To Next Page

To Previous Page

47FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85

– Remove the shroud, b 5.1

– Carry out leakage test, b 9.2.1

: Take out the screws (1).

– Remove the end cover with cap.

936RA023

: Take the cap out of the end cover.

932RA285

: Remove the flange.

936RA024

: Inspect the metering diaphragm

and gasket and replace if

necessary, b 9.3.3

Install in the reverse sequence.

936RA025

– Remove flange secured with an

oval end cover, b 9.3.1

– Remove flange secured with a

square end cover, b 9.3.2

: Remove the metering

diaphragm (1) and gasket (2)

936RA026

from the carburetor body.

If the gasket and diaphragm are

stuck together, remove and

separate them very carefully.

: Inspect the diaphragm and

gasket and replace if necessary.

The diaphragm is a very delicate

component. As a result of the

alternating stresses the material

eventually shows signs of fatigue,

i.e. the diaphragm distorts and

swells and has to be replaced.

Install in the reverse sequence.

9.3.2 Flange Mounting with Square End Cover 9.3.3 Metering Diaphragm

Stihl KM 85 Service Manual

Other manuals for Stihl KM 85