Graco 208357 Motor User Manual
Contents
1. 5 Remove the four screws 13 and lockwashers 7 from the detent housing 45 Carefully lift the housing so the rollers 4 and axles 52 do not fall out Remove the rollers axles washer 27 and rubber pad 28 8 307049 Model 208356 Shown 07268 Fig 3 Service NOTE Refer to Fig 4 for steps 6 to 9 6 To prevent the spring loaded director valves 37 from popping out of the air valve housing 30 hold them in with your fingers Lift the air valve housing and rotate it 90 so it rests on the manifolds 41 Remove your fingers slowly allow ing the valve springs to release gently Remove and inspect the director valves 37 o rings 17 and springs 26 A CAUTION Be careful not to damage the surface of the trip rod 22 which would restrict its free movement Special padded pliers Part No 207579 are available 7 Pull the trip rod 22 up and grasp it with the padded locking pliers order Part No 207579 below the hub 35 Hold the flats of the hub with a wrench screw off the trip rod nut 81 and remove the air valve housing 30 Remove the lockwasher 9 and screw off the hub Now release the pliers 8 Remove the two screws 8 and lockwashers 9 from each air manifold 41 Remove the manifolds and gaskets 38 from the cylinder 44 A WARNING The openings in the valve plates 47 are very sharp Be careful not to cut yourself 9 Remove and check the valve pl2. 7 and screws 13 51 Tighten securely p 19 Grease the guides 33 and install with the springs 34 into each side of the detent housing 45 Screw the retainers 32 into both sides of the housing they should readily screw all the way into the housing by hand If they do not the detents are not assembled correctly inspect and correct 13 any misalignment Now firmly tighten the retainers 32 A WARNING MOVING PARTS HAZARD Do not operate without the air motor shield in place Pinching or amputation of fingers or hands may occur See MOVING PARTS HAZARD on page 3 20 Install the grommet 40 air motor shield 51 and the air inlet fitting 3 Install the screws 10 Reconnect the ground wire 21 Before connecting the displacement pump con nect an air hose to the motor and run it slowly to check for smooth operation AN Grease 07268 Fig 10 18 307049 Notes 307049 19 Parts Model 902098 Series A Model 208356 Series J Includes items 1 69 AN Lips of V Packing Must Face Down AN Lips of V Packing Must Face Up 25 03334A 20 307049 Model 902098 Series A Model 208356 Series J Includes items 1 69 Part No 204649 206710 207648 169585 100018 100052 100101 100133 113161 100424 101713 101716 102726 150647 156698 180952 161435 161556 161559 161560 214852 16156
3. i Keep these spare parts on hand to reduce down time A Replacement Danger and Warning labels tags and cards are available at no cost The 290331 label is also available in the following languages German Part No 290396 French Part No 290397 Spanish Part No 290398 Na POPP H ja YHNMND A A Amma OO 307049 23 Model 625794 Series A Include items 1 69 AN Lips of V Packing Must Face Down eS a AN Lips of V Packing Must Face Up J wae 9454A 24 307049 Model 625794 Series A Include items 1 69 Ref No Part No 1 204649 2 7 206710 3 115235 4 169585 6 100018 7 103780 8 100101 9 100133 10 102235 11 100424 13 513059 14 101716 15 102726 16 150647 17 156698 18 180952 19 161556 20 161559 21 161560 22 214852 23 161562 24 161563 25 161569 26 161575 27 161576 28 161577 29 161578 30 161585 31 161586 32 161587 Description BEARING PISTON ASSY UNION 90 adapter 3 4 npt m x 3 4 npsm f swivel ROLLER axle LOCKWASHER spring 1 2 LOCKWASHER spring 7 16 SCREW hex hd cap 3 8 1 x 1 long LOCKWASHER spring 3 8 SCREW hex hd cap 1 4 20 x 1 2 long SCREW hex hd cap 1 2 13 x 1 1 4 long SCREW hex hd cap 7 16 14 x 3 1 2 long SCREW flat hd machine no 10 24 x 1 2 long PLUG pipe socket hd 3 4 npt GASKET O RING buna N RING lift GASKET WASHER backup PACKING v block polyurethane ROD trip PACKI
