Graco Viscount I 1000 Operation manual

Instructions – Parts List
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 2002, Graco Inc. is registered to I.S. EN ISO 9001
STAINLESS STEEL
ViscountrI 1000 Pump
1000 psi (6.9 MPa, 69 bar) Maximum Hydraulic Input Pressure
1000 psi (6.9 MPa, 69 bar) Maximum Fluid Outlet Pressure
Part No. 218077, Series B
U.S. Patent No. 4,383,475
Patent 1984 Canada
Brevete 1984
Foreign Patents Pending
307622H
Read warnings and instructions.
See page 2 for Table of Contents.
03833

2307622
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layout 15. . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 16. . . . . . . . . . . . . . . . . . . . . .
Graco Information 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
WARNING
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated system component. Refer to the
Technical Data on pages 14 for the maximum working pressure of this equipment.
DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DDo not use hoses to pull equipment.
DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).
DWear hearing protection when operating this equipment.
DDo not lift pressurized equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.

3307622
WARNING
INJECTION HAZARD
Spray from the gun/valve, hose leaks, or ruptured components can inject fluid into your body and
cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the
skin can also cause serious injury.
DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi-
cal attention.
DDo not point the gun/valve at anyone or at any part of the body.
DDo not put your hand or fingers over the spray tip/nozzle.
DDo not stop or deflect leaks with your hand, body, glove or rag.
DDo not “blow back” fluid; this is not an air spray system.
DAlways have the tip guard and the trigger guard on the gun/valve when spraying.
DBe sure the gun/valve trigger safety operates before spraying.
DLock the gun/valve trigger safety when you stop spraying.
DFollow the Pressure Relief Procedure on page 8 whenever you: are instructed to relieve pres-
sure; stop spraying; clean, check, or service the equipment; and install or clean the spray tip/
nozzle.
DTighten all fluid connections before operating the equipment.
DCheck the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
DUse only Graco approved hoses. Do not remove any spring guard that is used to help protect the
hose from rupture caused by kinks or bends near the couplings.
MOVING PARTS HAZARD
Moving parts, can pinch or amputate your fingers.
DKeep clear of all moving parts when starting or operating the pump.
DBefore servicing the equipment, follow the Pressure Relief Procedure on page 8 to prevent the
equipment from starting unexpectedly.

4307622
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and
result in a fire or explosion and serious injury.
DGround the equipment and the object being sprayed. Refer to Grounding on page 5.
DIf there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing immediately. Do not use the equipment until you identify and correct the problem.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
DKeep the spray area free of debris, including solvent, rags, and gasoline.
DElectrically disconnect all equipment in the spray area.
DExtinguish all open flames or pilot lights in the spray area.
DDo not smoke in the spray area.
DDo not turn on or off any light switch in the spray area while operating or if fumes are present.
DDo not operate a gasoline engine in the spray area.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
DKnow the specific hazards of the fluid you are using.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.

5307622
Installation
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 4.
Ground all of this equipment:
DPump: Loosen the grounding lug locknut (W) and
washer (X). Insert one end of a 12 ga (1.5 mm2)
minimum, ground wire (Y) into the slot in lug (Z)
and tighten the locknut securely. See Fig. 1. Order
Part No. 237569, Ground Wire and Clamp. Connect
the clamp end of the ground wire to a true earth
ground.
DFluid and hydraulic hoses: Use only electrically
conductive hoses.
DHydraulic power supply: Follow manufacturer’s
recommendations.
DSpray gun or dispensing valve: Obtain grounding
through connection to a properly grounded fluid
hose and pump.
DObject being sprayed: Follow the local code.
DFluid supply container: Follow the local code.
DAll solvent pails used when flushing: Follow the
local code. Use only metal pails, which are conduc-
tive. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which inter-
rupts the grounding continuity.
To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the gun
firmly to the side of a grounded metal pail, then trigger
the gun.
Fig. 1
W
X
Y
Z
0864

6307622
Installation
Typical Installation
03815
CD
R
P
B
K
A
NG
E F H
J
L
M
Q
hydraulic outlet
7/8–14 UNF-2a
37_(m) flare
hydraulic inlet
3/4–16 UNF-2a
37_(m) flare
3/4 npt(f)
fluid intake
KEY
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
Fluid hose to gun
Fluid drain valve
Suction hose
Hydraulic return line
Hydraulic supply line
shutoff valve
Pressure gauge
Flow control valve
Pressure reducing valve
Accumulator
Drain line
Hydraulic supply line
Hydraulic power supply
Ground wire
Wet-cup
Check valve
Hydraulic return line
Shutoff valve

