Graco 312484C User's Manual
Contents
1. 1 3 8 in 34 9 mm STOKES pr i el a ES 4 in 101 6 mm Thrust at 1 500 psi 10 MPa 102 bar 2 220 Ib 9 875 N Weight tak eis haa eG kate peta tba ee 17 5 lb 7 93 Kg Loctite is a registered trademark of the Loctite Corporation Perma Loc and Perma BondP are registered trademarks of Perma Loc Company 14 312484C Notes Notes 312484C 15 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use With the exception of any special extended or limited warranty published by Graco 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 the2. ti11189b 12 312484C Model 255435 Series A Ref No 1 18 24 30 31 32 33 34 35 36 37 38 Part No 106274 178207 178226 108014 105765 188070 112342 112340 112341 104093 103147 178179 106276 155685 106292 100133 178181 106470 236419 178229 113584 189073 189074 189075 110792 312484C Description VALVE spool O RING buna N BALL carbon steel YOKE valve BEARING piston bronze filled PTFE SEAL piston glass filled PTFE O RING buna N O RING buna N ROD displacement LABEL warning RETAINER spring SPRING compression BEARING rod bronze filled PTFE PACKING block nitrile rubber WIPER rod nitrile rubber PISTON ROD trip SPRING compression SLEEVE valve O RING buna N PLUG pipe WASHER sealing SCREW cap hex hd 3 8 24 unf 2a 0 625 16 mm long O RING buna N STOP valve SCREW cap socket hd 10 24 unrc 3a 0 625 16 mm long NUT hex 3 8 24 unf 2b WASHER lock 3 8 in size PLATE cap CAP cylinder top ELBOW 90_ 3 4 16 unf 2a fits 1 2 in 13 mm diameter tube TUBE inlet w 3 4 16 unf 2b fittings CYLINDER TEE 3 4 16 unf 2a CAP cylinder bottom RETAINER housing ROD tie ELBOW 90_ 7 16 20 unf 2a x 9 16 18 unf 2a fits 3 8 in 10 mm diameter tube Qty N a m m m k k k LU k k k ek esk k CO CO M D k m m k k Ref No 39 48 49 50 52 53 Part No 236420
3. 26 and let dry for 3 to 4 minutes Apply 1 or 2 drops of thread sealant to the female threads of the spool S Install the stop 25 and torque the screws 26 to 42 to 45 in lb 4 7 to 5 1 Nem 10 To assemble the valve mechanism use Repair Tool 189305 as follows a Slide the yoke 4 into the repair tool as shown in the Detail in Fic 2 Align the upper detent holes H of the yoke with the center line of the tool b Insert the spring 18 and one ball 3 into the valve stop 25 Tilt the valve stop and start guiding it into the tool making sure the ball is sliding into the rounded slot in the tool c Place the second ball 3 at the other end of the spring 18 and push it in with your thumb while rotating the valve stop 25 until the spring is horizontal and the balls are in place Continue holding this assembly together d Align the curved ends of the yoke with the valve sleeve groove then press the assemblies firmly together Make sure the balls snap into the upper detent holes H of the yoke 4 and the curved ends of the yoke engage the valve sleeve 19 groove To remove the tool slide it over the trip rod 17 11 Place the bottom cylinder cap 35 in a vise Install the o ring 2 in the cap Set the cylinder 33 on the bottom cap 12 Install the o ring 2 in the top valve spool 1 Make sure the hydraulic fittings 31 34 and 38 are ori ented as shown in FiG 1 then slide the displace
4. ment rod 9 and piston 16 into the cylinder 33 until it seats in the top cap When inserting the piston into the cylinder carefully guide the piston seal 6 and bearing 5 to pre vent damage to these parts 13 Install the tie rods 37 If the nuts and washers were removed screw them onto the ends with short threads 14 Remove the plugs from the fluid fittings 31 34 and 38 Install the tubes 32 39 and tighten the four fluid tube nuts N 15 Install the hydraulic motor on the pump as explained in the separate system manual 312484C A Spring faces up A Lips face up A Apply thread sealant to female threads A Torque to 54 to 56 in lb 6 1 to 6 3 Nem A Wide end faces yoke 4 Service A Apply primer to threads and let dry 3 to 4 minutes Apply 1 or 2 drops of thread sealant to female threads Torque to 42 to 45 in lb 4 7 to 5 1 Nem A Torque to 30 to 40 ft lb 41 to 54 Nem 29 38 A 24 A VY A 22 Seas AU PAS PISM 26 A M LS RA I R T 3 18 6AA 1 an un L 5 LK pi j p H ca l J L a m 33 A eal mame a ae LJ 2 11 5 tk 6 48 ti11188a 13 AFP i SLI OZ m A AN 36 a 4 ti11190a 15 A TEAN Fic 2 312484C 11 Viscount Hydraulic Motor Parts Viscount I Hydraulic Motor Parts Model 255345 Series A
5. 112561 113585 191216 189305 Viscount Hydraulic Motor Parts Description TUBE drain w 9 16 18 unf 2b fit tings NUT hex self locking 1 4 28 UNF 2B PACKING block urethane ELBOW 90_ 7 8 14 unf 2a x 3 4 16 unf 2a PLATE tie TOOL assy used to assemble Kit 247557 Qty 1 These parts are included in Repair Kit 247557 which may be purchased separately See manual 312486 A Replacement Danger and Warning labels tags and cards are available at no cost 13 Accessories Accessories NOTE Use Only Genuine Graco Parts and Accesso ries Graco Approved Hydraulic Fluid Premium ISO Grade 46 petroleum based hydraulic oil containing rust and oxidation exhibitors and anti wear agents 210 F 99 C Flash Point Parts Description 169236 5 gallon 20 liter 207428 1 gallon 3 8 liter Technical Data Maximum hydraulic fluid input pressure 1 500 psi 10 MPa 102 bar Maximum hydraulic fluid input volume 3 gpm 11 3 liter min Fluid consumption rate eee 6 5 ounces 0 195 liter per cycle or 1 gallon per 19 5 cycles Minimum operating temperature 40 F 40 C Maximum water content of hydraulic fluid 1 percent Maximum fluid temperature 130 F 54 C Effective piston area 1 48 sq in 9 55 cm Piston rod diameter
