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7700 CUTTING HEAD & BLADES
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 setting). 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 angle. 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.
STEEP CUTTING HEAD ANGLE
A steep angle is only used for re-scraping. The slide plate has to be raised so the bottom of the slide
plate is higher or even with the bottom of the guide channels (Figure A). Not raising the slide plate when
operating the machine at a steep angle will cause the machine to jump and buck. It does not give the
operator a clear vision of the cutting head and it raises the machine to operate at a unsafe operating
height (Figure B). Failure to raise the slide plate could cause machine damage and/or bodily injury.
SWIVEL HEAD
The swivel head keeps the blade in contact with the floor even when the floor is uneven. When using a
flat blade, by swiveling the head over 180° allows another sharp edge on the blade without having to
replace the blade.
SAVING TIME WITH EXTRA CUTTING HEADS
The machine is supplied with one cutting head. Having additional cutting heads will save time on the job.
Insert blades into the extra cutting heads before starting a job. When the blade is dull, instead of taking
the time to replace it or sharpen it on the job, take out the cutting head and replace it with another. Or,
when a different type or size of blade is needed, you have them ready to use.
Figure A
Figure B
Correct slide plate setting with a steep
cutting head angle.
Incorrect slide plate setting with a steep
cutting head angle.
Slide plate is raised
Slide plate is not raised
CAUTION:
Watch out for obstructions in the floor (ie. expansion joints, nails, bolts, receptacles).
They will break blades.
Summary of Contents for All Day Battery Ride-On 7700
Page 1: ......
Page 75: ...Page 75 7700 MACHINE WIRING 7700 AUS MACHINE WIRING ...
Page 76: ...Page 76 7700 BATTERY WIRING ...
Page 77: ...Page 77 7700 SEAT WIRING ...
Page 84: ...Page 84 7700 BATTERY MATERIAL SAFETY DATA ...