4. yd Squirt oil around bearing 1 Squirt oil around bearing 1 Squirt oil around air valve 30 Hold paper strip over exhaust holes Worn trip rod packing 21 Damaged trip rod bearing gasket 16 Worn air valves 37 or o rings 17 Worn piston o ring 29 307049 7 Service A WARNING To avoid serious injury and equipment damage do not lift the equipment by the air motor lift ring if the total weight of the equipment exceeds 550 Ib 250 kg The lift ring cannot support that weight NOTE Repair kit 206734 is available For best results use all the new parts in the kit even if the old ones look good Parts included in the kit are marked with an asterisk for example 16 NOTE Inspect all parts as they are disassembled and replace any worn or damaged parts Disassembly A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 6 1 Relieve the pressure 2 Disconnect the displacement pump Disconnect the ground wire Set the motor upright on a work bench NOTE Refer to Fig 3 for steps 3 to 5 3 Remove the air inlet fitting 3 Remove the screws 10 and lift off the air motor shield 51 Remove the grommet 40 4 Unscrew the spring retainers 32 and remove the spring 34 guide 33 and plunger 46 from each side of the detent housing 45
5. 19 from the base 50 or 66 NOTE The connecting rod stud 36 is fastened to the piston shaft 2 with anaerobic sealant and may be 17 Turn the base over On Models 208356 and difficult to remove 625794 remove the wiper seal 25 Inspect the bearing 67 in place Remove only if damaged A CAUTION On Model 208357 only remove the packing retain er 63 spring 60 male gland 58 v packings Be careful not to damage the polished surface of the 61 female gland 57 bearing 64 and washer piston shaft 65 Refer to the parts drawing on page 22 10 307049 Service Model 208356 Shown Detail of Piston D a y do A 3 22 07270 eae Detail of Base 36 07274 A Clearance between the inside shoulders must be exactly 5 5 in 139 7 mm Fig 5 307049 11 Notes 12 307049 Service Reassembly NOTE On Model 208357 only install the washer 65 bearing 64 female gland 57 v packings 61 with 1 Clean all parts thoroughly and inspect for wear or the lips facing down male gland 58 spring 60 and damage Replace parts as necessary packing retainer 63 Refer to the parts drawing on page 22 NOTE Refer to Fig 6 for steps 2 to 6 4 On Models 208356 and 625794 grease the wiper 2 Turnth i ee UMA MMS base 20 o1 6e upside down seal 25 and press fit in the base
6. protect the hose from rupture caused by kinks or bends near the couplings MOVING PARTS HAZARD st Moving parts such as the air motor piston can pinch or amputate your fingers e Keep clear of all moving parts when starting or operating the pump e Before servicing the equipment follow the Pressure Relief Procedure on page 6 to prevent the equipment from starting unexpectedly 307049 3 A 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 Ground the equipment and the object being sprayed Refer to Grounding on page 5 If 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 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 Electrically disconnect all equipment in the spray area Extinguish all open flames or pilot lights in the spray area Do not smoke in the spray area Do not turn on or off any light switch in the spray area while operating or if fumes are present Do 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
7. 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 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 reconnais sent avo
8. 2 161563 161569 161575 161576 161577 161578 161585 161586 161587 Description BEARING PISTON ASSY UNION 90 adapter 3 4 npt m x 3 4 npsm f swivel ROLLER axle LOCKWASHER spring 1 2 LOCKWASHER spring 7 16 SCREW hex hd cap 3 8 16 x 1 long LOCKWASHER spring 3 8 SCREW hex hd flange 1 4 20 x 1 2 long SCREW hex hd cap 1 2 13 x 1 1 4 long SCREW hex hd cap 7 16 14 x 3 1 2 long SCREW flat hd machine no 10 24 x 1 2 long PLUG pipe socket hd 3 4 npt GASKET O RING buna N RING lift model 208356 only NUT cap model 902098 only GASKET WASHER backup PACKING v block polyurethane ROD trip PACKING v block buna N WASHER backup SEAL felt wiper SPRING compression WASHER flat PAD rubber O RING buna N HOUSING air valve NUT 3 8 24 RETAINER detent spring Qty hRonma oak N DNN a SH AH SH HS SH SH S S DS OOO Ref No Part No 33 161588 34 161589 35 161590 36 168180 37 168182 38 168183 39 168184 40 168185 41 168187 44 169372 45 177664 46 169583 47 169584 50 235995 195241 51 169588 52 169586 53 104029 54 104582 67 189059 684 290331 694 189991 i Keep these spare parts on hand to reduce down Description GUIDE spring SPRING compression HUB valve housing STUD connecting rod VALVE air director GASKET air manifold SEAL valve plate buna N GROMMET MANIFOLD air CYLINDER air
