Craftsman 351211930 Owner’s Manual

Operator's Manual

CRRFTSMRN

aft

GRINDER WITH STAND

Model No.

351.211930

CAUTION: Read and follow

all Safety Rules and Operating

Instructions before First Use

of this Product.

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

www ,sears.corn/craftsman

2527300 Draft (03/09/07)

Warranty .................................................... 2

Safety Rules ........................................ 2

Unpacking ............................................... 4

Assembly ................................................... 4

Installation .................................................. 4-5

Operation ................................................ 5-6

Maintenance .......................................... 6

Troubleshooting ............................................. 7

Parts lllustration and List ............................ 8-I I

Espaffoi .............................................................. 12-17

ONE-YEAR FULL WARRANTY ON

CRAFTSMAN PROFESSIONAL TOOL

If thisCraftsman toolfails due to a defect in material or

workmanshipwithinone year from the date of purchase,

call 1-800-4-MY-HOME® TO ARRANGE FOR FREE REPAIR (or replacement if repairproves impossible).,

This warranty does not include expendable parts, such

as lamps, batteries or grinding and wire wheels

If this toot is ever used for commercial or rental purposes,

this warranty will apply for only 90 days from the date of purchase..

This warranty gives you specific legal rights and you may

also have other rights which vary from state to state.

Sears, Roebuck and Co,, Hoffman Estates, IL 60179

WARNING: Some dust created by power sanding, sawing,

grinding, drilling and other construction activities contains chemicals known to cause cancer, birth defects or other

reproductive harm Some examples of these chemicals are:

- Lead from lead-based paints ,= Crystalline silica from bricks and cement and other

masonry products..

- Arsenic and chromium from chemically-treated lumber. Your risk from these exposures vary, depending on how often

you do this type of work To reduce your exposure to these chemicals: work in a well ventilated area and work with

approved safety equipment Always wear OSHNNIOSH approved, properly fitting face mask or respirator when using

such tools WARNING: For your own safety, read all of the instructions

and precautions before operating tool.. CAUTION: Always follow proper operating procedures as

defined in this manual even if you are familiar with use of this or similar tools Remember that being careless for even a

fraction of a second can result in severe personal injury

BE PREPARED FOR JOB

• Wear proper apparel,, Do not wear loose clothing, gloves,

neckties, rings, bracelets or other jewelry which may get caught in moving parts of machine

• Wear protective hair covering to contain long hair.

• Wear safety shoes with non-slip soles. ,, Wear safety glasses complying with United States ANSi

Z87..1. Everyday glasses have only impact resistant lenses They are NOT safety glasses.

= Wear Face mask or dust mask if operation is dusty

• Be alert and think clearly Never operate power tools when tired, intoxicated or when taking medications that cause drowsiness..

PREPARE WORK AREA FOR JOB ,, Keep work area clean Cluttered work areas invite

accidents_

• Do not use power tools in dangerous environments.. Do not

use power tools in damp or wet locations Do not expose power tools to rain..

• Work area should be properly lighted_

,, Proper electrical receptacle should be available for toot..

Three prong plug should be plugged directly into properly grounded, three-prong receptacle.

• Extension cords should have a grounding prong and the three wires of the extension cord should be of the correct gauge

• Keep visitors at a safe distance from work area..

- Keep children out of workplace. Make workshop childproof

Use padlocks, master switches or remove switch keys to prevent any unintentional use of power tools.

TOOL SHOULD BE MAINTAINED = Always unplug tool prior to inspecfion_

• Consult manual for specific maintaining and adjusting

procedures.r

- Keep tool lubricated and clean for safest operation..

,, Remove adjusting tools Form habit of checking to see that

adjusting tools are removed before switching machine on.

• Keep all parts in working order Check to determine that the guard or other parts will operate properly and perform their

intended function.

• Check for damaged parts Check for alignment of moving

parts, binding, breakage, mounting and any other condition

that may affect a tool's operation

. A guard or other part that is damaged should be properly

repaired or replaced° Do not perform makeshift repairs. (Use parts list provided to order replacement parts.)

KNOW HOW TO USE TOOL . Use right tool for job. Do not force tool or attachment to do

a job for which it was not designed.

. Disconnect tool when changing grinding wheels..

• Avoid accidental start-up. Make sure that the tool is in the "off" position before plugging in.

• Do not force tool. It wilt work most efficiently at the rate for which it was designed

• Keep hands away from moving parts and grinding surfaces.

• Never leave tool running unattended Turn the power off and do not leave tool until it comes to a complete stop.

• Do not overreach.. Keep proper footing and balance.

• Never stand on tool Serious injury could occur if tool is tipped oVerr.

• Know your tool.. Learn the tool's operation, application and specific limitations

o Use recommended accessories (refer to page 9). Use of

improper accessories may cause risk of injury to persons..

