Page 22 Technical Information  08.2005
TI_08_2005_11_01_02.fm
5.10 Repair times
The repair times are specified for trained specialist 
personnel and a fully equipped customer service 
repair shop.
The repair times are specified in minutes.
5.11 Location of the serial number
The serial number is on the cylinder below the valve 
cover.
 
© ANDREAS STIHL AG & Co. KG, 2005 Technical Documentation
D1/MTK-ru
Repair procedure
BR 500
BR 550
BR 600
1 Removing and refitting the engine 60
2 Crankcase, pressure test* 100
3 Pressure testing the crankshaft, 
bearings*
100
4 Pressure testing the O-rings* –
5 Testing the crankcase for leaks, 
trial run
40
6 Cylinder, piston, pressure test * –
7 Ignition system, contact 15
8 Fuel supply, tank vent, test run 15
9 Manifold or flange, pressure test 10
10 Carburetor, testing* 30
11 Blower tube and throttle control 10
12 Starter with trial run 10
13 Clutch, trial run –
14 Muffler 10
15 Air filter 5
16 Stop switch with trial run 10
17 Clutch housing –
18 Drive tube –
19 Replace gearhead or bearing 
housing
–
20 Limit stop or deflector –
21 Drive shaft –
22 Fuel tank 10
23 Test the compression pressure 10
24 Set valve clearance 10
25 Replace crankcase, bottom half 150
26 Replace crankshaft 160
27 Replace cylinder, piston 180
28 Oil supply –
29 Oil pump, trial run –
30 Back plate 5
31 Strap 5
32 Fan housing 50
33 Fanwheel 30
34 Pleated hose with nozzle and 
control handle
30
35 Arrester 30
* Trial run under load