Stihl BT 45 Manual

7BT 45
4. Troubleshooting
4.1 Clutch
Condition Cause Remedy
Tool stops at full throttle
under load
Clutch shoes badly worn Install new clutch shoes or a new
clutch
Tool runs at idle speed Idle speed too high Readjust idle speed screw
(counterclockwise)
Clutch springs stretched or
fatigued
Fit new clutch springs
Spring hooks broken Fit new clutch springs
Loud noises Clutch springs stretched or fatigued Replace all clutch springs
Clutch shoe retainer (carrier)
broken
Fit new retainer (carrier) or clutch
Clutch shoes and carrier worn Install a new clutch

Stihl BT 45 Specifications

General

Engine Type	2-stroke
Displacement	27.2 cc
Power Output	0.9 kW (1.2 hp)
Weight	5.2 kg
Power Source	Gasoline
No-Load Speed	0 - 300 rpm