,, Do not overtighten wheel nut. Replace cracked wheel

immediately. Use only flanges supplied with the grinder

o Adjust distance between wheel and tool rest to maintain

'/,_" or less gap..

° Handle the workpiece correctly Whenever possible, use

tool rest to support workpiece during grinding operation. Turn tool off if it jams=

,, Always use guards and eyeshields_ ,, Clean grinding dust from beneath tool frequently.

CAUTION: Think safety] Safety is a combination of operator

common sense and alertness at all times when tool is being used..

WARNING: Do not attempt to operate tool until it is com- pletely assembled according to the instructions°

Refer to Figures 1, 2 and 3, pages 3 and 4. Check for shipping damage., tf damage has occurred, a claim

must be filled with carrier. Check for completeness. Immediately report missing parts to dealer

The grinder comes assembled as one uniL Two extra wheels are included:

• 8" Grinding wheel 36 grit (course)

• 8" Grinding wheel 60 grit (medium) Parts for stand and additional parts which need to be fas-

tened to grinder, should be located and accounted for before assembling

To be certain the grinding wheels have not been damaged in shipping, strike the edges slightly with a metal object.. A ring-

ing sound indfcates a good wheel, but a dull noise may signal a fracture

WARNING: If you suspect a wheel of being fractured,

replace it immediately Fractured wheels may shatter, causing serious injury

STAND

Parts to be assembled should be located and accounted for (See List and Figure 1)

A Foot pad, 4 each B Leg section, 8 each

C Short brace, 2 each D _f_-18 x _" Carriage bolt, 24 each E _,_" Flat washer, 24 each F _/.,"=18 Hex nut, 24 each G Long brace, 2 each H Top, 1 each

1 8-1..25 x 45ram Hex bolt, 4 each (not shown) J 8mm Flat washer, 8 each (not shown)

K 8ram Lock washer, 4 each (not shown) L 8-1..25mm Hex nut, 4 each (not shown)

Figure1- Stand

EYESHIELD Parts to be assembled should be located and accounted for (See List and Figure 2).,

A 8ram Serrated washer, 2 each

B #I0-24 x ¾" Pan head screw, 4 each C Upper eyeshie]d bracket, 2 each, (left and right)

D Lower eyeshield bracket, 2 each E Eyeshield, 2 each

F 6mm Fiat washer, 2 each G Knob, 2 each H ¼" Flat washer, 2 each

I ¼" Lock washer, 2 each

J '/,-20 x ¾" Hex bolt, 2 each

K Spark guard, 2 each (left and right)

C D

Figure 2 - Eyeshleld Assembly

TOOLREST

Parts to be assembled should be located and accounted for (See List and Figure 3).

A _;_18 x 1_" Carriage bolt, 2 each

B Tool rest, 2 each

C _" Fiat washer, 6 each

D _" -18 Hex nut, 2 each E Bracket, 2 each F _-18 x ¾" Hex bolt, 4 each

Figure 3 -Tool Rest

Refer to Figures 1, 2 and 3, pages 3 and 4. IMPORTANT: Do not attempt assembly if parts are missing.

Use this manual to order replacement parts.

STAND ASSEMBLY

Refer to Figure 1, page 3.

NOTE: Finger tighten bolts and nuts until assembly is complete. Then tighten all fasteners securely.

,, Place top (H) on the flat surface up side down.. ,, Attach 4 leg sections (B) to the top using carriage bolts (D),

washers (E) and nuts (F).

,, Attach 2 short braces (C) and 2 long braces (G) to the

ends of already assembled leg brackets using carriage bolts (D), washers (E) and nuts (F)

° Attached remaining 4 leg sections (B) to the braces using

carriage bolts (D), washers (E) and nuts (F)..

° Attach foot pads (A) to the end of each leg.. ,, Turn the stand side up and position on the fioor.. = Adjust stand position so all legs are contacting the floor

and are positioned at similar angles to the floor

,, Fully tighten all bolts. NOTE: Stand should not rock after all bolts are tightened°

MOUNT GRINDER Locate bag with following hardware:

8-1.25 x 45mm Hex bolt, 4 each 8mm Flat washer, 8 each 8mm Lock washer, 4 each

8-1.25mm Hex nut, 4 each , Place grinder on the top of the stand ,, Align mounting holes in grinder's base with siets on stand's

top.

,, Use 8-1..25 x 45mm hex bolts with 8mm flat washers, Bmm

lock washers and 8-1 ..25ram hex nuts to secure grinder to stand top

EYESHIELD ASSEMBLY Refer to Figure 2, page 3

,, Fasten spark guard (K) to wheel guard using hex bolt (J),

lock washer (i), flat washer (H) and serrated washer (A)

NOTE: Serrated washer must be placed between spark guard

and wheel guard surfaces for added stability ,, Remove pan head screws (B) from eyeshie]d assembly. ,, Mount left upper eyesh[eld bracket (C) to eyeshield (E)

using pan head screws (B) and lower eyeshield bracket

(U),,

NOTE: Left upper eyeshield bracket is stamped "C' for identification.

