TM 11-6130-392-12
Records and reports of preventive maintenance must be
d. Deficiencies that cannot be corrected must be re-
made in accordance with procedures given in TM 38-750.
ported to higher category maintenance personnel.
Section III. OPERATOR/CREW PREVENTIVE MAINTENANCE CHECKS AND SERVICES
b. Perform weekly as well as before operation PMCS if:
3-4. Preventive Maintenance Checks and
(1) You are the assigned operator and have not
Services
operated the item since the last weekly.
a. The operator/crew preventive maintenance checks
(2) You are operating the item for the first time.
and services are listed in table 3-1.
Table 3-1. Operator/Crew Preventive Maintenance Checks and Services
NOTE
The checks in the interval column are to be performed in the order listed.
A --After Operation
M --Monthly
B- Before Operation
*D- During Operation
W --Weekly
Interval
--
Item To Be Inspected/
Item
W
Procedure
M
D
A
No.
B
--
--
--
*
BATTERY CHARGER EQUIPMENT CASE
1
a. Check for dirt and moisture on case.
b
Check for damage to equipment use, humidity indicator, pressure relief valve, latches, and handles. If there
IS damage notify next higher level of maintenance.
*
BATTERY CHARGER
2
a.
Check that unit is complete.
b.
Check for dirt and moisture on unit.
c.
Check + and contacts on battery holders for damage or dirt
d.
Using a soft clean cloth, Wipe dirt and moisture from battery charger.
e.
Clean battery charger as described m paragraph 3-6.
Check for damage to controls, battery holders, panel meter, and jacks.
f.
Check power cord for cuts or damaged connector.
g.
h.
inspect battery charger for rust and corrosion. If these conditions exist, refer to a higher level maintenance
for repair.
i.
Check INPUT VOLTAGE switch on back of charger for damage and that switch is in either 115V or 230V
position depending upon power source being used.
Check that SPARE fuse holders on back of charger contain I amp fuses,
j.
k.
Check that POWER ON indicator lights when POWER ON-OFF switch is set to ON with power cord con-
nected to power source Replace lamp, if burned out, as described in paragraph 3-5, b.
l.
Set VOLTAGE TEST SELECT switch to Bl and press VOLTAGE TEST pushbutton. Panel meter should
indicate 700 mA.
m. Set power ON-OFF switch to ON, turn thumbwheels of SET CHARGE TIME control to 10.0, then press
START TIME switch Display should light to show number 10.0. Set power to OFF.
n.
Repeat m, but set SET CHARGE TIME control to 09.0; check that display is same.
Repeat m., but set SET CHARGE TIME control to 00.9; check that display is same.
NOTES:
* Make this check right after all batteries being charged are in battery holders and/or connected to REMOTE BATTERY
jacks and POWER ON-OFF switch is set to ON.
Section IV. OPERATOR/CREW MAINTENANCE
3-5. Troubleshooting
The troubleshooting chart, table 3-2 is for failure indications as noticed during normal operation and preventive mainte-
nance checks of the battery charger. Any malfunction that is beyond the scope of the operator to correct shall be referred to
Organizational maintenance.
Table 3-2. Troubleshooting Chart
Malfunction
Probable Cause
Connective Action
1.
a. Power cord not plugged into power source.
POWER ON indicator light does not light
a. Plug power into power source.
when POWER ON-OFF switch is set to
b. No power source
b. Check input power source and change
ON or goes out during operation of bat-
fuses.
tery charger.
c. Indicator lamp is burned out.
c. Replace lamp.
VOLTAGE TEST SELECT control in B1
Weak or missing memory battery (B1).
2.
Replace battery.
position with VOLTAGE TEST-CHG
3-2
