INSTRUCTIONS-PARTS LIST

This manual contains IMPORTANT

READ AND RETAIN FOR REFERENCE

ORAC0

307-624

SUPERSEDES A

I250

PUMP

l W p s i I70 bar) MAXIMUM HYDRAULIC INPUT PRESSURE

250 psi I1 7 bad MAXIMUM WORKING PRESSURE

Model 218-074 Series

drum

A

tank mounting

Model 218-076

Series

A

Stubby length for off-drum mounting

-

CONVERSION

3:l

KITS 218-111 218-212

pumps to the new style Viscount I

-

For converting old style Viscount I 250 pumps and

President pump. See page 10.

GRACO INC. P.O. Box I 1 MINNEAPOLIS, MN 55440-1444

@COPYRIGHT 1984 G RA CO INC.

WA

RNIPJG

HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY.

FOR PROFESSIONAL

USE

ONLY. OBSERVE ALL WARNINGS.

Read and.understand all instruction manuals

before

operating equipment.

FLUID INJECTlQPd HAZARD HOSE SAFETY

General Safety

The hydraulic portion of this equipment generates very high fluid pressure. Spray from leaks or ruptured components can inject fluid through your skin and into your body and cause ex- tremely serious bodily injury, including the need for amputa- tion. Also, fluid injected or splashed into the eyes can cause severe damage.

NEVER point the spray gun at anyone or at any part of the body. NEVER put hand or fingers over the spray tip. NEVER try to "blow back" paint; this is NOT an air spray system. dangerous. If the hose develops a pinhole leak, split or rupture due to any kind of wear, damage or misuse, the high pressure spray emitted from it can cause an injection injury or other serious bodily injury or property damage.

TIGHTEN all fluid connections securely before each use. High pressure fluid can dislodge a loose coupling or pressure spray to be emitted from the coupling. allow high

ALWAYS have the tip guard in place on the spray gun when spraying.

ALWAYS follow the Pressure Relief Procedure below before cleaning or removing the spray tip or servicing any system equipment.

NEVER use a damaged hose. Before each use, check entire hose for cuts, leaks, abrasion, bulging cover, or damage or movement of the hose couplings. If any of these conditions exist, replace the hose immediately. DO NOT recouple high pressure hose. Never use tape or any device to try to mend the hoses; it cannot contain the high pressure fluid.

NEVER try to stop or deflect leaks with your hand or body.

CHECK operation of all equipment safetv devices before each use.

Medical Treatment

If an fluid a pears to enetrate our skin et

DO NOT TREAT AS A SIMPLE CUT.

1412)681-6$69

.

Tell the doctor exactly what fluid was injected. For treatment

NATIONAL P O I SON CENTER NETW OR K

HANDLE AND ROUTE HOSES CAREFULLY. Do not pull on hoses to move equipment. Do not use materials or solvents which are not compatible with the inner tube and cover of the hose. DO NOT expose the hose to temperatures above 16Q°F

@Z°Cl or below -40°F I-40°CI.

Hose Electrical Continuity

Some hoses on the market may have a ground wire extending the length of the hose. If the ground wire breaks the electrical grounding of the hose will be destroyed. resistance of the hose. When using multiple hose assemblies, check the overall resistance. If the overall resistance of coupl- ed hoselsl exceeds 29 megohms, replace it immediately.

EQUIPMENT MlSUS€ HAZARD

General Safety

Any misuse of the spray equipment or accessories, such as overpressurizing, modifying parts, using incompatible chemicals and materials, or using worn or damaged parts, can cause them to rupture and result in injection or other serious bodily injury, fire, explosion or property damage.

NEVER alter or modify any part could cause it to malfunction. of thii equipment: doing so

CHECK all spray equipment regularly and repair or replace worn or damaged parts immediately.

