Oregon Scientific 310-120 Original Instruction Manual

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Original Instruction Manual Bench Mounted Mini Grinder Model 310-120

Manuel d’instructions original Petite affûteuse d’établi modèle 310-120

Manual original de instrucciones Mini esmeriladora montada en banco modelo 310-120

310-120

ENGLISH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

WARNING: READ AND UNDERSTAND ALL SAFETY WARNINGS AND ALL INSTRUCTIONS. FAILURE TO FOLLOW THE

WARNINGS AND INSTRUCTIONS MAY RESULT IN ELECTRIC SHOCK, FIRE AND/OR SERIOUS INJURY.

SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE.

This instruction manual contains translations of a manual drafted in English and are provided to assist those who do not speak English as their first language. Being a technical writing, some terms may not have a like or equivalent meaning as translated. Therefore, you should not rely on this translation, and should cross-reference the English version, where relying on the translated instructions could result in harm to your person or property.

FRANÇAIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

AVERTISSEMENT : VEUILLEZ LIRE ET COMPRENDRE TOUS LES AVERTISSEMENTS DE SÉCURITÉ ET

TOUTES LES INSTRUCTIONS. LE NON-RESPECT DES AVERTISSEMENTS DE SÉCURITÉ ET DES INSTRUCTIONS PEUT ENTRAÎNER UNE DÉCHARGE ÉLECTRIQUE, UN INCENDIE ET/OU DES BLESSURES GRAVES. CONSERVEZ L’ENSEMBLE DES AVERTISSEMENTS ET INSTRUCTIONS POUR RÉFÉRENCE ULTÉRIEURE.

Ce manuel d’instructions est une traduction d’un manuel rédigé en anglais, fournie pour aider ceux dont l’anglais n’est pas la langue maternelle. Étant donné qu’il s’agit d’un document technique, certains termes peuvent ne pas avoir de signification similaire ou équivalente lorsqu’ils sont traduits. Par conséquent, vous ne devez pas vous fier à cette traduction et devriez consulter la version anglaise également, au cas où les instructions traduites pourraient provoquer des blessures ou des dommages matériels.

ESPAÑOL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

ADVERTENCIA: LEA Y COMPRENDA TODAS LAS ADVERTENCIAS DE SEGURIDAD Y LAS INSTRUCCIONES.

LA OMISIÓN EN SEGUIR ESTAS ADVERTENCIAS E INSTRUCCIONES PODRÍA OCASIONAR UNA DESCARGA ELÉCTRICA, UN INCENDIO Y/O LESIONES PERSONALES GRAVES.

GUARDE TODAS LAS ADVERTENCIAS E INSTRUCCIONES PARA REFERENCIA FUTURA.

Este manual de instrucciones contiene traducciones de un manual redactado en inglés y se provee para ayudar a aquellas personas que no hablan inglés como su primer idioma. Dado que el manual es un documento técnico, es posible que algunos términos no tengan un significado similar o equivalente al traducirlos. Por lo tanto, no debe confiar en esta traducción y debe consultar la versión en inglés; confiar en las instrucciones traducidas podría provocar lesiones personales o daños materiales.

310-120

Table of Contents

Symbols & Labels ..........................................................................5

Safety Information .........................................................................6

Safety Rules & Precautions ....................................................................6

Setting up the Grinder .........................................................................8

Electrical Connection ..........................................................................8

General Information ...........................................................................8

Using and Keeping the Operator’s Manual .......................................................8

Safety Devices ................................................................................8

Intended Use .................................................................................9

Technical Data ................................................................................9

Part Description ..........................................................................10

Grinding Angles Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Instumental Measurments ..................................................................12

Preparing for Use .........................................................................13

Mounting the Base Unit – Bench ...............................................................13

Attaching the Vise to the Base Unit ............................................................13

Choosing & Installing the Grinding Wheel ......................................................14

Placing the Chain in the Vise ................................................................17

Operating Instructions .....................................................................20

Sharpening the Chain ........................................................................20

Setting the Depth Gauge ......................................................................22

Stopping & Shutting Down ..................................................................24

Maintenance & Cleaning ....................................................................25

Demolition & Disposal .....................................................................26

Warranty & Service ........................................................................26

Oregon Limited Warranty .....................................................................26

Troubleshooting ..........................................................................27

310-120

Names & Terms

Symbols & Labels

Names & Terms

Skilled Technician: a person who is generally employed by the service center and who is trained to carry out

extraordinary maintenance jobs and repairs on the machine.

