Ÿ
Insert the key and open the cover.
Ÿ
Manually raise the boom until the end of the stroke and screw the knob locking
the mechanism in open position.
Ÿ
Close the cover.
OPENING
Ÿ
Insert the key and open the cover.
Ÿ
Manually lower the boom until the end of the stroke and screw the knob locking
the mechanism in closed position.
Ÿ
Close the cover.
CLOSING
Lock/release
knob
Lowered boom
Raised boom
Ÿ
Acting on the lower tie nut, put the spring
in tension until the rod is balanced at 45°
and the trapezoidal bracket will remain
horizontal to the ground.
Ÿ
The trapezoidal bracket has four holes
which regulate the force of the spring
according to the length of the bar. The
force of the spring is reduced the more it is
placed internally
.
SPRING REGULATION
Nut
Spring adjustment
holes.
Right side
spring adjustment
holes.
Left side
Bottom
rod
Trapezoidal
bracket
