Grizzly Grinder H8126 User Manual

MODEL H8126

WIDE WHEEL GRINDER

OWNER'S MANUAL

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

#BL8859 PRINTED IN CHINA

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Table of Contents

INTRODUCTION............................................................................................................................... 2

Foreword .................................................................................................................................... 2

Contact Info................................................................................................................................ 2

Data Sheet ................................................................................................................................. 3

Identification ............................................................................................................................... 4

SECTION 1: SAFETY....................................................................................................................... 5

Safety Instructions for Machinery............................................................................................... 5

Additional Safety Instructions for Grinders................................................................................. 7

SECTION 2: CIRCUIT REQUIREMENTS ........................................................................................ 8

110V Operation.......................................................................................................................... 8

SECTION 3: SET UP........................................................................................................................ 9

Set Up Safety............................................................................................................................. 9

Items Needed for Setup............................................................................................................. 9

Unpacking .................................................................................................................................. 9

Inventory................................................................................................................................... 10

Hardware Recognition Chart.................................................................................................... 11

Site Considerations.................................................................................................................. 12

Mounting................................................................................................................................... 12

Tool Rest and Eye Shield ........................................................................................................ 13

Test Run................................................................................................................................... 14

SECTION 4: OPERATIONS ........................................................................................................... 15

Operation Safety ...................................................................................................................... 15

Grinding Tips............................................................................................................................ 15

Wheel Care .............................................................................................................................. 16

Wheel Selection ....................................................................................................................... 16

Wheel Inspection...................................................................................................................... 17

Wheel Dressing........................................................................................................................ 17

Wheel Replacement................................................................................................................. 17

SECTION 5: ACCESSORIES......................................................................................................... 19

SECTION 6: MAINTENANCE ........................................................................................................ 20

Schedule .................................................................................................................................. 20

Grinding Wheels....................................................................................................................... 20

Maintenance Log...................................................................................................................... 21

SECTION 7: SERVICE ................................................................................................................... 22

Troubleshooting........................................................................................................................ 22

Wiring Diagram ........................................................................................................................ 23

Parts Breakdown...................................................................................................................... 24

Parts List .................................................................................................................................. 25

WARRANTY AND RETURNS........................................................................................................ 26

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INTRODUCTION

Contact Info

Foreword

If you have any comments regarding this manual,

please write to us at the address below:

We are proud to offer the Model H8126 Wide

Wheel Grinder. This machine is part of a grow-

ing Grizzly family of fine woodworking and met-

alworking machinery. When used according to

the guidelines set forth in this manual, you can

expect years of trouble-free, enjoyable operation

and proof of Grizzly’s commitment to customer

satisfaction.

Grizzly Industrial, Inc.

Technical Documentation Manager

P.O. Box 2069

Bellingham, WA 98227-2069

Email: [email protected]

The specifications, drawings, and photographs

illustrated in this manual represent the Model

H8126 when the manual was prepared. However,

owing to Grizzly’s policy of continuous improve-

ment, changes may be made at any time with no

obligation on the part of Grizzly.

We stand behind our machines. If you have any

service questions or parts requests, please call or

write us at the location listed below.

Grizzly Industrial, Inc.

1203 Lycoming Mall Circle

Muncy, PA 17756

Phone: (570) 546-9663

Fax: (800) 438-5901

For your convenience, we always keep current

Grizzly manuals available on our website at www.

grizzly.com. Any updates to your machine will be

reflected in these manuals as soon as they are

complete. Visit our site often to check for the lat-

est updates to this manual!

E-Mail: [email protected]

Web Site: http://www.grizzly.com

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Identification

Figure 1. Model H8126 identification.

A. Eye Shield (to be used WITH safety glasses)

B. Wide Grinding Wheel, 100 Grit

C. Tool Rest

D. ON/OFF Switch

E. Wheel Safety Guard

F. Regular Grinding Wheel, 36 Grit

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Safety Instructions for Machinery

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Additional Safety Instructions for Grinders

1. EYE PROTECTION. Grinding causes small

particles to become airborne at a high rate

of speed. ALWAYS wear safety glasses

when using this machine.