6. 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 DISCLA
7. part of the gun firmly to the side of a grounded metal pail and trigger the gun to relieve pressure 6 Engage the gun safety latch 7 Open the drain valve required in your system and have a container ready to catch drainage 8 Leave the drain valve 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 very slowly loosen the hose end coupling and relieve pressure gradually then loosen completely then clear the valve or hose 312484C Troubleshooting Troubleshooting Problem Cause Solution Hydraulic Motor stops running Worn valve or valve balls 3 broken valve spring 18 Repair valve See page 8 Broken trip rod 17 spring 12 or retainers 11 Repair valve See page 8 Poor performance or reduced effi ciency Worn piston seals 5 6 7 Repair valve See page 8 Oil leaking around cylinder Worn cylinder o rings 2 Replace o rings See page 8 Oil leaking around inlet or return tube fittings Loose fittings or worn fitting o rings 31 34 and 38 Tighten nuts 27 See page 10 Excessive oil in drain bottle or bottle needs frequent emptying Worn seals 2 15 14 and 49 in bot tom cylinder cap Replace seals See page 8 Service Required Tools e Set of allen wrenches e Set of sock
8. system 4 Pull the top valve spool 1 cylinder 33 and dis placement rod 9 together off the bottom cylinder cap 35 Remove the o ring 2 from the bottom cap 5 Grasp the valve spool 1 and pull the cylinder 33 off Slide the cylinder off the displacement rod 9 Be careful not to damage the rod Remove the o ring 2 from the valve spool 6 Lay the valve spool 1 and displacement rod 9 on a table Place a clean rag around the yoke 4 to prevent the detent balls 3 from popping out Push the yoke 4 sideways off the valve sleeve 19 while holding the balls 3 and spring 18 with the rag then carefully remove the balls and spring 7 Inspect the valve sleeve 19 valve stop 25 and spool S for damage See Fic 2 If any of these parts requires replacement unscrew the two screws 26 holding the stop 25 to the spool S Remove the stop and slide the sleeve 19 off the spool If the spool is damaged replace the valve spool 1 NOTE If any of these parts are being reused thor oughly clean any adhesive residue from the screws and female threads of the spool Use a surface cleaner such as chlorinated solvent on the threads and blow dry with compressed air If necessary use a 10 24 unc 2b tap to remove adhesive from the female threads 8 Remove the capscrew 23 sealing washer 22 and o ring 24 from the cap plate 29 Lift off the cap plate and remove the o ring 20 9 Hold the flats of
9. your hand over the spray tip Do not stop or deflect leaks with your hand body glove or rag Do not spray without tip guard and trigger guard installed Engage trigger lock when not spraying Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment MOVING PARTS HAZARD ag Moving parts can pinch or amputate fingers and other body parts e Keep clear of moving parts e Do not operate equipment with protective guards or covers removed e Pressurized equipment can start without warning Before checking moving or servicing equipment follow the Pressure Relief Procedure in this manual Disconnect power or air supply BURN HAZARD z Equipment surfaces and fluid that s heated can become very hot during operation To avoid severe burns do not touch hot fluid or equipment Wait until equipment fluid has cooled completely 312484C 3 Warnings LE he FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help prevent fire and explosion e Use equipment only in well ventilated area e Do not fill fuel tank while engine is running or hot shut off engine and let it cool Fuel is flammable and can ignite or explode if spilled on hot surface Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential stat
10. IMS 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 In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equipment hereunder or 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 FOR GRACO CANADA CUSTOMERS The Parties acknowledge that they have required that the present document as well as all documents notices and legal proceedings entered into given or instituted pursuant hereto or relating directly or indirectly hereto be drawn up in English Les parties reconnaissent avoir convenu que la r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s a la suite de ou en rapport directement ou indirectement avec les proc dures concern es Graco Information For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or cal
