Hitachi W 6V4, Технические данные и руководство по обслуживанию

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3) Low noise
A new fan developed by the 3-D digital analysis technology is adopted. Thanks to the optimized air passage,
the noise level of the Models W 6VM, W 6V4 and W 6VA4 is the lowest in the class. Table 2 shows a
comparison of the no-load noise level.
4) Robust aluminum gear cover and inner cover
The Models W 6VM, W 6V4 and W 6VA4 have the gear cover and the inner cover made of aluminum, while
those of the current Models W 6V3 and W 6VA3 are made of resin. This is to ensure the specified durability
and strength of the Models W 6VM, W 6V4 and W 6VA4 even under the severe environment. Table 3 shows a
comparison of the material of gear cover and inner cover.
5) 7.5 m (24.6 ft.) long cord (for U.S.A., Canada, Europe, Russia and Oceania)
The 7.5 m (24.6 ft.) long cord of the Models W 6VM, W 6V4 and W 6VA4 eliminates the inconvenience of
connecting an extension cord or carrying a cord reel in the work site.
Table 2 Comparison of the no-load noise level
Table 3 Comparison of the material of gear cover and inner cover
*: Rotational direction is R.
Maker
Model
No-load noise level* dB (A)
HITACHI
W 6VM
76 79 82
C P
Maker
Model
No-load noise level* dB (A)
HITACHI
W 6V4
76
W 6V3
79
78
79
C
B
Maker
Model
No-load noise level* dB (A)
HITACHI
W 6VA4
76
78
79
C
B
82
P
W 6VA3
79
80
E
Maker
Model
Material of gear cover and inner cover
HITACHI
W 6VM
Aluminum
C
Aluminum
P
Plastic
Maker
Model
Material of gear cover and inner cover
HITACHI
W 6V4
Aluminum
C
Aluminum
B
Plastic
P
Aluminum
W 6V3
Plastic
Maker
Model
Material of gear cover and inner cover
HITACHI
W 6VA4
Aluminum
C
Aluminum
B
Plastic
E
Aluminum
W 6VA3
Plastic