Symbols & Labels

These symbols and labels appear on the tool and/or in this manual.

SYMBOL NAME EXPLANATION

SAFETY ALERT SYMBOL

INDICATES THAT THE TEXT THAT FOLLOWS EXPLAINS A DANGER, WARNING, OR CAUTION.

READ INSTRUCTIONS

THE ORIGINAL INSTRUCTION MANUAL CONTAINS IMPORTANT SAFETY AND OPERATING INFORMATION. READ AND FOLLOW THE INSTRUCTIONS CAREFULLY.

WEAR EYE PROTECTION WEAR EYE PROTECTION.

WEAR HAND PROTECTION WEAR GLOVES WHEN HANDLING SAW CHAIN.

DO NOT DISPOSE

DO NOT THROW IN HOUSEHOLD WASTE. TAKE TO AN AUTHORIZED RECYCLER.

DAMAGED CABLE

INSPECT THE POWER CORD REGULARLY FOR DAMAGE. REMOVE THE PLUG FROM THE MAINS IMMEDIATELY IF THE CABLE IS DAMAGED OR CUT.

UNPLUG BEFORE MAINTENANCE

UNPLUG BEFORE PERFORMING ANY MAINTENANCE.

310-120

Safety Information

FOR YOUR OWN SAFETY READ AND UNDERSTAND THIS OPERATOR’S MANUAL BEFORE OPERATING GRINDER

Keep this manual for future reference. To ensure the correct use of the grinder and to prevent accidents, do not start working without having read this manual carefully. The manual explains how the various components work and provides instructions for carrying out the necessary checks and maintenance operations.

SAFETY RULES AND PRECAUTIONS

WARNING The use of accessories or attachments not recommended by the manufacturer may result in a risk of injury to operator or bystander. Any maintenance operation not described in this manual must only be carried out by an AUTHORIZED service center.

WARNING Replace cracked or damaged grinding wheel immediately. Serious injury to operator or bystander could result from a damaged wheel.

CAUTION The following instructions should be carefully followed in order to reduce the risk of kickback resulting from improperly sharpened saw chain.

USERS

The grinder must only be used by adults. Users must be in good physical condition and familiar with the instructions for use.

KEEP BYSTANDERS AND CHILDREN AWAY

All bystanders should be kept at a safe distance from work area.

WEAR PROPER APPAREL

Never wear loose clothing, bracelets, neckties, rings or any other jewelry that could come into contact or get caught with the grinding wheel or any other moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair.

ALWAYS USE SAFETY GLASSES AND GLOVES

Always wear gloves and protective eyewear while operating the grinder and while retouching the grinding wheel using the dressing stone. Also use face or dust mask if cutting operation is dusty. Everyday eyeglasses only have impact resistant lenses, they are NOT safety glasses.

NEVER STOP THE WHEEL WITH YOUR HANDS

Never attempt to stop the rotation of the grinding wheel with your hands.

DISCONNECT TOOLS BEFORE SERVICING

Make sure the plug is disconnected when ﬁtting or changing the grinding wheel and during any other operation of maintenance or transport.

KEEP GUARDS IN PLACE AND IN WORKING ORDER

Never start the grinder without the wheel guards in place.

REMOVE ADJUSTING KEYS AND WRENCHES

Make sure that keys and adjusting wrenches are removed from tool before turning it on.

DON’T FORCE TOOL

It will do the job better and safer at the rate for which it was designed. Each grinder has a plate indicating:

– Size of arbor: Ø .87" (22.2 mm) – No-load speed in revolutions per minute: RPM 5000 – Always read operator’s manual

before operating the machine – Always wear eye and face protection – Always use the proper grinding wheel Also make sure that the voltage and frequency

indicated on the plate applied to the grinder correspond to those of the mains hook-up.

REDUCE THE RISK OF UNINTENTIONAL STARTING

Always make sure that the start-up switch is in the “0" (OFF) position before connecting the plug to the outlet.

NEVER USE CABLES, PLUGS OR EXTENSION CABLES THAT ARE DEFECTIVE OR NON-STANDARD

See “Minimum Extension Cord Gauges” table on page

8. Remove the plug from the mains immediately if the cable is damaged or cut; for cable repair or replacement, contact your authorized dealer or service center. The power supply cable is complete with terminals – with protection. The internal electrical connection consists of inserting the feeding cable terminals directly in the switch. The electrical connection to the mains shall be made in such a way as to prevent damage by people or vehicles which could endanger both them and you.

