Service guide
March 2001
10
2.3 Drive and sensor components
5551 004 Timing belt
5551 066 Timing belt
WARNING!
Always support and lower the
boom (picture) by hand when
loosening and removing timing
belt of motor 3.
Remember to loosen the 3 motor
standoff screws (picture) before
replacement. Reapply correct
timing belt tension according to
below procedures.
Motor 1 and 2
Adjustment of timing belt
5551 004:
With the motor turned off and
all 3 motor standoff screws
loosened apply a load of 2N
near the tip of the screwdriver
engaging the TOP screw and
tighten screw (picture). Then
tighten the 2 other screws.
The load can be provided by a
spring balance or by hanging a
200g mass load (e.g. a stack of
sheets) on the screwdriver.
Make sure the belt is not
transmitting torque during the
procedure.
55551 066
(motor 3)
55551 004
(motor 1+2)
55551 066
(motor 3)
55551 004
(motor 1+2)
Load 2N (200 g)
Motor standoff
screw
Lowered boom