9. 50 3 On Models 208356 and 625794 if the bearing 67 was removed press fit the new bearing so its top 5 Turn the base upright Install the backup washer edge is flush with the shoulder S of the packing 24 in the base 50 or 66 Grease the v block cavity After installation measure the inner diame packing 23 and install it in the base so the lips ter of the bearing It must be uniformly 1 375 in face up 35 mm to ensure that the piston shaft does not bind If incorrect size the bearing while in place 6 Place the gasket 19 on the base 50 or 66 so this can be done with a 1 375 in diameter steel one of its notches K aligns with the optional fluid ball outlet L Model 208356 Shown AN Inner diameter of the bearing must be uniformly 1 375 in 35 mm A Grease A Lips of packing must face up AN Align notch K in gasket 19 with the optional fluid outlet L in the base 50 or 66 23 AAN 50 or 66 24 67 N 25 A LA 07271 _ Fig 6 307049 13 Service NOTE Refer to Fig 7 for steps 7 to 11 9 Regrease the inside of the cylinder 44 Carefully Paar turn the piston assembly and cylinder over and fe Grease ne mp rod 2 with ent water proof guide it into the base 50 or 66 Align one of the grease and slide it into the piston 2 shaft Clean f ee F cylinder s air channels M with the notch K in the ine trads ol the piston ang ie connecting Ton asket 19 and wit
10. Data Category Data Maximum Incoming Air Pressure 100 psi 0 7 MPa 7 bar Effective Piston Area 38 sq in 248 cm Piston Diameter 7 in 178 mm Stroke Length 4 75 in 121 mm Air Valves Dual slide type Valve Housing Balanced opposing seals and detent rollers Shipping Weight Model 208356 and 208357 74 Ib 33 3 kg Model 625794 78 Ib 35 1 kg 26 307049 Dimensions Models 208356 and 625794 Model 208357 3 4 npt f Air Inlet 3 5 88 9 mm 23 28 568 2 mm 06612 06613 Mounting Hole Layout Models 208356 and 625794 Model 208357 4 75 121 mm dia Four 0 406 10 3 mm dia holes on 5 75 146 mm bolt circle Use Gasket 161806 4 102 mm Four 0 437 11 1 mm dia holes on 10 5 267 mm bolt circle _ 9 75 247 7 mm dia e 1 375 34 9 mm R 45 06595 06611 307049 27 The Graco Standard Warranty Graco warrants all equipment 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 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 accor dance with Graco s writt
11. Instructions CS GRACO 7 in 178 mm DIAMETER Bulldog Air Motor soroaov 100 psi 0 7 MPa 7 bar Maximum Air Input Pressure Read warnings and instructions ENA Model 208356 Series J Standard Air Motor for most Bulldog Pumps Model 625794 Series A For Bulldog Sanitary Pumps Model 208357 Series J For Bulldog transfer pumps Model 902098 Series A _ B wo 03330 Model 208356 Shown PROVEN QUALITY LEADING TECHNOLOGY GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2001 Graco Inc is registered to I S EN ISO 9001 Table of Contents WarmingS sch a0 oir artes eningheetig eae ne eee ane AN 2 Technical Data 0 cee eee ee 26 Installation 0 2 cee ees 5 Dimensions 0000 cece cece eee ee 27 Operation uoaa iai eee de eae 6 Mounting Hole Layout 0 eee 27 Troubleshooting 00 cee eee eee eee 7 Warranty ora erai a pE aR ey ak fete ae 28 SONICE dan na aaa ee a Ta bye beet twat a Aea ah 8 Graco Phone Number ssassssaaaeanna neran 28 Parts Model 208356 902098 0 0 0 20 Model 208357 2 00 cece eee eee 22 Model 625794 0 0 cece eee 24 Symbols Warning Symbol Caution Symbol A WARNING A CAUTION This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions or destruction of
