Craftsman 351233731 Planer Operating instructions

SAVE THiS MANUAL

FOR

FUTURE REFERENCE

MODEL NO.

351.23373!

CAUTION:

READ ALL

INSTRUCTIONS

CAREFU LLY!

12 1/2" PLANER

o safety instructions o operating instructions o replacement parts

_art No. 4290.01

Sold by SEARS: ROEBUCK AND CO.: Chicago: RL60684 U.S.A. ©

October 1991

FULL ONE YEAR WARRANTY ON SEARS/CRAFTSMAN 12 1/2" Thickness Planer

if within one full yeer from the date of purchase, this Sears Craftsmen 12 1/2" Thickness

Planer fails due to a defect in material or workmanship, Sears will repair it, free of charge.

WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE NEAREST SEARS STORE

OR SERVICE CENTER THROUGHOUT THE UNITED STATES.

This warranty gives you specific lega_ rights, and you may have other rights which vary from state to state.

SEARS, ROEBUCK AND CO., DEPT.698/731A SEARS TOWER, CHICAGO, IL 60684

GENERAL SAFETY INSTRUCTIONS FOR POWER TOOLS

BEFORE ANY WORK IS DONE, READ THE CAU=

TIONS LISTED BELOW CAREFULLY.

WORKING

SAFELY PREVENTS ACCIDENTS.

OPERATOR SHOULD BE PREPARED FOR THE JOB a.

Wear proper apparel Do not wear loose clothing, gloves, neckties, rings, bracelets or other jewelry which may get caught in moving parts of the machine.

b.

Wear protective hair coveringto contain long hair.

c.

Wear safety shoeswith non-slip soles.

d.

Wear safety glasses.

Everyday glasses have only impact resistant lenses. They are not safety glasses.

e.

Wear face mask or dust mask if cutting operation is dusty.

f.

Be alert and think dearly.

Never operate power tools when tired, intoxicated or when taking medications that cause drowsiness.

WORK AREA SHOULD BE READY FOR THE JOB: a.

Keep work area dean.

Cluttered work areas and workbenches invite accidents.

b.

Do not use power tools in dangerous environments. Do not use power tools in damp or wet loca- tions. Do not expose power tools to rain.

c.

Work area should be properly Hghted.

d.

The proper electrical outlet should be available for the tool, A three-prong plug should be plugged directly into a properly grounded three-prong receptacle.

e.

Extension cords shouBd have a ground prong and the three wires of the extension cord should be the correct gauge.

f.

Keep visitors a safe distance from work area.

f.

Keep aH guards in place and in working order.

g.

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

h.

Check for damaged parts. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other condition that may affect a tool's operation.

i.

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

Do not perform makeshift repairs (use the parts list provided with owner's manual to order replacement parts).

OPERATOR SHOULD KNOW HOW TO USE TOOL: a.

Use the right tooa for the job. Do not force a tool or attachment to do a job for which it was not designed.

b.

Disconnect tool when changing accessories, such as blades, bits, cutters and the like.

c.

Avoid accidental start-up.

Make sure that the machine is in the "off" position before plugging in.

d.

Do not force a tool. _t will work most efficiently at the rate for which it was designed.

e.

Use recommended accessories.

Consult the owner's manual for recommended accessories.

The use of improper accessories may cause risk of injury to persons, f.

Handle the workpiece correctly.

Use push sticks or push blocks when required; protect hands from possible injury.

g.

Direction of feed. Feed work into a blade or cutter against direction of rotation of the blade or cutter.

g.

Keep chiHdren out of workplace.

Make workshop children-proof.

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

TOOL SHOULD BE MAINTAKNED: h.

Turn the machine off if it jams. A blade jams when digs too deeply into the work (the motor force keeps it stuck in the work).

i.

Never leave a tooJ running unattended. Turn the power off and do not leave too! until it comes to a complete stop: j.

Do not overreach.

Keep proper footing and balance.

a.

Always unplug power tool prior to inspection.

b.

Consult the owner's manualfor specific maintaining and adjusting procedures.

c.

Keep machine lubricated.

k.

Never stand on tool. Serious injury could occur if the tool istipped or if the cutting too! is unintentionally contacted.

d.

Use sharp bKadesand keepthetool clean for safest operation.

e.

Remove adjusting keys and wrenches.

Form habit of checking to see that keys and adjusting wrenches are removed from tool before turning on.

I.

Keep hands away from moving parts and cutting surfaces.

m.

Know your power tool. Learn its operation, application and specific limitations.

Warranty ................................

General Safety instructions for Power Tools .......................

Safety instructions for Planer ................

Motor Specifications and Electrical Requirements ............

