AUTO GYRO Cavalon Maintenance Manual page 260

62-20-00 8-1 REPLACEMENT: DRIVE GEAR
GENERAL, REFERENCES AND REQUIREMENTS
Task may only be performed by an organization trained and entitled to carry out 'Professional Maintenance'!
Secure gyroplane against unauthorized or unintended operation!
Gyroplane must be placed on level ground and restrained (blocks, chocks)
Rotor system must be removed, see
SPECIAL TOOLS AND CONSUMABLE MATERIALS
AG-BAS-02 Loctite 243 blue
LR IMPORTANT NOTE: Procedure involves parts with limited reusability. Check Parts List below
before starting job!
PRECAUTIONS AND SAFETY MEASURES
CAUTION: When removing or disassembling make sure to mark all parts so that each and every part of
the component is re-assembled and installed in exactly the same location and orientation!
PROCEDURES
1 Switch pneumatic mode selector to BRAKE.
2 Remove and dispose the split pin (1) (Fig.1 and 2).
WARNING: Wear eye protection when removing attachment hardware!
3 Undo the castle nut (2) (Fig.1 and 2).
4 Switch pneumatic mode selector to FLIGHT.
5 Remove the castle nut (2) (Fig.1 and 2).
6 Remove the teeter tower with the drive gear. Fix the teeter tower in a bench vise carefully.
7 Remove and dispose the 6 screws and 6 washers of the drive gear. Remove the drive gear.
8 Put new drive gear on teeter tower.
9 Apply Loctite 243 to the six screws and six washers of the drive gear. Tighten the screws with a torque of 25
Nm.
10 Rotate rotor head so that rotor blades (removed!) would point exactly in flight direction.
11 Put teeter tower with new drive gear on the rotor head.
12 Align the magnet to the 7 o´clock position in flight direction (Fig.4).
13 Tighten castle nut (2) with a torque value enough to fix the adjustment and of the main bolt.
14 Inspect backlash of pre-rotator upper engagement. Backlash should be as tight as possible, but also wide
enough to allow easy engagement of the pinion into the sprocket wheel in any position.
15 Torque-tighten castle nut (2) with final torque of 120 Nm and re-check position. Apply further torque until the
split pin can be inserted.
16 Insert and secure new split pin (1). Make sure that ends do not contact rotating parts (Fig.2).
17 Inspect backlash of pre-rotator upper engagement again. Backlash should be as tight as possible, but also
wide enough to allow easy engagement of the pinion into the sprocket wheel in any position.
18 Install the rotor system according to
19 Perform Job Card 63-11-30 6-1
AMM-CV-915iS/916iS-EN-
E-2023-12
Aircraft
Maintenance Manual
62-11-00 4-1
62-11-00 4-4.
"INSPECTION: PRE-ROTATOR UPPER ENGAGEMENT".
Part E - 62-31-00 6-1
AutoGyro
Cavalon 915 iS / 916 iS
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