Panasonic EY7202GQW - Manual (Page 10)

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CAUTION:
To prevent the risk of fire or damage to
the battery charger.
• Do not use power source from an
engine generator.
• Do not cover vent holes on the charger
and the battery pack.
• Unplug the charger when not in use.
IV. LAMP INDICATIONS
Red Flashing
Red Lit
Green Flashing quickly
Orange Lit
Orange Flashing
Charger is plugged into the AC outlet.
Ready to charge.
Now charging
Charging is completed.
Battery pack is warm. Charging will begin
when temperature of battery pack drops.
Charging is not possible. Clogged with
dust or malfunction of the battery pack.
V. MAINTENANCE
Use only a dry, soft cloth for wiping the unit.
Do not use a damp cloth, thinner, benzine,
or other volatile solvents for cleaning.
VI. TIGHTENING
TORQUE
The power required for tightening a bolt will
vary, according to bolt material and size, as
well as the material being bolted. Choose
the length of tightening time accordingly.
Reference values are provided below.
(They may vary according to tightening conditions.)
Factors Affecting Tightening
Torque
The tightening torque is affected by a wide
variety of factors including the followings.
After tightening, always check the torque
with a torque wrench.
1) Voltage
When the battery pack becomes nearly
discharged, the voltage decreases and the
tightening torque drops.
Bolt Tightening Conditions
0.5 1 1.5 2 3 2.5
M12
M10
M8
Tightening time (Sec.)
Tightening torque
M8.M10.M12 x 25mm Standard bolt
(Bolt size : Millimeters)
N ⋅ m
(k g f-cm)
19.6
(200)
39.2
(400)
58.8
(600)
78.5
(800)
98.1
(1000)
M8.M10.M12 x 25mm High tensile bolt
0.5 1 1.5 2 3 2.5
M12
M10
M8
Tightening time (Sec.)
Tightening torque
19.6
(200)
39.2
(400)
58.8
(600)
78.5
(800)
98.1
(1000)
117.6
(1200)
N ⋅ m
(k g f-cm)
Bolt
Nut
Washer
Steel plate
thickness10mm(3/8")
Washer
Spring washer
Tightening conditions
• The following bolts are used.
Standard bolts: Strength type 6.8
High tensile type 12.9
Explanation of the strength type
6.8
Bolt yield point
(80% of tenslie strength)
48 k � f/mm 2 (68,000psi)
Bolt tensile strength 60 k � f/mm 2
(85,000psi)