System Pressure

This pump can develop 250 psi (17 bad MAXIMUM WORK-

INPUT PRESSURE. Be sure that ail spray equipment and ac- cessories are rated to withstand the maximum working pressure of this sprayer. DO NOT exceed the maximum work- ing pressure of any component or accessory used in the system.

Material Compatibility compatible with tha wetted parts shown in the Technical Data on the back cover. Always read the material and solvent manufacturer's literature before using them in this sprayer.

! i j::::. i.

,

:

"

!

FIRE OR EXPLOSION HAZARD

Static electricity is created by the high velocity flow of fluid through the pump and hose. If every part of the spray equip- system may become hazardous. Sparking may also occur when plugging in or unplugging a power supply cord. Sparks can ignite fumes from solvents and the fluld being sprayed, dust particles and other flammable substances, whether you are spraying indoors or outdoors, and can cause a fire or ex- in the spray area when there is any chance of igniting fumes still in the sir. not

Grounding

To reduce the risk of static sparking, ground the pump and all other spray equipment used or located in the spray area.

CHECK your local electrical code for detailed grounding in- structions for your area and type of equipment. BE SURE to ground all of this spray equipment:

1. Pump:

use ground wire and clamp as shown in Fig 1.

2.

500 use only grounded hoses with a maximum of feet (150 m) combined hose length to ensure ground- ing continuity. Refer also to HOSE SAFETY.

3. Spray gun: obtain grounding through connection to a properly grounded fluid hose and pump.

4.

5.

Object being sprayed: according to local code.

All solvent pails code. place the pail on used when flushing, according

Use only metalpails, a which are conductive. to local

Do not non-conductive surface, such as paper or cardboard, which interrupts the grounding continuity.

6. To maintain grounding continuity when flushing or reliev- always hold a metal part of the gun firmly to the side of a metal pail, then trigger the gun.

MOWING PARTS HAZARD

Moving parts can pinch or amputate your fingers or other body parts. KEEP CLEAR of moving pans when starting or

To ground the pump, loosen the grounding lug locknut and washer ground wire

IX). in lug (21

(W)

Insert one end of a 12 ga 11.5 mmzl minimum, a true earth ground. and tighten the locknut

securely. See Fig 1. Refer to page 11 for ordering a ground

wire and clamp. Connect the clamp end of the ground wire to

Y

Fig 1

Flushing Safety

Reduce the risk of injection injuw. static sparking, or splashing by following the specific flushing procedure given on page this manual. Shut off the air to the gun before flushing. metal part of the gun firmly to the side of a of

Hold a grounded metal pail and use the lowest possible fluid pressure during flushing.

IMPORTANT

INSTALLATION

Fig 2

The TvDical Installation shown above is onlv reoresen- tative.'Contact Graco Fluid Systems, 9451

W.

Belmont,

Franklin Park. IL 60131-2891: (3121 678-7200 for assistance in designing a system to suit your particular needs. Graco mounting accessories are shown on page

9, the pump dimensions and mounting hole layout are shown on the back cover.

CAUTION

all times to avoid damage to the motor and hydraulic power supply. Blow out all hydraulic lines with air and flush thoroughly with solvent 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 system.

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.

-

Connect a 112 in. minimum ID hydraulic supply line to the 3/4-16, 37O flared tube fitting at the hydraulic motor. Connect a 518 in. minimum ID return line to the

7/8-14, 37O flared tube adapter. Install high pressure shutoff valves at the supply and return line ends for use when removing the pump for inspection or repair. Refer

to Fig 2.

. .

Install a properly sized, pressure-compensated flow control valve at the inlet of the motor. Limit the fluid volume to that required for your installation.

WARNING

stalled near the pump fluid outlet to help relieve fluid pressure in the displacement pump and

Connect a ground wire and clamp as explained on page 3.

OPERATION

Check the hydraulic

fluid

level, and add fluid as necessary to the fill lines, before each use.

F pump wet-cup (L), if the pump is not immersed,

(TSL) or a

1/3 full of Graco Throat Seal Liquid compatible solvent to prevent material from drying on the displacement rod and damaging the pump packings. Refer to Fig 4.

