Spray Tip Selection; Regular Maintenance - Allpro 400E Operations Manual & Parts List

SPRAY TIP SELECTION

Spray tip selection is based on paint viscosity, paint
type, and job needs. For light viscosities (thin paints),
use a smaller tip; for heavier viscosities (thicker paints),
use a larger tip size.
PATTERN WIDTH
Thickness of the paint coat per stroke is determined by
spray tip "fan width", rate of the spray gun movement,
and distance to surface.
SPRAY TIP SELECTION
Two tips having the same tip size, but different pattern
widths will deliver the same amount of paint over a
different area (wider or narrower strip).
A spray tip with a narrow pattern width makes it easy to
spray in tight places.
Use only good quality, high pressure tungsten carbide
spray tips.

REGULAR MAINTENANCE

1. Keep the displacement pump packing nut/wet cup 1/3 full of TSO (Throat Seal Oil) at all times. The TSO
helps protect the packings and rod.
2. Inspect the packing nut daily. Your pump has a patented Triple Life Packing System. Packing life will be
extended a minimum of three times if the following "Packing Tightening" procedure is followed:
Inspect the packing nut daily. If seepage of paint into the packing nut and/or movement of
the piston upward is found (while not spraying), the packing nut should be tightened enough
to stop leakage only, but not any tighter. Overtightening will damage the packings and reduce
the packing life.
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Spray tip size is based on how many gallons of paint
per minute can be sprayed through the tip. Do not use
a tip larger than the maximum pump flow rate or capac-
ity the sprayer can accommodate. Pump flow rate is
measured in gallons per minute (GPM).
* Larger Sizes Available
NOTE: For materials requiring larger than a
.021 tip, refer to Manufacturers label specifications.
SPRAY TIP REPLACEMENT
During use, especially with latex paint, high pressure
will cause the orifice to grow larger. This destroys the
pattern.
Replace tips before they become excessively worn.
Worn tips waste paint, cause overspray, make
cutting-in difficult, and decreases sprayer performance.