6
PUMP COMPONENTS
SPRAY GUN:
The spray gun is designed specifically for
airless spraying. Since there is no
compressed air to atomize the paint,
atomization is accomplished by forcing the
paint at a very high pressure (3200 psi)
through a very small hole (.017" diameter
for example). Because of this high
pressure, the spray tip and gun valve are
made of tungsten carbide for maximum
wear resistance. The gun body is made of
forged alloy and anodized for chemical
resistance.
As a safety feature, the spray gun can be
locked with the trigger safety lever when
you are not spraying. Be sure to read all
warnings concerning the high pressures of
airless spraying on page 3 & 4.
PISTON PUMP (DC-1600/2000/3100/
7700):
Uses two sets of packings and two check
valves in conjunction with an abrasion
resistant piston. This forms a double
acting pump; ie pumps on both up and
down stroke. Both sets of packings are
stationary, eliminating costly cylinder
wear.
SPEED REDUCER(DC-1600/2000/3100/
7700):
Consists of a two stage gear reduction in
permanent grease for long life. All
bearings are also permanently greased. It
converts the high speed output of motor
into very high torque to drive the pump.
MOTOR (DC-1600/2000/3100):
Is an industrial grade high speed unit. Its
permanent magnet DC type construction
withstands construction site power
fluctuations. The higher rpm of this motor
results in a compact and lightweight
design.
MOTOR (DC-7700):
This unit has the most technologically advanced motor available today.
In addition to being very compact and lightweight, it also has no brushes
or commutator, and it has high torque combined with low amp draw.
PRESSURE CONTROL BOX (DC-1600/2000/3100):
A rugged membrane transducer transmits a paint pressure signal to an
electronic relay which then powers the motor. This on-off design has a
pressure fluctuation of about 200 psi.
PRESSURE CONTROL BOX (DC-7700):
A tough solid state pressure transducer combined with a state of the art
variable speed electronic control provides consistant spray pressure.
Features include run dry protection and allowing faster priming once
fluid fills the pump. The safety fuse is easy to access from the outside of
the motor shell. This motor does not require any service.
(trigger shown in horizontal
locked position)
locked
unlocked
Important
To engage trigger
safety lock, turn
lever tab to horizon-
tal position. Test
regularily for proper
functioning while
system is shut
down.
For models
L65 & L-50
Figure 1a. - DC-2000 components.
paint pump
motor
pressure control
speed reducer
prime valve
suction system
airless hose
hose rack
heavy duty gun
reversible tip
on / off switch
DC-3100 components.
paint pump
motor
speed reducer
prime
valve
suction system
airless hose
Pressure control
heavy duty gun
reversible tip
on / off
switch
For model
L-26
DC-1600 components.
reversible tip
L-26G spray gun
prime valve
airless hose
paint pump
suction system
on / off switch
suction screen
2 to 3 drops
oil daily
2 to 3 drops
oil daily
2 to 3
drops
oil daily
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