Electrical Connections .....................

Unpacking and Checking Contents ...........

Assembly ................................

CONTENTS

2

5

5

4

5

2

3

Operation ................................

Maintenance .............................

Trouble Shooting ..........................

Parts Illustration for Base ..................

Parts List for Base ........................

Parts IHustra_ion for Roller Case .............

Parts List for Roller Case ..................

Parts Illustration for Motor .................

Parts List for Motor .......................

12

13

14

15

9

10

11

6

8

WARNING LABELS

The 12 1/2" thickness planer has been marked with warning labels that need to be observed for safe operation. The operator should be aware of the location and contents of these labels.

Thesawarning labels are placed in specific locations so they are visible to the operator when starting and operating the tool.

LABEL ON FRONT OF UNIT

WARNING;

FOR SAFE OPERATION SEE OWNER'S MANUAL

Keep hands away during operation.

Allow the automatic feed to function properly.

Do not push or pull workpiece through machine.

Cutterhead must be at a complete stop before freeing the workplace or making any adjustments.

Do not cut deeper than 1/16".

Wear eye protection.

LABEL ON SIDE OF UNIT

WARNING:

Always use planer with cutterhead guard.

Cutterhead must be at a complete stop before freeing the workpiece or making any adjustments.

Use only identical replacement parts,

LABEL ON CUTTERHEAD GUARD

WARNING

® TO REDUCE RISK OF INJURY,

ATTACH THE SAFETY COVER BEFORE

OPERATING.

SAFETY INSTRUCTIONS FOR 1 2 1/2" THICKNESS PLANER

WARNING: DO NOT ATTEMPT TO OPERATE

PLANER UNTIL IT IS COMPLETELY ASSEMBLED

ACCORDING TO INSTRUCTIONS.

1, KNOW GENERAL POWER TOOL SAFETY. Make sure all precautions are understood and provided for (see page 2),

2.

SECURE ALL FASTENERS. Frequently check that nuts and bolts are tight and have not vibrated loose.

10.

DISCONNECT POWER. Turn switch "OFF" and disconnect power whenever planer is not in use.

CAUTION: DO NOT ALLOW FAMILIARITY (GAINED

FROM FREQUENT USE OF YOUR PLANER) TO BE-

COME COMMON PLACE. ALWAYS REMEMBER THAT

A CARELESS FRACTION OF A SECOND IS SUFF!-

CIENT TO INFLICT SEVERE INJURY.

3, FOLLOW OPERATION INSTRUCTIONS.

Operate the planer as described in the manual.

4.

DO NOT FORCE THE CUT. Slowing or stalling the motor will overheat it. Allow the automatic feed to function properly.

5.

SUPPORT WORKPIECE.

Do not allow the board to hang from the planer. Use support rollers,

The operation of any power tool can result in foreign objects being thrown into the eyes, which can result in severe eye damage.

Always wear safety goggles complying with ANSI Z87.1

(shown on package) before commencing power tool operation. Safety goggles are available at Sears retail or catalog stores.

"THINK SAFETY: Safety is a combination of operator common sense and alertness at all times when the planer is being used.

& USE QUALITY LUMBER.

Blades last longer and cuts go smoother on good wood.

7.

DO NOT PLANE UNDERSIZED WOOD. Boards which are too thin or too short could split while being planed.

8.

TAKE PRECAUTIONS AGAINST KICKBACK.

Do not permit anyone to stand or cross in line with the cutterhead's rotation. A kickback or thrown debris will travel in this direction.

9.

KEEP PLANER MAINTAINED.

Follow maintenance instructions (see page 8).

MOTOR SPECIFICATIONS

MOTOR

The 12 1/2" thickness planer is supplied with a motor and with the wiring installed.

The 120 Volt AC universal motor has the following specifications:

Max. Developed Horsepower ...................

2

Voltage ...................................

Amperes ..................................

Hertz .....................................

120

14

60

& ELECTRICAL REQUIREMENTS

PROPERLY GROUNDED OUTLET

3-PRONG PLUG_I __ 1

GROUNDING PRONG

Phase ..................................

RPM ....................................

Single

8000

POWER SOURCE

1.

The motor is designed for operation on the voltage and frequency specified above.

2.

Normal loads will be handled safely on voltages not more than 10% above or below the specified voltage.

A temporary adapter, which looks like the adapter illustrated below, may be used to connect this plug to a two-pole receptacle if a properly grounded outlet is not available.

The temporary adapter should be used only until a properly grounded outlet can be installed by a qualified electrician.

The green colored grounding lug extending from the adapter must be connected to a permanent ground, such as a properly grounded outlet box.

3.

