www.minutemanintl.com
5
31218C
10. Follow all operating instructions, cautions, and
warnings as specified in this manual, on the
charger, and in your equipment owner manual.
TROUBLESHOOTING GUIDE
To be able to troubleshoot safely and effectively,
it is important to read this guide completely
before beginning any tests.
CAUTION: DO NOT DISASSEMBLE THE
CHARGER. TAKE IT TO A QUALIFIED SERVICE
AGENT WHEN SERVICE OR REPAIR IS
REQUIRED. INCORRECT REASSEMBLY MAY
RESULT IN A RISK OF ELECTRIC SHOCK OR
FIRE. THE FOLLOWING PROCEDURES ARE
INTENDED ONLY TO DETERMINE IF A
MALFUNCTION MAY EXIST IN THE CHARGER.
DANGER: TO REDUCE THE RISK OF
ELECTRIC SHOCK, ALWAYS DISCONNECT
BOTH THE POWER SUPPLY CORD AND THE
OUTPUT CORD BEFORE ATTEMPTING ANY
MAINTENANCE OR CLEANING; TURNING THE
CHARGER OFF DOES NOT REDUCE THE RISK.
WARNING: DO NOT OPERATE THE
CHARGER IF IT IS MALFUNCTIONING.
PERSONAL INJURY OR PROPERTY DAMAGE
COULD RESULT.
To determine if a charger malfunction exists, identify
the problem from the following list and refer to the
appropriate section for detailed instructions.
1.
CHARGER DOES NOT TURN ON
2.
CHARGER FUSE BLOWS
3.
THE AMMETER NEEDLE REMAINS AT MORE
THAN 40 AMPS FOR MORE THAN 90
MINUTES
4.
CHARGER DOES NOT TURN OFF
5.
THE BUILDING AC LINE CIRCUIT BREAKER
OR FUSE BLOWS
If the problem is other than listed above, refer to a
qualified service agent for additional troubleshooting
procedures.
1.
CHARGER DOES NOT TURN ON
The AC plug must be disconnected and
reconnected to start the charger after turn off.
Test for a live outlet by connecting a light or
appliance to the same outlet.
2.
CHARGER FUSE(S) BLOW
The charger fuse assembly consists of a U-
shaped wire visible through a transparent cover,
and is mounted on the front panel. Electrical
connections to the fuse wire are soldered to the
middle and each end. Each half of the fuse wire
serves as an individual fuse link which protects
the charger in the event one or both rectifier
diodes fail, or a reverse polarity connection is
made to the batteries.
Check the fuse assembly visually for an open or
blown fuse link. If both half links of the fuse
assembly blow as soon as the DC output plug is
connected to the battery connector, the polarity
of the batteries may be reversed. If no battery
or connector maintenance has been performed
prior to the fuse blowing, the charger is
malfunctioning. If only one half link blows, the
charge rate will be low and the charger is
malfunctioning.
CAUTION: DO NOT USE THE CHARGER IF
THE OUTPUT IS LOW. BATTERIES WILL NOT
REACH FULL CHARGE, THEREBY INCREASING
THE POSSIBILITY OF A HARMFUL DEEP
DISCHARGE DURING THEIR NEXT USE.
3.
AMMETER NEEDLE REMAINS AT MORE
THAN 40 AMPS FOR MORE THAN 90
MINUTES
This high charge rate is caused by misuse. The
charger is connected to a battery pack with a
system voltage lower than or amp-hour capacity
greater than specified on the charger. If
connected to a battery system of less than 36
volts, the charge rate will not taper and decrease
to 40 amps or less within 90 minutes. This is
caused when one or more of the batteries in the
system is connected reverse polarity.
4.
THE CHARGER DOES NOT TURN OFF
New batteries or batteries charged in cold
temperatures may require an extended charge
time to achieve full charge. However, if the
charger runs for longer than the maximum listed
without shutting off, the charger is
malfunctioning. Turn the charger off by
disconnecting the input plug before
disconnecting the charging plug.
5.
THE BUILDING AC LINE CIRCUIT BREAKER
OR FUSE BLOWS
This condition can be caused by a charger
problem, a "weak" fuse or circuit breaker
protecting the circuit, or an overloaded circuit. If
the building AC power fuse or circuit breaker
blows, connect the charger to other outlets (on
different circuits) in the building. If the charger
operates properly on other circuits, have a
qualified electrician inspect and test the original
circuit. If the charger causes other fuses or
circuit breakers (in the building) to blow, the
charger should be tested for a problem.