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 material to be sprayed and the pump wetted parts shown on the back cover. Flush until clean solvent comes from the gun, or in a circulating system, flush long enough to clean the entire system.

WARNING

Be sure the entire system and flushing-pails are properly grounded before flushing. Shut off the air to the gun1 Always use the lowest possible fluid pressure, and.maintain firm metal to metal contact between the gun and pail to reduce the

risk of static sparking and splashing. See Fig 3.

.

.)

L

~CAuT'oNl

Care of the Pump

Keep the wet-cup (LI

Liquid (TSL) or a

1/3

Check the tightness of the packing nut weekly. Before adjusting, turn off the hydraulic supply to the pump, trigger the gun and open the drain valve to prevent in- jury from the pump unexpectedly stroking. The.packing nut should be tight enough to stop leakage,. but no tighter. Overtightening will compress and damage the packings and result in pump leaking. Use a pin in one of the holes of the packing nut to adjust it. See Fig 4.

Fig 3

To operate the pump, turn on the hydraulic power sup- ply and slowly open the hydraulic supply shutoff valve.

Use the lowest possible pressure to obtain the desired results. Higher pressures will increase tip wear and pump wear.

In a direct supply system, the pump will start when the gun or valve is opened, and stall when it is closed. In a clrculating system, the pump will operate continuously until the hydraulic power supply is turned off.

NEVER exceed loo0 psi (70 barl, or 3 gpm (11.36 literlmin) hydraulic input to the motor.

I exceed outlet pressure.

250 psi (17 bar) maximum pump

Carefully monitor the material supply. If the pump emp- ties the supply container, air is sucked into the pump, causing it to run too fast and to pump runs too fast, shut it off be damaged. If the immediately. Fill the sup- ply container end prime the pump and hoses to remove all air, or flush the pump and hoses with a compatible solvent and leave it filled with an oil-base solvent or mineral spirits.

CAUTION

Never leave water-base material or air in the pump when it is not in use. Fill the pump with mineral spirits or other oil-base solvent to prevent pump corrosion or material hardening in the pump. For long term storage, cycle mineral spirits through the pump, then pump out the excess. W

Fluid Piston 8 Intake Valve Adjustment

The fluid piston and intake valves are factory set for pumping medium viscosity fluids such as spray paint.

See Fig 5

and the chart below.

Disassemble pump as explained on page 8 and adjust the valves as follows: Place the piston in a vise as shown in Fig 6, loosen the upper displacement plunger

(P) to relieve tension on the plunger bolt (N), adjust the ball stop screw for the desired ball travel and retighten the upper displacement plunger (P) securely. Refer to

Fig 6. Set the intake valve pin as desired and reassem- ble the pump.

(:

Paint Viscosity b

Pump Operathg

Conditions

Light viscosity, pump surging

Medium viscosity,

(factory setting)

Heavy viscosity, erratic pump operation

Intake Valve

Adjust Pin

Location

Lowest holes

Center or highest holes

Piston Valve

Adjust Plunger Bolt (N)

Two turns in from factory setting:

0.09 in.

12.3

mrn) ball travel.

Bolt factory set at four turns from top of piston ball: ball travel.

0.19 in. (4.8 mm)

Two turns out from factory setting:

0.28 in. (7.1 mrnl ball travel.

Fig 5

BALL

TRAVEL

0.09 in. 12.3 mml

FOR LIGHTVISCOSITY

TROUBLESHOOTING CHART

PROBLEM CAUSE

I

SOLUTION

Pump operates, but output low on both strokes

Restricted lines or inadequate hydraulic supply

Clear lines: increase hydraulic supply.

Open; clean. Insufficient hydraulic pressure: Clos- ed or clogged valves, etc.

Refill Et reprime or flush: Exhausted material supp\y

Clogged material line, valves, etc.

