Extra 300LT - Alternator Pulley; System Ground

CHAPTER 24
PAGE 16
PAGE DATE: 21. March 2014
MAINTENANCE MANUAL EXTRA 300LT
3 Rotate the alternator counterclockwise around bolt connec-
tion (3, 6 or 10) to increase the belt tension. Rotate the
alternator clockwise around bolt connection (3, 6 or 10) to
decrease the belt tension.
4a (Bosch) Fasten the castle nuts at bolts (2 & 3) and fasten
bolt (1).
4b (Prestolite) Fasten the castle nut (7) and fasten bolts (4 & 5).
4c (Plane Power) Fasten the stop nut at bolt (10) and fasten
bolts (8 & 9).
5a (Bosch) Install new cotter pins at castle nuts of bolts (2 &
3) and safety wire at bolt (1).
5b (Prestolite) Install new cotter pins at castle nut (7) and safety
wires at bolts (4 & 5).
5c (Plane Power) Install new safety wires at bolts (8 & 9).
24-30-23 Alternator Pulley
Removal
1 Remove the nut from the alternator drive shaft.
2 Remove the pulley from the alternator drive shaft.
Installation
1 Install in reverse sequence of removal.
2 Apply proper torque value of 50 +/-5 Nm (37 +/-3 ft. lbs.).
3 Apply inspection lacquer.
24-30-30 System Ground
The negative side of the battery is connected to the aircraft
steel tube frame (negative ground). This provides a ground
for the system through use of the steel tube frame.