Graco 308674C User Manual

INSTRUCTIONS-PARTS
LIST
308–674
This
INSTRUCTIONS
Viscount I
Hydraulic Motor and
Displacement Pump
Model 238–349, Series A
Rev. C
Supersedes Rev. B
GRACO INC. P.O. BOX 1441
COPYRIGHT
Graco
Inc. is registered to I.S. EN ISO 9001
MINNEAPOLIS, MN
1996, GRACO INC.
06169
55440–1441
Table
of Contents
Symbols
Warnings 2. Installation 5 Operation 7 Service 8
Parts 13 Warranty 16
Graco
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disconnecting Reconnecting Disconnecting Reconnecting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor
and Pump Assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phone Numbers
the Hydraulic Motor8. . . . . . . . . . . .
the Hydraulic Motor8. . . . . . . . . . . .
the Displacement Pump
the Displacement Pump
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . .
. . . . . .
10.
11.
13.
16.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment
D
This equipment is for professional use only
D
Read all instruction manuals, tags, and labels before operating the equipment.
misuse can cause the equipment to rupture or malfunction and result in serious injury
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.
.
.
D
Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor
D
Do not alter or modify this equipment.
D
Check equipment daily
D
Do not exceed the maximum working pressure stated on the equipment or in the Technical Data for your equipment. Do not exceed the maximum working pressure of the lowest rated component in your system.
D
Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the
nical Data
D
Handle hoses carefully
D
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose Graco hoses to temperatures above 66_C (150_F) or below –40_C (–40
D W
ear hearing protection when operating this equipment.
D
Do not move or lift pressurized equipment.
D
Comply with all applicable local, state, and national fire, electrical, and safety regulations.
section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
. Repair or replace worn or damaged parts immediately
. Do not pull on hoses to move equipment.
_F).
.
.
Tech-

WARNING
INJECTION HAZARD
Spray
from the gun, 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
Fluid injected into the skin is a serious injury injury
. Get immediate medical attention.
Do not point the gun at anyone or at any part of the body
Do not put your hand or fingers over the spray tip.
Do not stop or deflect leaks with your hand, body
Do not “blow back” fluid; this is not an air spray system.
Always have the tip guard and the trigger guard on the gun when spraying.
Check the gun dif
Be sure the gun trigger safety operates before spraying.
Lock the gun trigger safety when you stop spraying.
.
fuser operation weekly
. The injury may look like just a cut, but it is a serious
.
, glove or rag.
. Refer to the gun manual.
Follow the checking or servicing the equipment.
T
ighten all fluid connections before operating the equipment.
Check the hoses, tubes, and couplings daily repair high pressure couplings; you must replace the entire hose.
Fluid hoses must have spring guards on both ends, to help protect them from rupture caused by kinks or bends near the couplings.
Pressure Relief Procedure
on page 7 if the spray tip clogs and before cleaning,
. Replace worn or damaged parts immediately
MOVING PARTS HAZARD
Moving
parts can pinch or amputate your fingers. Keep clear of all moving parts when starting or operating the pump. Before checking or servicing the equipment, follow the
prevent the equipment from starting unexpectedly
Pressure Relief Procedure
.
on page 7 to
. Do not

WARNING
FIRE AND EXPLOSION HAZARD
Improper sult in a fire or explosion and serious injury
grounding, poor ventilation, open flames or sparks can cause a hazardous condition and re
. Ground the equipment and the object being sprayed. Refer to If there is any static sparking or you feel an electric shock while using this equipment,
ing immediately. Do not use the equipment until you identify and correct the problem.
Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being sprayed.
Keep the spray area free of debris, including solvent, rags, and gasoline. Before operating this equipment, electrically disconnect all equipment in the spray area. Before operating this equipment, extinguish all open flames or pilot lights in the spray area. Do not smoke in the spray area. Do not turn on or of
are present. Do not operate a gasoline engine in the spray area.
f any light switch in the spray area while spraying or while operating if fumes
Grounding
on page 5.
TOXIC FLUID HAZARD
-
stop spray-
Hazardous inhaled, or swallowed.
Know the specific hazards of the fluid you are using.
Store hazardous fluid in an approved container state and national guidelines.
Always wear protective eyewear solvent manufacturer
fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
, gloves, clothing and respirator as recommended by the fluid and
.
. Dispose of hazardous fluid according to all local,

