USG 1 English Guide to Using This Manual

English Contents

Guide to Using this Manual ...... 2 Dear Customer, Safety Precautions ...... 3 Thank you for choosing a quality Applications ...... 4 engineered STIHL product. Mounting the Tool ...... 4 Selecting the Grinding Wheel ...... 6 This machine has been built using Mounting the Grinding Wheel ...... 7 modern production techniques and Test Run ...... 8 comprehensive quality assurance. BA_SE_025_002_01_06.fm Dressing the Grinding Wheel ...... 8 Every effort has been made to ensure Scales ...... 8 your satisfaction and troublefree use Setup for Sharpening Saw Chain ..... 9 of the machine. Sharpening Procedure ...... 15 Please contact your dealer or our Lowering Depth Gauges ...... 17 sales company if you have any Setup for Sharpening queries concerning your machine. Hedge Trimmer Blades ...... 19 Sharpening Hedge Trimmer Blades ...... 24 Preparations for Sharpening Circular Saw Blade ...... 27 Sharpening Circular Saw Blade ...... 31 Maintenance Chart ...... 32 Minimize Wear and Hans Peter Stihl Avoid Damage ...... 33 Main Parts of Sharpener ...... 34 Specifications ...... 35 Special Accessories ...... 35 Maintenance and Repairs ...... 35

Printed on chlorine-free paper. paper. chlorine-free on Printed recycled. be can oils; paper vegetable inks contain Printing Certificate of Conformity ...... 36 Quality Certification ...... 36

USG 1 English Guide to Using this Manual

Pictograms In addition to the operating instructions, Equipment and features this manual may contain paragraphs All the pictograms attached to the This instruction manual refers to that require your special attention. Such machine are shown and explained in several models with different paragraphs are marked with the this manual. features. Components that are not symbols described below: installed in all models and related The operating and handling instructions Warning where there is a risk of an applications are marked with an are supported by illustrations. accident or personal injury or asterisk (*). Such components may Symbols in text serious damage to property. be available as special accessories from your STIHL dealer. The individual steps or procedures Caution where there is a risk of described in the manual may be marked damaging the machine or individual in different ways: components. Engineering improvements : Step or procedure without direct Note or hint which is not essential STIHL’s philosophy is to continually reference to an illustration. for using the machine, but may improve all of its products. As a result, improve the operator’s under- engineering changes and improvements Description of step or procedure that standing of the situation and result are made from time to time. If the refers directly to the illustration and in better use of the machine. operating characteristics or the contains item numbers that appear in appearance of your machine differ from Note or hint on correct procedure in the illustration. those described in this manual, please order to avoid damage to the Example: contact your STIHL dealer for environment. assistance. Loosen the screw (1) Therefore, we cannot be responsible for Lever (2) ... changes, modifications or improvements not covered in this manual.

2 USG English Safety Precautions

Additional safety Only use the grinding wheels supplied Wear heavy-duty, non- precautions have to be by STIHL or expressly approved by slip gloves, preferably observed when operating STIHL for use with your specific model. made of leather. the universal sharpener. Do not use any other grinding wheels since they will increase the risk of injury. It is important that you Switch on the motor only if its operating read and understand the voltage agrees with the voltage of your Before Starting Work owner’s manual before power supply. Check that your sharpener is properly using your tool for the first assembled and in good condition. Do time. Keep it in a safe Clothing and Equipment not operate your sharpener with a place for later reference. Wear proper protective clothing and damaged connecting cord or grinding Non-observance of the following safety equipment. wheel. precautions may cause serious or even The grinding dust produced when using fatal injury. this sharpener may cause health Always observe local safety regulations, problems. Always use a dust extractor Maintenance and Repairs standards and ordinances. or wear a suitable respirator. Always disconnect the unit from the power supply before carrying out any If you have never used this sharpener The sparks created during sharpening maintenance work. Only perform the model before: may cause eye injuries. adjustments and maintenance Have your dealer or a trained expert Always wear safety operations described in this manual. show you how to operate it properly and glasses. safely. All other maintenance and repairs should be carried out by your STIHL Minors should never be allowed to use dealer. an electric sharpener. Only use original STIHL replacement Keep children, bystanders and animals Clothing must be sturdy and snug-fitting, parts. well clear of the work area. but allow complete freedom of movement. In the interests of your own safety, never modify your electric sharpener in any Wear overalls – avoid loose-fitting way. jackets. Wear steel-toed safety boots with non-slip soles.