7. LUNG PROTECTION. Grinding produces

hazardous dust, which may cause long-

term respiratory problems if inhaled. Always

wear a NIOSH approved dust mask or res-

pirator when grinding.

2. MOUNTING TO BENCH/STAND. An unse-

cured grinder may become dangerously

out of control during operation. Make sure

grinder is FIRMLY secured to a bench/

stand before use.

8. SIDE GRINDING. Grinding on the side of

wheels can cause them to break and fly

apart—unless the wheel is rated for side

grinding.

3. WHEEL SPEED RATING. Wheels oper-

ated at a faster speed than rated for may

break or fly apart. Before mounting a new

wheel, be sure the wheel RPM rating is

equal to or higher than the speed of the

grinder.

9. TOP GRINDING. Grinding on the top

of wheels greatly increases the risk of

workpiece kickback. Always grind on the

downward part of the wheel.

10. HAND/WHEEL CONTACT. Grinding

wheels have the capability of removing

a lot of skin fast. Keep a firm grip on the

workpiece and position your hands a safe

distance away when grinding. Avoid wear-

ing gloves as they may get caught in the

grinding wheel and cause even more seri-

ous entanglement injuries.

4. WHEEL FLANGES. Only use the flanges

included with the grinder when mounting

wheels. Other flanges may not properly

secure the wheel and cause an accident.

5. RING TEST. Perform a “ring test” on grind-

ing wheels before installation to ensure

that they are safe to use. A wheel that does

not pass the ring test may break or fly apart

during operation.

11. TOOL REST POSITION. If the tool rest is

too far away from the wheel, the workpiece

may be pulled down, causing loss of con-

trol and pulling your hand into the grinding

wheel. Keep the tool rest within ¹⁄8" from the

wheel when operating.

6. STARTING GRINDER. If a wheel IS dam-

aged, it will usually fly apart shortly after

start-up. To protect yourself, always stand

to the side of the grinder when turning it

ON, allow it to gain full speed and wait for

at least 1 minute before standing in front of

it.

No list of safety guidelines can be complete.

Every shop environment is different. Always

consider safety first, as it applies to your

individual working conditions. Use this and

other machinery with caution and respect.

Failure to do so could result in serious per-

sonal injury, damage to equipment, or poor

work results.

Like all machinery there is potential danger

when operating this machine. Accidents are

frequently caused by lack of familiarity or

failure to pay attention. Use this machine

with respect and caution to lessen the pos-

sibility of operator injury. If normal safety

precautions are overlooked or ignored, seri-

ous personal injury may occur.

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SECTION 2: CIRCUIT REQUIREMENTS

110V Operation

Electrocution or fire could

result if this machine is

not grounded correctly or

if your electrical configu-

Serious personal injury could occur if you

ration does not comply

connect the machine to the power source

with local and state codes.

before you have completed the set up pro-

Ensure compliance by

cess. DO NOT connect the machine to the

checking with a qualified

power source until instructed to do so.

electrician!

Amperage Draw

The Model H8126 motor draws the following amps

under maximum load:

Motor Draw...........................................2.5 Amps

Circuit Recommendations

We recommend connecting your machine to a

dedicated and grounded circuit that is rated for

the amperage given below. Never replace a circuit

breaker on an existing circuit with one of higher

amperage without consulting a qualiﬁed electri-

cian to ensure compliance with wiring codes. If

you are unsure about the wiring codes in your

area or you plan to connect your machine to a

shared circuit, consult a qualified electrician.

This machine must have a ground prong in

the plug to help ensure that it is grounded.

DO NOT remove ground prong from plug

110V Circuit...........................................15 Amps

to fit into a two-pronged outlet! If the plug

will not fit the outlet, have the proper outlet

installed by a qualified electrician.

