identify the replacement part by the part number shown in the parts listing. Be sure to include the model
numberand serialnumber of yourmachine whenordering replacement partsto assurethat you willreceive the
correctpart.

14
Exploded View - Square Wheel Belt Grinder
45

15
Parts List - Square Wheel Belt Grinder
Ref. Part
No. Number Description Qty.
Ref. Part
No. Number Description Qty.
1 5510944 Contact WheelAssy, 10 x 2 Serrat, 90 Duro 1
5510943 Contact WheelAssy, 8 x 2 Smooth, 50 Duro 1
5510942 Contact WheelAssy, 8 x 2 Serrated, 50 Duro 1
2 5044590 Contact WheelAssy, 1-1/2 x 2 1
3 5044610 Contact Wheel Assy, 3 x 2 1
3A 9049821 Screw,FlatHead Cap 2
4 5507582 IdlerWheel 1
5 9100331 Bearing 2
6 9074011 Retaining Ring, Internal 2
7 9074081 RetainingRing,External 2
8 5510946 Contact Wheel, 8 x 2 Serrated, 50 Duro 1
5510947 Contact Wheel, 8 x 2 Smooth, 50 Duro 1
5510948 Contact Wheel, 10 x 2 Serrated, 90 Duro 1
9 5053231 Shaft, 8 x 10 Wheel 1
10 9074381 RetainingRing, External 1
11 9112811 Abrasive Belt, 2 x 72, 50 Grit (Standard -
optional grit below) (10 piece minimum order) 1
12 J-5044400 PlatenCasting 1
13 J-5044410 Work Rest Casting 1
14 J-5044370 HeadCasting 1
15 9128441 Screw, Socket Head Cap 3/8-16 x 1 1
16 5049990 Screw, Work Rest Machine 1
17 9129881 Screw, Socket Head Cap 3/8-16 x 5/8 2
18 9055361 Flat Washer, Nylon 1/2 I.D. x 1 O.D. 1
19 9129861 Scr, Socket Head Cap, Fll Thrd, 3/8-24 x 3 1
20 5046571 Bearing,IdlerHousing 1
21 9055381 Flat Washer, Nylon, 3/8 2
22 9010271 O-Ring,1/2 1
23 5044651 Cap,Idler Housing Pin 1
24 9133041 Set Screw, Socket Head 1/4-20 x 1/4 1
25 5046560 Lever,Tension 1
26 9133191 Set Screw, Nylon Tipped 5/16-18 x 3/4 1
27 9129561 Locknut,Hex, 3/8-24 1
28 9059811 Roll Pin, 3/16 x 1-1/2 1
29 5053301 Shaft,Idler Pulley 1
30 5541241 Switch(Model 4103only) 1
31 9066821 Motor & Switch, 1 HP, 1-Phase (J-4103) 1
5508076 Motor,1HP,3-Phase (J-4126AC only) 1
32 9070361 Knob,Hand 1
33 9070781 Nut,Allen,5/16-18 1
34 9128671 Bolt, Hex Head, w/Nylock 3/8-16 x 3/4 4
35 9114320 Key, 3/16 x 3/16 x 1-1/4 1
36 5044511 Pulley, Drive 1
37 9054541 Set Screw, Socket Head 5/16-18 x 1/2 2
38 5630451 Screw, Socket Head Hex 5/16-18 x 1-1/2 1
39 5077041 Lock Washer, 5/16 2
40 9070381 Latch,Cam 1
41 5630061 Nut,Hex, 5/16-18 1
42 5507583 Washer,Nylon 5/16 2
43 5055311 Door 1
44 9070371 Knob,Hand 1
45 J-5044630 GuardFlapAssembly 1
46 9057461 Washer, Flat 0.26 x 0.63 x 0.06 1
47 5046600 TrackingLeaderAssembly 1
48 J-5046540 Casting,IdlerHousing 1
49 J-5541030 MainFrameAssembly 1

16
Ref. Part
No. Number Description Qty.
1 5550874 Screw, Socket head 7
Cap, 10-32NF x 3/8
2 5507817 inverter (1ph, 120V, 50/60Hz) 1
5507818 Inverter (3ph, 220V, 50/60Hz)
5511447 Inverter (3ph, 440V, 50/60Hz)
3 9128571 Screw, Hex Head 1/2-13 x 1 1
4 5515215 Mount,Inverter 1
5 9119481 Terminal,FullClosed 1
Parts List - Inverter
6 5508073 Nut, Lock, 10-32 Nylock 4
7 5507934 Box, Switch 1
9 9119721 Spade,Female 16-14AWG 4
10 9117401 Switch,Toggle 1
12 9085061 Dial,ON-OFF 1
13 9119071 Grip, Cord 2
14 5628371 Lock Washer, 1/2 1
Ref. Part
No. Number Description Qty.