USG 3 English Applications Mounting the Tool

The STIHL USG sharpens all STIHL The unit may be mounted on a wall or Oilomatic saw chains, hedge trimmer workbench. blades and circular saw blades. If you mount the unit on a bench, note Optional swivelling tool rests are that the unit must overhang the bench by required for sharpening scratcher tooth at least 120 mm. chain, hedge trimmer blades and A If you use the special attachment for circular saw blades. hedge trimmer blades: If you mount the unit on a wall, note that a clearance of at least 450 mm is required between the wall and the unit for sharpening hedge trimmer blades. Recommendation: Mount the unit on a bench for such work. B 523BA045 KN

Secure the unit with screws A = For wall mounting, use three suitable 8 mm dia. screws (e.g. 8 mm x 100 mm wood screws, DIN 571-St), 8.4 mm dia. washers and suitable wall plugs (e.g. 10x50 mm plastic wall plugs) B = For bench mounting, use two suitable 8 mm dia. screws (e.g. 8 mm x 100 mm wood screws, DIN 571-St), 8.4 mm dia. washers

4 USG English

9 2 5 8 7

3 1 523BA046 KN 1 523BA048 KN

: Loosen the M5x10 screws (1) 4 : Screw the short thread of M10x145 and then lift and remove the guard stud (7) into the housing bore (8). plate (2). : Screw the M10 nut (9) onto the stud 6 as far as stop.

523BA047 KN 10

: Fit motor (3) on motor arm (4). The 11 switchbox (5) must face up. : Insert the four M5x22 pan head

screws (6) and tighten them down 523BA049 KN firmly in a diagonal pattern.

: Place the M10 nut (10) in the hexagon recess in the handle (11) and screw the handle firmly into position.

USG 5 English Selecting the Grinding Wheel

A/B C D 13 523BA091 KN A = Grinding wheel 5203 750 7010 (2.4 mm radius at one side) 14 B = Grinding wheel 5203 750 7013 12 (2.0 mm radius at one side) C = Grinding wheel 5203 750 7015 D = Diamond grinding wheel 5203 757 0901 523BA050 KN 523BA051 KN Grinding Application wheel : Place the eye shield (12) against the Work Light (Special Accessory) A . Circular saw blades guard and line up the holes. : Use a punch to pierce the casting . Hedge trimmer blades : Insert the M4x12 screws (13) in the skin. . Oilomatic chain, holes and fit the nuts (14). : Clean up the edges with a round file. pitch: 3/8“, 0.404“, 0.325“ : Tighten down the screws firmly. : Position lamp socket in opening B . Oilomatic chain, : Refit the guard plate. from outside and secure it with the pitch: screw ring. 1/4“, 3/8“ P, 3/8“ PMN C . Oilomatic chain, depth gauges DCarbide: . Oilomatic chain Rapid Duro Rapid Duro S . Carbide tipped circular saw blade

6 USG English Mounting the Grinding Wheel

2 6

1 523BA046 KN 4 5 7 Always check condition of grinding wheels by performing ringing test 3 before mounting. Never use damaged grinding wheels. : Loosen the M5x10 screws (1), then lift and remove the guard plate (2). A/B C D 523BA092 KN 523BA093 KN

: Fit the O-ring (3) in the groove in the Grinding Installed position spacer (4) and then push the spacer wheel onto the motor shaft (5) (spacer flange must face away from motor). A/B Radius facing motor (pointing to the right) : Fit the required grinding wheel (6). : Fit the thrust washer (7) on the shaft C Large outside diameter with its raised side facing away from facing motor (pointing to the motor. right)

D Either way round

USG 7 English Test Run Dressing the Scales Grinding Wheel

Every time you mount a grinding wheel: : Cordon off the general work area (danger zone).