Installation
General Information
NOTE:
in the text refer to the callouts in the figures and the parts drawing.
NOTE:
sories, available from your Graco distributor
Reference numbers and letters in parentheses
Always use Genuine Graco Parts and Acces
.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
1.
Pump:
manual 308–61
system as explained below the section
ARD
use a system ground wire and clamp. See
FIRE OR EXPLOSION HAZ
on page 4.
1.
. Also read
Hydraulic, and fluid hoses:
2. conductive hoses.
3.
Hydraulic power supply:
recommendations.
4.
-
-
Spray gun:
erly grounded fluid hose and pump.
5.
Fluid supply container:
6.
Object being sprayed:
7.
Solvent pails used when flushing:
code. Use only metal pails, which are conductive, placed on a grounded surface. Do not place the pail on a nonconductive surface, such as paper or cardboard, which interrupts the grounding continu ity.
8.
T
o maintain grounding continuity when flushing or
relieving pressure
gun firmly to the side of a grounded then trigger the gun.
ground through connection to a prop
, hold a metal part of the spray
use only electrically
follow manufacturer
follow your local code.
follow your local code.
follow your local
metal
pail,
’s
-
-
5308-674
General
1.
Connect the hydraulic motor (101) and the dis placement pump (102) as explained on page 8. See Fig. 1.
CAUTION
Installation
-
Keep the hydraulic system clean
T
o reduce the risk of damaging the hydraulic power supply and motor flush thoroughly with solvent, and then blow out with air again before connecting the lines to the hydraulic motor.
Always plug the hydraulic inlets, outlets and lines when disconnecting them for any reason to avoid introducing dirt and other contaminants into the system.
Carefully follow the manufacturer’s recommendations on reservoir and filter cleaning, and periodic changes of hydraulic fluid. The maximum water content of the hydraulic oil is 1 percent.
, blow out all hydraulic lines with air
101
,

102
06169
Fig. 1
Operation
Startup
Before each use,
add fluid as necessary to fill the lines.
check
the hydraulic fluid level and
WARNING
FIRE HAZARD
If hydraulic oil becomes too hot, it can reach its flash point and cause a fire.
Operating at too high an oil temperature can also cause faster motor seal wear and leak age. The recommended hydraulic oil operating temperature is 80–1 temperature approaches 130 motor and check the hydraulic oil supply cooling system, filters, etc. Clean or repair as needed.
Always use Graco-approved Hydraulic Oil or equivalent. Do not substitute a lower grade oil or one with a lower flash point.
The equivalent is a premium, ISO grade 46 petroleum-based hydraulic oil containing rust and oxidation inhibitors and anti-wear agents. Before using any other type of oil in this equipment, contact Graco T 1–800–543–0339.
grade oil or substitutes will void the warranty
15_F (27–45_
echnical Assistance,
Unauthorized use of lesser
C). If the oil
_F (54_
C), shut of
-
f the
.
Shutdown & Care
Follow
the
Pressure Relief Procedure W
below.
arning
Pressure Relief Procedure
WARNING
INJECTION
The system pressure must be manually relieved to prevent the system from
starting or spraying accidentally under high pressure can be injected through the skin and cause serious injury an injury from injection, splashing fluid, or moving parts, follow the whenever you:
D
are instructed to relieve the pressure,
D
stop spraying,
D
check or service any of the system equipment,
D
or install or clean the spray tip.
1.
Set hydraulic pump lever in by-pass position.
2.
Place an empty pail under the drain valves to catch drainage from the drain valves.
3.
Open all paint drain valves.
4.
Place an empty pail under guns to catch drainage from the guns.
HAZARD
. Fluid
. T
o reduce the risk of
Pressure Relief Procedure
5.
Actuate guns to relieve pressure.
6.
Shut of
7.
Leave the drain valve(s) open until you are ready to spray again.
If you suspect that the spray gun or hose is completely clogged, or that pressure has not been fully relieved after following the steps above, hose end coupling and relieve pressure gradually loosen completely
f engine.
very slowly loosen the
, then
. Now clear the valve or hose.

