--- 23 ---
B. Suggestions and precautions for the efficient use of the charger and storage batteries
If any of the storage batteries is exposed to direct sunlight for an extended period or if the temperature of the
battery is high immediately after it has been used in the tool, the pilot lamp (red) or the charge time lamp may not
be turned on when the battery is connected to the charger. Chargeable temperature ranges of each type of
battery are specified as follows.
< UC 24YFA>
Type EB 1820L: from -5
û
C to 60
û
C (from 23
û
F to 140
û
F)
Types EB 1826HL and EB 1830HL: from 0
û
C to 45
û
C (from 32
û
F to 113
û
F)
< UC 14YFA>
Type EB 14B: from -5
û
C to 60
û
C (from 23
û
F to 140
û
F)
Types EB 1426H and EB 1430H: from 0
û
C to 45
û
C (from 32
û
F to 113
û
F)
< UC 24YJ>
Type EB 1830HL: from -5
û
C to 50
û
C (from 23
û
F to 122
û
F)
In such a case, the customer should be advised to place the battery in a shaded area with a good airflow, and
allow sufficient cooling before recharging. This phenomenon is common to all existing batteries that employ a
thermostat. The cooling time required before charging varies from a few minutes to about 30 minutes, depending
on the load, duration of use, and ambient temperature.
9. REFERENCE MATERIALS
9-1. Speed Control Mechanism
Spindle rotation speed of the Models DV 18DMR and
DV 14DMR can be controlled by simply varying the amount
by which the trigger switch is depressed. The relationship
between the amount the trigger switch is depressed (in
millimeters) and the rotation speed is illustrated in Fig. 2.
NOTE: The gradient and values illustrated in Fig. 2 are
intended for reference only, and will vary slightly
due to differences in the discharge condition of
the battery, the ambient temperature, and
individual speed-control element accuracy.
Fig. 2
