Product Manual

10
CSG-680
Prim Use
General purpose mild and
stainless steel: re-bar, pipe
and structural steel
Ductile or cast Iron and
concrete lined pipe
Heat treated, wear hardened
and alloyed steel
All masonry, concrete and
stone products and asphalt
Rock, block, stone, tile
Engine Drive Pully
9500 r/min ± 500 r/min
= between 3930 and
4370 r/min
Wheel Speed
Abrasive Wheel Types and Uses
ECHO Reinforced Wheels
ECHO Wheels are labeled for the type of materials they are designed to cut.
The types of wheels identified below, and other types, may be available from ECHO dealer.
Labeled Application
Metal
Ductile
Rail Track
Masonry
Diamond Wheel
Other Uses
Aluminum and soft
brass. Does not cut
non-metals very well
AII except very hard
metals
Not for non-metals
Not for metals
Not for metal or
reinforced concrete
Dry or Water Flush
Dry
Dry. Does not cut
well when wet
Dry
Constant Water Flush
or Dry
Dry
Wheel Speed Rrting
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 saw.
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 ECHO servicing
dealer for service.