7307622
Installation
NOTE: The Typical Installation shown on page 6 is
only a guide. Contact your Graco distributor for assis-
tance in custom designing your hydraulic system.
NOTE: Mount the pump to suit the type of installation
planned. The pump dimensions and mounting hole
layout are shown on the back cover.
CAUTION
The hydraulic supply system must be kept clean at
all times to avoid damage to the motor and hydraulic
power supply. Blow out all hydraulic lines with air and
flush thoroughly with hydraulic oil before connecting
the lines to the motor.
Always plug the hydraulic inlets, outlets, and lines
when disconnecting them for any reason to avoid
introducing dirt and other contaminants into the sys-
tem.
Be sure that your hydraulic power supply is equipped
with a suction filter to the hydraulic pump and a system
return line filter of 10 micron size. Carefully follow the
manufacturer’s recommendations on reservoir and
filter cleaning and periodic changes of hydraulic fluid.
The motor has a 3/4–16, 37_(m) flared tube hydraulic
oil inlet fitting, and a 7/8–14, 37_(m) flared tube hy-
draulic oil outlet fitting. Use a minimum 1/2 in. ID
hydraulic supply line and a minimum 5/8 in. ID return
line.
On the hydraulic oil supply line (L), install a shutoff
valve (E) to isolate the system for servicing; a fluid
pressure gauge (F) to monitor hydraulic oil pressure to
the motor and avoid overpressurizing the motor or
displacement pump; a pressure and temperature
compensated flow control valve (G) to prevent the
motor from running too fast; a pressure reducing valve
(H) with a drain line (K) running directly into the hy-
draulic return line (D); and an accumulator (J) to
reduce the hammering effect caused by the motor
reversing direction.
On the hydraulic return line (D), install a shutoff valve
(R) for isolating the motor for servicing.
WARNING
To reduce the risk of serious injury including fluid
injection, your system must include a drain valve
installed near the pump fluid outlet to help relieve
fluid pressure in the displacement pump and hoses
when shutting off the pump.
Install a fluid drain valve (B) and a grounded dispense
hose to the pump’s 1/2 npt fluid outlet, and connect a
suction hose to the 3/4 npt pump fluid intake. See the
Typical Installation.
WARNING
To reduce the risk of component rupture, which can
cause serious injury, including fluid injection, he
sure that all accessories and system components
can withstand the pressure and flow created by this
pump.
Ground the pump and system as instructed on
page 5.

8307622
Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause
serious injury. To reduce the risk of an
injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you
DAre instructed to relieve the pressure
DStop spraying/dispensing
DCheck or service any of the system equipment
DInstall or clean the spray tip/nozzle
1. Lock the gun/valve trigger safety.
2. Turn off the hydraulic supply line valve (E) first,
then the return line valve (R).
3. Unlock the gun/valve trigger safety.
4. Hold a metal part of the gun/valve firmly to a
grounded metal waste container and trigger it to
relieve the fluid pressure.
5. Lock the trigger safety.
6. Open the pump drain valve (required in your
system), having a container ready to catch the
drainage.
7. Leave the drain valve open until you are ready to
spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
hose end coupling and relieve pressure gradually, then
loosen completely. Now clear the tip or hose obstruc-
tion.

9307622
Operation
CAUTION
When shutting off the hydraulic supply system,
always shut off the supply line shutoff valve (E) first,
and then the return line shutoff valve (R). This is to
prevent overpressurizing the motor or its seals.
When starting the hydraulic system, open the return
line shutoff valve first.
Check the hydraulic fluid level, and add fluid as neces-
sary to fill lines, before each use.
Flush the pump before using it for the first time to
remove the light oil which was left in after factory
testing to protect the pump from corrosion. Be sure the
solvent used is compatible with the fluid to be sprayed
and the wetted parts of the pump, shown on the back
cover.
To Flush:
Use a compatible solvent when flushing. In a circulat-
ing system, circulate the flushing fluid long enough to
thoroughly clean all lines.
WARNING
To reduce the risk of fluid injection, static sparking
and splashing when flushing, be sure the entire
system is grounded, including flushing pails. Hold a
metal part of the gun firmly to the side of a
grounded metal pail, and aimed into it, and use the
lowest possible pressure to flush. See Fig. 2. Then,
follow the Pressure Relief Procedure on page 8.
Fig. 2
ÄÄÄÄ
ÄÄÄÄ
ÄÄÄÄ
01136
Maintain firm
metal-to-metal
contact between
gun and container.
To operate the pump, turn on the hydraulic power
supply. Open the hydraulic return line shutoff valve (R)
first, and then the supply line shutoff valve (E). Slowly
open the flow control valve. Use the lowest possible
pressure to obtain the desired results. Higher pres-
sures increases tip wear and pump wear.
In a direct supply system, the pump starts when the
gun or valve is opened and stall when it is closed. In a
circulating system, the pump operates continuously
until the hydraulic power supply is turned off.
WARNING
To reduce the risk of overpressurizing the system
which can cause a rupture, fire, or explosion and
result in serious injury, including fluid injection,
always follow these precautions:
Never exceed 1000 psi (7 MPa, 70 bar), or 3 gpm
(11.4 liter/min) hydraulic input to the motor.
Never exceed 1000 psi (7 MPa, 70 bar) maximum
pump outlet pressure.
CAUTION
Never allow the hydraulic oil temperature to exceed
130_F (54_C). The pump seals wear faster and
leaking might occur at higher temperatures.

10 307622
Maintenance
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
Check the tightness of the packing nut weekly. Always
relieve the pressure before adjusting. The packing
nut should be tight enough to stop leakage, but no
tighter. Overtightening compresses and damages the
packings and results in pump leaking.
Carefully monitor the fluid supply. If the pump empties
the supply container, air is sucked into the pump,
causing it to run too fast and to be damaged. If the
pump runs too fast, shut it off immediately. Fill the
supply container and prime the pump to remove all air,
or flush the pump.
Always flush the pump before any fluid dries in it.
Always stop the pump at the bottom of its stroke to
prevent the fluid from drying on the displacement rod
and damaging the throat packings.
Check Valve Adjustment
The fluid piston valve is factory set for low volume
pumping of light viscosity fluids. For heavier fluids or
more volume, increase the ball travel by moving the
pin (S) to a high set of holes. See Fig. 3. Fig. 3
S