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Vi. maintenance, Vii . tightening torque, Factors affecting tighten- ing torque – Panasonic EY75A2X User Manual

Page 16: Bolt tightening conditions

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VI. 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.

• In the event that the inside of the tool or

battery pack is exposed to water, drain
and allow to dry as soon as possible.
Carefully remove any dust or iron filings
that collect inside the tool. If you experi-
ence any problems operating the tool,
consult with a repair shop.

VII. 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 Tighten-
ing 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 near-
ly discharged, the voltage decreases and
the tightening torque drops.

Bolt Tightening Conditions

EY75A1 14.4 V

M10 x 35 mm M12, M14, M16 x 45 mm

Standard bolt

N

× m

(kgf-cm)

196.0

(2000)

147.0

(1500)

98.0

(1000)

49.0

(500)

0.5

0.0

1.0

1.5

2.0

2.5

3.0

M12

M14

M16

M10

T

ightening torque

Tightening time (Sec.)

EY75A1 14.4 V

M8, M10 x 35 mm. M12 x 45 mm

High tensile bolt

196.0

(2000)

147.0

(1500)

98.0

(1000)

49.0

(500)

0.5

0.0

1.0

1.5

2.0

2.5

3.0

N

×

m

(k

g

f-cm)

M12

M10

M8

T

ightening torque

Tightening time (Sec.)

EY75A2 14.4 V

M10 x 35 mm M12, M14, M16 x 45 mm

Standard bolt

196.0

(2000)

147.0

(1500)

98.0

(1000)

49.0

(500)

0.5

0.0

1.0

1.5

2.0

2.5

3.0

M12

M14

M16

M10

N

s m

(k

gf-cm)

T

ightening torque

Tightening time (Sec.)

EY75A2 14.4 V

M8, M10 x 35 mm. M12 x 45 mm

High tensile bolt

196.0

(2000)

147.0

(1500)

98.0

(1000)

49.0

(500)

0.5

0.0

1.0

1.5

2.0

2.5

3.0

M12

M10

M8

N

s m

(k

gf-cm)

T

ightening torque

Tightening time (Sec.)

EY7546_EY7547_EY7550_EY7551_US.indb 16

EY7546_EY7547_EY7550_EY7551_US.indb 16

2013-2-19 11:17:48

2013-2-19 11:17:48

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