KEEP WORK AREA CLEAN

Cluttered areas and benches invite accidents. Make sure that the grinding wheel working area is free of tools or other objects before starting up the grinder. Frequently clean grinding dust from beneath grinder.

DON’T USE IN DANGEROUS ENVIRONMENTS

Don’t use power tools in damp or wet location, or expose them to rain. Keep work area well lighted.

310-120

Safety Information

CHECK THE POSITION OF THE CABLE DURING OPERATION

Make sure that the cable remains outside the range of action of the grinding wheel and is not under tension. Never operate in the vicinity of other electrical cables.

DIRECTION OF FEED

Feed work into a blade or cutter against the direction of rotation of the blade or cutter only. Never advance the chain with your le hand until the grinding wheel has moved entirely outside the work area.

MAKE WORKSHOP CHILD PROOF

Use padlocks, master switches. Do not allow anyone but the user to remain in the vicinity of the grinder while it is operating or to touch the grinder supply cable.

ALWAYS KEEP THE HAND GRIPS CLEAN AND DRY

SECURE GRINDING WHEEL

Make sure the grinding wheel is secure before starting the grinder. Tighten the wheel nut with your hands to ensure a secure fit. Do not over-tighten the wheel nut.

SECURE WORK

Make sure that the machine is stable and ﬁrmly secured. Use the vise to hold chain. This frees both hands for moving the wheel down to grind the chain.

DON’T OVERREACH

Keep proper footing and balance at all times.

NEVER STAND ON TOOL

Always work in a stable and safe position. Serious injury could occur if the tool is tipped or if the cutting tool is unintentionally contacted.

ALWAYS FOLLOW MAINTENANCE INSTRUCTIONS CHECK FOR DAMAGED PARTS

Before using the grinder, check to make sure that all the devices, those for safety and others, are in good working order. A guard, a wheel or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function – check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may aﬀect its operation. A guard, a wheel, or other part that is damaged should be properly repaired or immediately replaced.

USE RECOMMENDED ACCESSORIES

Consult the operator’s manual for recommended accessories. The use of improper accessories may cause risk of injury to persons. Use only ﬂanges furnished with the grinder. To guarantee the eﬃcient and consistent operation of your grinder, remember that any worn or broken parts must only be replaced using ORIGINAL SPARE PARTS.

USE ONLY RECOMMENDED GRINDING WHEELS CHECK YOUR MACHINE

Never work with a damaged, poorly repaired, incorrectly ﬁtted, or arbitrarily modiﬁed grinder. Do not remove, damage, or disable any safety device.

USE THE RIGHT TOOL

Never use the grinder as a cutter or for grinding objects other than saw chains. Don’t force tool or attachment to do a job for which it was not designed.

EXPERT USERS ONLY

Lend your grinder only to expert users who are familiar with its operation and correct use, and always give them the operator’s manual to read before they start a job.

MAINTAIN TOOLS WITH CARE

Keep tools sharp and clean for best and safest performance. Follow instructions for lubricating and changing accessories.

STORE YOUR GRINDER IN A DRY PLACE

Keep it oﬀ the ground and out of the reach of children.

NEVER LET YOUR GRINDER BE EXPOSED TO RAIN OR DAMPNESS

NEVER USE THE GRINDER IN AN EXPLOSIVE OR INFLAMMABLE ATMOSPHERE

TAKE THE GRINDER TO YOUR DEALER

When your grinder is not in working order, do not abandon it on the work site or elsewhere. Take it to your dealer who will store or dispose of it correctly.

CONSULT YOUR DEALER

Always consult your dealer for any clariﬁcation or important maintenance or repair operation.

NEVER JERK THE CABLE TO DISCONNECT IT FROM THE OUTLET

Keep the cable away from heat, oil, and sharp objects.

310-120

Safety Information

USE PROPER EXTENSION CORD

Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.

The table below shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

Minimum Extension Cord Gauges for 310-120 Grinder

Length Gauge, AWG

25 . / 7.6 m 18

50 . / 15.2 m 16

100 . / 30.5 m 16

150 . / 45.7 m 14

NEVER LEAVE TOOL RUNNING UNATTENDED

Turn power oﬀ. Do not leave tool until it comes to a complete stop.

Setting up the Grinder

CAUTION The grinder must only be used in a place that is protected from dust and dampness, is well-lit, out of the reach of children, and away from gases or other ﬂammable or explosive liquids.

Avoid using dangerous extension cables.

Electrical Connection

– Make sure the electrical system power

supply complies with the values written on the rating nameplate.