Fluid check valves need adjusting

Packing nut too tight

Clear:'

Adjust: See page 6.

Loosen.

I

Pump operates, but output low on down stroke

Pump operates, but low on up stroke

Erratic pump operation

Loose packing nut or worn packings

Held open or worn intake valve

Held open or worn piston or

Dackinos

.

Exhausted material supply

Held open or worn intake valve or piston packings

Fluid check valves need adjusting

I

Tighten: replace. See manual

307-651. I

I

Clear; service. See manual 307-651.

Clear: service. See manual 307-651.

I 1

Refill and reprime or flush?

Clear: service. See manual 307-651.

Adjust; See page 6.

Lower.

Clear: increase.

-

-

Pump fails to operate

Excessive hydraulic fluid supply volume

Open; clean.

-

Restricted lines or inadequate hydraulic supply

Insufficient hydraulic pressure; cbs- ed or clogged valves, etc.

Refill and reprime or flush: Exhausted materiil supply

Clogged material line, valves, etc. Clear?

Damaged hydraulic motor

Dried material seizure of displace- ment rod

Service: see

Service?

307-654.

-

'Stop the pump immediately if it is running too fast; check material supply. If empty, refill and reprime the pump being sure to eliminate all air from the system, or flush the pump and store it with an oil-based solvent, such as mineral spirits, to prevent corro- sion.

"Shut off the pump and trigger the gun to relieve pressure; open the drain valve; disconnect material line. If pump is clogged. starts when

***Always Stop the pump rod seizure. at the bottom of its stroke, and keep the packing nut/wet-cup 113full of TSL to help prevent displacement

NOTE:

For displacement pump repair instructions, see separate manual 307-651.

Disassembly

1. Flush the pump if possible. Shut off the hydraulic supply, trigger the gun, and open the drain valve to relieve pressure before servicing the pump. Stop the pump at the bottom of its stroke.

2. Disconnect all hoses from the displacement pump.

3. If you remove the pump from its mounting, discon- nect the hydraulic hoses first, and plug all hydraulic connections to prevent contamination.

4. Unscrew the coupling nut ment plunger (R). See Fig

( Q )

7. from the displace-

5. Unscrew the lower locknut (23) from the return mounting tube (25).

6. Unscrew the swivel union mounting tube (21).

(S)

CAUTION

tubes close to the hydraulic motor base to prevent thread damage in the base. Use thread sealer or

Reassembly

1. Position the displacement pump on the mounting tubes (21 Et 25). Thread the upper locknut (23) onto the return mounting tube (25) a couple of turns.

Tighten the swivel union securely onto the sup- ply mounting tube (21 ); torque to 65-75 ft-lb (88-104

Nm). See Fig 7.

(S)

2. Butt the connecting rod plunger (R)

(20) and displacement together and adjust the locknut (23) on the return mounting tube (25) to align the rods.

Tighten the locknuts securely, being careful not to change the alignment.

3. Tighten the coupling nut (Q) onto the plunger (R).

4. Connect the power supply to the motor and operate the pump slowly. Adjust the locknuts 123) on the return mounting tube 125) pump operates smoothly motor and a No. €0 (0.040 as necessary until the between the bearing (34) (20), all around the rod. See Detail A, Fig 7. Tighten the locknuts securely.

5. Remount the pump and connect all hoses.

6. Reconnect the ground wire if during repair. it was disconnected

7. Fill the packing nutlwet-cup 113 full of Graco

Throat Seal Liquid.

20

PARTS LIST

Model

Model

218-076 Stubby items 1

- 34

Length

DESCRIPTION

NO. NO.

QTY

1 169-455 PLATE, designation

2 100-508 SCREW, drive, type "U"; No. 4 x

3

4

5

6

7

8

9

10

11

3/16"

179-884 PLATE, identification

054-104 TUBE

103-875 ADAPTER, hose, barb; 1/8 npt

101-330 SCREW, drive, Type

114"

" U ;

37O flarex3/4-16 UNF-2a

106470 ELBOW, thd for

No.