: Run grinding wheel at maximum permissible speed for at least one minute. + A 1 C - + B - - +

2 3 523BA030 KN 523BA138 KN

The profile of the grinding wheel is Scale A subject to wear. : Loosen the nut (1), adjust angle, Switch off the motor. tighten down the nut firmly. : Use dressing gauge (special accessory) to check the profile of Scale B the grinding wheel. : Loosen the wingnut (2) on the : Set scale C on swivelling tool underside of the base, adjust to rest to "0". required value, tighten down the : Use dressing stone (special wingnut firmly. accessory) to correct the profile of the grinding wheel. Scale C : Loosen the wingnut (3), adjust angle, tighten down the wingnut firmly.

8 USG English Setup for Sharpening Saw Chain

Inspect the chain. Replace damaged or worn parts of the chain. Grind the new parts back to the shape and size of the other parts. : Select the grinding wheel – see 3 + instruction sheet 0457 716 0000. : Mount the grinding wheel – see A 1 "Mounting the Grinding Wheel". 4 - + : Test run the grinding wheel – see 1 - 4 "Test Run". C : Check profile of grinding wheel and 2 B dress if necessary – see "Dressing - + 2 the Grinding Wheel". 5 6 523BA054 KN 523BA094 KN

Scale C (attachment for Mounting Attachment for Saw circular saw blades) Chain : Loosen the wingnut (4), adjust : Engage pin (1) in hole (2) in base. angle, tighten down the wingnut : Insert bolt (3) in slot (4). firmly. : Fit the washer (5) and wingnut (6) and tighten down moderately.

USG 9 English

3 3 a 2 523BA135 KN 1 Determining Drive Link Gauge The clamp must be adjusted to suit the drive link gauge. 4 4 Drive link gauge: : Use slide caliper to measure dimension "a" or 523BA095 KN 523BA057 KN : note the digit (arrow) : Digit Drive link gauge in mm Adjusting the Clamp Take out the screws (3). 11.1 : Unscrew the clamping lever (1). : Take out the screws (4). 31.3 : Remove the thrust plate (2) and nut. 51.5 61.6 02.0

10 USG English

3 3 3 3 3 3

5 5 5

6 6 6 6 6 6

4 4 4 4 4 4 523BA097 KN 523BA097 KN 523BA096 KN

Chain with 1.1/1.3 mm drive link Chain with 1.5/1.6 mm drive link Chain with 2.0 mm drive link gauge gauge gauge : Fit the shim (5). : Remove the shim (5) (if fitted). : Remove the shim (5) (if fitted). : Fit the screws (3). : Fit the screws (3). : Fit the screws (3). : Install a 1.6 mm washer (6) : Install two 0.9 mm washers (6) : Install one 0.9 mm and one between the guide rail and clamping between the guide rail and clamping 1.6 mm washer (6) between the rail (at each end). rail (at each end). guide rail and clamping rail (at each : Fit the screws (4). : Fit the screws (4). end). : Fit the screws (4).

USG 11 English

2 3 1 523BA061 KN 523BA137 KN 523BA012 KN

: Fit the clamping lever. Finding the Master Cutter Fitting the Saw Chain The shortest cutter is used as the master : Release the clamping lever (1). cutter. : Place the chain in position, drive link The master cutter is sharpened first. All tangs (2) between the rails (3) – other cutters are then ground to the cutting edges must point to the left. same length as the master cutter. : Use a slide caliper to find the shortest cutter and mark it, e.g. with chalk.

12 USG English

A + - 5 - C - + 4 B 523BA077 KN

Setting the scales : Set the scales to the values specified in the instruction sheet 0457 716 0000. 523BA063 KN 523BA062 KN

: Pull the master cutter back against : The pivot pin (5) moves backward the stop (4). and forward so that the stop can be properly located against the back of the cutter. : To sharpen the left-hand row of cutters: Pull the stop in the direction of the arrow. : To sharpen the right-hand row of cutters: Push the stop in the other direction.

