CLEANING OF MACHINE
At the end of the day, or when changing from one material to another, the machine should be washed out. It is also suggested that when pumping quick setting materials to wash out machine and hoses approximately every 4 hours.
To clean the hopper and pump parts, run transmission in reverse gear to relieve back pressure in hose, turn off engine, remove spray gun and disconnect material hose. Remove pipe plug at bottom of hopper, drain, and wash down the remaining material with water. Replace plug.
After the material has been washed out of the hopper, the hose can be cleaned by disconnecting the material hose from the machine and removing the spray gun. Roll up a wet sponge and place it into the material hose, reconnect the hose to pump fitting, fill hopper half full with water and start machine.Pump enough water through hose to push sponge through entire length of hose. After sponge is pumped out, turn off engine and remove drain plug from hopper to drain remaining water. Repeat the sponge process if necessary.
Wash out spray gun, nozzle and orifices. Hose down screens and the outside of the machine.
Note: When washing down the outside of the machine, be sure the rubber boot is in place over the transmission lever pivot. This prevents water from entering the transmission. Clean and oil all threads and joints.
MIXING AND APPLYINGVARIOUS MATERIAL
EXTERIOR DASH STUCCO
In areas where this type of finish is popular, a prepared machine mix is available which requires only the addition of water. however, some contractors prefer to mix their own material.The following is considered a very satisfactory machine mix:
200 lbs. — Silica sand mo. 20
50 to 60 lbs. — Hydrated lime
100 lbs. — Plastic cement
2 to 3 lbs. — Zonolite finish aggregate
Color may be added as desired, but should be measured for uniformity.
The above materials must be thoroughly mixed and of a thin consistency, similar to a hand dash coat mix.
FM-9 — OPERATIONS
The surface to be sprayed should be thoroughly dry. Do not wet before applying dash coat. Use either a 1/4" or 3/8" orifice. Be sure a soft rubber stator tube is used, as soft rubber will resist abrasives. After material is mixed, proceed as explained in the operating instructions. Adjust volume at low speed and air pressure to
SIMULATED ACOUSTIC CEILINGS
In many areas prepared materials are available for simulated acoustic ceilings. In areas where prepared materials are not available and where a contractor prefers to mix his own, the following mix makes a satisfactory texture.
100 lbs. — Gypsum
6 cu. ft. — Vermiculite or perlite
Mix the above materials thoroughly so the aggregate does not separate when in hopper. This mix should be of heavier consistency than exterior dash, but still wet enough to pass through a 3/8" screen.
If the material aggregate is made of vermiculite, use the hard rubber stator. If the material is made of perlite, the soft rubber stator should be installed. By using a 3/8" orifice and adjusting the volume at second speed and the air pressure to
Since the finished appearance depends on the condition of the original surface, it is suggested that any obvious defects, such as ridges or holes, should be repaired with a hand trowel also, the ceiling should BE scraped with a floor or wall scraper prior to spraying the first coat.
Care should be taken when spraying the ceilings to fill the angles well. This can be achieved by pointing the nozzle directly into the angle, thereby spraying on the wall as well as on the ceiling. The overspray on the wall can be quickly removed by using the same scraper mentioned above.
You will find that a better job can be accomplished if two coats are applied. But before applying the second coat, an inspection of the surface should be made and any defects should be repaired with a small trowel. After the inspection, the second coat can be immediately applied.
PAGE 8 — ESSICK FM9 — PARTS & OPERATION MANUAL — REV. #1 (03/12/01)