100-133 LOCKWASHER, 318"

217-222 VISCOUNT RECIPROCATOR

112"

2 diameter tube

217-221 TUBE, fluid: cpld 3/4-16 UNF-2a. flare x

See manual 307-654 for parts

107-195 ADAPTER, str. thd; 71E14 UNF-2a;

W o

1

4

1

6f1

1

1

1

1

1

12

13

14

15

16

17

16

19

20

21

22

23

24

25

26

27

29

34

107-197

104-582

104-029

179-882

168-221

107-226

179-883

102-021

218-105

218-106

166-724

162-647

162-649

166-723

162-646

107-196

100-103

179-881

106-292

TEE, run, str; 3/4-16 UNF-2a: 37O flare x 3/4-16 UNF-2a

WASHER, tab

CLAMP, grounding

BASE, motor, hydraulic

ROD, tie; 5-314" 1146

CUP, suction

BASE, adapter, hydr. motor

LOCKNUT, 3/8"

CONNECTING ROD; mml

8" 1203

23.5' mm) lg

(597 mm)

TUBE, supply, 4-13/16 1121

For pump 216-076 only mm)

For pump 218-074 only

PUMP, displacement

See separate instruction manual lg;

I626 mml Ig;

Ig;

TUBE. supply, 20-5/16 1516 mm) Ig;

307-651

NUT, 3/4" thread

LOCKWASHER

TUBE, return, 9.118' (229 mml

For pump 218.076 only

TUBE, return, 24-518"

For pump 218-074 only

O-RING, packing

PIN, cotter

TUBE

SHIELD

BEARING

1

1

1

1

1

2

2

1

4

1

1

1

1

1

1

Order Parts you by name and series letter of the assembly for n

~~.

~

3

1

1

3

1

1

1

1

CONVERSION KITS-Viscount I

260 and

3 1 President

These kits convert drum length and stubby length old- style Viscount I 250 hydraulic pumps and 3:l President air-powered pumps to the new-style Viscount I 250 pump end hydraulic reciprocator. In addition to the kit, order the new hydraulic reciprocator, fluid tube and fluid tube fittings separately.

Drum Length Pump

Conversion Kit 218-211

For converting Viscount I

President 3:1,-Model items

250.

205-000, from parts list for Model

In addition to the kit,

Model

Model

'

208-300, order items 8 thru parts list. and and

12

34 from

Installation

Disconnnect the displacement pump from the motor as described in the instruction manual which came with your original pump or refer to Disassembly on page this manual.

8 of

Assemble the parts in the kit as shown in Fig 7 and assemble the new motor to the motor base as instructed in the service saction of the motor instruction manual,

307-622.

Stubby Length Pump

Conversion Kit 218-212

For converting Viscount I

President

Model

3:l.

Kit includes

Model items

218-076

250, Model 208-243,

1-7, 13-16, 17-20, 26-31, from Darts list for Model

In addition to the kit, order items

Darts list.

8 thru and

12 and

34 from structed in Reassembly on page 8 of as in- this manual.

ROD 8 CYLINDER CONVERSION for Severe Duty Applications

Substitute this rod and cylinder for those in the stan- dard 206-658 displacement pump when better abrasion resistance is needed.

Order these parts: 175-006 Rod

Cylinder

ACCESSORIES

(Must be purchased separately)

GROUNDING CLAMP 103-538

GROUND WIRE

25 ft (7.6

208-950

Ig.. 12 ga.

55 gallon

REF PART

NO.. NO.

DESCRIPTION a n

1

5

8

100-220

176-684

159-100

161-377

THUMBSCREW

ELBOW,

156-592 TUBE,

W0; riser

O-ring screen retainer

1

1

1

1

214906 and DRUM COVER

TSL THROAT SEAL LIQUID

Non-evaporating solvent for wet-cups.