12. NG v block buna N WASHER backup SEAL felt wiper SPRING compression WASHER flat PAD rubber O RING buna N HOUSING air valve NUT 3 8 24 RETAINER detent spring Qty honma ow N DNN a a AH AS HSH AH HS A Ref No Part No 33 161588 34 161589 35 161590 36 168180 37 168182 38 168183 39 168184 40 168185 41 168187 44 169372 45 177664 46 169583 47 169584 48 100933 50 189234 51 208388 52 169586 53 104029 54 104582 67 189059 684 290331 694 189991 These parts are included in Repair Kit 206734 Description GUIDE spring SPRING compression HUB valve housing STUD connecting rod VALVE air director GASKET air manifold SEAL valve plate buna N GROMMET MANIFOLD air CYLINDER air motor HOUSING detent PLUNGER detent PLATE valve SCREW type f self tapping no 8 32 x 3 8 long BASE air motor SHIELD air motor 1 npt f exhaust connection AXLE detent LUG grounding WASHER tab BEARING LABEL warning English LABEL warning which may be purchased separately Qty MPNMH H NH NNYNMY HH ND zii g a ost st ot N A i Keep these spare parts on hand to reduce down time A Replacement Danger and Warning labels tags and cards are available at no cost The 290331 label is also available in the following languages German Part No 290396 French Part No 290397 Spanish Part No 290398 307049 25 Technical
13. ates 47 for wear or damage handling them carefully Clean the plates and mating surfaces of the manifolds 41 NOTE If you replace the valve plates also replace the seals 39 Model 208356 Shown 31 ay rime ey 307049 9 Service NOTE Refer to Fig 5 for steps 10 to 17 14 Lock the hex of the piston shaft 2 in a vise and unscrew the connecting rod stud 36 from the 10 Remove the washer 27 and rubber pad 28 from piston shaft the cylinder 44 deep well socket wrench Remove the gasket 16 A CAUTION v block packing 21 and backup washer 20 from Handle the trip rod assembly 22 carefully Nicks the bearing and scratches cause premature spring failure A CAUTION NOTE A damaged trip rod cannot be repaired use a new one Be careful not to tilt the cylinder when removing it from the piston to avoid damaging the smooth inner surface of the cylinder 15 Remove the trip rod 22 from the piston 2 12 Remove the screws 11 and lockwashers 6 and NOTE Check that the clearance between the inside carefully pull the cylinder 44 straight up off the shoulders of the trip rod spring guides is exactly 5 5 in piston 2 139 7 mm If the clearance is different replace the trip rod do not attempt to adjust it 13 Pull the piston 2 and trip rod 22 up out of the base 50 or 66 Remove the o ring 29 from the 16 Remove the v block packing 23 backup washer piston 24 and gasket
14. ble local state and national fire electrical and safety regulations 2 307049 A WARNING INJECTION HAZARD Spray from the gun 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 Fluid injected into the skin might look like just a cut but it is a serious injury Get immediate medi cal 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 glove or rag 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 diffuser operation weekly Refer to the gun manual Be sure the gun trigger safety operates before spraying Lock the gun trigger safety when you stop spraying Follow the Pressure Relief Procedure on page 6 whenever you are instructed to relieve pres sure stop spraying clean check or service the equipment and install or clean the spray tip Tighten all fluid connections before operating the equipment Check the hoses tubes and couplings daily Replace worn damaged or loose parts immediately Permanently coupled hoses cannot be repaired replace the entire hose Use only Graco approved hoses Do not remove any spring guard that is used to help
15. butor 307049 5 Operation Pressure Relief Procedure 6 A WARNING INJECTION HAZARD To reduce the risk of serious injury in cluding fluid injection splashing in the eyes or on the skin or moving parts always follow the Pressure Relief Procedure whenever you are instructed to relieve the pressure shut off the pump stop spraying dispensing check or service any of the system equipment or install or clean the spray tips nozzle Lock the gun valve trigger safety Turn off the air to the motor Close the bleed type master air valve required in your system 307049 4 Unlock the gun valve trigger safety Hold a metal part of the gun valve firmly to a grounded metal pail Trigger the gun valve to relieve pressure 5 Lock the gun valve trigger safety 6 Open the fluid drain valve Leave the fluid drain valve open until you are ready to spray dispense again If you suspect that the spray tip nozzle or hose is completely clogged or that pressure has not been fully relieved after following the steps above very slowly loosen the tip guard retaining nut or hose end coupling to relieve pressure gradually then loosen completely Now clear the tip nozzle or hose obstruction Preventive Maintenance Schedule The operating conditions of your particular system determine how often maintenance is required Estab lish a preventive maintenance schedule by recording when and what kind of maintenance is neede