Plug/Receptacle Type

Included Plug Type........................... NEMA 5-15

Extension Cords

We do not recommend the use of extension cords,

but if you find it absolutely necessary:

•

Use at least a 16 gauge cord that does not

exceed 50 feet in length!

The extension cord must also contain a

ground wire and plug pin.

A qualified electrician MUST size cords over

50 feet long to prevent motor damage.

Figure 2. Typical type 5-15 plug and receptacle.

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SECTION 3: SET UP

Set Up Safety

Items Needed for

Setup

The following items are needed to complete the

setup process, but are not included with your

machine:

This machine presents

serious injury hazards

to untrained users. Read

through this entire manu-

al to become familiar with

the controls and opera-

tions before starting the

machine!

Description

Qty

•

Safety Glasses (for each person) .............. 1

Wrench ⁷⁄16"................................................. 1

Wrench ¹¹⁄32" ............................................... 1

Wrench ¹⁄2".................................................. 1

Phillips Head Screwdriver #2 ..................... 1

Wear safety glasses dur-

ing the entire set up pro-

cess!

Unpacking

The Model H8126 was carefully packed when it

left our warehouse. If you discover the machine

is damaged after you have signed for delivery,

please immediately call Customer Service at

(570) 546-9663 for advice.

Save the containers and all packing materials for

possible inspection by the carrier or its agent.

Otherwise, filing a freight claim can be difficult.

When you are completely satisfied with the condi-

tion of your shipment, inventory the contents.

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Inventory

After all the parts have been removed from the

box, you should have the following items:

Box Contents: (Figures 3 & 4)

Qty

A. Wide Wheel Grinder (Not Shown).............. 1

B. Left Spark Guard ....................................... 1

Right Spark Guard (Not Shown) ................ 1

C. Eye Shields ................................................ 2

D. Nut Plates................................................... 2

E. Bracket ....................................................... 2

F. Left Tool Rest ............................................ 1

Right Tool Rest (Not Shown) ..................... 1

Figure 4. Left tool rest.

If any nonproprietary parts are missing (e.g. a

nut or a washer), we will gladly replace them; or

for the sake of expediency, replacements can be

obtained at your local hardware store.

G. Hardware and Tools (Not Shown):

—Hex Bolts ¹⁄4"-20 x ³⁄8" (Eye Shield)......... 2

—Phillip Head Screws 8-32 x ³⁄8

Qty

(Eye Shield) ............................................ 4

—Flat Washers 4mm (Eye Shield)............. 4

—Hex Nuts #8-32 (Eye Shield).................. 4

—Flat Washers ¹⁄4" (Eye shield)................. 2

—Flat Washers ⁵⁄16" (Tool Rest)................. 4

—Hex Bolts ⁵⁄16"-18 x ³⁄8" (Tool Rest) ......... 4

NOTICE

Some hardware/fasteners on the inventory

list may arrive pre-installed. Check mount-

ing locations before assuming that any

items from the inventory list are missing.

Figure 3. Left eye shield assembly.

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Hardware Recognition Chart

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Site Considerations

Mounting

The Model H8126 must be mounted to a work-

bench to avoid accidental tipping. If you intend to

use the grinder for portable applications, mount it

to a heavy plywood base (at least 1" thick) that is

wide enough to prevent tipping or rocking during

use, then clamp the plywood base to the work-

bench or table.

Bench Load

Refer to the Machine Data Sheet for the weight

and footprint specifications of your machine.

Some workbenches may require additional rein-

forcement to support both the machine and the

workpiece.

To mount the grinder:

Placement Location

Consider existing and anticipated needs, size of

material to be processed through each machine,

and space for auxiliary stands, work tables or

other machinery when establishing a location for

your new machine. See Figure 5 for the minimum

working clearances.

1. Once you have confirmed that your grinder

is running properly, mount it to a workbench

through the holes in the base using the

dimensions in Figure 6. DO NOT overtighten

the mounting bolts or you will crack the

base.

