EFFECTIVE
WEIGHT
WHEN
INSTALLED
(GRAMS)
WEIGHT
CALCULATIONS.
THE PAN
WEIGHT
AND THE
EFFECTIVE
WEIGHT.
THE
EFFECTIVE
WEIGHT
IS
USED
FOR THE
BALANCE
WEIGHT
IS
LESS).
THE
LONGER
THE
BALANCE
SCREW,
THE
GREATER
THE
DIFFERENCE
IS
BETWEEN
TO
THE
ENGINE
CENTERLINE,
THE
EFFECTIVE
WEIGHT
IS
LESS THAN
THE PAN
WEIGHT
(THE
MOMENT
TO
THE
FACT THAT
THE
BALANCE WEIGHTS
ARE
INSTALLED
RADIALLY
INTO
THE
SPINNER
WITH
RESPECT
1
THE
DIFFERENCE
BETWEEN
THE PAN
WEIGHT
AND THE
EFFECTIVE
WEIGHT
OF
THE
BALANCE
SCREWS
IS
DUE
TO
THE
ENGINE
CENTERLINE.
BECAUSE
THE
CENTER
OF
GRAVITY
OF
THE
BALANCE
SCREW
IS
CLOSER
PO#
MARKED
ON
SOCKET
HEAD
THDS
TOTAL
LENGTH
PO
NO.
TOTAL
LENGTH
INCHES
MM
PAN
WEIGHT
BALANCE
SCREW
WEIGHTS
(GRAMS)-
REF
ONLY
6.44
9.58
12.68
15.60
18.44
21.15
23.75
6.6
13.4
16.8
20.0
23.6
27.0
10.0
20.3
33.0
45.7
58.4
71.1
83.8
96.5
0.8
1.3
1.8
2.3
2.8
3.3
3.8
PO7
PO1
PO2
PO3
PO4
PO5
PO6
0.00
3.14
6.24
9.16
12.00
14.71
17.31
(GRAMS)
EFFECTIVE
DIFFERENCE
POX-P07
1
PO
NO. PO6 PO5 PO4 PO3
9.16
14.7117.31
PO7
6.028.86
14.17
3.14
PO1
2.925.766.24
PO2
2.849.16
PO3
PO4
PO5
2.71 5.55
5.31 8.15
PO6
PO7
17.31
14.71
2.60
5.31
8.15
2.60
2.71
5.55
8.47
PO2
6.24
3.10
2.92
5.76
8.47
PO1
11.57
3.14
3.10
6.02
8.86
REPLACEMENT
SCREW
EXISTING
SCREW
EFFECTIVE
WEIGHT
DIFFERENCE
12.00
0
11.07
0
11.57
0
12.00
0
2.84
0
11.07
0
14.17
0
F00934 S00061422869_V1
Polar Weight Map and Balance Screw Weights
Figure 505/72-31-00-990-814-G00 (Sheet 2 of 2)
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-31-00
NoC
Page 515
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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
To Next Page
Loading...
