BFGoodrich Avionics
Systems, Inc.
Component
Maintenance Manual
P/N 501-1075-()
D. Place
insulating
washer
atop replacement cell.
E.
Install
the
replacement
ce11(s)
into position
previously
occupied by
the defective cell(s) with the
interconnect tabs overlapping about
3/8-inch.
NOTE: The
positive tab
on
the replacement cell
will
have
to
be folded as indicated in
(601-3)
for
some
cell replacements.
F. Solder
the interconnecting
tabs.
CAUTION: DONOTOVERHEATBATTERYTABS
AS
EXCESS
HEAT
WILL
CAUSE
CELLDAMAGE.A
HEAT
SINK
SHOULDBECONNECTEDBETWEENTHE
CELLANDTHE
SOLDER
JOINT
TO
PREVENT
POSSIBLEDAMAGE.
WARNING: EPOXY
ADHESIVE,
HYSOL
R8-2038,
HAS
BEENIDENTIFIED
AS
HAVINGADEGREE
OF
HAZARDIN
HEALTH,
FLAMMABILITYANDREACTIVITY.CONSULT
THEAPPLICABLE
MATERIAL
SAFETYDATA
SHEET
PRIOR
TO
USEORASSOCIATION
WITH
THISPRODUCT.
G. Replace
Battery Access
Cover
(601-2)
and secure
with screw
(601-1)
or cement as applicable.
When
cementing
is required,
use
Hysol
R8-2038,
or
equivalent.
NOTE: See
Testing
and Fault Isolation
section, Battery
Pack Test Paragraph 5,
for
Battery
Pack and Cell
testing
procedures.
7.
Power Supply
Re-assembly
A.
Install
the
Battery
Pack AlBl
(-45)
in
Chassis
(-220).
Reconnect and
re-solder
the
leads,
removed, in
step
5F to
the
proper tab on the battery
assembly.
B. Reinstall
Support Bracket
(-5),
PS-823A,
C, E,
G,or Battery
Pack A1B2
(-35),
PS-823B,
D,
F,
H, into Chassis
(-220).
C. Replace Cover
Assembly
(-5)
and secure
with
mounting
screws
(-15,
-20).
8.
Performance Test
Verify
serviceability
of the
reworked
Emergency
Power
Supply by
performing
applicable
performance tests
as
directed in the
Testing
and
Fault Isolation section.
msmijtp202Repairdiskl59
24-20-03
Page 606
Revision
A
June
30,
1999
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