USG 13 English

1 2 3 523BA066 KN 523BA099 KN 523BA098 KN

Adjusting Lateral Stop : Move the stop (2) with the adjusting : Tighten down the knurled nut on the screw (3) so that the master cutter's adjusting screw. : Back off the travel limiting screw (1). side plate butts against the grinding : Use the handle to bring the grinding wheel. wheel down to the chain. : Clamp the chain firmly in position.

14 USG English Sharpening Procedure

Wear safety glasses.

Sharpening the Master Cutter : Switch on the motor. 1 : Bring motor arm slowly downward. Check sharpening process. Do not remove too much material. 3 : If necessary, switch off motor and readjust. : Sharpen the side plate by applying the wheel several times – do not 2 sharpen in a single pass. : When result is satisfactory, check the grinding depth. 523BA101 KN 523BA100 KN

Adjusting Grinding Depth : Screw the travel limiting screw (1) down as far as the stop lug (2). : Swing the motor arm down until grinding wheel touches the gullet of : Tighten down the knurled nut (3) the cutter – hold it in this position. firmly. : Swing the motor arm up again.

USG 15 English

1 523BA070 KN

: Check angle with a filing gauge.

If side plate angle is too obtuse (wide): : Use travel limiting screw to set motor arm lower. Avoid touching the drive links or tie straps with the grinding wheel. This 523BA071 KN 523BA022 KN could cause the chain to break. The travel limiting screw must now butt Sharpening Row of Cutters against the stop lug and the side plate If side plate angle is too acute (narrow): Use the setting for the master cutter to angle (1) should be as specified. : Use travel limiting screw to set sharpen all the other cutters in the row. motor arm higher. : Release clamping lever. Pull the Chain type Angle in : Lock the adjusting and travel chain to the left until the stop is degrees limiting screws with their knurled behind the next cutter but one. Rapid-Standard 85 nuts. Rapid-Micro 85 Rapid-Super 60 Picco-Micro 85 Picco-Micro-Mini 85 Rapid-Duro 65 RCX, RMX, PMX 80

16 USG English Lowering Depth Gauges

Sharpening the Second Row of Checking Depth Gauge Setting Cutters : Select the filing gauge (special : Set scale B to the same sharpening accessory) that matches the chain angle on the other side of the chain. pitch. : Set scale C to the specified angle on the other side of the chain. Chain pitch Filing gauge : Move the stop with the pivot pin – inch mm Part No. the stop must locate properly 1/ 6.35 1110 893 4000 against the back of the cutter. 4 3/ PMN 9.32 0000 893 4000 : 8 After sharpening first cutter in the 3 second row, check its length against /8 P 9.32 1110 893 4000 that of the other row and adjust the 0.325 8.25 1110 893 4000 3 stop if necessary. /8 9.32 1110 893 4000 : Now sharpen the second row of 0.404 10.26 1106 893 4000 cutters. 523BA072 KN

: Pull the chain to the right until the back of the cutter butts against the stop. : Clamp the chain in position. : Sharpen the side plate. : Repeat procedure until all side 564BA017 KN plates on one side have been sharpened. : Place the filing gauge on the saw chain. If the depth gauge projects beyond the filing gauge it has to be lowered.

USG 17 English

If the depth gauges have to be lowered: : Select the correct grinding wheel – see instruction sheet 0457 716 0000 : Mount the grinding wheel – see 1 "Mounting the Grinding Wheel". : Test run the grinding wheel – see "Test Run". 1 3 : Check profile of grinding wheel and 2 dress if necessary – see "Dressing the Grinding Wheel". 2 Setting the Scales

+ 523BA102 KN 523BA101 KN A + - - C Adjusting the Lateral Stop Adjusting Grinding Wheel - + : Swing the motor arm down. : Swing the motor arm down until the B : grinding wheel touches the depth

523BA077 KN Slide the chain along the guide rail until the profile (1) of the grinding gauge. wheel is centered above the depth : Screw home the travel limiting : Set scale A to 40° gauge. screw (1) until it butts against the : Set scales B and C to 0° : Clamp the chain in position. stop lug (2). : : Turn the adjusting screw (2) until the Put on safety glasses. back of the cutter butts against the : Switch on the motor. stop. : Carefully bring the motor arm down as far as the stop.

