Table Of Contents - Husqvarna HS 139A Workshop Manual

1 Introduction
1.1 General.................................................................. 3
1.2 Document description............................................ 3
1.3 Target group...........................................................3
1.4 Revisions................................................................3
1.5 Safety..................................................................... 3
1.6 Servicing tools........................................................3
2 Safety
2.1 Safety definitions....................................................4
2.2 General safety instructions.....................................4
2.3 Special safety instructions......................................4
2.4 Symbols on the product......................................... 4
3 Prepare and do servicing on the product
3.1 Maintenance schedule........................................... 6
3.2 To fill fuel................................................................6
3.3 To do a check of the oil level..................................7
3.4 To replace the engine oil........................................7
4 Servicing data
5 Function overview
5.1 Product overview..................................................13
5.2 Product overview..................................................14
5.3 Serial numbers on the product............................. 15
6 Repair instructions
6.1 To clean and examine the product parts..............16
6.2 Starter.................................................................. 16
6.3 Air filter................................................................. 20
6.4 Carburetor............................................................ 21
6.5 Carburetor............................................................ 22
6.6 Muffler.................................................................. 29
6.7 Ignition system..................................................... 30
6.8 Fuel tank.............................................................. 31
6.9 Flywheel............................................................... 33
6.10 Crankcase.......................................................... 33
6.11 Function test.......................................................37
7 Troubleshooting
7.1 Troubleshooting schedule.................................... 39
8 Technical data
8.1 Technical data......................................................41
8.2 Power speed curve.............................................. 42
8.3 Dimensions.......................................................... 43
8.4 Tightening torques............................................... 45
8.5 Standard dimensions and wear limits.................. 45
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Contents
1425 - 001 - 03.06.2020