16. d and then determine a regular schedule for checking your system Troubleshooting Stalled Motor To restart a stalled motor remove the lift ring 18 from the detent housing 45 and use a screwdriver to push the air valve housing 30 down See Fig 2 A WARNING Moving parts can pinch or amputate your fingers or other body parts To reduce the risk of serious injury including amputation keep fingers out of the detent housing 45 and exhaust openings Locating Air Leaks To locate an air leak shut off the air supply and dis connect the air hose Screw the inlet union 3 out of the air manifold 41 Remove the shield 51 then screw the union back into the manifold Connect the air hose and turn the air on Do not exceed 40 psi 0 28 MPa 2 8 bar incoming air pressure Use the checking methods listed below in the Check Chart to find where the air is leaking Refer to Fig 2 Detail of Air Director Valves Check Chart 06466 Stroke ig Checking Cause of Model 208356 Shown Position Method Leakage UP only Blown air 18 ree ak air valve manifold housing gaskets 38 down Blown air cylinder gt gasket 19 Y LE S Squirt oil Worn throat a4 BAN around wiper packings qk Bx 168 wi seal 25 23 or 61 Blown air manifold gasket 38 Damaged wiper seal 25 DOWN only air valve housing up AENEAS A g wif 16 G CS re GS 19 B Fig 2 4 TUT Or sere Ca
17. en 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 sub stitution 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
18. equipment if you do not follow the instructions A WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury ie NA INSTRUCTIONS This equipment is for professional use only Read all instruction manuals tags and labels before operating the equipment Use the equipment only for its intended purpose If you are uncertain about usage call your Graco distributor Do not alter or modify this equipment Use only genuine Graco parts and accessories Check equipment daily Repair or replace worn or damaged parts immediately 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 Use 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 Do not use hoses to pull equipment Route hoses away from traffic areas sharp edges moving parts and hot surfaces Do not expose Graco hoses to temperatures above 180 F 82 C or below 40 F 40 C Wear hearing protection when operating this equipment Do not lift pressurized equipment Do not lift the equipment by the air motor lift ring if the total weight of the equipment exceeds 550 Ib 250 kg Comply with all applica
19. eyes or on the skin inhaled or swallowed Know the specific hazards of the fluid you are using Store hazardous fluid in an approved container Dispose of hazardous fluid according to all local state and national guidelines Always wear protective eyewear gloves clothing and respirator as recommended by the fluid and solvent manufacturer 4 307049 Installation General Information 6 Fluid supply container follow your local code NOTE Reference numbers and letters in parentheses 7 Solvent pails used when flushing follow your local in the text refer to the callouts in the figures and the code Use only metal pails which are conductive parts drawing 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 NOTE Always use Genuine Graco Parts and Acces sories available from your Graco distributor Grounding 8 To maintain grounding continuity when flushing or relieving pressure hold a metal part of the spray A WARNING gun firmly to the side of a grounded metal pail then trigger the gun FIRE AND EXPLOSION HAZARD Before operating the pump ground the Ww system as explained below Also read the section FIRE AND EXPLOSION HAZARD on page 4 y CN Q 1 Pump use a ground wire and clamp as shown in Fig 1 Loosen the grounding lug locknut W and washer X Insert one end of a 12 ga 1 5 mm2 minimum grou
