Technical data

84
- Insert the pulley unit with the belt into the tool.
- Slightly pre-load the spring.
- Make sure that the clutch is perfectly inserted into the adap-
ter ring before proceeding to tighten the clutch nut.
- Place the tool into the vice with the control screw in hori-
zontal axis.
- Fully pre-load the spring.
- Apply the clutch fixing nut and tighten it at the prescribed
torque using the specific wrench 46x55.
- Loosen the tool clamp and insert the belt according to its
direction of rotation.
- Lock the driven pulley again using the specific tool.
- Pre-load the clutch contrast spring by turning and pulling at
the same time, up to reaching the maximum pulley opening
and place the belt on the minimum rolling diameter.
- Remove the driven pulley /belt assembly from the tool.
N.B.
FOR DESIGN REASONS, THE NUT IS SLIGHTLY ASYMME-
TRIC; THE SURFACE SHOULD BE MOUNTED IN CONTACT
WITH THE CLUTCH.
N.B.
DURING THE SPRING PRE-LOADING STEP, BE CAREFUL
NOT TO DAMAGE THE SPRING PLASTIC ABUTMENT AND
THE BUSHING THREADING.
N.B.
AN EXCESSIVE AMOUNT COULD IMPAIR THE CLUTCH
FUNCTIONS.
Specific tooling
020444Y011 Adapter ring
020444Y009 wrench 46 x 55
Locking torques (N*m)
Clutch fixing