4
1. Introduction
Before use, operators must be provided with information, instruction and training for the use of the machine
and the substances for which it is to be used, including the safe method of removal and disposal of the
material collected. All persons who are working with or maintaining this machine must read the manual
carefully and understand it fully. In case you sell the unit, hand it on to the next owner.
Keep this manual always with the machine, to enable it to be referred to at any time.
Any other work not covered by this operating manual must not be carried out. Always use common sense
when working with machines.
This machine is designed for industrial use by professionals. Only authorized and trained personnel may
operate this machine. This machine is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge.
Blastrac BV
offers a course on
the use of the machine in order to make the operating and maintenance personnel familiar with all elements of
the machine.
Always read the enclosed OWNER’S MANUAL of the Hatz diesel engine before operating the
machine.
The OWNER’S MANUAL contains important information about getting the best performance and safe operation
/ maintenance of the diesel engine.
The OWNER’S MANUAL should be considered a permanent part of the engine and should remain with the
engine if resold.
2. Machine description
The Blastrac multisaw machine BMC-335 can be supplied with a 400 Volt electric motor (EHY) or with a
combustion engine (GHY), where you can mount a different quantity of saw blades underneath. By changing
the pulleys and the belt, the machine can also be used as a scarifier. The manufacturer will not be liable for
damage resulting from incorrect usage, in these cases the user assumes all risks.
The machine is sealed around which makes the use almost dust free when connected to an appropriate
Blastrac dust collector. Due to the fine adjustment and the possibility to lock the height adjustment, the depth
of cutting can be set very precisely, and the same saw depth can be maintained.
Intended use:
The multisaw machine is extremely suitable for removing hard top layers from soft floors or to remove the top
layer from “floating” floors and/or “computer” floors.
Sawing is a very fast process. Ideal for removing several millimeters from a concrete floor preparing it to be
polished up to the stones without using an extra scarifier.
The BMC-335 can be used during sawing in the forward or backward driving direction.
Driving in reverse direction while sawing will give a more uniform surface.
Driving in forward direction while sawing will allow more speed since it is less hard for the motor.
NEVER use the BMC-335 as a scarifier without the proper modifications.
The machine must first be converted into a BMP-335.
This is possible by changing the belt and the pulleys. (See chapter 6.4)
If the multisaw machine is converted to a scarifier, it can be used, with the appropriate cutters, for the
following applications;
To roughen concrete
To clean most horizontal surfaces
To remove coatings
To corrugate concrete surfaces
To remove road markings
To make non-slip surfaces
The force of impact of a cutter is controlled by the depth adjustment. With the right depth adjustment, the
best performance is obtained to give a desired result.