20. h the optional fluid outlet L of Studa S ABPIY Lochte aves obi equivalent te the base Install the ise aae 6 and screws both Screw the stud into the piston and torque to 11 dt to 9 15 ft lb 11 20 Ne 148 162 ft lb 200 220 Nem 11 and torque to m 8 Place the cylinder 44 upside down on the base 10 Install the backup washer 20 and v block pack 50 or 66 Grease the piston 2 o ring 29 and ing 21 in the bearing 1 so the lips of the pack inside of the cylinder Place the o ring around the ing face out of the bearing Install the gasket 16 piston the o ring is larger than the piston groove on the bearing Grease the trip rod 22 and thread Install the piston in the cylinder so the excess of the bearing onto the trip rod and into the cylinder the o ring fits into one of the air channels M of 44 Use a 1 in deep well socket wrench to the cylinder Use your fingers to push the o ring tighten the bearing to 14 18 ft lb 19 24 Nem out of the channel and seat it in the piston groove Very carefully lower the piston into the cylinder 11 Install the rubber pad 28 and washer 27 in the cylinder 44 A CAUTION When reassembling the sanitary air motor Model 625794 apply sealant to the cylinder flange to seal out exhaust air that could contaminate the material Use silicone sealant GE NO SCS 1300 or equiva lent 14 307049 Service Model 208356 Shown ith li Torque to 9 15 ft lb 11 20 Ne
21. ir 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 procedures concern es 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 612 623 6921 612 378 3505 Fax 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 International Offices Belgium Korea Hong Kong Japan GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 www graco com PRINTED IN U S A 307049 August 1971 Revised 1 02 28 307049
22. m Detail of Piston AN Grease with light waterproof grease A q 2 AN A Apply Loctite 242 or equivalent to threads A Lips of packing must face out of the bearing N Torque to 148 162 ft lb 200 220 Nem N Torque to 14 18 ft lb 19 24 Nem A Grease inside wall of cylinder Align air channel M and notch K in it gasket 19 with the optional fluid outlet L in the base 50 or 66 50 or 66 AA N Ne 07274 07270 307049 15 12 13 Service See Fig 8 Make sure the seals 39 are in place NOTE The air valve alignment tool N ensures proper on the valve plates 47 Attach the plates to the clearance and alignment for the manifolds manifolds with the screws 14 Place the air valve alignment tool N order Part No 168513 on the trip rod 22 Place the gaskets 38 on the cylinder 44 so the wide end of the slot aligns with the air channel M Install the manifolds 41 The air inlet manifold the one with the open port P must align with the optional fluid outlet in the base L Fig 7 Install the screws 8 and washers 9 Remove the tool Model 208356 Shown 38 07272 Fig 8 16 307049 Service NOTE Refer to Fig 9 for steps 14 to 16 16 Install an o ring 17 on each director valve 37 14 Thread the hub 35 onto the trip rod 22 Lift the Grease the dractor valves and Springs 26 a
23. motor HOUSING detent PLUNGER detent PLATE valve BASE air motor model 208356 only includes item 67 BASE air motor model 902098 only SHIELD air motor AXLE detent LUG grounding WASHER tab BEARING LABEL warning English LABEL warning These parts are included in Repair Kit 206734 which may be purchased separately time Qty MPNMH H NH NNYNMY HH ND lt se os os ot OQ HS iA A Replacement Danger and Warning labels tags and cards are available at no cost The 290331 label is also available in the following languages German Part No 290396 French Part No 290397 Spanish Part No 290398 307049 21 Parts Model 208357 Series J Includes items 1 69 AN Lips of V Packings Must Face Down AN Lips of V Packing Must Face Up 03335 22 307049 Model 208357 Series J Include items 1 69 Ref Ref No PartNo Description Qty No PartNo Description Qty 1 204649 BEARING 2 206710 PISTON ASSY 4 169585 ROLLER axle 6 100018 LOCKWASHER spring 1 2 41 168187 MANIFOLD air 7 100052 LOCKWASHER spring 7 16 44 169372 CYLINDER air motor 8 100101 SCREW hex hd cap 45 177664 HOUSING detent 38 168183 GASKET air manifold 39 168184 SEAL valve plate buna N 168185 GROMMET RON aN oO 3 8 16 x 1 long 4 46 169583 PLUNGER detent 9 100133 LOCKWASHER spring 3 8 5 47 169584 PLATE valve 10 113161 SCREW hex hd flange 51 169588 SHIELD ai
