Lycoming YO-233-B2A Maintenance Manual page 108

(10) Disconnect the positive terminal of the battery.
(11) Disconnect the engine from the alternator.
(12) Remove the baffling as required.
(13) Drain the oil as described in the "Oil Change Procedure" in Chapter 12-10.
(14) Remove all wiring bundle attaching clamps and hardware.
(15) Install and torque the oil sump drain plug in accordance with the latest revision of the
Service Table of Limits - SSP-1776. Safety the drain plug
(16) Disconnect the throttle control in accordance with the airframe manufacturer's
instructions.
(17) Remove the manifold pressure gage line and airframe fuel supply hoses in accordance
with the airframe manufacturer's instructions.
(18) Refer to the airframe manufacturer's instructions to disconnect any accessory
connections or to remove any external accessories to enable removal of the engine from
the airframe.
(19) Make sure that all wires, lines, and hoses and attachments between the engine and
airframe are disconnected.
(20) Attach an engine-lifting cable (with a minimum capacity of 250 to 300 lb (114 to 136
kg) to the lifting lugs on the engine in accordance with Figure 1.
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Page 88
Figure 1
Lifting Lugs and Engine Mounts
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YO-233-B2A Engine Maintenance Manual
TEO-540-A1A Engine Maintenance Manual
February 2021