18 USG English Setup for Sharpening Hedge Trimmer Blades

: Select the correct grinding wheel – see "Selecting Grinding Wheel". : Mount the grinding wheel – see 3 "Mounting the Grinding Wheel". : Test run the grinding wheel – see "Test Run". : Check profile of grinding wheel and

523BA139 KN dress if necessary – see "Dressing 4 the Grinding Wheel". : 5 Tighten down the knurled nut (3) firmly. : Use this setting to lower all the other depth gauges. The kickback tendency of the saw is increased if the depth gauges are too low.

523BA103 KN On PM1 and RM2 chains the rear hump of the tie strap (with service : Switch off the motor. mark) is lowered at the same time : Place the filing gauge (5) on the as the depth gauge. The other parts chain. of the triple-humped tie strap must : If the depth gauge (4) still projects not be ground because this may above the filing gauge, make increase the kickback tendency of appropriate adjustment with the the saw. travel limiting screw (1). : Remove the filing gauge (5). : Switch on the motor. : Carefully bring the motor arm down. : Switch off the motor. : Repeat the procedure until the depth gauge is level with the filing gauge.

USG 19 English

A + - - C - + 2 B 3 523BA077 KN 3 1 4 Setting the Scales

2 HL 45, HL 75, 5 HLR 85, HS 61 HS 75, 80, 85 HL 100, 1 6 HS 246 HS 45 523BA054 KN Scale A - 10° - 6° 523BA104 KN Scale B 00 Scale C Mounting the Attachment for + 45° + 55° Principle of Clamp left Hedge Trimmer Blades : Turn the star knob (1) to open and Scale C : Engage pin (1) in hole (2) in base. - 45° - 55° close the clamp. right : Insert bolt (3) in slot (4). The stop (2) is automatically : Fit the washer (5) and wingnut (6) engaged and disengaged by the and tighten down moderately. spring (3).

20 USG English

3 6 2 523BA107 KN

1 5 Fitting double-sided cutting blade : Fit the cutting blade (4) in position so that the cutting edges point to the rear. 523BA108 KN 523BA106 KN

Fitting Cutting Blade Fitting one-sided cutting blade : Turn the star knob (1) until the : Fit the angle iron rail (5). spring (2) is in the positon shown. : Fit the cutting blade (6) in position : The clamp is open in this position – so that the cutting edges point to the the cutting blade may be fitted. rear.

USG 21 English

5 4 2 1 6

3 7 523BA112 KN 523BA111 KN 523BA110 KN

Adjusting the Stop : Swing the motor arm up again. : Swing the stop (4) into position by hand. Adjusting the lateral stop : Turn the star knob (1) clockwise until the spring is in the position : Turn the adjusting screw (5) until the : Swing the motor arm down until the shown – the clamp is closed. stop butts against the tooth (6). grinding wheel is above the gullet of : the tooth – hold it in this position. If range of adjustment is insufficient, loosen the screws (7) on the stop. : Pull the cutting blade (1) to the left : until the first tooth (2) in the row Move the stop (4) until it butts butts against the grinding wheel. against the tooth and then tighten down the screws (7) firmly.

22 USG English

3 3

2 523BA101 KN 523BA113 KN 523BA109 KN

If stop is now correctly positioned: Adjusting sharpening depth : Screw the travel limiting screw (1) : Continue turning the star knob (3) down as far as the stop lug (2). : Swing the motor arm down until the clockwise until the stop swings grinding wheel touches the gullet of : Tighten down the knurled nut (3) back. the tooth – hold it in this position. firmly.

