Installation

1. Replace gasket under channel plate (AW: Clean oil filter).
2. Replace oil seal for flange and speedometer driven gear. Also check bushing in extension housing.





3. Reverse procedure to install governor.
- Turn drive ring on BW55 to secure.
- AW70 late type/AW71: install bolt, lock plate and drive ring. Tightening torque 4 Nm (3 ft lb).

4. Tightening torques (all transmissions):
- rear extension housing 35 Nm (26 ft lb)
- coupling flange 45 Nm (33 ft lb)
5. Fill oil and check level.