– The power supply voltage must not diﬀer from

that written on the nameplate by ±5%.

– The connection to the electric mains must be

prepared subject to current standards in force in the country in which the machine is used.

General Information

The manufacturer is not liable for damages in the following cases:

– Failed observance of the instructions given herein; – Use of the machine other than that described

in the “INTENDED USE” section;

– Failure to use in compliance with current

standards on Health & Safety at the workplace; – Incorrect installation; – Lack of scheduled maintenance; – Modiﬁcations or jobs that are not

authorized by the manufacturer; – Use of non–original or inadequate spare parts; – Repairs that are not carried out by a specialist.

Using and Keeping the Operator’s Manual

The characteristics and the information given in this manual are merely indicative. The manufacturer reserves the right to add any modiﬁcations to the grinder considered necessary at any time. It is forbidden to reproduce any part of this document without authorization on behalf of the manufacturer.

The operator’s manual is an integral part of the machine and must be kept in a safe place so that it can be consulted whenever need be. If you should lose your manual or it should deteriorate, you can request your dealer or an authorized service center for another copy. The manual shall accompany the machine at all times.

Safety Devices

The grinder is equipped with the safety devices illustrated on page 10:

– Shield guards: they protect the operator from

parts of the grinding wheel that may come away

during the sharpening process. These guards must

always be ﬁtted in place when the machine is in use.

Always make sure the guards are eﬃcient and ﬁtted

properly. Operator safety could be compromised

if the guards are damaged and/or cracked. – Switch: the machine features a safety switch with

release coil. In the case of a sudden power failure,

the switch trips automatically and disconnects

the machine from the mains. The machine will

not start even if the power supply is suddenly

restored. You need to restart the grinder by

turning the on-oﬀ switch to the on position,“I”.

310-120

Safety Information

Intended Use

This machine is an electrical grinder for saw chains used on chain saws.

– Use the machine exclusively for the types of

chains stated in the technical data chart.

– Do not use the machine to cut or grind

anything other than saw chain. – Secure the machine ﬁrmly to the bench or wall. – The machine must not be used in

corrosive or explosive environments. – Any other use is to be considered improper. The

manufacturer is not liable for damages following

improper or incorrect use of the machine.

Technical Data

Model 310-120

Voltage 120V~ 60Hz

Rated power 85W

Grinding wheel

dimensions

Outside Ø : 4 1/8" (105 mm)

Inside Ø: 7/8" (22,2 mm)

Thickness: 1/8" (3.2 mm) 3/16" (4.7 mm) 1/4" (6.4 mm) [not included] 5/16" (8.0 mm) [not included]

Maximum speed of

grinding wheel

4600 min

-1

Types of chains that

can be sharpened

1/4" .325" 3/8" .404"

Weight

(complete machine)

4.6 lbs. / 2.1 kg

310-120

Part Description

310-120

Part Description

The grinder is supplied already partially assembled.

A. Motor unit B. Vise assembly C. Grinding wheel 5 3/4" x 1/8" x 7/8" (145 x 3.2 x 22.2 mm) (installed) 5 3/4" x 3/16" x 7/8" (145 x 4.7 x 22.2 mm) D. Measuring template E. Dressing brick F. Motor brushes (2)

1. Operating handle

2. Grinding wheel guard

3. Grinding wheel guard screws (3)

4. Grinding wheel ﬂange knob

5. Grinding wheel ﬂange

6. Depth adjustment knob

7. Chain stop adjustment knob

8. Chain stop

9. Vise handle

10. Vise (chain jaws)

11. Vise rotate angle guide plate

12. Vise adjustment knob 13 Vice reference mark pointers

310-120

Grinding Angles Chart

Instrumental Measurements

Grinding Angles Chart

X A D

Code Oregon Chain Part Number Wheel Width Vise Rotate Angle Depth Gauge

A 25AP 1/8" 30° .025" 0.65 mm R 90PX 1/8" 30° .025" 0.65 mm S 91PX

1/8" 30° .025” 0.65 mm91P, PXL

T 91VXL

H 20BPX

3/16" 30° .025” 0.65 mmJ 21BPX L 22BPX G 95VPX 3/16" 30° .025” 0.65 mm Q 20LPX

3/16" 25° .025” 0.65 mm

21, 22LPX

M 95TXL 3/16" 35° .025” 0.65 mm D 72V

3/16" 25° .025” 0.65 mmP 73V

75V

E 72LPX

3/16” 25° .025” 0.65 mm73, 75LPX

72, 73, 75LGX

Instrumental Measurements

A Measure the gauge

depth using the suitable shape.

