Operating Procedure - Matco Tools MC9640 Manual

OPERATING INSTRUCTIONS: CHARGING
21.
•
SLOW BLINKING RED LIGHT - Indicates possible weak bat-
tery.
•
FAST BLINKING RED LIGHT - Battery is connected back-
wards, check connection.
•
CONTINUOUS RED LIGHT - Indicates AC power is on when
connected to a battery or if the Dead Battery Override switch is
pressed.
•
CONTINUOUS GREEN LIGHT - Indicates correct connection.
If the battery is connected, GREEN LIGHT does not light, check
for proper polarity or poor connections. If the battery voltage is
below 4 volts, the GREEN LIGHT will not come on.
•
CONTINUOUS YELLOW LIGHT - Indicates charging, bulk
charge, less than 80% charged.
•
BLINKING YELLOW LIGHT - Indicates finish charge, greater
than 80% charged.
•
FLASHING GREEN AND YELLOW LIGHTS - Flooded batter-
ies only, indicates deep discharge recovery process.
NOTES:
FOUR SECOND DELAY - To avoid the sparking, the charger tests
for correct polarity before applying current to the battery. When con-
nected properly, the green light will come on for 4 seconds before the
yellow light comes on.
DEEP DISCHARGE RECOVERY - If the charger determines a bat-
tery is deeply discharged, it will attempt to recover the battery with a
program designed to enhance charge acceptance. Because of the
high voltage levels required for recovery, this program is not included
for sealed batteries.

OPERATING PROCEDURE

a. Plug AC cord into outlet. Turn POWER switch ON. RED light will
come on.
b. Select mode of operation Flooded or Sealed/GEL. Most VRLA would
be charged with flooded, see battery manuals for details, if in doubt
charge with sealed.
c. Connect the RED clamp to the positive (+) and the BLACK clamp to
the negative (-). The GREEN light will come on for 4 seconds. See
PREPARING TO CHARGE section under IMPORTANT SAFETY
INSTRUCTIONS of this manual.
d. The YELLOW light will come on when GREEN light goes off and
charging will begin.
e. If the battery is deeply discharged, the YELLOW and GREEN lights
will flash on and off for up to 30 minutes in flooded setting.
f. Charging will be discontinued if the battery will not accept charge
after a reasonable amount of time and the RED Light will flash.
g. Charging time will depend on the size and state of charge of the
battery.
h. When charging is complete, GREEN light will come on.
NOTES ON RECOVERY OF DEEPLY DISCHARGED BATTERIES:
a. Not all deeply discharged batteries can be recovered.
b. Most weak batteries will be detected while charging. However,
some batteries which have been recovered from a deep discharge
will maintain an acceptable open circuit voltage but have a reduced
capacity under load. Always load test or otherwise test a recovered
battery to determine if the CCA capacity is within 80% of the rated
value.
DEAD BATTERY OVERRIDE
If the battery voltage is below 4V the battery charger will not recognize
that it has been connected to a battery. Most batteries even if completely
discharged will recover to a voltage greater than 4V, but if battery is left in
a discharged state for an extended period of time the voltage may fall
below 4V. This charger has equipped with DEAD BATTERY OVERRIDE
SWITCH; this can be used to start the charger if the battery is below 4V.
027-1063 Rev. 20190321
12V SMART BENCH TOP CHARGER
OPERATION:
22.
3
a. Connect the deeply discharged battery to charger, battery should be
placed as far away from the charger as the cables will allow (See
Section 17). Please ensure that the battery is connected with correct
polarity.
b. Press and hold the override switch; GREEN LED should light, if mon-
itoring the battery voltage should see it rise.
CAUTION: Never press the override switch without a battery con-
nected.
c. After several seconds release the override switch, if the battery will
accept a charge it should now start charging. For best results, the
Battery Type switch should be set for flooded. If the battery is a
sealed type; the Battery Type switch can be changed after the bat-
tery has reached the gassing point (Yellow LED start to flash).
d. The battery may have to be connected to the charger several times
before the charger will not fail the battery as a bad battery (Red LED
flashing). NOTE: The operator should only need to press the
override for the first attempt to recover the battery.
OPERATING INSTRUCTIONS: REFLASH POWER
MODE
GENERAL OPERATION:
With AC CORD plugged into an outlet the RED LIGHT will be on
continuously.
a. For the best results, the battery should be fully charged before being
used with Reflash Power Mode.
b. Set the selector switch to the REFLASH POWER MODE setting
(center).
c. Connect the RED clamp to the battery positive (+), connect the black
clamp to the grounded frame of the vehicle (See Section 16 on
charging batteries installed in vehicle), in the unusual case that the
vehicle has a positive ground, connect the black clamp to the battery
negative post (-) and the red clamp to the chassis.
d. When the charger detects the battery, voltage is present the GREEN
LIGHT will light for 4 seconds. The YELLOW LIGHT will come ON
and the unit will start to ramp up the DC current. When the charger
reaches the safe operating level the YELLOW LIGHT will start to
blink.
e. The unit will not shut off. It will maintain the voltage within its capabili-
ties until the unit is turned off.
f. If the voltage should fall below the specified level the YELLOW
LIGHT will return to continuously ON. If the unit cannot maintain the
voltage level for more than 20 seconds, then RED LIGHT will start to
flash. At this point the unit is supplying maximum output and the
battery voltage should be monitored to make sure it does not drop
below minimum levels required for testing and/or programming.
MC9640
1903091-11