17
Exploded View - Vacuum Scoop
A vacuum scoop connects the machine to the vacuum system. The mounting provisions for the scoop are
showninthe exploded viewbelow.
1
2
3
4
5
6
7
8
9
10
11
10
12 10
12
15
7
14
13
Ref. Part
No. Number Description Qty.
1 5053531 ScoopAssembly 1
2 5052471 Adapter,Hose 1
3 5053601 Reducer, 4 x 3 in. 1
(Woodworkers)
5053611 Reducer, 4 x 3 in. 1
(Metal Workers)
4 5507534 Clamp, Hose 3 in. 1
5 5507533 Hose, 3 x 5 in. 1
6 9128241 Screw, HH Cap 3
7 9070361 Knob 2
Ref. Part
No. Number Description Qty.
8 5053571 Rail 1
9 9032961 Lock Nut, Nylon Insert 4
10 9055411 Washer, Nylon 8
11 5053581 Channel 1
12 9057391 Washer, Flat 2
13 9056411 Nut, HexJam 3
14 9062111 Screw, SHCS (5/16-18 X 3/4) 2
15 9146801 Screw, SHCS Low Head 2
(5/16-18 X 1 1/2)
Vacuum ScoopExploded View
Accessories

18
Assembly of Pedestal
Unpacking
The grinding machine pedestal is shipped separately
from the grinding machine. Transport the shipping
containers to the installation site before unpacking.
Unpackthepedestaland grinding machine.Locateand
open the plastic bag containing four 5/16-18 socket
head cap screws. Verify that that there are two screws
1-inch long and two screws 1-3/4 inches long (Figure
16, View A).
Securing the Pedestal
WARNING: BOLTING THE PEDESTAL TO THE
FLOOR IS STRONGLY RECOMMENDED. THE
PEDESTAL IS BOLTED TO THE FLOOR TO
ELIMINATE THE POSSIBILITY OF TIP-OVER
WHILE THE MACHINE IS BEING OPERATED.
FAILURE TO DO SO CAN RESULT IN INJURY
TO THE OPERATORAND/OR OTHER NEARBY
PERSONNEL.
The pedestal has four mounting holes in its base.
Usethese mountingholes to securethe pedestalto
the floor before installing the grinder. Shims should
beused tolevel the pedestal before theattaching
boltsare tightened.
Assembly
WARNING: THE MACHINE MOUNTING PLATE IS
NOT CENTERED ON THE LEG OF THE PEDES-
TAL. THIS OFFSET EVENLY DISTRIBUTES
THEWEIGHT OF THE GRINDING MACHINE.
MAKESURETHE GRINDING MACHINE IS
CORRECTLYPOSITIONEDAND SECURED TO
THEPEDESTALBEFORE LEAVINGTHEMA-
CHINEUNATTENDED. FAILURETOCORRECTLY
POSITIONANDSECURETHEMACHINECOULD
RESULT IN THE MACHINE TIPPING OVER,
CAUSINGINJURYTOPERSONNEL.
Figure 15: Contouring Using Small
Diameter Contact Wheel
Therearefour mountingholesin the mountingplateon
thepedestal.Theholesonthemotorsideofthemachine
are approximately 20 inches apart. The holes on the
belt-guardsideofthemachinearelocatedapproximately
½-inch from the corners of the plate. When correctly
installed,allfour screw holesinthe machine baseplate
and belt guard will align with the holes in the mounting
plateof the pedestal.
Mounting Procedure
A. Using twopeopleor a hoistingdevice,lift the grind-
ing machine and set it on the pedestal. Align all
four screw holes in the machine base plate and
belt guard with the holes in the mounting plate of
the pedestal (Figure 16, View B).
B. Open thegrindingbelt guard door(Figure16, View
C). Install two 5/16-18 x 1-inch long screws in the
base of the grinding belt guard. Install screws
finger-tight.
C. Install the two 5/16-18 x 1-3/4-inch long screws in
the screw holes on the motor side of the machine
base (Figure 16, View D). Tighten all four screws.
Accessories
Belt Grinder Pedestal
Theoptional pedestalenables the SquareWheel Belt
Grinderto be mountedin a freestanding configuration
ratherthan on a work bench. Thegrinder is secured
to the pedestal using the four holes in the base of the
grinder -follow thebelow instructions.

19
Figure16: Assembly of Grinding Machineand Pedestal
AB
CD
MotorSide
Holes
20 inches
apart
BeltGuardHoles
Approximately
1/2-inch from
corners
Installtwo 1-
inch long
screws
1
23
2
Installtwo
1 3/4-inch
screws
3
Ref. No. PartNumber Description Qty.
1J-524808Pedestal1
2 9062121 Socket Head Cap Screw (5/16-18 x 1) 2
3 5511051 Socket Head Cap Screw (5/16-18 x 1 3/4) 2

WALTER MEIER (Manufacturing) Inc.
427NewSanfordRoad
LaVergne,Tennessee37086
Ph.:800-274-6848
www.waltermeier.com