Echo PB-255ES Manuel D'utilisation page 17

Install vacuum tube(OPTIONAL)
1. Knob
1. Vacuum tube
Install debris bag(OPTIONAL)
1. Locking ring
2. Housing cover
Before you start
a. Vacuum tube
b. Debris bag
c. Vacuum elbow
1. Turn knob counter clockwise until hinged housing cover is
free to open for vacuum tube installation.
2. Opening housing cover, slide recess (G) on vacuum tube
into locking rib (H) , and turn the vacuum tube clockwise so
that it would be locked.
NOTE
Engine will not start/operate unless safety interlock switch (I) is
activated by the vacuum tube.
1. Stand unit upright on blower base.
2. Release locking ring with a coin or screwdriver, and rotate so
that lock symbol (A) is at top of ring.
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