Running the unit on voltages which are not within the range may cause overheating and motor burnout.

Make sure this is

connected to a known

I

4.

Heaw loads require the voltage at motor terminals be not less than the voltage specified.

ADAPTERI __

GROUNDING INSTRUCTIONS

This tool is equipped with a three-conductor cord and ground type plug which has a grounding prong, approved by Underwriters Laboratories and the Canadian

Standards Association.

Do not remove or alter the grounding prong in any manner.

In the event of a malfunction or breakdown grounding prov des a path of least resistance for electrical current to reduce the risk of electrical shock.

The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Do not modify the plug provided. If it will not fit in the outlet, have the proper outlet installed by a qualified electrician.

Improper connection of the equipment-grounding conductor can result in a risk of e_ectrical shock.

The conductor with insulation having a green outer surface is the equipment-grounding conductor.

If repair or replacement of the electrical cord or plug is necessary, make sure the equipment-grounding conductor is not connected to a line terminal.

Check with a qualified electrician or service personnel if the grounding instructions are not understood, or if in doubt as to whether the tool is properly grounded.

The tool has a three-prong plug, such as the one illustrated.

This tool is intended for use on a circuit having a nominal rating less than 150 volts which has an outlet that looks like the outlet illustrated.

/

I_

GROUNDING LUG

NOTE: The adapter illustrated is for use only if you already have a properly grounded two-prong receptacle.

Adapter is not allowed in Canada by the Canadian

Electrical Code.

EXTENSION CORDS

1.

The use of any extension cord will cause some drop in the voltage and loss of power.

2.

The wires of the extension cord must be sufficient in size to carry the current and maintain adequate voltage.

3.

Use the table below to determine the minimum wire size (A.W.G.) extension cord.

4.

Use only three-wire extension cords which have three-prong grounding type plugs and three-pole receptacles which accept the tool plug.

5.

If power cord is worn, cut or damaged in any way, have it replaced immediately.

ELECTRICAL CONNECTIONS

Extension Cord Length

Upto 50 ft ..................................

50 - 100 ff ...................................

Wire Size A,W.G.

14

10

NOTE: Using extension cords over 100 ft. long is not recommended,

ELECTRmCAL CONNECTIONS

WARNING: MAKE SURE THE UNIT IS "OFF" AND

DISCONNECTED FROM THE POWER SOURCE

BEFORE INSPECTING ANY WIRING.

The motor and wiring are installed as shown in the wiring diagram (See Figure 1).

The motor is assembled with an approved three-conductor cord to be used on 120 volts as indicated.

The power supply to the motor is controlled by a doublepole rocker switch.

Remove the key to prevent unauthorized use.

The power lines are attached to the switch with quick connect terminals.

The green ground line must remain securely fastened to the frame to properly protect against electric shock.

A manual reset overload protector isinstalled in line with the power supply to the motor. If the planer isoverloaded the protector will break the circuit.

tf the circuit breaker is tripped, turn the planer "off" and reset the circuit by pressing the button.

Figure 1

CIRCUIT

BREAKER

@

REEN

(GROUND)

CAUTION: BE SURE TO TURN THE PLANER "OFF"

PRIOR TO RESEN'ING THE CIRCUIT BREAKER TO

AVOID UNINTENTIONAL START-UP OF THE PLANER.

UNPACKING AND CHECKING CONTENTS

Check for shipping damages. If damage has occurred, a claim should be filed with the carrier for fastest action.

The planer comes assembled as one unit.

1.

Additional parts which need to be fastened to the unit should be located and accounted for (See

Figure 2),

2.

The handwheel attaches to either end of the crank shaft.

3.

The knife gauge is provided for removal and adjustment of the knives.

4.

Adjusting tools are also !ocated in the parts bag.

CAUTION: DO NOT ATTEMPT ASSEMBLY IF PARTS

ARE MISSING. USE OWNER'S MANUAL TO ORDER

REPLACEMENT PARTS.

_

Figure 2

ASSEMBLY

CLEAN THE PLANER

Assembly and adjustment procedures are easier to perform on a clean unit. Unpainted steel surfaces have been coated with a shipping preservative.

Remove the preser,,ative with kerosene or penetrating oil. Use soap and water on ruboer and plastic parts. Cleaning fluids tend to deteriorate them. Non-flammable solvents are recommended.

INSTALL HANDWHEEL

Refer to Figure 4.

1.

The handwheel attaches to the shaft (Key No. 17) for cutterhead adjustment.

2.

Place key (Key No. 44) into slot on shaft.

3.

Slide handwheel (Key No. 21) onto shaft. Fasten the handwheel to the shaft with bolt (Key N0.24).