USG 23 English Sharpening Hedge Trimmer Blades

Wear safety glasses to protect your eyes. Observe the following points when sharpening: : The cutting blade must be correctly clamped in position and the stop 3 must swing back out of the way. 2 : Bring the motor arm slowly downward. Check sharpening process. Do not remove too much 1 1 material. If necessary, switch off the motor and readjust. : Sharpen the cutting edges by applying the wheel several times – do not sharpen in a single pass. 523BA114 KN 523BA115 KN

Sharpening Row of Teeth : Turn the star knob (1) clockwise until the stop swings back – the : Switch on the motor. cutting blade is now clamped in : Sharpen the first tooth. position. : Turn the star knob (1) counter- : Sharpen the tooth. clockwise to loosen the clamp. : Move cutting blade (2) one tooth to Repeat the above procedure until all the the left. teeth in the row have been sharpened. : Continue turning the star knob (1) Now follow the separate descriptions for until the stop swings forward sharpening one-sided and double-sided automatically. The left tooth flank cutting blades. must butt against the stop.

24 USG English

180¡ 180¡ 523BA116 KN 523BA131 KN 523BA117 KN

Sharpening Double-Sided Hedge : Take the cutting blade out of the : Take the cutting blade out of the Trimmer Blades clamp and turn it 180° lengthwise – clamp and turn it over (180°) – cutting edges point to the rear. cutting edges point forwards. : Sharpen the first row of teeth – : : cutting edges point to the rear. Sharpen the teeth. Set scale C to opposite angle. : Sharpen the teeth.

USG 25 English

180¡ 523BA120 KN 180¡ : Take the cutting blade out of the clamp and turn it over (180°) – cutting edges point forwards. : Set scale C to opposite angle. : Sharpen the teeth. 523BA119 KN 523BA118 KN

: Take the cutting blade out of the Sharpening One-Sided Hedge clamp and turn it 180° lengthwise – Trimmer Blades cutting edges point forwards. : Sharpen the first row of teeth – : Sharpen the teeth. cutting edges point to the rear.

26 USG English Preparations for Sharpening Circular Saw Blade

Check the blade. Always perfom a ringing test. Do not continue to use warped or a cracked blades since they may b 1 shatter. c : Select the correct grinding wheel – see "Selecting the Grinding Wheel". : Mount the grinding wheel – see 523BA122 KN "Mounting the Grinding Wheel". 1 : Test run the grinding wheel – see Clamping the Circular Saw Blade "Test Run". : Use the tapped hole specified for : Check profile of grinding wheel and the saw blade diameter: 0 dress if necessary – see "Dressing a = for 200 mm blade the Grinding Wheel". b = for 225 mm blade 2 c = for 250 mm blade

523BA121 KN If necessary, change the position of the shoulder stud (1). Mounting the Special Attachment : Fit the attachment (1) so that the arrow points to "0" on the scale. : Tighten down the wingnut (2) firmly.

USG 27 English

1 5

5 6 2 2 4 1 523BA123 KN 523BA125 KN

: Position the saw blade (2) on the 3 There are saw blades with shoulder stud (1) so that the cutting square ground teeth (5) edges point to the left (counter- clockwise). (scale C = 0) and : Fit the locator (4) over the shoulder 4 bevel ground teeth (6) stud and push it home – this centers the saw blade. :

Tighten down the clamp lever (5) 523BA124 KN In the case of bevel ground teeth, firmly. mark the teeth that have the same Setting the Scales sharpening angle (every second The saw blade must now locate against tooth). Marking them helps avoid The settings depend on the type of saw the retaining plate free from play, but it accidentally sharpening a tooth on blade: must still be possible to turn the blade by the other side of the blade. hand. Chisel tooth, standard (1) Chisel tooth, special (2) Scratcher tooth (3) Carbide tipped blade (4)

