Non-Overhaul Removal and Replacement
Teledyne Continental Motors, Inc.
TM
10-106
IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
10-10.
Air Conditioner (Optional Component) Maintenance
Maintenance of TCM air conditioning components includes checking the alignment of
the compressor, starter adapter, idler sheave and installation and adjustment of the
compressor drive belt.
10-10.1. Air Conditioner Compressor Component Alignment
A Pulley Alignment Tool (Borroughs 8082; see Chapter 3, Tools and Supplies) is
required to check the alignment of the compressor, starter adapter and idler sheave
Procedure
1.
Verify the Pulley Alignment Tool is flat by placing it on a perfectly flat surface.
2.
Place the alignment tool around the drive sheave with the extended end overlaying
the upper portion of the compressor sheave.
3.
When the alignment is correct, the Pulley Alignment Tool extended end (bar center)
will fall within 0.020 inches of the center of the sheave.
4.
Use this same procedure to check the idler sheave, except the extended end of the
Pulley Alignment Tool will overlay the lower portion of the compressor sheave
(Figure 10-81).
5.
Repeat each step with the drive sheave rotated approximately 90° to ensure that the
drive sheave is not warped.
Figure 10-81.
Belt Sheave Alignment
6.
If the drive sheave or idler is not aligned, remove the sheaves and install up to (but do
not exceed) five 0.020 shims to achieve the correct alignment. Refer to Figure 10-82.
