Table Of Contents - Graco E Series Instructions-Parts List Manual
Airless paint sprayer
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Also See for E Series:
- Operation (40 pages) ,
- Instructions-parts list manual (16 pages) ,
- Instructions manual (8 pages)
Table of Contents
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Introduction
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Motor Won't Operate
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Low Output
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No Output
Excessive Pressure Fluctuations
Motor Is Hot and Runs Intermittently
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Electrical Short
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Repair
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List of Tools
Power Supply Cord Replacement
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Filter Replacement
ULTRA@ 433 BASIC COMPONENTS
Your new Ultra@ 433 Sprayer functions and operates dif-
ferently than other airless paint sprayers. This section will
help you become familiar with the sprayer before operat-
ing it.
Pressure Control
The pressure control includes an ONlOFF switch for the
sprayer, the pressure adjusting control knob and a pres-
sure sensing device. Its function is to control the motor
speed so that the sprayer maintains constant fluid pres-
sure at the pump outlet.
Motor
The DC motor has sealed bearings and replaceable mo-
tor brushes. Its function is to drive the displacement
pump at the rate needed to supply sufficient paint volume
at the selected pressure. Working together, the pressure
control and motor cause the pump to cycle whenever
there is fluid or pressure demand. When the pump is cy-
cling, the motor sounds like an automobile starter crank-
is
ing. When the pump
not cycling, the motor may hum
intermittently until the fluid pressure stabilizes, then the
motor will shut itself off. However, there will stili be power
to the sprayer and it will stay pressurized and ready to
use unless you manually shut it off and relieve pressure.
Because the motor is DC, it
age or voltage fluctuations than an AC motor, and an ex-
tension cord of up to 45 m can be used.
Drive Assembly
The sealed drive assembly transfers power from the DC
motor to the displacement pump.
Displacement Pump
The positive displacement, volume-balanced pump pro-
vides equal fluid delivery on both the up and down pump
strokes. The pump has a wet-cup which, when filled with
Graco Throat Seal Liquid, helps prevent damage to the
throat packings and piston rod.
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INTRODUCTION
is
less sensitive to low volt-
2
4
6
8
Pressure Control Calibration
Bearing Housing &
Conn. Rod Replacement,
Capacitor Replacement
Parts Lists and Drawings
Complete Sprayer
NOTE: See manual 307-793, supplied, for the displace-
ment pump repair instructions and parts list.
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Fluid Filter
The fluid filter strains the paint to help avoid clogs in the
hose and spray tip. The filter includes a reusable element
and a pressure drain valve for relieving fluid pressure.
Hoses
The grounded, nylon spray hoses have spring guards on
both ends. The152 m hose has a 1/4 in. ID. The
3/16 in. ID whip hose allows flexible gun movement. The
nylon hose material acts as a pulsation dampener to ab-
sorb pressure fluctuations.
Spray Gun
RAC IV DripLess Tip Guard
Graco high pressure spray guns have a trigger safety
which prevents accidental triggering when it is engaged.
See Fig Z-I. The gun provided with the sprayer also has
a filter for final paint straining. The ReverseA-Clean IV
the spray tip without removing
verse-A-Clean IV DripLess tip guard is a safety feature
which helps reduce the risk of fluid injection injury.
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Back Cover
0.9
from the gun. The Re-
it
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