28 USG English

+ 3 + 1 A - - C 1 2 523BA127 KN 523BA126 KN 3 : Set angles as specified in the Adjusting the Stop following table. Adjusting the lateral stop : Swing the motor arm down. 2 Type of tooth Scale Scale : Use the adjusting screw (1) to move A C the stop (2) so that the side plate of Chisel tooth, the tooth to be sharpened butts standard +5°...+15°1) +15°/ -15° against the grinding wheel – make sure the stop locates firmly against 523BA101 KN Chisel tooth, the back of one tooth. Adjusting sharpening depth special +5°...+15°1) +15°/ -15° : The stop can be moved in the slot (3) to suit the saw blade. : Swing the motor arm down until the Scratcher 0° 0° required sharpening depth is tooth2) reached – see "Sharpening profiles". Carbide 7° +5°/-5° : Screw home the travel limiting tipped blade screw (1) until it butts against the stop lug (2). : Tighten down the knurled nut (3) 1) Depending on type of wood, set firmly. between +5° (for hardwood) and +15° (for soft wood) 2) Scratcher tooth saw blade with 80 teeth cannot be sharpened with the USG

USG 29 English

Sharpening Limits 1 Chisel tooth: – Sharpening depth: max. 5 mm a – Top plate must not be sharpened 2 back to more than half its length. – Tooth set must not be less than

1mm. 523BA136 KN

3 Scratcher tooth Checking Tooth Set – Sharpening depth: no more than After sharpening chisel tooth saw diameter of blade body. blades: : 4 – Do not reduce tooth height by more Use saw set (special accessory) to than 1/3. check tooth set (a) and correct if – Do not touch back of next tooth with necessary. grinding wheel. 523BA128 KN

Sharpening profiles Carbide tipped blade Chisel tooth, standard (1) – Sharpen carbide tip only – do not Chisel tooth, special (2) sharpen material of blade body. Scratcher tooth (3) Carbide tipped blade (4)

30 USG English Sharpening Circular Saw Blade

Sharpening Remaining Teeth The sharpening process now depends 2 3 on how the teeth are ground. Saw blade without bevel ground teeth (scale C = 0°): 1 : Rotate the saw blade counter- clockwise to the next tooth. 523BA129 KN : Sharpen all teeth with the same Wear safety glasses and work setting. gloves. Sharpening the First Tooth Saw blade with bevel ground teeth: : : Push the saw blade clockwise Rotate the saw blade counter- against the stop (1) with your left clockwise to the next tooth but hand. one. : : With the motor running, carefully Sharpen all the teeth in one row that swing the motor arm down. have the same sharpening angle (every second tooth). : Only remove sufficient material to : obtain a "clean" cutting edge. If Then set scale C to the angle for the necessary, use adjusting screw (2) opposite row of teeth – all other to correct position of stop. settings are left unchanged, do not turn the saw blade over. : Now sharpen all the teeth in the second row.

USG 31 English Maintenance Chart

Please note that the following maintenance intervals apply for normal operating conditions. If your daily working time is longer than normal or conditions are difficult, shorten the specified intervals accordingly. before before starting work finishing after work or daily weekly monthly problem if damaged if as required Visual inspection condition) X Complete machine Clean X Check X Machine mounting Retighten X Check operation X Switch Replace 1) XX Check X Power supply cord Replace 1) XX Check (wear) X Check profile X Grinding wheel Dress XX Replace XX Cooling air inlets Clean X Accessible screws and nuts Retighten X Check X Shield Replace XX Check X Clamp and guide rail Replace X Check X Stop and lock Replace X