11. Instructions Parts o GRACO Viscount Hydraulic Motor 312484C EN Model 255345 Series A 1500 psi 10 MPa 102 bar Maximum Hydraulic Input Pressure Important Safety Instructions Read all warnings and instructions in this manual Save these instructions ti10714a CE PROVEN QUALITY LEADING TECHNOLOGY Table of Contents WarmingS cici a RR irere katedran aknen la 3 Installation 5 59 KS 90 CR 5 5 e RR a RT 5 General Information eee 5 Grounding ccc eee eee 5 Startupo a SEE eee ahd os Meelis 5 Pressure Relief Procedure 6 Troubleshooting 4 2au1141111112 7 SERVICE wada Gia ta a ma ta eta 7 Required Tools 7 Hydraulic Motor Disassembly 8 Hydraulic Motor Reassembly 10 Viscount I Hydraulic Motor Parts 12 Accessories ss x x e x 0 cece ee eee eee eens 14 Graco Approved Hydraulic Fluid 14 Technical Data 14 Notes ri deed dres RE ea ae ee ra 15 Graco Standard Warranty 16 Graco Information 16 2 312484C Warnings Warnings The following warnings are for the setup use grounding maintenance and repair of this equipment The exclama tion point symbol alerts you to a general warning and the hazard symbol refers to procedure specific risk Refer back to these warnings Additional product specific warnin
12. et or box wrenches e Adjustable wrench e Torque wrench e Spanner wrench e O ring pick e 10 24 unc 2b tap e Vise e Shallow metal or plastic pan approx 12 x 20 in e Repair Tool 189305 see page 14 e Thread lubricant e Lithium base grease e Fresh Loctiter 242 thread sealant a Primer T or Perma Locr 115 thread Perma Bondr Surface Conditioner e Chlorinated solvent 312484C nd Loctiter sealant and Service Hydraulic Motor Disassembly NOTE Repair Kit 247557 is available For best results use all the parts in the kit Kit parts are marked with an asterisk in the Parts List When disassembling lay out all parts in sequence to make reassembly easier Clean and inspect all parts for wear or damage before reassembling Replace as nec essary 1 Remove the hydraulic motor from the pump as explained in the separate system manual Lay it on its side in a pan 2 Unthread the tie rods 37 from the retainer 36 and the tie plate and pull them out through the top of the hydraulic motor It will be necessary to remove the lower four nuts 27 and lockwashers 28 3 Unscrew the four fluid tube nuts N and remove the tubes 32 39 See Fic 1 Allow excess oil to drain from the hydraulic motor then plug the fluid fittings Keep the hydraulic system clean Always plug the hydraulic inlets outlets and lines when disconnect ing them for any reason to avoid introducing dirt and other contaminants into the
13. ference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing Always use Genuine Graco Parts and Accessories available from your Graco distributor Grounding e Pump Use a ground wire and clamp See separate system manual e Hydraulic and fluid hoses Use only electrically conductive hoses e Hydraulic power supply Follow manufacturer s recommendations e Spray gun Ground through connection to a prop erly grounded fluid hose and pump e Fluid supply container Follow your local code e Object being sprayed Follow your local code e Solvent pails used when flushing Follow your local code Use only metal pails which are conduc tive 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 e To maintain grounding continuity when flushing or relieving pressure hold a metal part of the spray gun firmly to the side of a grounded metal pail then trigger the gun 312484C Installation Startup Before each use check the hydraulic fluid level and add fluid as necessary to fill the lines FIRE AND EXPLOSION HAZARD If hydraulic oil becomes too hot it can reach its flash point and cause a fire Operating at too high an oil tem perature can also cause faster motor seal wear and leakage The recommended hydraulic oil operating temperature is 80
14. gs may be found throughout the body of this manual where applicable EQUIPMENT MISUSE HAZARD M Misuse can cause death or serious injury e Do not operate the unit when fatigued or under the influence of drugs or alcohol e Do not exceed the maximum working pressure or temperature rating of the lowest rated system com ponent See Technical Data in all equipment manuals e Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturer s warnings For complete information about your material request MSDS forms from distributor or retailer e Check equipment daily Repair or replace worn or damaged parts immediately with genuine manufac turer s replacement parts only Do not alter or modify equipment Use equipment only for its intended purpose Call your distributor for information Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work area Comply with all applicable safety regulations e Le o o o SKIN INJECTION HAZARD N High pressure fluid from gun hose leaks or ruptured components will pierce skin This may look like just a cut but it is a serious injury that can result in amputation Get immediate surgical treatment Do not point gun at anyone or at any part of the body Do not put