Disconnecting the Hydraulic Motor
WARNING
To
reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure
on page 7.
Service
1
1.
Relieve the pressure
2.
Disconnect the hydraulic hoses and plug all hy draulic connections and hoses.
.
CAUTION
Keep the hydraulic system clean
Always plug the hydraulic inlets, outlets and lines when disconnecting them for any reason to avoid introducing dirt and other contaminants into the system.
3.
Remove the cotter pin (5), and unscrew the cou pler (6) from the hydraulic motor displacement rod (104). Remove the o–ring (7) from the coupler See Fig. 1.
4.
With the unit upright, remove the three bolts (1) and the tie rods (2) holding the hydraulic motor (101) to the pump (102). See Fig. 1.
101
-
103
104
5
-
.
2
7
6
5.
Clean and inspect all parts. Replace parts as necessary. T refer to manual 308–618
o service the hydraulic motor (101),
Reconnecting the Hydraulic Motor
1. WIth
2.
3.

the unit upright, insert the three bolts (1) through the hydraulic motor tie plate (103), the tie rods (2), and into the pump tie plate (3). T the bolts to 20–30 ft-lb (27–40 N
Lubricate, and place the o–ring (7) on the coupler (6). Insert the coupler into the hydraulic motor displacement rod (104), making sure that the holes in both pieces are aligned. T 75–80 ft-lb (101–108 Nm). Insert the cotter pin (5). See Fig. 1.
Unplug all hydraulic connections and hoses. Reconnect the hydraulic hoses.
m).
orque the coupler to
orque
102
Fig. 2
3
06170
Notes
9308-674
Service
Disconnecting the Displacement Pump
CAUTION
When
servicing the left and center displacement pumps (as viewed from the rear of the system), the packings in both units must be replaced at the same time, or uneven performance will result.
1.
Flush the entire system.
Unscrew the lower tie plate (3), and retaining nut
6. (4) from the displacement pump.
7.
Refer to manual 308–650 for displacement pump service.
1
101
NOTE:
Any residual paint may clog the system.
WARNING
T
o reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure
2.
Relieve the pressure.
3.
Disconnect the filter hose and the inlet hose.
on page 7.
CAUTION
Be sure
being disconnected, to prevent it from falling and causing injury or property damage. Do this by se curely bracing the pump, or by having one person hold it while another disconnects it.
4.
to support the displacement pump while it is
Using an adjustable wrench, remove the three bolts (1) and the tie rods (2). Slide the pump (102) down as far as possible.
103
6
2
3
4
105
-
102
5.
With two adjustable wrenches, use one to hold the coupler (6) to prevent it from turning, and the other to disconnect the displacement rod (105). Carefully remove the pump from the hydraulic motor (101).
10 308-674