INSTALL KNIFE GUARD

Refer to Figure 5.

1.

The knife guard (Key No. 20) attaches to the roller case. The knife guard directs the flow of chips removed from the Workpiece and protects against unintentional contact with the cutterhead.

WARNING: KNIFE GUARD MUST BE FASTENED

SECURELY PRIOR TO ANY TIME THAT THE PLANER

IS PLUGGED IN TO PROPERLY GUARD AGAINST

ACCIDENTAL CONTACT WITH THE CUTTERHEAD,

2.

Fasten the I_nife guard using the two socket head bolts and lock washers (Key Nos, 29 & 34).

MOUNT PLANER TO WORK SURFACE

Refer to Figure 5.

1.

The planer is designed to be portable so it can be moved to the job site, but it should be mounted to

a stable, level bench or table.

2.

The base of the planer has mounting I_oles in it.

These holes form a rectangle 17 3/4" x 7 1/2". Use a square to mark the position on the work surface.

Mount the planer to the work surface by bolting it through the holes.

4.

Drill pilot holes in suffacefor mounting with lag bolts

(Key No. 41).

5.

Insert bumpers (Key No. 42) into bottom of the base. Fasten planer with lag bolts (Key No. 41) thi'ough mounting holes.

OPERATION

SAFETY PRECAUTIONS

WARNING: precautions.

Always observe the following safety

Whenever adjusting or replacing any parts on the planer turn the switch off and remove the plug from the power source.

Check that all fasteners are securely tightened.

Make sure guards are properly attached. Guards should be fastened securely and working properly.

Make sure that the knives are aligned and properly attached to the cutterhead.

Be certain that all moving parts are clear of interference.

Check that knives rotate freely without obstruction.

Do not plug the planer in unless the switch is in the "off" position. After turning the switch on, allow the planer to come to full speed before operating.

Keep hands clear of all moving parts.

Do not force the work into the knives. Allow the automatic feed to work properly.

Replace or sharpen knives when they become damaged or dull.

Always wear eye protection.

ADJUSTING THE DEPTH OF CUT

Refer to Figure 5.

The height of the cutter blades is shown by indicators

(Ref. N0.24) located on either side of the planer in-feed roller support, The indicators ride on scales (Ref. No. 25) to show the thickness of the planed board.

The thickness is adjusted by rotating the handwheel

(Key No. 21) towards the front of the machine to raise the knife height.

To reduce the knife height, rotate the handwheel towards the back.

Do not set the knife below 13/32". Do not plane a board which is less than 1/2" thick.

The knife height will be moved 1/16" with every complete revolution of the handwheel.

The action between the crank shaft (Key No. 17) and the elevation screws (Key Nos.8,9) is coupled with beveled gears.

If play develops in the action of the handwheels, the gears have become misaligned.

One or both of the gears (Key No.12) on the elevation screws must be repositioned to eliminate the play.

Lower the knife height to access the bevel gears.

Loosen the set screw (Key No.13) and firmly hold the gears together.

DEPTH OF CUT

Thickness planing refers to the sizing of lumber to a desired thickness while creating a level surface parallel to the opposite side of the board.

The quality of thickness planing depends on the operator's judgement about the depth of the cut.

The depth of the cut depends on the width, hardness, dampness, grain direction and grain structure of the wood.

The maximum thickness of wood which can be removed in one pass is 3/32".

For optimum planer performance the depth of the cut should be less than 1/16".

The board should be planed with shallow cuts until the work has a level side.

Once an even surface has been created, flip the lumber and create parallel sides.

Plane alternate sides until the desired thickness is obtained.

When half of the total depth of the cut is taken from each side, the board will have a uniform moisture content and additional drying will not warp it.

The depth of cut should be shallower when the work is wider.

Tighten the set screw to lock the position.

When the depth of cut adjustment is operating correctly, make sure that the indicator is positioned correctly.

Make a test cut on a piece of wood and measure the thickness produced.

Loosen the screw (Key No.22) (Refer to Figure 5) and set the indicator to show the thickness produced.

When planing hard wood, take light cuts or plane the wood in thin widths.

Make a test cut when working with a new type of board or different kind of operation.

Check the accuracy of the test cut prior to working on finished product.

Figure 3

OPERATION

ADJUSTING THE KNIFE HEIGHT

Refer to Figure 5.

To produce an even surface on a workpiece, the knife edges must be the same distance from the axis of the cutterhead.

A knife gauge (Key No.31) has been provided to make knife adjustment more convenient.

Remove the cutterheed guard (Ke_ No.20) by removing the fastening bolts (KeyNo.29).