1) Have work performed by qualified electrician

32 USG English Minimize Wear and Avoid Damage

Observing the instructions in this manual Maintenance Work Parts Subject to Wear and Tear helps reduce the risk of unnecessary All the operations described in the Some parts of the unit are subject to wear and damage to the unit. “Maintenance Chart” must be performed normal wear and tear even during The unit must be operated, maintained on a regular basis. If these maintenance regular operation in accordance with and stored with the due care and operations cannot be performed by the instructions and, depending on the type attention described in this owner’s owner, they should be performed by an and duration of use, have to be replaced manual. authorized STIHL servicing dealer. in good time. Among other parts, this includes: The user is responsible for all damage If these operations are not carried out caused by non-observance of the safety as specified, the user assumes – Grinding wheels precautions, operating and maintenance responsibility for any damage that may – Carbon brushes instructions in this manual. This includes occur. in particular: – Transparent shield Among other things, this includes: – Clamping lever and thrust pad – Alterations or modifications to the – Damage to the unit due to neglect product not approved by STIHL. – Clamping and guide rails or deficient maintenance. – Using attachments or sharpening –Stop – Corrosion and other consequential tools not approved by STIHL. damage resulting from improper – Using the product for purposes for storage. which it was not designed. – Damage and consequential – Consequential damage caused by damage resulting from the use of continuing to use the product with parts other than original STIHL defective components. replacement parts. – Damage resulting from maintenance or repair work not performed by authorized STIHL servicing dealers.

USG 33 English Main Parts of Sharpener

4 4 3 2 1 2 5 1 5 6 7 523BA132 KN

4 3 10 Attachment for 6 8 hedge trimmer blades 11 9 1 Star knob 1 2 2 Spring 3 Stop 35 4 Adjusting screw 5 Clamp 6 Angle iron rail 523BA134 KN 523BA133 KN

USG with attachment for Attachment for Oilomatic saw chain circular saw blades 1 Motor 1 Locator 2 Switchbox 2 Shoulder stud 3 Attachment 3 Clamping lever 4 Motor arm 4 Adjusting screw 5 Clamping lever 5 Stop 6 Thrust plate 7 Travel limiting screw 8 Stop 9 Adjusting screw 10 Grinding wheel 11 Stop lug

34 USG English Specifications Special Accessories Maintenance and Repairs

Motor Work light The user of this unit should carry out only the maintenance operations Foot-operated clamping attachment Type: Single-phase described in this manual. Other repair AC, squirrel-cage Diamond dressing attachment work may be performed only by an motor Filing gauge authorized STIHL dealer. Operating Warranty claims following repairs can be voltage: 230 V Diamond grinding wheel for carbide accepted only if the repair has been Frequency: 50 Hz tipped saw chain and carbide tipped circular saw blades performed by an authorized STIHL Rated current: 1.3 A dealer using original STIHL replacement Power rating: 0.18 kW Attachment (tool rest) for scratcher tooth parts. chain Motor speed: 2,800 RPM Original STlHL parts can be identified by Equivalent sound Attachment (tool rest) for hedge trimmer the STIHL part number, the STIHl pressure level 1) blades logo and the STlHL parts symbol (. Lpeq 75 dB (A) Attachment (tool rest) for circular saw The symbol may appear alone on small blades parts. Saw set for checking and correcting tooth set

Contact your STIHL dealer for the latest information on these and other special accessories.

1) according to EN ISO 11204, measured at operator’s ear while sharpening a saw chain

USG 35 English Certificate of Conformity Quality Certification

Andreas Stihl AG & Co. KG Technical documents deposited at: Badstr. 115 Andreas Stihl AG & Co. KG 71336 Waiblingen Product Licensing certify that the new machine described below Done at Waiblingen, September 1, 2003 Category: Universal Andreas Stihl AG & Co. KG sharpener Make: STIHL Model: USG Serial identification: 5203 conforms to the specifications of Steinhauser Directives 73/23/EEC, 98/37/EG and Director 89/336/EEC. Group Product Management/ The product has been developed and Engineering Services 000BA026 manufactured in compliance with the following standards: All STIHL products comply with the EN 60335-1, EN 55014-1, EN 55014-2, highest quality standards. EN 61000-3-2, EN 61000-3-3 and An independent organization has EN 60204-1 certified that all products manufactured by STIHL meet the strict requirements of the ISO 9001 standard for quality management systems in terms of product development, materials purchasing, production, assembly, documentation and customer service.

36 USG