ICS 680GC Service Manual

680GC

SERVICE MANUAL

i

680GC SERVICE MANUAL

TABLE OF CONTENTS

SECTION SECTION TITLE PAGE NUMBER

SERVICE MANUAL USE 2

1 TOOLS 3

2 SAW SPECIFICATIONS

4

3 SERIAL NUMBER LOCATION 5

4 SPARE PARTS DIAGRAM (TORQUE AND LOCTITE

®

) 6

5 AIR INTAKE 25

6 SPARK PLUG 27

7 CLUTCH & RIM SPROCKET 29

8 STARTER SYSTEM 33

9 WALLWALKER

®

38

10 CYLINDER COVER 40

11 MUFFLER 43

12 CARBURETOR 47

13 CYLINDER & PISTON 49

14 WATER HOSE & CAP 58

15 IGNITION COIL 60

16 F LY WH E EL 62

17 BOTTOM GUARD 64

18 FRONT HANDLE 65

19 FUEL TANK 66

20 CR ANKCASE 67

21 BAR STUDS & BAR PAD 75

22 CHAIN TENSIONER 76

23 CARBURETOR TUNING 77

24 IDLE SPEED ADJUSTMENT 80

25 TROUBLESHOOTING DIAGRAMS 81

26 TROUBLESHOOTING: FUEL SYSTEM LEAKS 83

27 TROUBLESHOOTING: CRANKCASE LEAKS 85

APPENDIX

1. SPARK PLUG REFERENCE GUIDE 86

1

SERVICE MANUAL USE

Service Manual Use

This manual contains all the technical information necessary for carrying out repairs on the 680GC saw. For safe, efficient work, it is of prime importance that the values indicated be adhered to. Routine periodic maintenance is covered in the operator’s manual included with each saw.

General Shop Rules

• Always use the right tools for the job, otherwise components may be damaged.

• Use a plastic dead blow mallet to separate parts attached solidly to each other.

• Mark mating parts as a reassembly reference.

• Keep component parts together as a group. Assemble screws and nuts into appropriate subgroups.

680GC SERVICE MANUAL

• When reassembling, clean all parts carefully, lubricate moving parts and replace all oil seals, o-rings, gaskets, washers and self-locking nuts.

• For best results, use only original ICS

®

replacement parts.

General Recommendations

• Some procedures in this manual require the use of special tools. A complete tool kit for the 680GC is available from ICS®.

• Detailed carburetor maintenance and overhaul information is available in Walbro’s Diaphragm Carburetor Service Manual. Walbro can be contacted at http:\\www.walbro.com or by calling 1.989.872.2131.

2

680GC SERVICE MANUAL

1. TOOLS

680GC Service Tool Kit - P/N 71700

1

6

11

7

12

8

9

1413

16

Key # Part No. Description

Above 71700 Gas Saw Service Tool Kit, includes all items shown above

1 71521 Scrench 13-19 mm

2 71541 Pressure Gauge Bulb

3 71542 Coil/Flywheel Timing Shim

4 71543 Cylinder Assembly Clamps & Piston Stop

5 71544 Manifold Assembly Tool

6 71546 Shock Absorber Tool

7 71547 Spark Tester

8 71548 Flywheel Disassembly Tool

9 71550 Limiter Cap Puller

10 71565 Electronic Tachometer

11 71569 Induction Seal Flange with Screws

12 71570 Exhaust Seal Flange with Screws

13 71573 Tuning Screwdriver

14 73463 Main Bearing Spacing Tool

15 73425 Fuel Tank Pressure Cap

16 73462 Main Bearing Driver Tool

Items below are not included in P/N 71700, Gas Saw Service Tool Kit, but can be purchased separately

Not Shown 71734 Gasket Set

Not Shown 70249 14T Bar Nose Sprocket Repair Kit

Not Shown 71625 Carburetor Tuning Kit

Not Shown 505882 2-Stroke Oil, 25:1 Mix, 5.2 oz (158 ml) (6-Pack)

Not Shown 505883 2-Stroke Oil, 25:1 Mix, 5.2 oz (158 ml) (24-Pack)

5432

10

15

3

2. SPECIFICATIONS

Engine Type 2-stroke Single Cylinder Air Cooled

Displacement 4.7 cu-in (76.5 cc)