Rotate the cutterhead to access one knife. Use caution

-the blades are sharp.

Position the knife gauge on one side of the cutterheed.

Hold the gauge against the cutterhead so the contact point is over the knife (See Figure 3).

While holding the gauge, use a hex wrench to loosen the locking bolts.

Ad ust the knife by turning the adjustment screw. Turn coiJnterclockwise to ra se the blade.

Adjust the blade so it touches the contact point while the gauge is firmly held against the cutter head.

Adjust the other side of the blade in the same manner and tighten the locking bolts securely.

Adjust the other knife in the same manner.

Replace the cutterhead guard and fasten it securely.

ADJUST THE BASE ROLLERS

Refer to Figure 4.

The base of the planer has two rollers in it to improve feed action.

The cutterhead of the planer is parallel to the bed of the planer.

The workbase rollers (Key No.2) are positioned beneath the feed rollers to compensate for the pressure created by the automatic feed.

The height was set during manufacturing, but should be checked occasionally.

The rollers should be adjusted about 0,003" above the table surface.

Use a straightedge across the two rollers and use a feeler gauge to check the height.

Examine the adjustment of the rollers in several spots to determine that both rollers are at the correct level in all spots.

If the rollers require adjustment, loosen the set screws

(Key No.4) and turn the eccentric adjuster (Key No.3) to position the roller.

Re-check the rollers until the proper position is located.

Secure the position by tightening the set screw.

ADJUSTING THE SUPPORT ROLLERS

The support rollers should be adjusted to help keep the portion of the work which is outside the planer in line.

Use a straightedge to align the roller plate so the roller height is even with the planer bed.

Loosen the nuts (Key No.31) and adjust the height with the hex bolts (Key No.38).

Make sure that both of the hex bolts hold the position of the roller plate. Hold the hex bolt with an open end wrench and secure the adjustment by tightening the nut.

(Continued)

Check the alignment of the support roller at each end with a straightedge.Use

the eccentric bushings (Key

No.36) to adjust the position of the roller.

Lock the position by tightening the socket head bolts

(Key No.7).

AVOID DAMAGE TO BLADES

The thickness planer is a precision woodworking machine and should be used on quality lumber only.

Do not plane dirty boards. Dirt and small stones are abrasive and will wear the blade.

Remove nails and staples to avoid damaging the blades.

The planer should only cut wood.

Avoid knots. Heavy cross-grain makes knots hard. Also, knots can come loose an;d jam the blade.

CAUTION: Any particle that may encounter the planer knives may be projected from the planer, creating the risk of a hazard.

PREPARING THE WORK

The thickness planer works best when the lumber has at least one flat surface.

Use a surface planer or jointer to define a flat surface.

Twisted or severely warped boards can jam the planer.

Rip lumber in half to reduce the magnitude of the warp.

The work should be fed with the grain. Sometimes the grain will switch directions in the middle of the cut.

If possible, cut the board in the middle before planing so the grain direction is correct.

CAUTION: DO NOT PLANE A BOARD WHICH IS LESS

THAN 12" LONG. THE FORCE OF THE CUT COULD

SPLIT THE BOARD AND CAUSE A KICKBACK.

FEEDING THE WORK

The feed rate refers to the rate at which the lumber travels through the planer.

The planer feed is automatic. It will vary slightly, depending on the type of wood cut.

The operator is responsible for aligning the work so it will feed properly.

Stand on the side of the planer to which the height adjustment handwheel was attached.

Lift the work to the in-feed support roller by grasping the edges of the board at approximately the middle of the length.

Boards longer than 24" should have additional support from freestanding material stands.

Rest the board end on the in-feed support roller and direct the board into the planer.

Push slightly on the board and allow the automatic feed to take the board. Release the board and allow the automatic feed to function properly. Do not push or pull on the workpiece.

CAUTION: DO NOT STAND DIRECTLY IN LINE WITH

THE FRONT OR REAR OFTHE PLANER. WHEN AN OB-

JECT IS PROJECTED FROM THE PLANER IT WILL

TRAVEL IN THIS DIRECTION.

OPERATION

FEEDING THE WORK (CONTINUED)

Move to the rear and receive the planed lumber by grasping it in the same manner as it was fed.

Do not grasp any portion of the board which has not g one past the out-feed support roller.

Repeat this operation on all the boards which need to be the same thickness or adjust the height.

The planer has return rollers on top so an assistant can pass work back to the operator.

NOTE: An assistant must follow the same precautions as the operator.

The surface that the planer will produce will be smoother if: a shallower depth of cut is used.

A snipe is a depression at either end of the board, caused by an uneven force on the cutter head when work is entering or leaving the planer.

