• Removing mastics, paints, resins, tar, fiberglass, ice and industrial buildups

• The grinder should always be moved in a side to side motion when grinding. By doing so, you eliminate many of the swirl marks that are created.
• Weight helps with the grinding process as it allows the accessories better contact with the surface. The single-disc grinder’s max weight is 50 lbs for the electric model. The dual-disc grinder’s max weight is 100 lbs for the electric model.
• The grinder is designed for wet or dry grinding.
• Dry grinding is preferable because the accessories constantly are in contact with the surface.
• When wet grinding, water is only needed to control dust and does not act as a coolant. Lightly dampen the floor or use a fine mist to control dust. Excess water will only create clean up problems.

Scarifiers can do a variety of surface preparation jobs including cleaning warehouse floors, texturing surfaces for adhesion of coatings, leveling sidewalks and uneven joints, grooving parking decks and removing traffic lines, paint and coatings.

 

1. Open throttle, let the engine reach full speed
2. Lower "disengage lever" slowly. With "disengage lever" in full down position, cutter wheels should not be in contact with slab. Turn "depth adjustment crank" down until cutter wheels contact and begin to penetrate the slab. Continue turning slowly until desired depth of cut is reached. Depth of cut is predetermined by the job specifiations.

Production rates are determined by material to be removed, hardness of slab and type of cutter being used.

To achieve a greater depth, it may be necessary to make several passes ober the same area. Cutter wheels will jam if you try to remove too much material in one pass. Wheels will raise from the surface and the front will ride on the drum flanges. This will cause severe damage to equipment and cause cutters to flatten or break. Remove less material with more passes will save you time and money in the long run.

To keep your scarifier running at maximum efficiency, make sure to keep the drum balanced so the opposite shafts are set up identically. An unbalanced drum will cause excessive wear on bearings, frame and shaft. If there is excessive vibration or if you have doubts about how hard you are pushing the scarifier, stop working and inspect the shaft and cutters for undue wear.

Here are four ways to modify scarifying results:

1. Control the forward speed of the scarifier
2. Vary the speed the drum is turning
3. Vary the spacing and the type of the cutters
4. Adjust the depth you are cutting at

1. Raise the disengage lever
2. Reset the throttle to idle
3. Turn the ignition switch off