Graco 308112G High Pressure Dispense Valve Owner's Manual

Contents
Parts
INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
308112
Rev. G
First choice when
quality counts.t
INSTRUCTIONS
High Pressure Dispense Valve
8000 psi (55 MPa, 552 bar) Maximum Working Pressure
Model 223903 Series B, 1/4 npt fluid inlet
Model 224132 Series B, 3/8 npt fluid inlet
06634
GRACO INC.
P.O. BOX 1441
MINNEAPOLIS, MN
ECOPYRIGHT 1990, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
55440–1441
Table of Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Graco Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Graco Phone Number . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Symbols
Warning Symbol
Caution Symbol
WARNING
CAUTION
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
D This equipment is for professional use only.
D Read all instruction manuals, tags, and labels before operating the equipment.
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 Do not exceed the maximum working pressure of the lowest rated system component. This equipment has a 8000 psi (55 MPa, 552 bar) maximum working pressure.
D Check equipment daily. Repair or replace worn or damaged parts immediately.
D Handle hoses carefully. Do not pull on hoses to move equipment.
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_F).
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
D Do not use a low pressure flexible extension on a high pressure dispensing valve.
D Do not attempt to force lubricant into a fitting.
2
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WARNING
INJECTION HAZARD
Spray from the valve, 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.
D Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medical attention.
D Do not point the valve at anyone or at any part of the body.
D Do not put your hand or fingers over the grease fitting coupler.
D Do not stop or deflect leaks with your hand, body, glove or rag.
D Tighten all fluid connections before operating the equipment.
D Check the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
Do not repair high pressure couplings; you must replace the entire hose.
D Use only Graco approved hoses.
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.
D Know the specific hazards of the fluid you are using.
D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
Pressure Relief Procedure
WARNING
INJECTION HAZARD
Fluid under high pressure can be injected 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:
D
D
D
D
1. Turn off the power supply to the pump.
2. Trigger the valve into a waste container to relieve
pressure.
3. Open any bleed-type master air valves and fluid
drain valves in the system.
4. Leave the drain valve open until you are ready to
dispense again.
are instructed to relieve the pressure,
stop dispensing,
check or service any of the system equipment,
or install or clean the nozzle.
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3
Operation/Service
This dispense valve provides positive control of high
pressure lubricants. When supplied with air, the pump
will start when the valve is triggered and will stall
against pressure when the trigger is released.
CAUSE 2: Valve ball or seat may be
obstructed, or spring may be weakened.
NOTE: Check all parts thoroughly when disassembling, and carefully replace any that are worn or damaged.
2. Disconnect the hose from the valve.
1
0.187” (4.7 mm)
clearance
2
Torque to 30–35 ft-lb
(40–47 NSm)
3. Unscrew the lower body (11) from the upper body
(14). Remove the ball (2) and valve seat (10). The
valve seat may be reversed at reassembly to
provide a new seat.
4. If the spring (6) needs to be replaced, unscrew the
outlet adapter (7) and insert the new spring. See
the Parts Drawing on page 5.
3
1
1. Relieve the pressure.
5. Reassemble the valve in the reverse order of
disassembly. Torque the lower body (11) to 30–35
ft-lb (40–47 NSm).
7
1
PROBLEM B: Grease leaks past the valve
stem o-ring and backup.
11
2
13
CAUSE: Valve stem or o-ring may be worn
or damaged.
1. Relieve the pressure.
06634
Fig. 1
2. Disconnect the hose from the valve.
PROBLEM A: Grease continues to flow
after the trigger is released.
CAUSE 1: Valve may be out of adjustment.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 3.
1. Relieve the pressure.
2. Check for a minimum 0.187 in. (4.7 mm) clearance
between the trigger (13) and the outlet adapter (7).
See Fig. 1.
3. To adjust the clearance, loosen the locknut (1) and
turn the adjusting screw (3) in or out as needed.
Hold the adjusting screw in place and securely
tighten the locknut.
4
308112
3. Unscrew the lower body (11) from the upper body
(14). Remove the ball (2).
4. Loosen the locknut (1) and remove the adjusting
screw (3). Insert a small diameter rod through the
adjusting screw hole and push the valve stem (8)
out of the body. Use a hooked wire to remove the
o-ring (5) and backup (9) from the body, if necessary.
NOTE: Do not lose the small ball when removing
the stem.
5. Use a 0.25 in. (6.4 mm) diameter rod to position
the backup and o-ring, one at a time, all the way
up into the cavity. Insert the valve stem so that it is
flush with to top of upper body (14). Install the ball.
Replace the adjusting screw. Continue reassembling the valve. Torque the lower body (11) to
30–35 ft-lb (40–47 NSm). Adjust the trigger clearance. See Problem A at left.
Parts List and Drawing
6
12
14
1
3
22
9
13
5
7
8
2
10
4
24a
21
24b
16 22
15
11
06635
Ref.
No.
1
2†
3
4†
5†
6
7*
8†
9†
10†
11
12
13
Part No.
Description
100015
111519
101618
151222
157628
160804
160805
160806
160807
191603
NUT, hex; 1/4–20
BALL, steel, 1/8 (3.2 mm) dia
SETSCREW, soc hd; 1/4–20 x 5/8
GASKET, copper
O-RING, nitrile rubber
SPRING, compression
ADAPTER, outlet; 1/8 npt
STEM, valve
BACK-UP; leather
SEAT, valve
BODY, lower
Model 223903 only
Model 224132 only
PLATE, scuff
TRIGGER, valve
186525
186786
164386
186651
Ref.
No.
Part No.
Description
1
1
1
1
1
1
1
1
1
1
14
15
16
21
22
24
165594
109018
186523
186524
111280
200389
BODY, upper
O-RING, nitrile rubber
PIN, pivot
SPACER
NUT, locking
ADAPTER
Includes items 24a, 24b
. TUBE, adapter (not sold separately)
. COUPLER
See manual 306708 for parts
1
1
1
1
* Recommended tool box spare parts. Keep these spare
parts on hand to reduce down time.
Qty.
24a
24b
200325
Qty.
1
1
1
1
2
1
1
1
† Parts included in repair kit 204161.
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5
Notes
6
308112
Manual Change Summary
This manual went from Rev. F to Rev. G to add callout 21 to the parts list on page 5
308112
7
Graco Warranty and Disclaimers
WARRANTY
Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects
in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. Graco will,
for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear
caused by faulty installation, 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 of Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, 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 claimed defect. 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.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no
other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two
(2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS
SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors,
switches, hose, etc.) are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.
For Sales to Canadian Customers:
Except as expressly stated herein, Graco makers no representations, warranties or conditions, express, implied or collateral, concerning any goods or services sold, and GRACO SHALL NOT BE LIABLE IN ANY MANNER FOR any other representation,
warranty or condition of any kind, whether arising by operation of law or otherwise, including but not limited to, WARRANTIES OF
MERCHANTABLE QUALITY OR FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF LIABILITY
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or for the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of
contract, breach of warranty, the negligence of Graco, or otherwise.
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to
you: 1–800–367–4023 Toll Free
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Sales Offices: Minneapolis, Detroit
Foreign Offices: Belgium, Korea, Hong Kong, Japan
GRACO INC.
P.O. BOX 1441
PRINTED IN U.S.A.
8
308112
308112
MINNEAPOLIS, MN
55440–1441
December 1990, Revised February 2000

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