![Stihl Sr 420 Instruction Manual Download Page 9](http://html1.mh-extra.com/html/stihl/sr-420/sr-420_instruction-manual_1378558009.webp)
1
372BA025 KN
3
4
► Push the extension tube (3) into the pleated
hose (1) as far as it will go.
► The metering unit (4) must point in the same
direction as the control handle.
5
372BA026 KN
► Tighten down the clamp screw (5) (see
“Adjusting the Control Handle”).
3.3
Fitting the Liquid Hose
1
372BA027 KN
2
► Secure liquid hose (1) from the container to
the pleated hose with the retainer (2).
4
3
372BA028 KN
1
4
► Use hose clips (4) to secure hose (1) and
hose (3) to the stubs on the stop cock.
► Close the stop cock (move lever to vertical
position).
► Fill up with water and check all hose connec‐
tions for leaks.
3.4
Adjusting the Control Handle
1
2
372BA029 KN
► Put the machine on your back.
► Loosen the clamp screw (1).
► Move the control handle (2) along the tube to
the most comfortable position.
► Tighten down the clamp screw (1).
4
Harness
4.1
Attaching the Harness
081
1BA009 KN
► Attach strap hook to the backplate.
4.2
Adjusting the Harness
373BA003 KN
► Pull the ends of the straps downward to
tighten the harness.
4 Harness
English
0458-372-0121-C
9