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Figure 6. Bench grinder mounting bolt pattern.

Figure 5. Minimum working clearances.

Children and visitors may be

seriously injured if unsuper-

vised. Lock all entrances to

the shop when you are away.

DO NOT allow unsupervised

children or visitors in your

shop at any time!

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The strongest mounting option is a "Through

Mount" where holes are drilled all the way through

the workbench, and hex bolts, washers, and hex

nuts are used to secure the grinder to the work-

bench.

Tool Rest and Eye

Shield

The tool rest supports the workpiece during

grinding. Jigs or accessories may be attached to

the tool rest to grind the workpiece at complex

angles.

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The eye shield must be installed and positioned

between the grinding wheel and your face during

grinding. The eye shield is NOT a substitute for

safety glasses or a safety face shield. You must

wear ANSI approved face and eye protection.

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To assemble the tool rest and eye shield:

1. Using the hardware from the inventory list on

Page 10, assemble the left tool rest and eye

shield as shown in Figures 9 & 10.

Figure 7. Example of a through mount setup.

Another option for mounting is a "Direct Mount"

where the machine is simply secured to the work-

bench with a lag screw.

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Figure 8. Example of a direct mount setup.

2. Check the stability of the mounted grinder to

Figure 9. Left eye shield and tool rest assembly.

make sure it is stable.

3. Always make sure the grinder is bolted or

clamped to the workbench, table, or grinder

stand before use.

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Test Run

When your machine is mounted and assembly is

complete, test run your machine to make sure it

runs properly.

Phillips Head

Screws 8-32 x ³⁄8

If, during the test run, you cannot easily locate

the source of an unusual noise or vibration,

stop using the machine immediately, review the

Troubleshooting on Page 22, and correct the

problem.

Hex Bolt

4-20 x ³⁄8

If you cannot remedy a problem, contact our Tech

Support at (570) 546-9663 for assistance.

To test run the machine:

Hex Bolt

1. Make sure you have read the safety instruc-

tions at the beginning of the manual and that

the grinder is is setup properly.

⁵/16-18 x ³⁄8

2. Make sure the switch is in the OFF position.

3. Connect the grinder to the power source.

Figure 10. Left tool rest and eye shield

assembly.

2. Assemble the right tool rest and eye shield in

4. Make sure all tools and objects used during

the same manner.

set up are cleared away from the grinder.

5. Turn the grinder ON. Keep your hand poised

over the switch in case you need to quickly

turn the machine OFF.

6. Listen to and watch for abnormal noises.

Under normal conditions, the grinder will hum

or vibrate little.

—Investigate the cause of unusual noises

and eliminate them before operating the

machine further. Always disconnect the

machine from power before investigating

or correcting potential problems.

7. Turn the grinder OFF.

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SECTION 4: OPERATIONS

Operation Safety

Grinding Tips

The grinder is a safe tool when used properly. In

addition to the safety instructions in this manual,

the most important safety consideration is to use

common sense at all times. What may be okay in

one situation, can be dangerous in another.

Damage to your eyes, lungs, and ears could

result from using this machine without

proper protective gear. Always wear safety

glasses, a respirator, and hearing protection

when operating this machine.

Here are some tips to keep in mind while

grinding:

•

Make sure all guards are in place.

Remember that grinding often produces

sparks. DO NOT allow anyone to stand in

the path of the sparks.

•

DO NOT grind near flammable materials.

Loose hair and cloth-

ing could get caught in

machinery and cause seri-

ous personal injury. Keep

loose clothing and long

hair away from moving

machinery.

Maintain proper care of your wheels. Read

the Wheel Care instructions on Page 16 for

ideas on how to do this.

•

Wear the proper protective clothing. Particles

flying off of a grinding wheel will be travel-

ing very fast—prepare for this. Wear safety

glasses/face shield, a dust mask, earplugs,

a leather apron, and heavy leather boots.

Grasp the workpiece firmly and properly

support it on the tool rest during grinding.

