Table Of Contents - Husqvarna K770 Workshop Manual

1 Introduction
1.1 Document description............................................ 3
1.2 Target group...........................................................3
1.3 Revisions................................................................3
1.4 Safety..................................................................... 3
1.5 Servicing tools........................................................3
2 Safety
2.1 Safety definitions....................................................4
2.2 General safety instructions.....................................4
2.3 Symbols on the product......................................... 4
3 Servicing data
3.1 Symbols in the diagrams........................................5
3.2 Tightening torques................................................. 6
4 Servicing tools
4.1 Servicing tools overview.......................................10
4.2 Servicing tools overview.......................................11
4.3 Servicing tools overview.......................................12
5 Product overview for repair and servicing
5.1 Components.........................................................13
5.2 To disassemble into basic modules..................... 14
6 Repair and servicing
6.1 Starter.................................................................. 20
6.2 Ignition system..................................................... 23
6.3 Flywheel............................................................... 27
6.4 Air filter................................................................. 28
6.5 Fuel system..........................................................29
6.6 Carburetor............................................................ 31
6.7 Decompression valve...........................................40
6.8 Cylinder and piston.............................................. 41
6.9 Piston wear.......................................................... 44
6.10 To assemble the piston...................................... 45
6.11 To assemble the cylinder................................... 46
6.12 Crankcase.......................................................... 47
6.13 Clutch................................................................. 52
6.14 Cutting head.......................................................55
6.15 Wet system........................................................ 60
6.16 Throttle trigger and throttle lock......................... 61
6.17 OilGuard.............................................................62
7 Troubleshooting
7.1 Engine does not start........................................... 64
7.2 Engine stops during operation - no sparks...........65
7.3 Engine stops during operation............................. 65
7.4 Weak output or change of speed......................... 66
7.5 Other engine problems.........................................66
2
Contents
8 Wiring diagram
8.1 Wiring diagram OilGuard......................................67
651 - 001 - 27.06.2018