|
| |
TM 11-5820-890-30-5
15-11. OPERATIONAL CHECK. Continued
Step 1. BATTERY TRAY CHECK.
Action
Response
a. Connect equipment as shown in figure 14-1.
b. Remove 28 V lamp from test adapter.
c. Connect DMM test lead (+) to test adapter
TEST POINT 7. Connect DMM test lead (-)
to test adapter TEST POINT 12. Read DMM.
d. Install 28 V lamp into test adapter.
e. Disconnect DMM test lead (+) from test
adapter TEST POINT 7.
Set test adapter 28 V: ON.
f. Wait for 30 seconds.
g. Set DMM to 20 V dc scale.
Connect DMM test lead (+) to test adapter
TEST POINT 9.
h. Press battery tray switch (S1).
i. Disconnect DMM test leads from DMM and
test adapter. Connect Jumper from test
adapter TEST POINT 10 to TEST POINT 9.
Press battery tray switch (S1).
j. Disconnect jumper from test adapter TEST
POINT 10 to TEST POINT 9.
Connect W1 cable to DMM.
k. Disconnect W1 cable from DMM. Connect
test leads to DMM. Connect (+) test lead to
test adapter POWER +. Connect (-) test
lead to test adapter POWER -.
l. Adjust power supply for output voltage
of 2.0 V dc (1.5 to 2.5 V dc. Read DMM.
m. Disconnect test leads from DMM and test
adapter. Connect W1 cable to DMM.
Set DMM to 20 V dc scale. Read DMM.
n. Operational Check is complete.
a. No response.
b. No response.
c. DMM reading is greater than 200 W.
If not, the battery tray CCA (12A1A1) is
bad.
d. No response.
e. Battery tray lamp (DS1) does not light.
If it does, go to chart 1.
f. DS1 lamp is still not lit. If it is, the
battery tray CCA (12A1A1) is bad.
g. DMM reading is 14 to 16 V dc.
If not, go to chart 2.
h. DS1 lamp lights. If not, go to chart 3.
i. DS1 lamp does not light. If it does, the
battery tray CCA (12A1A1) is bad.
j. DMM reading is 14 to 16 V dc.
If not, the wire from battery tray CCA-
E16 to J1-E, or connector J1, is bad.
k. No response.
l. DMM reading is 1.5 to 2.5 V dc.
m. DMM reading is -0.1 to +0.1 V dc. If not,
the battery tray CCA (12A1A1) is bad.
15-5
|