Maintain even pressure and control of the

workpiece when grinding.

DO NOT use this grinder with a liquid cool-

ing system required for wet grinding wheel

operations. The electrical system is not

waterproof. Ignoring this warning can lead

to electrocution.

•

Concentrate on the task at hand. STOP

grinding if other people are distracting you or

your mind is on something else.

NOTICE

DO NOT grind on the side of the wheel. The

wheels provided with the Model H8126 are

not designed for side grinding.

If you have never used this type of machine

or equipment before, WE STRONGLY REC-

OMMEND that you read books, trade maga-

zines, or get formal training before begin-

ning any projects. Regardless of the con-

tent in this section, Grizzly Industrial will

not be held liable for accidents caused by

lack of training.

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Wheel Care

Wheel Selection

Your safety when grinding depends, in large part,

on the condition of the wheel. A wheel in poor

condition may break apart during rotation, injuring

the operator and damaging property.

The Model H8126 only accepts Type 1 wheels

with a ¹⁄2" bore.

Aluminum oxide and silicon carbide wheels are

marked in a somewhat uniform manner by all

major manufacturers. Understanding these mark-

ings will help you understand the capabilities of

various wheels. Always refer to the manufactur-

er’s grinding recommendations when selecting a

wheel for your project.

Here are some tips to help you avoid breaking

the wheel:

•

Always transport, store and handle wheels

with care. Wheels may be damaged if they

are dropped or if heavy objects are stacked

on them.

The basic format for wheel numbering is:

•

Select the right grinding wheel for the job.

DO NOT grind material inappropriate for the

wheel type.

Abrasive

Type

Bond

Type

Prefix

Grit Size Grade

Select the right wheel for the machine. If a

grinding wheel rotates faster than its RPM

rating, it may fly apart.

The Prefix is the manufacturer’s designation for a

particular wheel type (eg, Type 1 wheels).

Mount wheels properly. (See the Wheel

Replacement instructions on Page 17 for

guidance.) Never use a wheel with the wrong

arbor size for the grinder.

The most common Abrasive Types used are 'A'

for Aluminum Oxide, 'C' for Silicon Carbide, and

occasionally 'SG' for Seeded Gel.

The Grit Size is a number that refers to the size

of the abrasive grain in the wheel. The lower the

number, the coarser the wheel. Ten is a very

coarse wheel for roughing and 220 is usually the

upper range for fine finish work.

•

Do not abuse the wheel by jamming the work

into the grinding wheel with excessive force.

Learn how to use the grinder and the grind-

ing wheels properly. Ask a trusted person

with experience or consult with your local

library to learn more.

Grade is an indication of the hardness of the

wheel—'A' being the softest and 'Z' being the

hardest.

•

Do not store wheels in damp or wet loca-

tions.

Bond Type refers to the type of bonding material

used to hold the abrasive material. Most general

purpose wheels will have a 'V' indicating Vitrified

Clay is used. Vitrified Clay provides high strength

and good porosity. The other common bond type

is 'B' for resin where synthetic resins are used.

These are used to grind cemented carbide and

ceramic materials.

Grinding on the side of the wheel may cause

wheel damage.

Replace wheels when the diameter becomes

2" smaller than its original size.

Note: There may be other numbers inserted that

have meaning for a particular type of wheel. Refer

to the manufacturer’s technical data for a com-

plete explanation.

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4. An undamaged wheel will emit a clear metal-

lic ring or “ping” sound in each of these spots.

A damaged wheel will respond with a dull

thud that has no clear tone.

Wheel Inspection

Do not assume that a wheel is in sound condition

just because it is new—often damage can occur

in shipping, with age, or with exposure to mois-

ture. Inspect every wheel for damage.

5. If you determine from the ring test that the

wheel is damaged, DO NOT use it!

First, do a Visual Inspection. Look for any

cracks, chips, nicks or dents in the surface of the

wheel. If you see any of these, DO NOT use the

wheel.

