Replacement Parts - Marshalltown QLT SPRAYMATE HG692 Instructions D'utilisation

Refer to the illustration for part numbers and proper assembly. Replacement parts may be ordered individually,
or are available in the No. 794A Repair Kit.
The No. 794A Repair Kit contains the orifice plate, knurled nut, center knob, mixture nozzle, and rubber boot.
When re-assembling the gun, use silicone sealant* between the housing halves to prevent the spray
material from leaking to the trigger mechanism.
*Not included—Purchase separately.
A few general statements should be noted:
1. Always read and follow manufacturers' mixing instructions. If not specified in those instructions, the
compound should be thoroughly mixed, free of lumps, and be the consistency of pancake batter.
2. Always set your pattern on scrap sheetrock before spraying your finished product. Note the compound
consistency, orifice size, air pressure at the compressor, relative ball valve position, and trigger setting for
future reference.
3. The more open the trigger; the more material will be applied with a resulting coarser pattern.
4. The higher the air pressure, the finer the pattern; the lower the air pressure, the coarser the pattern.
5. The higher the air flow, the finer the pattern; the lower the air flow, the coarser the pattern.
6. Larger orifice openings will produce a coarser pattern than will a smaller opening.
Of the three most popular patterns – orange peel, knockdown, and popcorn – orange peel and knockdown
generally apply to walls while popcorn aggregate is a ceiling finish.
To apply orange peel: select the second smallest opening (#6) in the orifice plate, set the trigger so that the end
of the air nozzle is approximately 1/4" (6 mm) from the orifice plate. Air pressure should be at least 30 psi. Again,
before spraying the finished product, check for the desired texture on a scrap piece of sheetrock.
To apply knockdown: also referred to as splatter, change the orifice plate to the middle opening (.315"/8.0 mm
dia.) (#4), set the trigger fully open. The air pressure should be at least 20 psi. Again, before spraying finished
product, check for the desired texture on a scrap piece of sheetrock.
To apply popcorn: ceiling texture, use one of the largest openings (#1, 2, or 3). Which one will depend on the size
of the acoustic aggregate. The trigger setting should be fully open. The air pressure should be at least 20–25 psi.
NOTE: The textures described above are made using either a 3/8" or 1/2" I.D. hose. If you are using a 1/4" I.D.
hose, use greater air pressures than specified.
WS1787
104 S. 8th Ave. Marshalltown, IA Phone 800-888-0127 / 641-753-0127 • Fax 800-477-6341 / 641-753-6341 www.MARSHALLTOWN.com

REPLACEMENT PARTS

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