PIAGGIO Beverly 300ie - Service manual > Inspecting the clutch drum

• Check that the clutch bell is not worn or damaged.
• Measure the clutch bell inside diameter.

Characteristic

Max. value clutch housing
Max. value: Ø 134.5 mm

clutch housing standard value
Standard value: Ø 134 - 134.2 mm

Checking the bell working surface eccentricity

• Install the bell on a driven pulley shaft using 2 bearings (inside diameter: 15 and 17 mm).
• Lock with the original spacer and nut.
• Place the bell/shaft unit on the support to check the crankshaft alignment.

• Using a feeler dial gauge and the magnetic base, measure the bell eccentricity.
• Repeat the measurement in 3 positions (Central, internal, external).
• If faults are found, replace the bell.

Specific tooling
  020074Y Support base for checking crankshaft alignment
  020335Y Magnetic support for dial gauge

Characteristic

clutch housing inspection: Limit eccentricity.
Admissible limit eccentricity: 0.15 mm

Removing the clutch

Fit the driven pulley spring compressor specific tool with medium length pins screwed in position "C" on the tool internal side.

• Introduce the adapter ring 11 with the chamfering facing the inside of the tool.
• Fit the driven pulley unit on the tool with the insertion of the 3 pins in the ventilation holes in the mass holder support.
• Make sure that the clutch is perfectly inserted into the adapter ring before proceeding to loosen/tighten the clutch nut.
• Use the special 46x55 wrench component 9 to remove the nut fixing the clutch in place.
• Dismantle the driven pulley components (Clutch and spring with its plastic holder)

CAUTION

THE TOOL MUST BE FIRMLY FIXED IN THE CLAMP AND THE CENTRAL SCREW MUST BE BROUGHT INTO CONTACT WITH THE TOOL. EXCESSIVE TORQUE CAN CAUSE THE SPECIFIC TOOL TO BUCKLE.

Specific tooling
  020444Y011 adapter ring
  020444Y009 wrench 46 x 55
  020444Y Tool for fitting/ removing the driven pulley clutch

Inspecting the clutch

• Check the thickness of the clutch mass friction material.
• The masses must not show traces of lubricants; otherwise, check the driven pulley unit seals.

N.B.

UPON RUNNING-IN, THE MASSES MUST EXHIBIT A CENTRAL FAYING SURFACE AND MUST NOT BE DIFFERENT FROM ONE ANOTHER.

VARIOUS CONDITIONS CAN CAUSE THE CLUTCH TO TEAR.

CAUTION

DO NOT OPEN THE MASSES USING TOOLS TO PREVENT A VARIATION IN THE RETURN SPRING LOAD.

Characteristic

Check minimum thickness
1 mm

Pin retaining collar

• Simultaneously turn and pull the collar manually to remove it.

N.B.

USE TWO SCREWDRIVERS IF YOU HAVE ANY DIFFICULTY.

N.B.

BE CAREFUL NOT TO PUSH THE SCREWDRIVERS IN TOO FAR TO AVOID DAMAGE THAT COULD COMPROMISE THE O-RING SEAL.

• Remove the 4 torque server pins and pull the pulley halves apart.

See also: