National Flooring Equipment 8000, Руководство пользователя, Страница: 16 / 68

Machine Operation
SHEAR POINT
The shear point is the point where material to be removed will cut cleanly from the fl oor. If
the blade is too wide, too dull, or too steep, the shear point is lost.
WEIGHT VS. SHARPNESS
The most common way to compensate for a dull blade is to add more weight and raise
the blade angle (see re-scrape set up Page 19). Weight allows dull blades to be used to
a point. Weight also causes blades to dull and break easier. Blades of any thickness tend
to catch cracks and expansion joints and will bend or break the blade if set at a high an-
gle. For best results, run a small ditching blade at a low angle to identify as many cracks
and joints as possible. If blades are breaking, you are misunderstanding the conditions.
CUTTING HEAD ANGLE
Set the cutting head angle to where the material comes up the easiest. The lowest is
usually the best.
ADJUSTING THE DUAL LIFT HYDRAULIC SLIDE PLATE
For safety, prior to adjusting the dual lift hydraulic slide plate make sure the channel
guide is free of any debris and the machine is safely positioned on a
fl at surface.
To begin it is necessary to be properly seated in the operator’s seat.
Next, twist the Red Emergency Stop switch located to the right of the operator. The E-
Stop switch is spring loaded and will pop “Up” when twisted.
Push the green “On” button to start the machine.
To set the height of the hydraulic slide plate you must
fi rst adjust the angle or pitch of the
cutting head holder.
Adjacent to the left hand steering lever is a straight and narrow handle rod. This handle
rod raises and lowers the front cylinder and is commonly referred to as the “cutting head
lever”.
Next pull back on the cutting head lever and raise the cutting head holder to an angle
higher than the bottom of the slide plate; then release the lever.
There is also a straight and narrow handle rod adjacent to the right hand steering lever.
This handle rod raises and lowers the hydraulic slide plate and is commonly referred to
as the “slide plate lever”.
To lower the slide plate the operator must push forward on the slide plate lever. Reverse-
ly, to raise the slide plate the operator must pull back on the slide plate lever.
While the hydraulic slide plate can be adjusted to many different positions, there are two
basic slide plate settings.
A “low” setting has the hydraulic slide plate positioned approximately one ince off the
fl oor. This setting is most commonly used during initial scraping or removal applications;
such as carpet, VCT, ceramic tile and wood fl ooring applications.
Note: The “low” setting on older model hydraulic slide plates may stop the plate within
one to two inches of the
fl oors surface.
FIG. V
FIG. W
16
CAUTION:
NEVER CHANGE CUTTING HEAD OR SERVICE BLADES WHILE
MACHINE IS RUNNING.
WARNING:
DISARM MACHINE WHEN MACHINE IS NOT IN USE. REMOVE
THE CUTTING HEAD OR DROP CUTTING HEAD TO THE FLOOR. FAILURE TO
DO SO COULD CAUSE SEVERE BODILY INJURY.
Low Setting: Slide plate 1” off the fl oor. The lower the
better. This is for normal removal of almost everything.
High Setting: Slide plate is 6” off the fl oor. This is
for re-scraping glue and some thin-soft coatings.
www.nationalequipment.com Phone: 763-315-5300