Wheel Dressing

Depending on the type of grinding you do, the

grinding wheel may require periodic dressing.

Second, do a Ring Test, by following Steps 1-5

below. This test will give you an indication of any

internal damage that may not be obvious during

a visual inspection.

Several different kinds of wheel dressing devices

are available (see Page 19). Dressing restores

the abrasive quality of the wheel surface and

squares up the wheel edge.

Always be sure to use a wheel that is rated for

3450 RPM or greater.

Refer to the instructions that accompany your

dressing accessory for complete details on how

to properly dress a wheel.

To perform a Ring Test:

1. Make sure the wheel that you test is clean and

dry; otherwise, you may get false results.

Wheel Replacement

2. If size permits, balance the wheel with your

finger in the hole. If this is not possible, hang

the wheel in the air with a piece of cord or

string looped through the hole in the center.

The wheel guard assembly must be removed in

order to mount or dismount a grinding wheel.

3. At the spots shown in Figure 11, gently tap

the wheel with a light non-metallic device

such as the handle of a screwdriver or a

wooden mallet.

To replace a grinding wheel:

1. DISCONNECT THE GRINDER FROM

POWER!

2. Remove the three Phillips head screws and

nuts that go through the outer guard, and

remove the outer guard.

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3. Block the wheel from turning, then remove

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the arbor nut that secures the wheel.

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Note: The arbor shaft and nut on the left

side of the grinder (as you face front) has

left hand threads; to loosen this nut, turn it

clockwise.

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Figure 11. Tapping locations when performing a

ring test.

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4. Remove the outer wheel flange and the

paper disc. Pull the wheel free from the arbor,

but leave the paper disc and a wheel flange

on the other side of the wheel.

��

NEVER assemble a grinding wheel on the

arbor without paper or fiber discs between

the wheel and the flange. Omitting the discs

can put uneven stress on the wheel, causing

it to crack and possibly fly apart. ALWAYS

“ring test” a wheel before assembly to make

certain it has no cracks or flaws.

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Figure 12. Typical assembly order for wheel

installation.

5. Mount the new wheel as shown in Figure

12. Always make certain there is a paper or

fiber disc between the wheel flanges and the

wheel itself. Tighten the arbor nut snugly but

DO NOT over-tighten. Over-tightening can

crack the wheel.

6. Run a new wheel for at least one minute

while standing clear of the line of rotation. If a

wheel does have defects it will generally fail

as soon as it gets up to full speed.

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ACCESSORIES

SECTION 5: ACCESSORIES

G7120—Heavy Duty Grinder Stand

This is one of the most stable bench grinder

Type 1 Aluminum Oxide Replacement Wheels

G1979—6" Wheel, 36 Grit, ¹⁄2 Bore

G1980—6" Wheel, 60 Grit, ¹⁄2" Bore

stands on the market. Once you have one, you’ll

wonder how you ever got along without it. 32¹⁄2

”

high. Universal mounting plate may require modi-

fications for some bench grinders. Buffer/Sander

not included. 49 lbs.

G7984—Face Shield

H1298—Dust Sealed Safety Glasses

H1300—UV Blocking, Clear Safety Glasses

H2347—Uvex^®Spitfire Safety Glasses

H0736—Shop Fox^®Safety Glasses

Safety Glasses are essential to every shop. If

you already have a pair, buy extras for visitors

or employees. You can't be too careful when it

comes to shop safety!

H1300

H1298

G7984

Figure 13. Model G7120.

H5891—¹⁄2 Carat Diamond Dresser

H5892—³⁄4 Carat Diamond Dresser

Industrial diamond for dressing grinding wheels.

8¹⁄4" long round body with knurled grip for maxi-

mum control. Includes protective rubber end cap.

H0736

H2347

Figure 15. Our most popular safety glasses.

H5892

H5891

Figure 14. Diamond Dressers.

