Alternator And Bracket Removal - Lycoming TEO-540-C1A Maintenance Manual

(4) Rotate the alternator on the bracket to adjust the alternator belt tension.
(5) Torque the two bolts on the alternator adjusting link to 17 ft.-lb. (23 Nm).
(6) Complete a check of the alternator belt tension per the applicable method in this chapter.
(7) Install new safety wire on the two bolts on the alternator adjusting link as shown in
Figure 4.

4. Alternator and Bracket Removal

CAUTION DISCONNECT THE BATTERY AND ALL POWER TO THE ENGINE. TO
PREVENT ELECTRICAL SHOCK AND ACCIDENTAL ENGINE START.
A. To remove the alternator:
NOTICE: Use a thin wrench to hold the bottom nut while removing the top nut when
disconnecting the aircraft terminal wires.
(1) Disconnect any aircraft wiring attached to the alternator. Discard the lock washers.
(2) Cut and remove the safety wire from the two bolts on the alternator adjusting link where
shown in Figure 4.
(3) Remove the two bolts and two different washers from the alternator adjusting link (Figure
5).
(4) Remove the alternator adjusting link.
(5) Remove the two cotter pins, two bolts, two slotted nuts, shims and three washers from the
alternator bracket, strut, and alternator (Figure 5). Discard the cotter pins.
(6) Remove the alternator and alternator belt.
B. To remove the alternator bracket:
(1) Remove the two bolts and lockplate from the alternator bracket (Figure 5). Discard the
lockplate.
(2) Remove the two bolts and washers from the strut and alternator bracket.
(3) Remove the strut and alternator bracket.
5. Alternator and Bracket Installation
A. To install the alternator bracket:
(1) Mount the alternator bracket on the engine.
(2) Install a new lockplate with two bolts and washers on the alternator bracket (Figure 5).
Torque the bolts to 17 ft.-lb. (23 Nm).
(3) Bend the tabs of the lockplate against the bolts.
(4) Attach the strut to the alternator bracket with the two bolts and washers. Torque the bolts
in accordance with the latest revision of the Service Table of Limits SSP - 1776.
B. To install the alternator:
NOTICE: Refer to the latest revision of Service Instruction No. SI-1154 to ensure the correct
approved alternator for your engine is installed.
(1) Mount the alternator on the alternator bracket (Figure 5).
(2) Install the bolt, two slotted nuts, shims (as many as necessary) and three washers on the
alternator bracket and alternator as shown in Figure 5. Install a new cotter pin in each
new slotted nut.
72-70
Page 272
TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
© 2018 Avco Corporation. All Rights Reserved
November 2018