63Series 4144 Components FC, FS, KM
: Line up the fuel suction hose (1) 
– the flange must match the 
contour of the hole (arrow). 
– Push the fuel suction hose home 
until the rubber lip is properly 
seated in the hole and the flange 
lies flat against the tank housing.
– Coat stub and end of hose with 
STIHL press fluid, b 11
: Push the new fuel return hose (1) 
on to the stub (arrow).
Fuel return hose must be pushed on 
firmly as far as stop.
– Install the spacer flange, b 8.7
1
545RA224 TG
1
545RA225 TG
– Push the carburetor into position.
– To simplify assembly, coat the 
stubs (arrows) and ends of the 
new fuel hoses with a little STIHL 
press fluid, b 11
: Push the new fuel return hose (1) 
and fuel suction hose (2) on to 
the stubs (arrows)
.
Fuel hoses must be pushed on 
firmly as far as stop.
: Use hook 5910 893 8800 to 
remove the fuel hose (1) from the 
fuel tank.
Do not overstretch the fuel hose.
– Fit the pickup body, b 8.9.1
– Close the tank cap.
– Reassemble all other parts in the 
reverse sequence.
545RA040 TG
2
1
545RA226 TG
1
8.9.3 Fuel Tank Cap
See instruction manual.
– Open the tank cap.
: Disconnect the tank cap cord 
from the slot (arrow).
– Inspect the tank cap. Install new 
sealing ring or tank cap if 
necessary.
– Reassemble in the reverse 
sequence.
–Check for leaks.
545RA046 TG