Propeller Governor Drive Installation - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual

21. Propeller Governor Drive Installation

NOTICE: Examine each component to be installed on the propeller governor drive. Replace any
damaged or worn part with a new part. The gear assembly is installed in the left
crankcase half before crankcase assembly.
The following new parts must be available to install the propeller governor drive:
• Four lock washers
• Governor gasket
• Governor drive cover gasket
Thrust Washer Part Number
A. Governor Drive Gear Installation
(1) Lubricate the shaft of the propeller governor
drive gear with engine oil and install the
propeller governor drive gear in the left half of
the crankcase.
(2) Apply Lubriko
the rear face of the propeller governor idler
gear shaft.
NOTICE: In the next step, install the thickest
thrust washer (Table 2) to keep the
backlash at a low limit
(3) Install the gear assembly and the thrust washer,
as required to keep the backlash at a low limit,
into the crankcase (Figure 75).
(4) Install the propeller governor idler gear shaft
into the crankcase through the gear assembly
and thrust washer (Figure 76).
© 2018 Avco Corporation. All Rights Reserved
November 2018
• Gear Assembly
• Set screw
Table 2
Thrust Washer Thickness
73249
73250
73251
73252
01L21418
®
M-6 Grease or equivalent to
• Thrust washer
(different thickness sizes available - Table 2 -
requires measurement of clearance in subsequent
steps to identify the correct thrust washer)
Thrust Washer Thickness
in.
0.0585 to 0.0595 1.4859 to 1.5113
0.062 to 0.063 1.575 to 1.600
0.0655 to 0.0665 1.6637 to 1.6891
0.069 to 0.070 1.753 to 1.778
0.055 to 0.056 1.397 to 1.422
Propeller Governor Idler Gear
Assembly and Thrust Washer
Propeller Governor
Idler Gear Shaft
mm
Figure 75
Figure 76
72-20
Page 177