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SECTION 6: MAINTENANCE

Grinding Wheels

Always disconnect power

to the machine before

The grinding wheel should be inspected before

performing maintenance.

every use. Use the ring test method noted in

Failure to do this may

Wheel Inspection on Page 17 to verify the

result in serious person-

structural integrity. Take care in storing grinding

al injury.

wheels to keep them free from potential damage

by being dropped or having other items drop on

them.

Schedule

Replace the wheel when the wheel diameter

is reduced to 2" smaller than its original size.

For optimum performance from your machine,

Operating at anything less than this diameter

follow this maintenance schedule and refer to

does not allow the proper surface speed for grind-

any specific instructions given in this section.

ing or spacing of the tool rest and the eye shield,

Routinely check the condition of the following

and the grinding wheel may fly apart.

items and repair or replace as necessary:

•

Cracked or loose grinding wheel.

Loose mounting bolts.

Worn switch.

Worn or damaged cords and plugs.

Any other condition that could hamper the

safe operation of this machine.

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Maintenance Log

Maintenance Performed

Date

Approximate Hours Of Use

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SECTION 7: SERVICE

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-

ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical

Support at (570) 546-9663.

Troubleshooting

Motor & Electrical

Symptom

Possible Cause

Possible Solution

Motor will not start; 1. Switch is at fault.

1. Replace switch.

fuses or circuit

breakers blow.

2. Open circuit in motor or loose connections. 2. Inspect/repair all lead connections on motor for

3. Incorrect fuses or circuit breakers in power

supply.

loose or open connections.

3. Install correct fuses or circuit breakers.

4. Replace start capacitor.

4. Start capacitor is at fault.

5. Short circuit in motor or loose connections. 5. Inspect all connections on motor for loose or shorted

terminals or worn insulation.

Motor overheats, 1. Motor overloaded.

1. Slow down feed rate of workpiece.

2. Short circuit in motor or loose connections. 2. Inspect connections on motor for loose or shorted

terminals or worn insulation.

stalls

in blown fuses or

tripped circuit).

(resulting

Grinder Operations

Symptom

Possible Cause

Possible Solution

Wavy

tion on surface of

workpiece.

condi- 1. Machine vibrating.

1. Make sure machine is securely mounted on a solid

surface.

2. Wheel face uneven.

2. Dress the grinding wheel.

3. Workpiece is not held in place firmly.

4. Wheel is too hard.

3. Use a holding device to firmly retain the workpiece.

4. Use softer wheel, or reduce the feed rate.

Lines on surface of 1. Impurity on wheel surface.

1. Dress the grinding wheel.

workpiece.

2. Workpiece not being held tightly.

2. Use a holding device to firmly retain the workpiece.

Burning

or cracks in the

workpiece.

spots 1. Improper type of grinding wheel.

1. Try a wheel that is softer style or a coarser grit.

2. Slow down the rate of movement of the workpiece

into wheel.

2. Improper feed rate.

Wheel dulls quickly, 1. Depth of cut too great.

grit falls off.

1. Slow down the rate of movement of the workpiece

into wheel.

2. Wheel is too soft.

2. Wheel too soft for the material being ground, select

harder bond.

3. Wheel diameter too small.

4. Bad wheel dress.

3. Replace the wheel.

4. Dress the wheel.

Wheel clogs and 1. Wheel is too hard.

workpiece shows

1. Wheel too hard for the material being ground, select

softer bond.

burn marks.

2. Feed rate too slow.

2. Increase the rate of movement of the workpiece into

wheel.

3. Bad wheel dress.

3. Dress the wheel.

4. Wrong material is being ground.

4. Grind ferrious metals only.

-22-

H8126 Wide Wheel Ginder

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Wiring Diagram

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Figure 16. H8126 Wiring.

