11
GB
Engine Drive Pully
9500 r/min ± 500 r/min
= between 3930 and
4370
r/min
Wheel Speed
Abrasive Wheel Types and Uses
HITACHI Reinforced Wheels
HITACHI Wheels are labeled for the type of materials they are designed to cut.
The types of wheels identifi ed below, and other types, may be available from HITACHI dealer.
Labeled Application
Prim Use
Other Uses
Dry or Water Flush
Metal
General purpose mild and
stainless steel: re-bar, pipe
and structural steel
Aluminum and soft
brass. Does not cut
non-metals very well
Dry
Ductile
Ductile or cast Iron and
concrete lined pipe
AII except very hard
metals
Dry. Does not cut well
when wet
Rail Track
Heat treated, wear hardened
and alloyed steel
Not for non-metals
Dry
Masonry
All masonry, concrete and
stone products and asphalt
Not for metals
Constant Water Flush
or Dry
Diamond Wheel
Rock, block, stone, tile
Not for metal or
reinforced concrete
Dry
The speed rating printed on these reinforced wheels could range from 4000
to 4400 r/min. This is the minimum acceptable wheel speed rating for this
unit. Wheels rated less than 4400 r/min must not be used on this cutter.
Read Label on The
Wheel
Maximum Allowable Wheel Speed
The wheel rotates at the same speed as the spindle (arbor) on which it is
mounted. The wheel must never be allowed to rotate faster than 4400 r/min
if the wheel speed is rated at 4400 r/min. (See “Engine Speed and Wheel
Speed”, below.)
Engine Speed and Wheel Speed
Since the reduction ratio of the engine drive pulley to the large driven pulley
is about 2.3 to 1.
The unit has a governor system designed to govern the engine high speed,
at no load, to within 500 r/min of 9500 r/min, at which the wheel speed
should range between 3930 and 4370 r/min. – safety inside the 4400 r/min
limit. If the engine exceeds this speed limit, take it to your nearest HITACHI
servicing dealer for service.
Wheel Speed Rating
CM14E̲WE̲all.indb 11
CM14E̲WE̲all.indb 11
2008/02/05 21:09:31
2008/02/05 21:09:31
