Stihl MS 270 User Manual

Online version - not for reprint
8 MS 270, MS 280
4 Troubleshooting Chart
4.1 Clutch, Chain Drive, Chain Brake, Chain Tensioner
Condition Cause Remedy
Saw chain stops under load at full
throttle
Clutch shoes badly worn Replace clutch shoes or install new
clutch
Clutch drum badly worn Install new clutch drum
Brake band stuck Check freedom of movement
and function of brake band. If
necessary, adjust brake cable of
QuickStop Super (option)
QuickStop Super brake cable
broken (option)
Replace the brake cable
Saw chain rotates at idle speed Engine idle speed too high Readjust with idle speed screw
(counterclockwise)
Clutch springs stretched or fatigued Replace the clutch springs
Clutch spring hooks broken Replace the clutch springs
Loud noises Clutch springs stretched or fatigued Replace all clutch springs
Needle cage damaged Fit new needle cage
Clutch shoe retainer broken Fit new retainer
Clutch shoes and carrier worn Install new clutch
Chain sprocket wears rapidly Chain not properly tensioned Tension chain as specified
Wrong chain pitch Fit chain of correct pitch

Stihl MS 270 Specifications

General

Engine Power	2.6 kW
Displacement	50.2 cc
Weight	5.6 kg
Chain pitch	0.325 inches
Fuel tank volume	0.47 l
Chain Oil Capacity	240 cc
Oil tank volume	240 cc