PIAGGIO 2012 MSS APE 50, Service Station Manual, Page: 14 / 117

FRONT SUSPENSION UNIT
Name Torque in Nm
Wheel locking centre nut 75 to 90 Nm
Nuts fixing the wheel rim to the drum 20 to 28 Nm
Shock absorber lower anchoring nut 100 to 130 Nm
Shock absorber upper fixing nut 30 to 40 Nm
Steering upper seat 30 to 40 Nm
Steering upper bearing ring nut 50 to 60 Nm
REAR SUSPENSION UNIT
Name Torque in Nm
Nuts fixing the shoe support to the wheel hub 22 to 28 Nm
Nut fixing the wheel hub to the swinging arm 50 to 70 Nm
Nut for shock absorber lower and upper anchorage 30 to 40 Nm
Nut for anchoring the swinging arm to the chassis 40-50 Nm
Wheel locking centre nut 80 to 100 Nm
Nuts fixing the wheel rim to the drum 20 to 28 Nm
GENERAL PART
Name Torque in Nm
Brake pump to the chassis 12 to 20 Nm
Handlebar fixing bolt 35 to 60 Nm
Assembly clearances
FITTING CLEARANCES
Name Description Dimensions Initials Quantity
Distance between the
ends of seal rings within
the upper and lower cyl-
inder-ring (mm)
0.2 to 0.3
Gearbox fitting clear-
ance (mm)
0.15 to 0.40
CAUTION
THE GEARBOX SHAFT FITTING CLEARANCE MUST BE VERIFIED WITH THE FEELER GAUGE.
Specific tooling
060824Y Probe
Cylinder-piston oversizes
CYLINDER - PISTON
Specification Desc./Quantity
Normal cylinder nominal sizes Ø=38.40 +0.025 - 0.005
Normal piston nominal sizes Ø=38.265 ±0.015
CYLINDER COUPLING - PISTON
Name Initials Cylinder Piston Play on fitting
Coupling 1st Oversize 38.600 to 38.620 38.455 to 38.475 0.145
Coupling 2nd Oversize 38.800 to 38.820 38.655 to 38.675 0.145
Coupling 3rd Oversize 39.000 to 39.020 38.855 to 38.875 0.145
Characteristics
MSS APE 50
CH - 14