Horsepower 5 hp (3.7 kW) @ 9,500 rpm

680GC SERVICE MANUAL

Specifications

Torque 36.3 in-lbs (4.1 Nm) @ 6,500 rpm

Engine Speed

2,800-3,200 rpm (idle)

21 lbs (9.5 kg) without guidebar and

11,500 +/- 500 rpm (max)

Weight

diamond chain

18 inches (46cm) length

Dimensions

11.5 inches (29cm) height 10 inches (25cm) width

Air Filter Water resistant polyester

Carburetor Walbro WJ122B

Starter Dust and water resistant

Special water resistant electronic

Ignition

ignition

Clutch Centrifugal, three shoe, single spring

Fuel ratio 25:1 (4%) gasoline-to-oil

Fuel Capacity 0.23 gal (.88 liter)

Water Supply Minimum 20 psi (1.5 bar)

Water Flow Minimum: 2 gpm (8 lpm)

Noise Level 101 dB at 3 ft (1m)

Vibration Level

Engine Break-in Period

Spark Plug

4

7.2 m/s

8.5 m/s

2

(front handle)

2

(rear handle)

One tank, without cutting, cycling

throttle

NGK BPMR8Y

Electrode gap .020 in (0.5 mm)

680GC SERVICE MANUAL

3 This section shows the two locations of the serial number.

3. SERIAL # LOCATION

5

4. SPARE PARTS DIAGRAM

680GC SERVICE MANUAL

4 This section covers torque, Loctite®, and lubrication requirements of the

individual components.

STARTER ASSEMBLY

For saws with serial number

2

3

1

4

10

KEY DESCRIPTION

1

SCREW 4.0 35 X 73230

2

STARTER ROPE HANDLE 530208

3

STARTER ROPE 73904

4

STARTER COIL SPRING & HOUSING 531103

5

STARTER CASE PLATE 71451

6

SCREW 505380

7

STARTER ROPE PULLEY 528661

8

STARTER PULLEY WASHER 73905

9

STARTER PULLEY SCREW 5.9 52 X 73907

10

11

12

13

STARTER COVER ASSEMBLY 528637

STARTER ASSEMBLY WASHER 530367

SPRING HOUSING WASHER 532026

STARTER ASSEMBLY CAP 508853

12

5

6

7

12

6

11

9

13

8

TORQUE LOCTITE

Nm in‑lbs. 242

starting 967 &

977.

®

PART NUMBER

6

680GC SERVICE MANUAL

FLYWHEEL & STARTER PAWL ASSEMBLY

4. SPARE PARTS DIAGRAM

For saws with serial

numbers starting

967.

(see page 8 for serial number starting 977)

KEY DESCRIPTION

31 FLYWHEEL SHROUD 531109

45 FLYWHEEL ASSEMBLY 6.9 61 528651

48 NUT 29.3 260 73891

51 WASHER 73911

57 WASHER 73912

71 STARTER PAWL ASSEMBLY 509163

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

7

4. SPARE PARTS DIAGRAM

FLYWHEEL & STARTER PAWL ASSEMBLY

1

680GC SERVICE MANUAL

2

For saws with serial

numbers starting 977.

(see page 7 for serial number

starting 967)

3

KEY DESCRIPTION

1 FLYWHEEL SHROUD 531109

2 FLYWHEEL ASSEMBLY KIT 29.3 260 545963

3 STARTER PAWL ASSEMBLY 509163

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

8

680GC SERVICE MANUAL

For saws with serial numbers starting 967.

(see page 10 for serial number starting 977)

4. SPARE PARTS DIAGRAM

CYLINDER AND INTAKE ASSEMBLY

KEY DESCRIPTION

1 INTAKE MANIFOLD CLAMP 73867

2 INTAKE MANIFOLD 73868

3 WRIST PIN NEEDLE BEARING 73869

4 COMPLETE PISTON/CYLINDER ASSEMBLY 71413

5 CYLINDER BASE GASKET ASSEMBLY 71412

6 SPARK PLUG 27. 5 243 514770

11 CYLINDER BOLT 10.7 95 X 73874

13 CARBURETOR PULSE TUBE 73898

16 CARBURETOR, WALBRO WJ-122B 528628

17 INTAKE MANIFOLD FLANGE SCREW 4.0 35 X 73901

19 CARBURETOR SUPPORT BRACKET 73895

20 DECOMPRESSION VALVE 12.8 113 71642

21 INTAKE MANIFOLD FLANGE 73947

22 INTAKE MANIFOLD 71735

23 CARBURETOR SPRING 73888

24 WASHER 73897

25 SCREW & WASHER 505469

26 SCREW 73866

27 SCREW GUIDE 517547

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

9

680GC SERVICE MANUAL4. SPARE PARTS DIAGRAM

CYLINDER AND INTAKE ASSEMBLY

For saws with serial numbers starting 977.

(see page 9 for serial number starting 967)

14

15

3

5

1

6

7

42

KEY DESCRIPTION

9

8

12

10

11

13

17

18

TORQUE LOCTITE

Nm in‑lbs. 242

16

®

PART NUMBER

1 SCREW & WASHER 505469

2 WASHER 73897

3 INTAKE MANIFOLD 71735

4 INTAKE MANIFOLD FLANGE SCREW 4.0 35 X 73901

5 INTAKE MANIFOLD FLANGE 73947

6 CARBURETOR SPRING 73888

7 CARBURETOR PULSE TUBE 545877

8 CARBURETOR, WALBRO WJ-122B 528628

9 SCREW 4.0 35 X 73866

10 CARBURETOR SUPPORT BRACKET 73895

11 SCREW GUIDE 517547

12 INTAKE MANIFOLD 73868

13 INTAKE MANIFOLD CLAMP 73867

14 SPARK PLUG 2 7.8 243 X 514770

15 CYLINDER BOLT 10.7 95 X 73874

16 COMPLETE PISTON/CYLINDER ASSEMBLY 548084

17 GASKET, BASE 545874

18 WRIST PIN NEEDLE BEARING 73869

10

680GC SERVICE MANUAL4. SPARE PARTS DIAGRAM

MUFFLER ASSEMBLY

For saws with serial numbers starting 967.

(see page 12 for serial number starting 977)

KEY DESCRIPTION

7 CYLINDER TO MUFFLER GASKET 73881

9 SERRATED WASHER 73327

10 MUFFLER ASSEMBLY 71411

12 MUFFLER MOUNTING SCREW 9.8 87 73883

14 MUFFLER SUPPORT BRACKET 73884

15 MUFFLER SUPPORT BRACKET SCREW 8.8 78 73885

24 WASHER 73897

26 SCREW 4.0 35 X 73866

28 MUFFLER DEFLECTOR 71481

29 SCREW 4.0 35 X 71482

11

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

680GC SERVICE MANUAL

For saws with serial numbers starting 977.

(see page 11 for serial number starting 967)

4. SPARE PARTS DIAGRAM

MUFFLER ASSEMBLY

3

4

KEY DESCRIPTION

1 CYLINDER TO MUFFLER GASKET 545875

2 MUFFLER ASSEMBLY 545872

3 SCREW & WASHER 9.8 87 505469

4 SCREW 4.0 35 X 73866

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

12

680GC SERVICE MANUAL

For saws with serial number starting 967 & 977

4. SPARE PARTS DIAGRAM

CRANKSHAFT ASSEMBLY

KEY DESCRIPTION

1 CRANKSHAFT SEAL FLYWHEEL SIDE 73877

2 CRANKSHAFT BEARING 73209

3 CRANKSHAFT FLYWHEEL WOODRUFF KEY 73878

4 CRANKSHAFT ASSEMBLY 71410

5 WRIST PIN NEEDLE BEARING 73869

6 CRANKSHAFT SEAL CLUTCH SIDE 73289

7 CRANKSHAFT BUSHING 71452

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

13

4. SPARE PARTS DIAGRAM

For saws with serial number starting 967 & 977

680GC SERVICE MANUAL

CL UTC H A SS EM B LY

KEY DESCRIPTION

1 OUTER CRANKCASE SEAL, CLUTCH SIDE 73931

2 OUTER CRANKCASE SEAL BODY 73949

3 BOLT 2.9 26 73940

4 WASHER 73285

5 CLUTCH SPACER WASHER 73945

6 8T RIM SPROCKET KIT 70949

7 CLUTCH NEEDLE BEARING 73939

8 CLUTCH DRUM ASSEMBLY 71520

9 CLUTCH SPACER WASHER, INSIDE 73941

10 CLUTCH ASSEMBLY 33.3 295 71419

11 CLUTCH SPRING 73943

14

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

680GC SERVICE MANUAL

For saws with serial numbers starting 967.