-23-

H8126 Wide Wheel Grinder

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Parts Breakdown

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-24-

H8126 Wide Wheel Ginder

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Parts List

REF PART #

DESCRIPTION

REF PART #

DESCRIPTION

PS06

PHLP HD SCR 10-24 X 3/8

WIRE NUT

*59

PH8126030

PH8126031

PH8126032

PH8126033

PH8126034

PH8126035

PH8126036

PH8126037

PH8126038

PH8126039

PH8126040

PH8126041

PN07

GRAY GRINDING WHEEL #36

WHITE GRINDING WHEEL #100

WHEEL FLANGE

PH8126002

PW02M

FLAT WASHER 5MM

ARROW LABEL

PH8126004

PS24

RUBBER FOOT

PHLP HD SCR 8-32 X 3/8

HEX NUT 8-32

BOTTOM PLATE

PN14

STRAIN RELIEF

PW05M

FLAT WASHER 4MM

FLAT WASHER 1/4

110V POWER CORD

WIRE NUT

PW06

PB51

HEX BOLT 1/4-20 X 3/8

LEFT SPARK GUARD

RIGHT SPARK GUARD

BRACKET

SWITCH PLATE

PH8126010

PH8126011

PH8126012

PH8126013

PH8126014

PH8126015

PH8126016

PB15

ROCKER SWITCH SW-155-BB2

CAPACITOR RETAINER

CAPACITOR 6MFD 250VAC

HEX NUT 10-24

NUT PLATE

EYE SHIELD

PH8126043

PW06

PHLP HD SCR 10-24 X 4-1/4

FLAT WASHER 1/4

LOCK WASHER 1/4

HEX NUT 1/4-20

LEFT TOOL REST

RIGHT TOOL REST

PLW02

HEX BOLT 5/16-18 X 3/8

FLAT WASHER 5/16

PN05

PW07

PSS06

SET SCREW 1/4-20 X 3/4

STRAIN RELIEF

PLW01M

PH8126020

PH8126021

PH8126022

PS18

LOCK WASHER 5MM

COPPER WASHER 5MM

SPECIAL TOOTH SCR 1/4-20 X 3/8

SPECIAL TOOTH SCR 10-24 X 1/4

PHLP HD SCR 10-24 X 1/4

RIGHT 1/2" ARBOR NUT

LEFT 1/2" ARBOR NUT

RIGHT OUTER WHEEL GUARD

LEFT OUTER WHEEL GUARD

RIGHT INNER WHEEL GUARD

LEFT INNER WHEEL GUARD

PH8126048

PH8126049

PH8126050

PH8126051

P6202

BASE

END COVER

MOTOR CASE

BALL BEARING 6202ZZ

FAN

PH8126024

PH8126025

PH8126026

PH8126027

PH8126028

PH8126029

PH8126055

PH8126056

PH8126057

PH8126058

PPAINT-1

STATOR

DATA/WARNING LABEL

ROTOR AND SHAFT

PAINT-GRIZZLY GREEN

*Not shown on parts diagram.

Safety labels warn about machine hazards and ways to prevent injury. The owner of this machine

MUST maintain the original location and readability of the labels on the machine. If any label is

removed or becomes unreadable, REPLACE that label before using the machine again. Contact

Grizzly at (800) 523-4777 or www.grizzly.com to order new labels.

-25-

H8126 Wide Wheel Grinder

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WARRANTY AND RETURNS

Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from

the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,

negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty

and any and all warranties that may be implied by law, including any merchantability or fitness, for any par-

ticular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent

that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.

In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and

any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.

We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special,

or consequential damages arising from the use of our products.

To take advantage of this warranty, contact us by mail or phone and give us all the details. We will then

issue you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of the

carton. We will not accept any item back without this number. Proof of purchase must accompany the

merchandise.

The manufacturers reserve the right to change specifications at any time because they constantly strive to

achieve better quality equipment. We make every effort to ensure that our products meet high quality and

durability standards and we hope you never need to use this warranty.

Please feel free to write or call us if you have any questions about the machine or the manual.

Thank you again for your business and continued support. We hope to serve you again soon.

-26-

H8126 Wide Wheel Ginder

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