° Slide knob (G) through 6mm fiat washer (F) and through

hole at top of spark guard (K) and fasten into upper

eyeshield bracket (C)

- Locate eyeshield in desired position for protecting operator

and tighten knob

- Mount right eyeshield assembly in a similar manner.

TOOL REST ASSEMBLY Refer to Figure 3, page 3

° Attach bracket (E) to wheel guard using hex bolts (F) and

fiat washers (C)o

° Tighten bolts finger tight ° SIide _,1,-18x 1%" carriage bolt (A) into square hole in tool

rest bracket (E)

• Slide tool rest (B) onto carriage bolt from the inside of tool

rest as shown in Figure 3. , Slide _" flat washer (C) and _I,"-18 hex nut (F) onto

carriage bolt..

• Tighten nut finger tight

• Position too_ rest so that distance between tool rest and

grinding wheel is tess than _,".

• Secure all nuts and bolts

- Mount the opposite side tool rest in a similar manner.

Refer to Figures 4 and 5.

POWER SOURCE

WARNING: Do not connect grinder to the power source until

all assembly steps have been completed,

The motor is designed for operation on the voltage and fre_

quency specified,, Normal loads will be handled safely on volt- ages not more than 10% above or below specified voltage,

Running the unit on voltages which are not within range may

cause overheating and motor burn-out. Heavy loads require that voltage at motor terminals be no tess than the voltage specified on nameplate.

• Powersupplytothemotoriscontrolledbyasinglepole lockingrockerswitchLRemovethekeytopreventunautho-

rizeduse,.

GROUNDING INSTRUCTIONS WARNING: Improper connection of equipment grounding

conductor can result in the risk of electrical shock.. Equipment should be grounded while in use to protect operator from

electrical shock

• Check with a qualified electrician if grounding instructions

are not understood or if in doubt as to whether the tool is properly grounded

• This tool is equipped with an approved 3=conductor cord

rated at 300V and a 3-prong grounding type plug (Figure 2)

for your protection against shock hazards

• Grounding plug should be plugged directly into a properly

installed and grounded 3-prong grounding-type receptacle, as shown (Figure 4),

Prope dyG rounded Outiet =_...._Fr=..,_ __ _-.-n

Grounding Prong _,

3-Prong P}ug _.._.__

Figure 4 - 3-Prong Receptacle

• Do not remove or alter grounding prong in any manner, tn

the event of a maffunctton or breakdown, grounding pro- vides a path of least resistance for electrical shock

WARNING: Do not permit fingers to touch the terminals of

plug when installing or removing from outlet. ,, Plug must be plugged into matching outlet that is propedy

installed and grounded in accordance with all local codes and ordinances, Do not modify plug provided., ff it will not fit in out-

let, have proper outlet installed by a qualified electrician.

,, Inspect tool cords periodically, and if damaged, have

repaired by an authorized service facility..

• Green (or green and yellow) conductor in cord is the

grounding wire. If repair or replacement of the electric cord or pSug is necessary, do not connect the green (or green

and yellow) wire to a live terminal,

,, Where a 2-prong wa_l receptacle is encountered, it must be

replaced with a properly grounded 3-prong receptacle installed in accordance with National Electric Code and

local codes and ordinances..

WARNING: This work should be performed by a qualified

electrician. A temporary 3-prong to 2-prong grounding adapter (see

Figure 5) is availabfe for connecting plugs to a two pole outlet ff it is properly grounded.

Grounding Lug \

Adapter -_"_.._1

3 Prong P_. 1_

Figure 5 - 2-Prong Receptacle with Adapter

Make Sure This Is

Connected To A Known

Ground 2-Prong

Receptacle

• Do not use a 3-prong to 2-prong grounding adapter unless permitted by local and national codes and ordinances.

(A 3-prong to 2-prong grounding adapter is not permitted in Canada) Where permitted, the rigid green tab or terminal on

the side of the adapter must be securely connected to a permanent electricat ground such as a properly grounded

water pipe, a properly grounded outtet box or a propedy grounded wire system..

, Many cover plate screws, water pipes and outlet boxes are

not properly grounded, To ensure proper ground, grounding means must be tested by a qualified electrician

EXTENSION CORDS

• The use of any extension cord wit!cause some drop in

voltage and lossof powe_

= Wires of the extension cord must be of sufficient size to

carry the currentand maintain adequate voltage,

• Use the table to determine the minimum wire size (A WG,.)

extension cord.

