Operating Manual
STI-2420 | STI-2418LP
23
5. Turn the ignition key.
6. Once the digital display reads 2,000 RPM, push the Rocker Switch.
7. Immediately begin moving the machine from side to side to prevent the tools from
digging into the concrete surface and creating an uneven profile. For the operation of
the running machine, it is necessary to move the machine from side-to-side to create an
even profile that is consistent in flatness and profile.
8. Throttle up to the desired speed.
9. When grinding in work area is complete, throttle down to 2,000 RPM and push the
Rocker Switch.
10. Turn off ignition key and fuel supply.
11. The dustbin of the filter unit needs regular dumping.
Do not overfill the bin to avoid dust exposure when opening the bin. Comply with the
local waste treatment regulations considering the removed material.
6.0 Operation
6.1 Daily Operation
6.2 Failure
6.3 Safety Switch Off
6.4 Restart
6.1
Daily Operation
Normal start-up and operation of the Grinder is not different as has been described in
Chapter 5—Initial operation.
Carry out grinding operation in parallel tracks in a way that the dust hose and electric cable
do not become twisted.
The speed of moving the grinding machine over the work surface will influence the final finish
and production.
In the case that the surface shows different characteristics, means different hardness or
different coating thicknesses, a uniform grinding result will be achieved by varying the speed
of movement over the surface.