(see page 16 for serial number starting 977)

4. SPARE PARTS DIAGRAM

CRANKCASE ASSEMBLY

KEY DESCRIPTION

1 FUEL LINE GROMMET, CRANKCASE 73390

2 & 5 CRANKCASE ASSEMBLY, RIGHT & LEFT 528653

3 CRANKCASE DOWEL PIN 73281

4 CRANKSHAFT BEARING 73209

7 CHOKE LEVER SPLIT PIN 73927

8 CRANKCASE GASKET 73934

9 CRANKCASE BOLT 7.8 69 X 73930

10 WASHER 73897

11 CHAIN GUARD 528657

12 BAR MOUNT PAD SPACER 71740

13 COVER GUARD MOUNTING BOLT 7. 8 69 X 73397

14 SCREW 4.9 43 X 73379

15 BAR MOUNTING STUD 11. 8 104 73933

16 SCREW 7.8 69 73284

17 BAR MOUNT PAD COVER PLATE 71738

18 PREMIUM TENSIONER KIT 73935

19 TENSIONER SCREW RETAINER 73936

20 CHOKE LEVER 530469

21 CRANKCASE GROMMET, RIGHT SIDE 531107

22 CHOKE LEVER BUSHING 73955

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

15

4. SPARE PARTS DIAGRAM

For saws with serial numbers starting 977.

(see page 15 for serial number starting 967)

680GC SERVICE MANUAL

CRANKCASE ASSEMBLY

4

7

5

19

21

KEY DESCRIPTION

11

14

4

20

9

8

10

9

12

TORQUE LOCTITE

Nm in‑lbs. 242

17

16

18

15

13

®

PART NUMBER

1 FUEL LINE GROMMET, CRANKCASE 73390

2 CRANKCASE ASSEMBLY, RIGHT & LEFT 545967

3 CRANKCASE DOWEL PIN 73281

4 CRANKSHAFT BEARING 545969

5 CHOKE LEVER SPLIT PIN 73927

6 O-RING 71748

7 CRANKCASE GASKET 545968

8 CRANKCASE BOLT 7.8 69 X 73930

9 WASHER 73897

10 CHAIN GUARD 528657

11 BAR MOUNT PAD SPACER 71740

12 COVER GUARD MOUNTING BOLT 7. 8 69 X 73397

13 SCREW 4.9 43 X 73379

14 BAR MOUNTING STUD 11. 8 104 73933

15 SCREW 7.8 69 73284

16 BAR MOUNT PAD COVER PLATE 71738

17 PREMIUM TENSIONER KIT 73935

18 TENSIONER SCREW RETAINER 73936

19 CHOKE LEVER 530469

20 CRANKCASE GROMMET, RIGHT SIDE 531107

21 CHOKE LEVER BUSHING 73955

16

680GC SERVICE MANUAL

For saws with serial numbers starting 967.

(see page 18 for serial number starting 977)