• Use only 3-wire extension cordshaving 3-prong grounding

type plugs and 3-pole receptacles which accept the tool

plug

• if the extensioncord is worn, cut, or damaged in any way, replace it immediately,

Extension Cord Length

Wire Size ...................................... AW, G

Up to 25 ft .............................................................. 16

NOTE: Using extension cords ever 25 it, long is not recommended.,

DESCRIPTION

Craftsman 8" Variable Speed Bench Grinder is designed for hand heed grinding, sharpening and cleaning operetiom Equipped with a totaliy enclosed ball beadng motor. Armature

assembly is dynamically balanced for smooth operation. Motor housing is compact so long pieces of work can press

against both wheels without touching the motor frame.. Grinder operates at 3450 RPM and at variable speed in the

range of 2000 to 3300 RPMo includes adjustable tool rests, spark guards and eyeshie[ds

Gdnder comes complete with one wire wheel and one grinding wheel installed plus two additional grinding wheels

and the stand. WARNING: Always wear safety glasses compfying with

United States ANSI Z87t before commencing power tool operation. Safety glasses are available through your Sears

catalog

SPECIFICATIONS

The grinder is assembled with motor and wiring installed as an integral part of the tool,.

Horsepower (Continuous Duty) .............................

Voltage ............................................................. 120

Amperes ..................................................... 5 O

Hertz ............................................. 60

Phase ................................................... Single

RPM .............................................. 2000-3300; 3450

Rotation (viewed from left side) ................. Clockwise

Wheel diameter ................................................... 8"

Wheel bore ............................................ s#,

Wheel face ................................................. 1"

Stand height .............................................. 31"

Gross weight ....................................... 61 lbs

ALUMINUM OXIDE VITRIFIED WHEELS

Grit .................................. #36 Coarse and _t60 Medium

ONIOFF SWITCH ,J To turn the grinder ON, pull the switch to the up position..

• To turn the grinder OFF, push the switch to the down posi-

tion

NOTE: The grinder can be locked from unauthorized use by

locking the switch_.

To lock the switch:

• Turn the switch to OFF position and disconnect grin der from power source

• Pu!] the key out, The switch cannot be turned on with the key removed,,

NOTE: Should the key be removed from the switch at the ON position, the switch can be turned off but cannot be turned on

again,,

• To replace key, slide key into the slot on switch until it snaps

VARIABLE SPEED SWITCH ° To operate grinder at full speed (3450 RPM), turn knob

(Key No., 59) completely counterclockwise.

° To operate grinder at a slower speed turn knob clockwise,

The speed is infinitely variable from 2000 to 3300 RPM

GRINDING

• Sharpening and grinding operation can be done on the right side of the grinder using grinding wheel

• Cleaning of metal surfaces can be done on the left side of the grinder using wire wheel

• Keep a steady, moderate pressure on the work piece and keep it moving at an even pace for smooth gdnding.r

• Pressing too hard overheats the motor and prematurely wears down the grinding wheels.

• Avoid excessive pressure when using wire wheel,, Excessive pressure causes over-bending of the wires and

heat build-up resulting in wire breakage, dulling and reduced wheel life

- Note the original beveled angle on the item to be sharp- ened and try to maintain that angle, Sharpening a cutting

edge requires removing burrs from edge,

- Deburring edge is done best by using the grinder to pull burr from edge across the bevel angle,

- The grinding wheel should rotate into object being sharp- ened.

• Use slower wheel speed when sharpening tempered tools Overheating wilt destroy the temper.

,, Dip work into a coolant regularly to prevent overheating

Overheating can weaken metals.

,, Do not grind on the sides of grinding wheels unless they

are specifically designed for that purpose.,

• When starting the tool, let it run for one minute, Never start the toot with a person in line with the wheel This includes

the operator.

WARNING: In normal wire wheel operations, the material

being removed, such as burrs, scale, dirt, weld slag or other residue, wilt fly off the wheel with considerable force along

with wire filaments which break off due to fatigue,

,, As wheels wear, toot rests should be positioned closer to

the face of the wheels.,

- The gap between the wheel and the tool rest should not be greater than 't,," When the wheels are worn to the extent

that the V,_,"maximum gap cannot be maintained, the wheels should be replaced.,

,, Replacement wheels must have a minimum rated speed of

3500 RPM

• Maximum wheel diameter is 8".

• To loosen the nuts holding the wheels, disconnect power and push a wood wedge between the toot rest and the

wheel to keep the shaft from turning The threads on the right side of the grinder (facing unit) are right hand; the

threads on the left side are left hand Tighten nuts securely before operating the grinder

. For grinding efficiency, wheels should be dressed periodi-

cally, especially if they become clogged from gdnding soft metals,

• Use grinding wheel dresser - 25282 to restore wheels to original shape, (See recommended accessories, page I1.)

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