15. ic arc e Keep work area free of debris including solvent rags and gasoline s Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present Ground all equipment in the work area See Grounding instructions Use only grounded hoses Hold gun firmly to side of grounded pail when triggering into pail If there is static sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem s Keep a working fire extinguisher in the work area TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin inhaled or swal lowed e Read MSDS s to know the specific hazards of the fluids you are using e Store hazardous fluid in approved containers and dispose of it according to applicable guidelines e Always wear impervious gloves when spraying or cleaning equipment PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating servicing or when in the operating area of the equipment to help protect you from serious injury including eye injury inhalation of toxic fumes burns and hearing loss This equipment includes but is not limited to e Protective eyewear e Clothing and respirator as recommended by the fluid and solvent manufacturer e Gloves e Hearing protection 312484C Installation General Information Re
16. l 1 800 690 2894 to identify the nearest distributor 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 For patent information see www graco com patents Original instructions This manual contains English MM 312484 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES e P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 2007 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revised September 2012
17. the displacement rod 9 in a vise and use a spanner wrench in the pin holes of the piston 16 to screw it off the rod Remove the trip rod 17 from the displacement rod Be careful not to scratch the outside of the displace ment rod 10 Unscrew the nut 48 and remove the retainers 11 and spring 12 from the trip rod 17 11 Slide the piston 16 off the trip rod 17 Remove the bearing 5 seal 6 and o rings 7 and 8 from the piston 12 Inspect the yoke 4 and trip rod 17 for damage If either part requires replacement slide the yoke into Repair Tool 189 305 and set the tool in a vise See FIG 2 Use a wrench on the flats of the trip rod and unscrew the rod from the yoke 13 Pull the housing retainer 36 away from the bottom cylinder cap 35 14 Remove the block packings 14 and 49 wiper 15 bearing 13 and o ring 2 from the housing retainer and bottom cylinder cap 312484C Service m 06 Gim 9 W ti11189b FiG 1 312484C Service Hydraulic Motor Reassembly 1 10 Install the block packing 14 and wiper 15 in the housing retainer 36 The spring of the block pack ing and the lips of the wiper must face up Install the o ring 2 on the top surface of the retainer See FIG 2 Install the bearing 13 and block packing 49 in the bottom cylinder cap 35 The lips of the block packing must face
18. to 115 F 27 to 45 C If the oil tem perature approaches 130 F 54 C shut off the motor and check the hydraulic oil supply cooling system fil ters etc Clean or repair as needed Always use Graco approved Hydraulic Oil or equivalent see Accessories 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 oxi dation inhibitors and anti wear agents Before using any other type of oil in this equipment call your Graco distributor Unauthorized use of lesser grade oil or sub stitutes will void the warranty Installation Pressure Relief Procedure ao SKIN INJECTION HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acciden tally 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 e are instructed to relieve the pressure e stop spraying e Check or service any of the system equipment e or install or clean the spray tip 1 Engage the gun safety latch 2 Shut off the hydraulic power supply 3 Close the supply line shutoff valve and then the return line shutoff valve 4 Disengage the gun safety latch 5 Hold a metal
19. up Reassemble the housing retainer 36 and the bot tom cylinder cap 35 To reassemble the yoke 4 and trip rod 17 clean the threads with primer or chlorinated solvent and let dry for 3 to 4 minutes Apply thread sealant to the female threads of the yoke Slide the yoke into Repair Tool 189 305 and place the tool in a vise Using a wrench on the flats of the trip rod screw the rod into the yoke Torque to 54 to 56 in lb 6 1 to 6 3 Nem Install the bearing 5 o ring 7 and seal 6 on the piston 16 Install the second o ring 8 on the underside of the piston Slide the piston onto the trip rod 17 so the wide end of the piston faces the yoke 4 Install the retainers 11 and spring 12 on the trip rod 17 Thread the nut 48 onto the rod until it runs out of thread so that it bottoms out on the shoulder of the rod See the Detail in FIG 2 Hold the flats of the displacement rod 9 in a vise Slide the trip rod 17 into the displacement rod Use a spanner wrench in the pin holes of the piston 16 to screw it into the displacement rod Torque to 30 to 40 ft lb 41 to 54 Nem Install the o ring 20 in the top cylinder cap 1 then install the cap plate 29 o ring 24 sealing washer 22 and capscrew 23 To reassemble the valve sleeve 19 and valve stop 25 slide the sleeve 19 onto the valve spool S Either side of the sleeve can face up Apply primer to the threads of the screws
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