B Measure the

cutter length.

C Measure the

chain pitch.

310-120

Preparing for Use

ATTENTION Do not install the machine at eye level. You are recommended to install it at a height of no more than

3.9 to 4.2 feet (1.2 – 1.3 m) from the ﬂoor.

Mounting the Base Unit – Bench

Bench-Mounting

Insert two (2) appropriate bolts, complete with washers and nuts (not supplied), in the securing holes. Make sure you position the base unit hanging over the edge of the bench as shown in the detail.

Attaching the Vise to the Base Unit

Remove the vise-adjustment knob (12) from the vise assembly (B) by unscrewing clockwise.

Place the bolt on the vise assembly (B) into the hole on the motor unit (A) and reattach the vise adjustment knob (12).

310-120

Preparing for Use

Choosing & Installing the Grinding Wheel

WARNING

– Do not force the grinding wheel (C) on the ﬂange (5) and do not alter the center hole

diameter. Do not use grinding wheels that do not ﬁt perfectly in place.

– Ensure ﬂange knob (4) and ﬂange (5) are clean and intact.

Choose the Grinding Wheel

1/8" grinding wheel is installed at factory. Choose the correct size grinding wheel

based on the type of chain to be sharpened (see the chain chart on page 12).

Testing the Grinding Wheel

Hold the grinding wheel (C) up by its center hole. Knock the edge of the grinding wheel gently with a non-metallic object. If it makes a dull, non-metallic noise it means that the wheel could be damaged: DO NOT USE IT!

Remove the Wheel Shield

Using a Phillips-head screwdriver remove the grinding wheel guard (2) by removing the three screws (3).

Remove Flange

Remove the grinding wheel ﬂange knob (4) by unscrewing it counter-clockwise.

Install Grinding Wheel

Insert and perfectly center the grinding wheel (C) in the dedicated seat on the ﬂange (5).

310-120

Preparing for Use

Reinstall Flange

Screw grinding wheel ﬂange knob (4) by turning clockwise until tightened

Reinstall Wheel Shield

Using a Phillips-head screwdriver, reinstall the grinding wheel guard (2) by replacing the three screws.

Checking the Assembly of the Grinding Wheel

Stand at the side of the grinding wheel.

Start the grinder by turning the switch to position “I”.

Visually make sure the grinding wheel does not oscillate sideways or crosswise, consequently causing abnormal vibrations.

If this should be the case, stop the machine immediately and check if the grinding wheel has been ﬁtted correctly. If necessary, replace the grinding wheel with another original one.

Always check a freshly ﬁtted grinding wheel at working speed for at least one minute before you start grinding, standing at a safe distance to the side of the grinder, making sure no one else approaches the machine.

Checking the Grinding Wheel Shape

With the machine turned oﬀ, check the grinding wheel (C) proﬁle using the measuring template (D); if necessary, dress the wheel to restore the correct proﬁle.

310-120

Preparing for Use

Grinding Wheel Dressing

Wear personal protection equipment. Start the grinder by turning the switch to position “I”. Proﬁle the grinding wheel with the dressing

brick (E), always working with extreme caution, holding it with two hands ﬁrmly and eﬀectively.

WARNING Contact with the grinding wheel while it spins at high speed may cause burning and abrasions.

Stop the grinder by turning the switch to position “O”.

Check if the grinding wheel (C) proﬁle is correct using the template (D). Continue to dress wheel until proﬁle matches template.

310-120

Placing the Chain in the Vise

WARNING

– Wear personal protective equipment. – All adjustments must be made with the motor switched oﬀ and the grinding wheel completely stopped.

– In the case of accidental impact or collision of the grinding wheel during the sharpening process, follow the

instructions given in the “CHOOSING AND INSTALLING THE GRINDING WHEEL – WARNINGS” section.

– To avoid overloading the motor excessively and to avoid damaging the chain cutters,

remove minimum amount of material with a tapping action and avoid holding the grinding wheel on the cutter continuously as this will cause the cutting edge to burn.

– Do not use cooling liquids during the sharpening process. – Clean the chain before sharpening it. – Check the cutters and ﬁnd the one with the most damage, you will want to start with this cutter. – Ensure chain is placed in vise as shown, cutter direction heading toward right.

Set the Vise Rotate Angle

Loosen the vise adjustment knob (12).