206-995

206-996 1 gallon (3.8 liter) size

HYDRAULIC SUPPLY AND RETURN HOSE

5/8 in. ID, 3/4 grounded: for return line npt x 7/8', 90° swivel elbow, iSW psi (104

180-091

180-092 bad MAXIMUM feet (0.9

6 feet (1.9 ml lona mj Ions

WORKING PRESSURE

1/2 in. ID, coupled 1/2 nptfrn) x elbow, grounded; for supply line

2WO

3 feet (0.9 m) long

3/4", 90" swivel

1138 bad MAXIMUM WORKING PRESSURE

180-093 6 feet (1.9 m) long

GRACO-APPROVED HYDRAULIC FLUID

169-236 5 aal. (20 liter)

WALL MOUNTING BRACKET 206-221

DIMENSIONAL DRAWING

A n. mml

HYDRAULIC SHUT-OFF VALVES

102-644 3/4 npt(f); for supply line

102-645 1" npt(f); for return line

MOUNTING GASKET 179-875

Use with Viscount I Pumps when mounting on pump stand.

MOUNTING HOLE LAYOUT

4 - 1 / 4 I108 mml DIA CUTOUT

TWO 5 / 1 5

5 1127 base has

I8 mml mml dia holes on bolt circle:

1/2-20 tapped holes.

TECHNICAL DATA

Maximum hydraulic input pressure

Maximum pump output pressure

: 1000 psi

: 250 psi

170

(17 bar) bar)

Hydraulic fluid consumption rate : 6.5 ounces (0.195 liter) per cycle or a gallon per 19.5 cycles

PumD cycles Der Qallon

Flow rate at

(3.8

60 liter)

CPM

Wened Parts

Weight

: 6

: M) cycles per minute

:

:

10 gpm (38 literlmin) literlmin)

Nitralloy, Steel, Copper, Bronze "

Nitrile Rubber

: Model278-074;

Model278-076; 48

Ib

Ib ( 2 2

Kg)

Kg)

PTFE Leather,

THE GRACO WARRANN

Graco Inc. warrents for a period of 12 all equipment manufactured by it and bearing its name months from the date of purchase and applies only when the equipment is insrelied and accident, substitution of non-Graco Pam. faulty installation or tampering, be free from defects in material and workmanship under normal usn and sarvica. This warranty extends to the original purchaser operated in accordance with written factory recommendations. This warranty does not cover damage or waar which, in tha reasonable judgment of Graco. arisns from misusn. abrasion. corrosion, negligence.

This warranty is conditioned upon the prepaid return of the aquipmem ciaimed to be dafectiva for examination by Graco to verify the claimed defect. If the claimed defect is verified. Greco will repair or replace free of charge. any defective parts. The equipment will bs returned to the original purchaser transponation prepaid. material, rapairs will bs made at a reasonable charge and return transportation will be charged.

THIS LIMITED WARRANN

PRESS

OF

OR

LIABILITY FOR

EXCLUSIVE, AND IN LIEU ANY OTHER WARRANTIES (EX-

IMPLIED1 INCLUDING WARRANTY OF MERCHANTABILITY

FITNESS 'FOR A PARTICULAR PURPOSE AND

OF

OR

OR

OR WAARANN OF

ANY NDN-CONTRACTUAL LIABILITIES

STRICT LIABiLIN. EVERY

EQUIPMENT NOT COVERED BY GRACO WARRANN. Accessories or components of equipment sold by Graco that ara not manufactured by Gmco lsuch a8 electric motors, switchas, hose, atc.1 ara subject

Factory Branches:Atlente.

Subsidiary and Affiliate

Detroit. Lo6 Angelas. Celdwell 1N.J.J

Companies:Canada: England: Switzerland: France: Germany: Hong Kong; Japan

GRACO INC. P. 0. Box 1441 MINNEAPOLIS,

PRINTED IN U S A . 307-624 3-84 Revised 884

MN 55440-1444