Fig. 3
Reconnecting the Displacement Pump
CAUTION
Service
7. T return line valve Run the pump slowly to ensure proper operation.
urn on the power supply
first
, then the supply line valve.
. Open the hydraulic
Be
sure
to support the displacement pump while it is being disconnected, to prevent it from falling and causing injury or property damage. Do this by se curely bracing the pump, or by having one person hold it while another disconnects it.
1.
Hand–tighten the locking nut (4) on the displace ment pump (102).
2.
Place the lower tie plate (3) above the locking nut (4). T
ighten the locking nut against the lower tie
plate. T
Have one person hold the displacement pump
3. while another connects it to the motor (see the
CAUTION
use one to prevent the coupler (6) from turning, and the other to firmly attatch the displacement rod (105). See Fig. 3.
4.
Attach the displacement pump to the hydraulic motor by inserting the three bolts (1) through the upper tie plate (103), tie rods (2), and the lower tie plate (3). T
orque to 140–150 ft-lb (190–203 N
above). With two adjustable wrenches,
orque to 20–30 ft-lb (27–40 N
m).
m).
WARNING
T
-
-
o reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure
8.
Before returning the pump to production,
the pressure
enough to prevent leakage, but no tighter
and tighten the packing nut just
on page 7.
relieve
.
106
Reconnect all hoses.
5.
6.
Fill the packing nut (106) with Graco Throat Seal Liquid, or compatible solvent. See Fig. 4.
Fig. 4
06188
11308-674
Notes
12 308-674
Pump
1
2
3
4
5
6
complete parts list, see manual 308–618.
For For complete parts list, see manual 308–650. T
orque to 20–30 ft-lb (27–40 N
T
orque to 140–150 ft–lb (190–203 N
T
orque to 75–80 ft–lb (101–108 N
Apply lubricant.
1
3
m).
m).
m)
Assembly Parts
Ref No. Part No. Description Qty.
101
1 113–583 BOLT 2 191–217 TIE ROD 3 3 191–213 4 191–212 NUT 5 100–103 PIN, cotter 1 6 207–370 NUT 7 156–082 P 101 238–356 HYDRAULIC MOTOR
102 238–348 DISPLACEMENT PUMP 103 191–216 PLA
1
104 189–070 105 178–895 106 191–234 NUT
, tie
TIE PLA
, retaining , coupler
ACKING, o–ring (see manual 308–618) (see manual 308–650)
TE, tie (see manual 308–618) ROD, displacement, motor (see manual 308–618) ROD, displacement, pump (see manual 308–650)
, packing
(see manual 308–650)
TE, pump
3 1
1 1
1 1 1 1 1 1 1
Technical
Maximum
5
2
6
7
5
6
Input Pressure Maximum Outlet Pressure
Hydraulic
.
. . . . . . . . . . . . . . . . .
Fluid
.
. . . . . . . . . . . . .
Data
1500 psi (103 bar)
2000 psi (138 bar) at
2.5
GPM (9.5 L/m)
3
4
4
2
Fig.
102
06170
5
13308-674
Notes
14 308-674
Notes

The
WARRANTY
Graco
warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale warranty, tive. ommendations.
This warranty does not cover misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non–Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility with Graco equipment of structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, instal lation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claim. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor and transportation.
DISCLAIMERS AND LIMITATIONS
The terms of this warranty constitute purchaser’s sole and exclusive remedy and are in lieu of any other warranties (express or implied), liabilities, including product liabilities, based on negligence or strict liability tial damages or loss is expressly excluded and denied. In no case shall Graco’ Any action for breach of warranty must be brought within two (2) years of the date of sale.
Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment proven defec
This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’
including warranty of merchantability or warranty of fitness for a particular purpose
Graco Warranty and Disclaimers
by an authorized Graco distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this
s written rec-
, and Graco shall not be liable for
, any malfunction, damage or wear caused by faulty installation,
, and of any non–contractual
. Every form of liability for direct, special or consequen
s liability exceed the amount of the purchase price.
-
-
-
EQUIPMENT NOT COVERED BY GRACO WARRANTY
Graco makes no warranty respect to accessories, equipment, materials, or components sold but not manufactured by Graco. These items sold, but not manufactured by Graco (such as electric motor Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.
TO
PLACE AN ORDER
, and disclaims all implied
Graco
, contact your Graco distributor
warranties of merchantability and fitness for a particular purpose
, switches, hose, etc.) are subject to the warranty
Phone Number
1–800–367–4023 T
, with
, if any
, of their manufacturer
, or call this number to identify the distributor closest to you:
oll Free.
.
Foreign Offices:
16 308-674
Sales
Belgium, Canada, England, Korea, Switzerland, France, Germany
Offices:
GRACO INC. P.O. BOX 1441
PRINTED
IN U.S.A. 308–618 April 1996, Revised September 1996
Atlanta, Chicago, Detroit, Los Angeles
MINNEAPOLIS, MN
, Hong Kong, Japan
55440–1441
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