TM 11-6130-392-34
Table 4-2. Tools and Materials
National
Use
Stock No.
Item
.............................................
Tool kit, Electronic Equipment TK-105/G . . . . . . . . . . .
Heat shrink sleeving installed over some connections . .
Heat Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cover exposed terminals and allow to cure. (Curing
Staking compound, blue SM-B-739574 . . . . . . . . . . . . . .
time 24 hours)
Staking compound, red SM-A-852514. . . . . . . . . . . . . . .
Cover exposed terminals and allow to cure. (Curing
time 24 hours)
6130-01-066-4496
Special, fault isolation of charging modules (A6 through
Extender board, testing (23 pin) SM-D-889125. . . . . . . .
A10) and power supply assembly (A11)
6130-01-066-4495
Extender board, testing (41 pin) SM-D-889122. . . . . . . .
Special, fault isolation of timing circuit assembly
(A12)
Section III. TROUBLESHOOTING
4-9. Use of Equipment and Special
4-7.
Troubleshooting-General
Tools
This section contains instructions for trouble-
shooting the Battery Charger PP-7286/U. General
support personnel will replace and repair compo-
nents, a s specifically listed in paragraph 4-3.
settings in text, F = Function, R = Range. For con-
Replacement and repair procedures are included in
tinuity checks, set Function to Ω (ohms) and Range
Section IV. Test procedures for GS use, after replac-
to 200 Ω (ohms). Reading should be less than 0.2
ing or repairing a component, are included in Sec-
ohms.
tion V. Figure FO-1 is a schematic diagram of the
battery charger.
4 - 1 0 . Bat t e r y C h a r g e r , P r e p a r a t i o n
for Testing
4-8. Troubleshooting Test Sequence
Refer to direct support maintenance, Chapter 3, sec-
tion III, paragraph 3-10.
a. Visual inspection. Before performing tests,
visually inspect the battery charger to find faults
4-11. Troubleshooting Test Procedure
that experienced and trained GS personnel usually
find.
in the sequence listed in column 1 to troubleshoot
b. Test sequence. The test sequence for trouble-
Battery Charger PP-7286/U.
shooting the battery charger and isolating faulty
b. From a malfunction indication in column 2,
components, is:
follow instruction or reference in column 3 to isolate
( 1 ) Perform the troubleshooting test proce-
faults and make required corrections.
dures listed in table 4-3.
NOTE
(2) Perform fault isolation test procedures con-
When a column 3 instruction in table 4-3 re-
tained in paragraph 4-12, when required by a table
quires finding and correcting an open cir-
4-3 instruction.
cuit; resoldering or replacing a wire lead is
(3) Test the battery charger, after replacing or
a general repair authorized and to be per-
repairing a faulty component, by using test proce-
formed by GS personnel.
dure listed in Section V.
c. Test point locations.
CAUTION
If meter needle pegs during any step of
(1) Refer to direct support maintenance
following table, quickly set POWER switch
Chapter 3, section III.
to OFF and perform instruction in column 3
(2) Additional illustrations are provided and
of step (4).
referenced in text.
4-4
