Manufacturer
Maintenance Manual
AutoGyro
MTOsport
MMM-CV-E_16-06-13
Part E - 63-11-10 6-1
Page 1 of 3
63-11-10 6-1 INSPECTION: PRE-ROTATOR CLUTCH
LNE
GENERAL, REFERENCES AND REQUIREMENTS
Task may only be performed by an organization or individual trained and entitled to do 'Line Maintenance'!
Secure gyroplane against unauthorized or unintended operation!
SPECIAL TOOLS AND CONSUMABLE MATERIALS
None
PRECAUTIONS AND SAFETY MEASURES
PROCEDURES
1
Inspect pre-rotator bracket for cracks, especially in the marked area (Fig. 1).
2
Inspect alignment of upper and lower pulley. Use a ruler at the flanges (Fig. 2).
3
Inspect sufficient slackness of belt. Belt must click when slapped with the palm of your hand against lower
pulley from below. Replace belt if necessary.
NOTE: Improper pre-rotation (too high clutch speed, extensive slip) induces heat which may
cause the belt to shrink in diameter. As a result the clutch is permanently exposed to
friction which causes excessive wear, heat and further shrinking.
4
Check that pneumatic piston is not at its mechanical stop during clutch activation (belt is short enough). In
order to do so, activate pre-rotation (engine off) until clutch is fully engaged. Check that pneumatic cylinder is
not in its mechanical end stop by manually compressing the cylinder further (Fig. 3).
5
Check that upper pulley / actuation arm can easily return into its neutral position (i.e. sufficient braking
action). If actuation arm hesitates to return into neutral position and braking action is low, perform the
following work steps 6 to 11.
6
Disconnect ball joint from actuation arm.
7
Check that bearing of actuation arm has no excessive friction. In order to do so, move actuation arm by hand.
Adjust if necessary.
8
Move actuator piston by hand and check alignment of ball joint and actuation arm bore. If necessary, adjust
(carefully bend) attachment bracket of actuator.
9
Move actuator piston by hand and assess ease of movement. In case of excessive friction, the actuator
piston must be replaced.
10 Rotate brake rubber, if necessary (run-in groves).
11 Re-connect ball joint to actuation arm.
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