24. nd ones f lace them in each side of the air valve housing rod and grasp it with the padded locking pliers p Screw ihe aH down as fae as PE hand 0 AOIR NA PANSIN TA ousiig and ca erully rotate the housing 90 until it slides down between 15 Install the air valve housing 30 lockwasher 9 the manifolds 41 Be very careful not to dam and trip rod nut 31 so the nut is flush with the top age the air director valves 37 of the trip rod 22 Tighten the nut 3 4 turn more so there is 0 031 in 0 8 mm clearance between the top of the rod and the top of the nut Hold the flats of the trip rod nut 31 with a wrench With another wrench tighten the hub 35 to 21 25 ft lb 28 35 Nem Turn the valve housing 30 so it rests on the manifolds then release the pliers Model 208356 Shown Make top of nut flush with top of trip rod then tighten 3 4 turn more Top of nut 31 must be 0 031 0 8 mm from end of rod 22 AN Torque to 21 25 ft lb 28 35 Nem A Grease 07273 06466 Fig 9 307049 17 Service NOTE Refer to Fig 10 for steps 17 to 21 Model 208356 Shown 3 17 Install the rubber pad 28 and washer 27 in the bottom of the detent housing 45 Grease the 10 plunger 46 assemble the axles 52 and rollers oe 4 and grease them and install these parts in the ie detent housing Cc 18 Position the detent housing 45 on the manifolds a eee A 41 and install the washers
25. nd wire Y into the slot in lug Z and tighten the locknut securely Connect the other 0864 end of the wire to a true earth ground Order Part Fig 1 No 237569 Grounding Clamp and Wire 2 Air and fluid hoses use only electrically conductive Air Motor Icing hoses with a maximum of 500 feet 150 m com bined hose length to ensure grounding continuity Check the electrical resistance of your air and fluid hoses at least once a week If the total resistance to ground exceeds 29 megohms replace the hose immediately Moisture in the compressed air can collect in the air motor and freeze causing the motor to stall This is called icing If icing occurs shut off the air supply and allow the ice to thaw To minimize icing reduce the moisture in your com pressed air supply by using an air dryer or a filter NOTE Use a meter that is capable of measuring which traps water resistance at this level 3 Air compressor follow manufacturer s recommen The main air line should slope slightly downward so dations water will collect at the end of the line where it can be drained Additionally plumb a drop line from the top of 4 Spray gun or dispensing valve ground through each main air line Install an automatic drain or a drain connection to a properly grounded fluid hose and valve at the bottom of each drop pump For additional help in designing your system contact 5 Object being sprayed follow your local code your Graco distri
26. r motor 1 4 20 x 1 2 long 8 52 169586 AXLE detent 11 100424 SCREW hex hd cap 53 104029 LUG grounding 1 2 13 x 1 1 4 long 8 54 104582 WASHER tab 13 101713 SCREW hex hd cap 55 107141 VALVE shutoff 3 4 npt 7 16 14 x 3 1 2 long 4 56 101407 NIPPLE pipe 3 4 npt x 3 long 14 101716 SCREW flat hd machine 57 157636 GLAND female e m PY NM Y DO KN P no 10 24 x 1 2 long 15 102726 PLUG pipe socket hd 3 4 npt 16 150647 GASKET 17 156698 O RING buna N 18 180952 RING lift 19 161556 GASKET 20 161559 WASHER backup 21 161560 PACKING v block polyurethane 22h 214852 ROD trip 23 161562 PACKING v block buna N 24 161563 WASHER backup 26 161575 SPRING compression 27 161576 WASHER flat 28 161577 PAD rubber 29 161578 O RING buna N 30 161585 HOUSING air valve 31 161586 NUT 3 8 24 32 161587 RETAINER detent spring 33 161588 GUIDE spring 34 161589 SPRING compression 35 161590 HUB valve housing 36 168180 STUD connecting rod 37 168182 VALVE air director 58 157638 GLAND male 59 156172 UNION straight adapter 3 4 npt f x 3 4 nps f swivel 60 158388 SPRING compression 61 159314 V PACKING neoprene 63 162847 RETAINER packing 64 162848 BEARING throat 65 162849 WASHER flat 66 162935 BASE air motor 68A 290331 LABEL warning English 69A 189991 LABEL warning lt St ot st ss st These parts are included in Repair Kit 206734 which may be purchased separately
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