Manual

12
BATTERY MAINTENANCE
The unit is equipped with a standard nickel–metal–hydride (Ni-MH) battery pack. Refer
to the Replacement Parts section for details.
Charging Batteries
CAUTION: Charge batteries in temperatures ranging between 50°F and 104°F
(10°C - 40°C). Charging batteries outside this temperature range may cause
permanent damage to the batteries.
Whenever the Constant Power Indicator LED appears red, and/or the True Battery
Voltage test shows only the red LED, the batteries must be recharged.
To recharge the batteries:
1. Plug the charging unit into an appropriate wall outlet, and connect the charger jack
to the unit (see Fig. 3, page 5).
MAINTENANCE
6. Verify an apparent leak as follows:
a) Blow shop air into the area of the suspected leak. Repeat the check of the area. In
cases of very large leaks, blowing out the area with shop air often helps locate the
exact position of the leak.
b) Move the probe to fresh air and reset. Then hold the probe tip as close as possible
to the indicated leak source, and slowly move around it until the leak is confirmed.
Automotive A/C Systems Only
7. Leak test the evaporator core in the air conditioning module by turning the air
conditioning blower on high for a period of 15 seconds minimum, shutting it off, and
then waiting for 10 minutes for the refrigerant to accumulate in the case.
Then insert the leak detector probe into the blower resistor block or condensation
drain hole, if no water is present, or into the closest opening in the heating/
ventilation air conditioning case to the evaporator, such as the heater or vent duct. If
the detector alarms, a leak apparently has been found.