4. SPARE PARTS DIAGRAM

FUEL TANK AND HANDLE ASSEMBLY

KEY DESCRIPTION

1 FUEL TANK ASSEMBLY 528655

2 REAR HANDLE HALF 531105

3 SCREW 73976

4 THROTTLE LEVER 530479

5 FUEL CAP ASSEMBLY, WITH OUTER SEAL RING 530471

6 FUEL CAP O-RING 73448

7 FUEL FILTER 73459

8 TRIGGER LOCKOUT LEVER 532028

9 TRIGGER LOCKOUT LEVER SPRING 73988

10 WASHER 73897

11 SCREW 73982

12 SHOCK ABSORBER 73980

13 CLIP, FUEL FILTER 71588

14 FUEL LINE 73375

15 SHOCK ABSORBER, REAR HANDLE 71745

16 BUMPER, SHOCK ABSORBER, FUEL TANK TOP 73270

17 FRONT HANDLE BOLT 7.8 69 X 73983

18 FRONT HANDLE 509205

19 FUEL BREATHER COMPLETE 71748

20 WATER DEFLECTOR, BOTTOM 71766

21 BREATHER TUBE BODY 71751

22 BREATHER TUBE ELBOW 71759

23 FUEL BREATHER, REMOTE 71761

24 BREATHER TUBE EXTENSION 71777

25 TUBE CLAMP 71760

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

17

4. SPARE PARTS DIAGRAM

FUEL TANK AND HANDLE ASSEMBLY

For saws with serial numbers starting 977.

(see page 17 for serial number starting 967)

680GC SERVICE MANUAL

23

21

20

KEY DESCRIPTION

1 FUEL TANK ASSEMBLY 528655

2 REAR HANDLE HALF 531105

3 SCREW 73976

4 THROTTLE LEVER 530479

5 FUEL CAP ASSEMBLY, WITH OUTER SEAL RING 530471

6 FUEL CAP O-RING 73448

7 FUEL FILTER 73459

8 TRIGGER LOCKOUT LEVER 532028

9 TRIGGER LOCKOUT LEVER SPRING 73988

10 WASHER 73897

11 SCREW 73982

12 SHOCK ABSORBER 73980

13 CLIP, FUEL FILTER 71588

14 FUEL LINE 73375

15 BUMPER, SHOCK ABSORBER, FUEL TANK TOP 73270

16 FRONT HANDLE BOLT 7.8 69 X 73983

17 FRONT HANDLE 545971

18 FUEL BREATHER COMPLETE 71748

19 WATER DEFLECTOR, BOTTOM 71766

20 BREATHER TUBE BODY 71751

21 BREATHER TUBE ELBOW 71759

22 FUEL BREATHER, REMOTE 71761

23 BREATHER TUBE EXTENSION 71777

24 TUBE CLAMP 71760

22

18

24

15

17

16

19

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

18

680GC SERVICE MANUAL

For saws with serial numbers starting 967.

(see page 20 for serial number starting 977)

4. SPARE PARTS DIAGRAM

AIR INTAKE ASSEMBLY

KEY DESCRIPTION

1 CYLINDER COVER ASSEMBLY 71754

2 AIR FILTER CANISTER, POLYESTER 71752

3 AIR FILTER COVER 530473

4 FILTER COVER SCREW 73992

5 FILTER SUPPORT 73338

6 FILTER COVER GASKET 71756

SCREW, CYLINDER COVER, LONG, SOCKET

7

HEAD

8 PREFILTER PLASTIC, SECONDARY FILTER 73336

9 AIR FILTER FLANGE 71758

10 FILTER SUPPORT SCREW 2.9 26 X 73337

11 FILTER CANISTER GASKET 73335

12 O-RING 71472

13 TUBE CLAMP 71760

14 COMPENSATOR TUBE 505382

15 BREATHER GROMMET 19.7 174 71763

16 THROTTLE ASSEMBLY 71750

17 O-RING, AIR FILTER 73331

18 WASHER 73897

TORQUE LOCTITE

Nm in‑lbs. 242

X X X

®

PART NUMBER

71771

19

4. SPARE PARTS DIAGRAM

For saws with serial numbers starting 977.

(see page 19 for serial number starting 967)

680GC SERVICE MANUAL

AIR INTAKE ASSEMBLY

KEY DESCRIPTION

1 CYLINDER COVER ASSEMBLY 545973

2 AIR FILTER CANISTER, POLYESTER 71752

3 AIR FILTER COVER 530473

4 FILTER COVER SCREW 73992

5 FILTER SUPPORT 73338

6 FILTER COVER GASKET 71756

SCREW, CYLINDER COVER, LONG, SOCKET

7

HEAD

8 PREFILTER PLASTIC, SECONDARY FILTER 73336

9 AIR FILTER FLANGE 71758

10 FILTER SUPPORT SCREW 2.9 26 X 73337

11 FILTER CANISTER GASKET 73335

12 O-RING 71472

13 TUBE CLAMP 71760

14 COMPENSATOR TUBE 505382

15 BREATHER GROMMET 19.7 174 71763

16 THROTTLE ASSEMBLY 71750

17 O-RING, AIR FILTER 73331

18 WASHER 73897

TORQUE LOCTITE

Nm in‑lbs. 242

X X X

®

PART NUMBER

71771

20

680GC SERVICE MANUAL

1

2

3

4

6

5

7

19

21

22

23

24

25

27

26

20

8

9

10

17

16

18

15

14

13

12

11

16

4. SPARE PARTS DIAGRAM

WALL WALKER

KEY DESCRIPTION

1 GUARD FLAP X X 71534

2 WALLWALKER

3 GUARD FLAP CLAMP X X 71531

4 SCREW & WASHER X X 505469

5 GUARD FLAP SCREW X X 4.8 43 X 71479

6 WASHER X X 73951

7 GUARD FLAP SPACER X X 71480

8 WATER HOSE GASKET X 71469

9 FITTING X X 71467

10 CLIP X X 545975

11 RING NUT X X 71457

12 WATER HOSE O-RING X X 71468

13 WATER SHUT-OFF VALVE X X 71458

14 FITTING X X 71454

15 TUBE X X 71455

16 HOSE CLAMP X X 71465

17 HOSE HANGER X X 71461

18 WATER HOSE COVER X X 71464

19 WATER HOSE SCREW X X 19.7 174 71463

20 FITTING X X 71453

21 COPPER WASHER X X 71456

22 WATER TANK CAP X X 73923

23 FUEL CAP O-RING X X 73448

24 TUBE X X 71459

25 FITTING X X 71470

26 FITTING X X 71471

27 O-RING X X 71472

28 HOSE HANGER BUTTON X X 71744

®

LEVER ARM X X 71532

®

AND WATER DELIVERY SYSTEM

For saws with serial number starting 967 & 977

SERIAL NUMBER

STA RTIN G

TORQUE LOCTITE

967 977 Nm in‑lbs. 242

®

PART NUMBER

21

4. SPARE PARTS DIAGRAM

For saws with serial number starting 967 & 977

680GC SERVICE MANUAL

SIDE COVER ASSEMBLY

KEY DESCRIPTION

1 SIDE COVER INSERT, TOP 71534

2 SIDE COVER NUT 71532

3 CHAIN COVER CAP 71531

4 NUT 505469

5 WALLWALKER

6 WASHER 73951

7 WALLWALKER

8 SCREW 71469

9 SIDE COVER PLATE 71467

10 LOWER GUARD 545975

11 SIDE COVER INSERT, BOTTOM REAR 71457

12 SIDE COVER INSERT, TOP REAR 71468

13 RUBBER BUMPER COVER 71458

14 SIDE COVER ASSEMBLY, COMPLETE 71454

®

SIDE ARM 4.8 43 X 71479

®

SIDE ARM SCREW 71480

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

22

680GC SERVICE MANUAL

For saws with serial number starting 967 & 977

4. SPARE PARTS DIAGRAM

CARBURETOR REPAIR KIT

KEY DESCRIPTION

1 CARBURETOR, WALBRO WJ-122B 528628

2 CARBURETOR REPAIR KIT 73996

TORQUE LOCTITE

Nm in‑lbs. 242

®

PART NUMBER

23

This page intentionally left blank.

680GC SERVICE MANUAL

24

680GC SERVICE MANUAL

5. AIR INTAKE

5. This section covers the disassembly, inspection and assembly air induction system.

5.1

Loosen the air filter cover screws and remove air filter cover.

5.2

Remove air filter from cover.

A. Inspect air filter

B. Replace if necessary

5.3

Clean filter with cleaning solution and a nylon brush.

A. Clean filter with cleaning solution and water.

B. Let dry and reinstall.

25

5. AIR INTAKE

5.4

Inspect air filter cover gasket.

A. Replace if permanently depressed or hard, due to slurry.

5.5 Inspect filter canister gasket.

680GC SERVICE MANUAL

A. Clean

B. Replace if necessary

5.6

Check air filter mount screws and lightly secure them if they are loose.

26

ICS 680GC Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual