Planmeca Compact I, Technical Manual

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Chapter F - ADJUSTMENTS
Planmeca Compact i F-17
MECHANICAL ADJUSTMENTS
Technical Manual
1.13 Adjusting the instrument arms
The tube guide/roller assembly can be turned around the axis of the instrument arm. Make
sure that the roller is in exact vertical position. The roller is adjusted as follows.
a) Detach the roller by pulling it.
b) Remove the spreading rubber from inside the axle of the roller.
c) Loosen the M3x6 DIN 916 screw inside the axle and twist the tube guide to get the roller in
vertical position.
d) Tighten the M3x6 DIN 916 screw and place the spreading rubber back inside the axle.
e) Push the roller back to its position.
The switching operation is adjustable and it should take place when the instrument arm is
bent 20°…30°. The switching operation is adjusted as follows.
a) Detach the roller by pulling it.
b) Loosen the M3x6 DIN 916 screw. The switching pivot at the lower head of the arm is now
movable. The more the switching pivot comes out from inside of the instrument arm the
bigger the bending angle of the arm will be before the switch connects.
c) Adjust the switching pivot and tighten the M3x6 DIN 916 screw.
d) Push the roller back to its position.
The switching pivot is adjusted at the factory to come out 6mm from inside the arm at the arm-
rest position. In that case the instrument arm bends 20°…30° before the switch connects.
The axis of the instrument arm
Holding screw
inside to adjust
the switching
operation.
Holding screw inside
the axle to adjust
the hose guide around
the axis of the instrument arm.
Tube guide
Spreading
rubber
Vertical axis
Horizontal axis
Roller
20°…30°
6mm
Switching pivot,
movable when
the holding screw
is loosened.
M3x6 DIN 916