Graco Ultra 1000 User Manual

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307–785
TABLE OF CONTENTS
INTRODUCTION 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY W ARNINGS 4. . . . . . . . . . . . . . . . . . . . . . . . . . .
AVERTISSEMENT 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADVERTENCIA 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SETUP 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATION 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Startup 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning a Clogged T ip 12. . . . . . . . . . . . . . . . . . . . .
SHUTDOWN AND CARE 13. . . . . . . . . . . . . . . . . . . . . .
FLUSHING GUIDELINES
When T o Flush 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Flush 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING GUIDE
Motor W on’t Operate 16. . . . . . . . . . . . . . . . . . . . . . .
Low Output 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No Output 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excessive Pressure Fluctuations 20. . . . . . . . . . . .
Motor Is Hot And Runs Intermittently 21. . . . . . . . .
Electrical Short 21. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spin Test 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bridge Test 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPAIR
General Repair Information 24. . . . . . . . . . . . . . . . .
Motor Brush Replacement 25. . . . . . . . . . . . . . . . . .
Power Supply Cord Replacement 26. . . . . . . . . . . .
On/Off Switch Replacement 26. . . . . . . . . . . . . . . . .
Bridge Rectifier Replacement 27. . . . . . . . . . . . . . .
Circuit Breaker Replacement 27. . . . . . . . . . . . . . . .
Circuit Board Replacement 28. . . . . . . . . . . . . . . . .
Pressure Control Replacement 29. . . . . . . . . . . . . .
Pressure Control Adjustment 30. . . . . . . . . . . . . . . .
Bearing Housing &
Connecting Rod Replacement 32. . . . . . . . . . . . . . .
Drive Housing Replacement 33. . . . . . . . . . . . . . . .
Motor Replacement 34. . . . . . . . . . . . . . . . . . . . . . . .
Displacement Pump Repair 36. . . . . . . . . . . . . . . . .
PARTS DRA WINGS & LISTS
Displacement Pump 39. . . . . . . . . . . . . . . . . . . . . . .
Sprayer 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Control 42. . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Diagram 43. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACCESSORIES 43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TECHNICAL DA TA 44. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIMENSIONS 44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GRACO PHONE NUMBERS 44. . . . . . . . . . . . . . . . . . .
THE GRACO W ARRANTY AND DISCLAIMERS 44. .
INTRODUCTION
ULTRA 1000 BASIC COMPONENTS
Your new Ultra  1000 Sprayer functions and operates
differently
than other airless paint sprayers. This section
will help you become familiar with the sprayer before op -
erating
it.
Pressure Control
The pressure control includes an ON/OFF switch for the
sprayer , the pressure adjusting control knob, a pressure
sensing device and a current overload circuit breaker
with
a manual reset button. The function of the pressure
control is to control the motor speed so that the sprayer
maintains constant fluid pressure 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 suf ficient paint volume
at the selected pressure. W orking 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 -
ing. When the pump is not cycling, the motor may hum
intermittently until the fluid pressure stabilizes, then the
motor
will shut itself of f. However , there will still be power
to the sprayer and it will stay pressurized and ready to
use
until you manually shut it of f and relieve pressure.
Because the motor is DC, it is less sensitive to low volt-
age or voltage fluctuations than an AC motor , and a
heavy gauge extension cord of up to 150 ft. (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.
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 has a pressure drain valve for manually relieving fluid
pressure.
Hoses
The grounded, nylon spray hoses have spring guards on
both ends. The 50 ft. (15.2 m) hose has a 1/4 in. ID. The
3 ft. (0.9 m), 3/16 in. ID hose provides more flexible gun
movement. The nylon hose material acts as a pulsation
dampener to absorb 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 the Detail in Fig 3–1. The gun provided with the
sprayer
also has a filter for final paint straining. The Re -
verse–A–Clean IV SwitchT ip uses high pressure fluid to
remove clogs from the spray tip without removing it from
the gun. The Reverse–A–Clean IV DripLess tip guard is
a safety feature which helps reduce the risk of fluid injec -
tion
injury .

Graco Ultra 1000 Specifications

General

Brand	Graco
Model	Ultra 1000
Category	Paint Sprayer
Language	English