Hitachi C 9U2, Service Manual

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4-1. Selling Point Descriptions
(1) Compact and light weight
Catalog
weight
Maker
Model
* Measured
weight
kg
kg
HITACHI
C 9U2
B
HITACHI
C 9BU2
C
6.8
6.7
6.9
7.3
6.8
6.7
7.0
6.8
The Models C 9U2 and C 9BU2 are most lightweight in each category as shown in Table 1.
(2) Unique design
Ease of operation is sufficiently considered in designing the Models C 9U2 and C 9BU2 including the handle
location and shape. These Models are uniquely designed through the richly used elastomer. The elastomer
used at the handle makes each model easier to operate.
(3) Low noise and vibration
In the Models C 9U2 and C 9BU2, the ball bearings at the front and the back of the motor are supported by
rubber parts and a highly efficient, low-noise and small-diameter fan is adopted. The noise level and the
vibration level at start-up and no-load operation are reduced thanks to the above.
(4) Electric brake (Model C 9BU2 only)
The Model C 9BU2 is equipped with the electric brake function that is well-reputed in the conventional model.
The rotation of the motor is braked upon turning off the switch and stopped in a shorter time than the case of a
circular saw without braking function. Thus the Model C 9BU2 can quickly start the next work.
(5) PTFE coating base for smooth sliding of workpieces (Model C 9BU2 only)
When the operator pushes the circular saw forward during cutting, the pushing force is partially compensated
by friction with the workpiece. The PTFE coating base can reduce such a compensated force because the
frictional resistance is low. As a result, workpieces can be cut smoothly.
(6) Powerful motor
Table 2. Comparison of power input/measured weight ratio when using 9" dia. saw blade
Table 1. 9" circular saw weight comparisons (* measured weight excludes cord, guide and saw blade)
Power
input
* Measured
weight
W
kg
HITACHI
C 9U2
B
HITACHI
C 9BU2
C
2000
6.7
1700
7.3
2000
6.7
2000
6.8
Input/
weight
W/kg
299 233 299 295
The Models C 9U2 and C 9BU2 are superior to competitors concerning power input values in each category
as shown in Table 2. The power input/measured weight ratio obtained by dividing the power input by the
measured weight is also superior to competitors. The Models C 9U2 and C 9BU2 are well-balanced circular
saws.
Maker
Model