A snipe will occur when boards are not supported properly (see Adjusting the Support Rollers).

A slight snipe may still be noticed when the board is supported.

(Continued)

An uneven force is created when only one feed roller is in contact with the work at the beginning or end of the cut.

The snipe is more apparent when deeper cuts are being taken.

When planing more than one board of the same thickness, butt the boards together to avoid the snipe.

Feed the work in the direction of the grain. Wood fed against the grain will have chipped, splintered edges.

CHECKING FOR WORN KNIVES

The condition of knives will affect the precision of the cut.

Observe the quality of the cut which the planer produces to check the condition of the knives.

Dull knives will tear, rather than sever wood fibers, and produce a fuzzy appearance.

A raised grain will occur when dull knives pound on wood that has a varying density.

A raised edge will be produced where the knives have been nicked.

MAINTENANCE

Planer will operate best if it is kept in good condition.

Keep the unit adjusted as described in OPERATION.

Also, the knives must.be kept clean and sharp to ensure the quality of cut and efficiency of operation.

WARNING: MAKE CERTAIN THAT THE UNIT IS

D_SCONNECTED FROM THE POWER SOURCE

BEFORE ATTEMPTING TO SERVICE_ OR REMOVE

ANY COMPONENT.

CLEANING THE KNIVES

Gum and pitch will collect on knives and cause excess friction when working. Knives will overheat and wear at an accelerated rate. Use a gum and pitch remover to keep blades clean.

WHETTING THE KNIVES

Knives can be kept sharp by whetting them with a sharpening stone.

Remove the cutterhead guard. Partially cover the stone with paper to protect the roller case.

Position cutterhead so stone will contact knife along its beveled surface.

Stroke the stone across knife from one side to the other while stone is also moved slightly in the direction of the feed.

Make sure to do the same number of strokes on both knives.

Replace the cutterhead guard.

REMOVING KNIVES

Knives that are noticeably nicked or worn must be resurfaced to a new beveled edge.

Remove knives one at a time. Hold knife with knife gauge

(see Figure 3).

Loosen the knife locking bolts and remove knives.

NOTE: Many shops do not have the capability to resurface knives. The Yellow Pages should list "Sharpening

Services" or "Tool Grinding".

REPLACEMENT KNIVES

Often replacing knives is less expensive than resurfacing them. Keeping a spare set of knives on hand is recommended.

Knives should always be sharpened or replaced as a matched set.

To replace the sharpened knives reverse the steps used in removing the knives. Adjust knives as described in AD-

JUSTING THE KNIFE HEIGHT, page 7.

LUBRICATION

Motor and cutterhead bearings are sealed and need no lubrication.

Height adjustment guides and elevation screws should be cleaned of debris and greased when needed.

Occasionally apply a few drops of light machine oil to the gibs to keep the roller casing sliding freely in relation to the base.

TROUBLE SHOOTING

PROBLEM

Snipe

(Gouging at ends

of Board)

Fuzzy Grain

Torn Grain

Rough Raised

Grain

Uneven Depth

Cut Side to side

Cutterhead

Elevation

Adjusts with

DifficUlty

Board Thickness

Does Not Match

Depth Of Cut

Scale

Chain Jumping

ON/OFF

W'iil Not Turn On

POSSIBLE CAUSE REMEDY

2.

Inadequate support of long boards

3.

Uneven feed rol! pressure

4.

Cutter casting not aligned

5.

Lumber not butted properly

6.

Dull knives

Support rollers misaligned

1.

Replace or sharpen knives per instructions

(See "Maintenance", Page 8)

2.

Support long boards

3.

Checkfeed roll operation

4.

Check position on elevation screws

5.

Butt end to end each piece of stock as boards pass through planer

6.

Adjust support rollers

1.

Planing wood with a high moisture 1.

Remove high moisture content from wood content by drying

1, Too heavy a cut

2, Knives cutting against grain

3, Dull knives

1.

Review"Depth of Cut", Page 6

2.

Review"Feeding the Work", Page 7

3.

Replace or sharpen knives per instructions

(See "Maintenance", Page 8)

1, Dull Knives

2.

3.

Too heaw a cut

Moisture content too high

1.

Knife projection not uniform

1, Replace or sharpen knives per instructions

(See "Maintenance", Page 8)

2.

Review "Depth of Cut", Page 6

3.

Dry the wood or use dried wood

2.

2.

Cutterhead not leveled to planer bed

1.

Beveled gears dirty

2.

Elevation screws dirty

3.

Gears or screws worn

4.

Friction between casing & covers

1.

Indicator not set correctly

Knife projection incorrect

1.

