ENGINE - MAINTENANCE PRACTICES
1. General
A. This procedure has three tasks.
(1) The first task manually turns the rotor with an input at the transfer gearbox and requires the
removal of two access cover plates.
(2) The second task turns the N2 rotor pneumatically, with an input at the starter pad, and requires
removal of the starter.
(3) The third task identifies the zero degree point on the N2 Rotor.
TASK 72-00-00-982-001-G00
2. Manually Turn the Engine
(Figure 201)
A. General
(1) This task provides the instructions on how to manually crank the N2 rotor.
(2) The motoring pad is located on the accessory gearbox pad number 7.
(3) It is recommended to have two mechanics to do this task. The second mechanic can verify the
first mechanic work.
B. References
Reference Title
71-00-00-802-133-G00 Power Plant Operation (Usual) (P/B 201)
71-11-04-412-007-G00 Close the Fan Cowl Panels (P/B 201)
71-11-04-712-014-G00 Open the Fan Cowl Panels (P/B 201)
78-31-00-002-116-G00 Manually Open the Thrust Reverser (P/B 201)
78-31-00-002-118-G00 Open Thrust Reverser with Power Unit (P/B 201)
78-31-00-402-117-G00 Manually Close the Thrust Reverser (P/B 201)
78-31-00-402-119-G00 Close Thrust Reverser with Power Unit (P/B 201)
C. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
SPL-6917 Streamer - Caution, Borescope
767-200
Part #: 9470M35P01 Supplier: 06083
Part #: 9470M35P02 Supplier: 06083
D. Location Zones
Zone Area
410 Left Powerplant
420 Right Powerplant
E. Prepare for the N2 Manual Crank
SUBTASK 72-00-00-012-002-G00
(1) Open the left fan cowl panel (TASK 71-11-04-712-014-G00).
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-00-00
NoC
Page 201
D633T1B7 Dec 22/2016
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ABX 001-007, 011, 012, 016-019, 021, 022, 025, 101,
109, 114, 115, 314-999
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