Clarke Ranger 25A Instructions d'exploitation télécharger pdf (Page 12)

4. SPRAY GUN MAINTENANCE

1. Immerse only the front end of the gun until solvent just covers the fluid

connection.

2. Use a bristle brush and solvent to wash off accumulated paint.

3. Do not submerge the entire spray gun in solvent because:

a. the lubricant in the gland packings will dissolve and the packings will dry

out.

b. the lubricant will dissolve causing harder operation and faster wear.

c. residue from dirty solvent may clog the narrow air passages in the gun.

4. Wipe down the outside of the gun with solvent dampened rag.

5. Lubricate gun daily. Use a light machine oil on:

a. fluid needle packing.

b. air valve packing.

c. fan control packing.

d. trigger pivot point.

Coat the fluid control spring with vaseline.

Caution: Never use lubricants containing silicone as this may cause finish defects.

For a professional looking finish paint must be thinned. If the manufacturers

recommendations on thinning are not available, the following can be used as a

general guide: Water based paints (emulsions) - 10-20% water

Oil based paints (gloss) - up to 10% white spirit thinners

Cellulose paints - up to 50% cellulose thinners

3. HANDLING THE GUN

The first requirement for a good resultant finish is the proper handling of the gun.

The gun should be held perpendicular to the surface being covered and moved

parallel to it. The stroke should be started before the trigger is pulled and the

trigger should be released before the stroke is ended. This gives accurate control

of the gun and material.

The distance between gun and surface should be 6 to 12 inches depending on

material and atomizing pressure. The material deposited should always be even

and wet. Lap each stroke over the preceding stroke to obtain a uniform finish.

NOTE: To reduce overspray and obtain maximum efficiency, always spray

with the lowest possible atomizing air pressure.

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Clarke Ranger 25A Instructions d'exploitation Page 12