Rotate vise assembly (B) to desired angle. Rotate to le for right-hand cutters and right for le-hand cutters.

Tighten the vise adjustment knob (12).

310-120

Placing the Chain in the Vise

Setting the Chain Stop

Put the chain in the vise (10).

Slide a chain cutter up against the chain stop (8).

Move the grinding wheel onto the cutter to be sharpened by pulling the motor unit (A) downwards with the operating handle (1) .

Turn the chain-stop adjustment knob (7) to move the chain so that the cutter cutting edge skims the grinding wheel. The chain should run freely over the vise (10) throughout this procedure but without any clearance.

Raise the motor unit (A) with the operating handle (1).

Turn the chain-stop adjustment knob (7) clockwise, to slightly move the cutter to be sharpened further forwards.

310-120

Placing the Chain in the Vise

This forward movement corresponds to the quantity of material to be ground from the cutter. The more dull or damaged the cutters, the greater this forward movement should be. For cutters that are not too dull, simply grind a slight amount of material.

It is also important not to grind too much material in one pass. This could result in “burning” the cutter, reducing its hardness, and causing excessive burrs.

Turn depth adjustment knob (6) to adjust the cutter sharpening depth. The grinding wheel (C) should skim the bottom of the cutter vertically.

Once you have found the exact position of the cutter, tighten the vise clamp by depressing the red button and rotating the vise handle (9) clockwise. You are now ready to begin sharpening your chain.

310-120

Operating Instructions

Sharpening the Chain

– Wear personal protective equipment. – Sharpen all the cutters on the same side and then adjust the vise as explained in

the previous sections, and sharpen the cutters on the opposite side.

– When grinding is complete, ensure all cutter top plates equal length.

Make sure the vise handle (9) has been rotated clockwise and the vise jaws (10) are tight, and the cutter is blocked (8) properly.

Start the grinder by turning the switch to position “I”. Sharpen the cutter by lowering the motor

unit (A) with the operating handle (1).

A=B

310-120

Operating Instructions

Once you have sharpened the ﬁrst cutter, raise the motor unit (A) with the operating handle (1).

Loosen the vise handle (9) by depressing the red button and rotating the vise handle counter-clockwise.

Advance the chain forward to position the next cutter to be sharpened, assuring that the chain stop (8) is seated ﬁrmly against the rear of the cutter.

Clamp chain again with the vise handle (9) and sharpen the next cutter.

310-120

Operating Instructions

Setting the Depth Gauge

– Wear personal protective equipment. – Depth gauges can be set using a 1/4" (6.4 mm) wheel (sold separately)

or using a ﬂat ﬁle and depth gauge tool (sold separately).

Grinding Wheel Dressing for Setting the Depth Gauge

Fit the 1/4" (6.4 mm) thick grinding wheel (sold separately), following the instructions given on pages 14-15. DO NOT check the grinding wheel shape or dress the grinding wheel as shown on page 16.

Turn the vise so that the vise reference mark pointer (13) is on 0°.

Position the dressing brick (E) on the vise jaws (10) and against the chain stop (8). Hold the dressing brick ﬁrmly with one hand, keeping ﬁngers / hands clear of the grinding wheel.

Start the grinder by turning the switch to position “I”. Lower the motor unit (A) with the operating handle (1).

Grind the wheel against the dressing brick until you obtain a proﬁle like the one illustrated.

Note: when dressing the grinding wheel, use intermittent strokes to avoid burning the dressing stone.

WARNING Contact with the grinding wheel while it

spins at high speed may cause burning and abrasions.

310-120

Operating Instructions

Raise the motor unit (A) with the operating handle (1). Stop the grinder by turning the switch to position “O”

and remove the dressing brick (E) from the vise.

Put the chain in the vise jaws (10), with a cutter up against the chain stop (8).

With the motor unit (A) pulled down, turn the chain-stop adjustment knob (7) to move the chain so that the cutter’s depth gauge is below the grinding wheel (C).

With the motor unit (A) pulled down, adjust the grinding depth on the gauge by turning the depth adjustment knob (6).

Set the depth gauge following the instructions given in the “OPERATING INSTRUCTIONS, SHARPENING THE CHAIN” section on pages 20-21. For this type of sharpening procedure, there is no diﬀerence between the right and le cutters, therefore sharpen all the gauges one aer the other.

Check if the gauge depth is correct, using the template with the shape related to the type of chain used. Also consult the chain table on page 12, column D.

+ 53 hidden pages

Oregon Scientific 310-120 Original Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual