Stihl BR 550, Руководство по обслуживанию

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1 BR 500, BR 550, BR 600
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© ANDREAS STIHL AG & Co. KG, 2009
Contents
1. Introduction 2
2. Safety Precautions 2
3. Specifications 3
3.1 Engine 3
3.2 Ignition System 3
3.3 Fuel System 3
3.4 Tightening Torques 4
4. Troubleshooting 6
4.1 Rewind Starter 6
4.2 Ignition System 7
4.3 Carburetor 8
4.4 Engine 10
5. Rewind Starter /
Shroud
11
5.1 General 11
5.2 Removing
and Installing
11
5.3 Pawl 11
5.4 Rope Rotor 12
5.5 Starter Rope/Grip 13
5.6 Rope Guide Bushing 14
5.7 Replacing
the Rewind Spring
14
5.8 Tensioning
the Rewind Spring
15
5.9 Shroud 16
6. Fuel System 17
6.1 Air Filter 17
6.2 Carburetor 19
6.2.1 Leakage Test 19
6.2.2 Removing
and Installing
20
6.3 Servicing
the Carburetor
20
6.3.1 Metering Diaphragm 20
6.3.2 Inlet Needle 21
6.3.3 Pump Diaphragm 22
6.3.4 Accelerator Pump 23
6.4 Adjusting
the Carburetor
25
6.4.1 User Adjustment 25
6.4.2 Basic Setting in
Service Shop
26
6.5 Tank Vent 27
6.6 Fuel Hoses/
Pickup Body
28
6.7 Fuel Tank 29
7. Engine 29
7.1 Compression
Pressure
29
7.2 Checking / Adjusting
Valve Clearances
30
7.3 Rocker Arms /
Pushrods
31
7.4 Cam Followers 32
7.5 Cam Gear 33
7.5.1 Decompression
System
33
7.6 Muffler/Spark
Arresting Screen
34
7.7 Flywheel 35
7.8 Testing for Leaks 35
7.8.1 Preparations 36
7.8.2 Vacuum Test 36
7.8.3 Pressure Test 37
7.9 Crankshaft 38
7.9.1 Oil Seals 38
7.9.2 Crankcase,
Lower Half
39
7.9.3 Crankshaft 40
7.9.4 Piston 40
7.9.5 Piston Rings 42
7.9.6 Valves / Valve
Springs
43
7.9.7 Upper Half of
Crankcase
with Cylinder
43
8. Ignition System 44
8.1 Ignition Module 45
8.2 Ignition Timing 45
8.3 Testing the
Ignition Module
45
8.4 Removing and
Installing
46
8.5 Spark Plug Boot 47
8.6 Testing the
Wiring Harness
48
8.7 Ignition System
Troubleshooting
49
9. Control Handle 52
9.1 Throttle Trigger/
Interlock Lever
52
9.2 Setting Lever 52
9.3 Throttle Cable 53
9.3.1 Removing and
Installing
53
9.3.2 Adjusting 53
10. AV System 54
10.1 Spring Elements 54
10.2 Backplate 54
11. Fan 55
11.1 Outer Fan Housing 55
11.2 Inner Fan Housing 56
11.3 Fanwheel 56
11.4 Antistatic Wire 57
12. Special
Servicing Tools
58
13. Servicing Aids 59
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RA_452_00_01_02.book Seite 1 Donnerstag, 16. Februar 2012 11:52 11