Adjust knife projection (See "Adjust the Knife

Height", Page 7)

2, Rollerhead case not level; adjust elevation screws

1, Clean and lubricate beveled gears

2.

Clean and lubricate elevation screws

3.

Replace

4.

Clean, lubricate

1.

Adjust indicator/securely tighten

2.

Set knife projection correctly

(See "Maintenance", Page 8)

1.

Sprockets worn

2.

Chain worn

1.

2.

Switch malfunction

Circuit breaker tripped

1.

2.

1.

2.

Replace sprockets

Replace chain

Have a qualified electrician replace the

ON!OFF switch

Reset circuit breaker. (Be sure planer is disconnected from power source.)

o

Z1

5

5 2

Figure 4 - Replacement Parts Illustration for Base

4Z

!

53

T

7 35

3O

15

37

3

39

52

55

7

36

REPLACEMENT PARTS LIST FOR BASE

KEY

No.

DESCRIPTION

20

21

22

23

16

17

18

19

11

12

13

14

15

3

4

1

2

5

6

7

8 '

9

10

Base

Base roller

Eccentric adjusters

Set screw, 6mm - 1.0 x 8

* Bearing, 608

Guide plate

Bolt, socket head, 6mm-1.0 x 10

Elevation screw, LH. thread

Elevation screw, R.H. thread

Set plate

Spring

Beveled gear

Set screw, 6mm - 1.0 x 10

Cover, left side

Cover, right side

Bracket

Shaft

"E" Ring, 12mm

Key, 4mmx 10mm

Beveled gear

Handwheel

Handle, handwheel

Handle screw

PART

No.

3801.00

3802.00

3803.00

1043.00

STD315485

3805.00

3806.00

38O7.O0

3808.00

3809.00

3810.00

3811.00

0183.00

3813.00

3814.00

3815.00

4268.00

3817.00

1531.00

3818.00

4271.00

3820.00

!

QTY.

4

4

1

2

4

2

2O

1

1

2

2

1

2

2

2

1

1

I

2

2

4

1

KEY

NO.

34

35

36

37

38

39

40

41

42

43

44

24

25

26

27

28

29

30

31

32

33

DESCRIPTION

Bolt, socket head, 6mm-1.0 x 16

Top cover

Support roller

Washer, lock, 8mm

Top handle

Bolt, socket head, 8mm-1.25 x 20

Roller plate

Hex nut, 6ram - 1.0

Washer, wavy, 8mm

Pivot bolt

Top roller

Washer, lock, 6mm

Eccentric bushing

Shaft cover

Bolt, hex head, 6ram-1.0 x 25

Screw, pan head, 6ram-1.0 x 10

Spacer

Lag bolt

Bumper, (Set of 4)

Washer, flat, 6mm

Key, 4ram x 8mm

3821.00

!

1

Always order by Part No.; Not by Key No.

* Standard hardware item available locally.

PART

No.

1760.00

3822.00

3823.00

0824.00

3824.00

1064.00

3825.00

0875.00

3826.00

3827.00

3828.00

1514.00

3830.00

3852.00

0870.00

3812.00

3887.00

1649.00

3890.00

0871,00

3873.00

QTY.

4

2

4

8

4

2

4

4

1

4

1

4

2

1

2

1

1

4

4

4

1

31

10

2O

12

3

1

24

22

2

6

28

Figure 5 - Replacement Parts Illustration for Roller Case

14

12

24

REPLACEMENT PARTS LIST FOR ROLLER CASE

21

22

23

24

16

17

18

19

20

25

26

27

28

29

30

31

32

33

34

11

12

13

14

15

8

9

6

7

10

Key

No.

1

2

3

4

5

Description

Roller case

Cutterhead

Planer knives, (set)

Cutter head gib, (set)

Bolt, flat head, 5ram - .80 x 12

* Bearing, 6202

Retaining ring, Int. - 35ram

* Bearing, 6203

Retaining ring, Int. - 40mm

Key, 5ram x 10ram

Drive pulley

Poly V-belt, 135J-6

Nut, 16ram - 1.50

Feed roller

Retaining bracket

Spring

Bracket

Screw, pan head, 5ram-.80 x 10

* Retaining ring, Ext. - 15mm

Knife guard

Belt guard

Screw, pan head, 4mm-.70 x 8

Wear plate

Indicator

Scale

Knife locking bolt

Chain sprocket

Chain, #410 - 26P

Bolt, socket head, 5ram-.80 x 10

Spacer

Knife gauge

Washer, flat, 4mm

Roll pin, 4ram x 8mm

Washer, lock, 5mm

Part

No,

3831.00

3832.00

3833.00

3834.00

3835.00

STD315225

3836.00

STD315235

3838:00

3839.00

3840.00

3841,00

3829.00

3842.00

3843.00

3844.00

3845.00

1784.00

STD582056

3847.00

3848.00

0781.00

3849.00

3850.00

3851.00

2706.00

3853.00

3854.00

3855.00

3856.00

3879.00

3888.00

4282.00

1808.00

* Standard hardware item available locally.

2

2

1

14

3

4

2

1

4

2

8

2

4

4

1

4

2

1

4

1

1

1

1

1

1

1

1

2

4

Qty.

1

1

1

1

4

13

51

10

> 5O

3O

5o

29

3

2

45

\

_ \43

32

27

48

33

Figure S- Replacement Parts Illustration for Motor

52

REPLACEMENT PARTS LmST FOR MOTOR

13

14

15

9

10

11

12

6

7

8

KEY

NO.

1

2

3

4

5

16

17

18 t9

20

21

23

24

25

26

27

DESCRIPTION

Motor housing

Stator

Fan casing

Fan

Aligning bushing

* Bearing, 620t

Armature

* Bearing, 6200

Motor pulley

Brush holder

Carbon brush, (set of 2)

Brush cap

5-.80 x 10ram Screw, set

Gear box bracket

Gear box

Pinion shaft

Gear

4 x 8mm Key

Pinion shaft

Gear

3 x 8ram Key

Gear

Gear shaft

* Bearing, 6202

4 x 10ram Key

* 15ram Retaining ring, external

* Bearing, 6002

* Standard hardware item, available Iocally.

o Not shown.

1" Assembly includes Key Nos. 1 through 50 (except for Key No. 28).

1838.00

3869.00

3870.00

3871b0

3872.00

3873.00

3874.00

3875.00

3846.00

3876.00

3877.00

STD315225

1531.00

STD582056

STD315525

PART NO.

3857.00

4283.00

4284.00

3860.00

3861.00

STD315215

4285.00

STD315205

3865.00

3866.00

3867.00

3868.00

1

1

1

1

2

1

1

1

1

1

2

1

1

1

1

QTY.

1

1

4

1

1

1

1

2

1

2

1

1

38

39

40

41

35

36

37

42

32

33

34

KEY

NO.

28

29

30

3t

48

49

50

51

52

43

44

45

46

47

@

DESCRIPTION

Chain sprocket

Switch cover

Switch box

Switch with key

Circuit breaker

Switch bracket

4-.70 x 8ram Screw, pan head

Line cord

Line cord holder

Line cord clamp

4-1.50 x 16ram Screw, pan head

5-1.60 x 50ram Screw, pan head

Aligning pin

6-1.60 x 20ram Bolt, socket head (TF)

6-1.0 x 20ram Bolt, socket head

Hitch pin

5mm Washer, star

5-1.60 x 60ram Screw, pan head

6mm Washer, lock

4ram Washer, fiat

5-.80 x 10ram Screw, pan head

Terminal connector

5-1.60 x 70ram Screw, pan head

1"Motor assembly

Gear box assembiy

Owner's Manual

PART NO.

3853.00

3880.00

4286.00

0423.00

4287.00

3891.00

0781.00

3882.00

3883.00

3884.00

3885.00

1544.00

3886.00

3180.00

!515.00

3889.00

1474.00

1643.00

1514.00

3888.00

1504.00

1251.00

4288.00

6548.00

6549.00

4290.01

4

2

1

3

3

1

3

2

2

1

1

4

2

1

2

1

1

1

QTY.

1

I

1

1

2

1

1

1

OWNER'S

_ANUAL

SERVICE

12 1/2"

ickness Planer

Thank you for purchasing your 12 1/2" Thickness Planer from

Sears. This unit will provide you with many years of reliable service. Should the need exist for repair parts or service, simply contact any Sears Service Center and most Sears,

Roebuck and Co. stores. Be sure t o provide all pertinen t facts when you call or visit. The model number of your Thickness

Planer ls on the side of the planer.

MODEL NO.

351.233731

HOW TO ORDER

REPAIR PARTS

All parts listed may be ordered from any Sears Service

Center and most Sears stores. If the parts you need are not stocked locally, your order will be electronically transmitted to a Sears Repair Parts Distribution Center for handling.

When ordering replacement parts, always give the following information:

NAME OF ITIEM: 12 1/2" Thickness Planer

MODEL NUMBER: 351.233731

PART NUMBER:

PART DESCRIPTION:

Sold by SEARS_ ROEBUCK AND CO., Chicago, iL 60684 U.S.A. ©

_,..o. 0,_.. ,,._

n_ O_t_her 1991