--- 14 ---
7-2. Inherent Drawbacks of Cordless Reciprocating Saw Requiring Particular Attention During Sales Promotion
The cordless reciprocating saw offers many advantages; it can be used in places where no power source is
available, the absence of a cord allows easy use, etc. However, any cordless tool has certain inherent
drawbacks. Salespersons must be thoroughly familiar with these drawbacks in order to properly advise the
customer in the most efficient use of the tool.
A. Suggestions and precautions for the efficient use of the tool
(1) Do not insert a foreign object into body vent holes.
The body of this tool has vent holes for improving the cooling efficiency. As a fan is built into the motor, a
foreign object inserted through a vent hole may cause a failure. Please instruct customers to never insert a
foreign object into the vent hole.
(2) Avoid "Locking" of the motor.
Locking of the motor will cause an overload current that could result in burning of the motor and/or rapid
deterioration of the battery. Salespersons should advise the customer to immediately release the switch and
stop operation if the motor becomes locked.
(3) Variation in amount of work possible per charge
Although the nominal chargeable capacity of the storage batteries used with the Model CR 18DMR is 2.0 Ah,
2.6 Ah and 3.0 Ah, the actual capacity may vary within 10% of that value depending on the ambient
temperature during use and charging, and the number of times the batteries have been recharged. It should
be noted that other factors which may have a bearing on the amount of work possible per charge are the
working conditions (ambient temperature, type and moisture content of the workpiece, sharpness of the saw
blades, etc.) and operational skill of the user.
B. Suggestions and precautions for the efficient use of the charger and storage batteries
If the Model EB 1820L Storage Battery is exposed to direct sunlight for an extended period or if the tool has just
been operated for a long time, charging may not be possible if the temperature of the battery is above 60
û
C
(140
û
F). If the Model EB 1826HL/EB 1830HL Storage Battery is exposed to direct sunlight for an extended
period or if the tool has just been operated for a long time, charging may not be possible if the temperature of the
battery is above 45
û
F (113
û
F). In such a case, the customer should be advised to place the battery in a shaded
area with a good airflow, and allows sufficient cooling before recharging. This phenomenon is common to all
existing batteries and chargers which employ temperature sensitive overcharge protection devices. The cooling
time required before recharging can be accomplished varies from a few minutes to about 30 minutes, depending
on the load, duration of use, and ambient temperature.
Summary of Contents for CR 18DMR
Page 29: ......
