Graco Inc. 221076 User's Manual
Contents
1. Improper flushing or maintenance may prevent the system from working the next time you need it and may result in costly damage to the system ALWAYS flush your system thoroughly and immedi ately after each use ALWAYS fully extend the telescoping extension when flushing to clean it thoroughly ALWAYS drain all water out of the roller valve and extension and leave the system filled with mineral spirits to prevent corrosion Flushing Latex Paint Only 1 2 3 Fig 3 6 Turn the ON OFF switch to OFF Fully extend the telescoping extension Trigger the roller valve and roll out the excess paint onto a wall or newspaper Remove the roller cover and diffuser and soak in a pail of warm soapy water Place the suction tube in the pail of warm soapy wa ter Hold the roller frame over the paint pail turn on the system and trigger the roller valve to drain and save the paint in the hoses Release the trigger and shut off the pump as soon as all paint is drained to avoid contaminating the paint with the flushing water Now hold the roller frame over the flushing pail Turn on the pump and trigger the roller valve Circulate the solution for three to five minutes five to ten minutes if it is cold Pump the extension in and out a few times to clean it and then leave it extended Open the priming valve for a few seconds to clean the prim ing tube Close the valve 307 760 6 Raise the suction tube above th2. necting rod and housing Gently clean the bottom of the pump housing 9 avoiding damage to the dia phragm grooves 5 Check the rod motor bearing and eccentric for paint If there is any paint or damage clean or re place the connecting rod assembly as explained on page 13 CAUTION To ensure the diaphragm will work properly do not turn the diaphragm more than 1 2 turn when torqu ing it 6 Screw the new diaphragm 17 into the connecting rod just until it bottoms out Then turn it 1 4 to 1 2 turn 2 7 3 6 N m 6 8 in lb 7 Apply thread lubricant to the screws 15 and install them with the lockwashers in the pump housing Torque the screws a little at a time oppositely and evenly to 9 8 N m 85 in Ib 8 Spin the motor shaft D to be sure it turns freely 9 Reinstall the front cover 23 Priming Valve amp Tube See Fig 15 NOTE Each new priming valve kit includes a priming tube and fittings 1 Unscrew the nut E of the priming valve 10a and then unscrew the stem of the handle Unscrew the priming valve 10a Wrap the threads of the priming valve with PTFE tape and then screw it snugly into the pump housing The valve handle should be parallel with the angled edge of the housing to avoid interference with the in let or outlet valves 4 Slide the nut 10d and ferrule 10c onto the tube 10e and then install the tube support lOb in the end of the tube Screw the nut onto the prim
3. Read and follow the grounding instructions on page 4 of this manual EXTENSION MISUSE HAZARD THIS IS NOT AN AIRLESS GUN EXTENSION for ex ample pole gun Do not attempt to modify the extension or roller frame or to use parts which are not designed for use with this system Improper use of the extension roller frame hose or roller valve can result in component rupture or explosion and cause serious bodily injury AVOID POWER LINES Avoid contacting any power lines with the extension Contact with power lines could cause extremely serious bodily injury including burns or electrocution 2 307 760 EQUIPMENT MISUSE HAZ ARD This system is designed for be used at 17 5 bar 250 psi Maximum Working Pressure Use only components and accessories which are designed for use with the PT2000 System Any misuse of this equipment such as modifying parts using incompatible paint or solvent or using worn or damaged parts can cause the equipment to rupture and result in serious bodily injury fire or explosion and prop erty damage Never alter or modify any part of this equipment doing so could cause it to overpressurize or malfunction Check all parts of the system regularly and repair or re place any worn or damaged parts immediately HAZARD OF USING FLUIDS CONTAINING HALOGENATED HYDROCARBONS Never use 1 1 1 trichloroethane methylene chloride other halogenated hydrocarbon solvents or fluids con taining such solve
4. 1 4 TERMINAL WIRE specify length when ordering WIRE specify length when ordering Recommended tool box spare parts Extra warning labels available at no charge WIRING SCHEMATIC 307 760 QTY ao 2 oa ppooapas 4 0484 MP 15 REF NO PARTNO DESCRIPTION 2 220 970 OUTLET VALVE KIT Includes items 2a 2f 2a 222 349 FITTING outlet 2b 180 454 GASKET 2c 107 521 SPRING 2d 101 956 BALL 2e 218 968 HOUSING seat valve 2f 180 455 SEAL washer 3 220 931 INLET VALVE KIT Includes replaceable item 4 4 183 419 GASKET 9 181 146 HOUSING pump 12 218 974 PRESSURE SWITCH KIT Includes item 12a 12a 108 195 O RING 14 181 209 RETAINER Ref No 55 Roller Frame Includes items 55a 55e PARTS LIST REF QTY NO 55 55a 55b 55c 55d 55e 60 Sa ee ee Cree Cees Cees Ce 1 62 1 63 1 64 PART NO DESCRIPTION QTY 218 935 FRAME roller Includes items 55a 55e 218 934 DIFFUSER roller 108 808 SEAL u cup retainer 183 420 NUT retainer 218 582 FRAME roller 101 983 SETSCREW 218 954 ROLLER VALVE Replaceable parts are shown in the drawing below for Kit 218 960 107 590 COVER roller 1 2 nap 218 775 EXTENSION adjustable 0 45 0 9 m 18 36 long 108 356 HOSE fluid nitrile rubber 6 m 1 4 ID cpld 3 8 npsm f 7 6 m 25 long Recommended tool box spare parts PARTS DRAWING 16 307 760 ROLLER VALVE REPAIR KIT 218 960
5. Kit includes items A through F Individual parts are not sold separately See page 9 or the manual supplied with the kit for repair instructions a Cees Cree eee Gee Cree A PARTS DRAWING DETAIL A Pump Housing Parts s i 4 APPLY Ref 10 THREAD SEALANT A x S 5 TORQUE TO n oF 13 5 16 N m Ac 120 140 in Ib eae 2d 2c 2a x TORQUE TO 32 34 N m 280 300 in Ib 14 TORQUE TO 6 2 7 4 N m 55 65 in Ib DISPENSING ACCESSORIES Not included with Basic System 221 076 SEE PARTS DETAIL ON PAGE 16 SEE PARTS DETAIL ON PAGE 16 307 760 17 ACCESSORIES Must be purchased separately CAUTION To avoid premature wear of the pressure switch never use more than 7 6 m 25 ft of 6 mm 1 4 in ID outlet hose When longer outlet hose is needed use 9 mm 3 8 in ID hose at a maximum of 30 m 100 ft long Never use 6 mm 1 4 in ID and 9 mm 3 8 in ID hose together Do not use lacquer or lacquer thinner in the suction and outlet hoses supplied with this system These fluids quickly destroy the hose material Use the op tional chemical resistant hoses CHEMICAL RESISTANT SUCTION amp OUTLET HOSES For use with lacquer and lacquer thinners 205 142 Outlet Hose Nylon 9 mm 3 8 ID cpld 3 8 npsm fbe 7 6 m 25 21 bar 300psi MAXIMUM WORKING PRESSURE 219 095 Suction Hose Nylon LARGER DIAMETER OUTLET HOSE Use this hose when using more than 7 6 m 25 ft of outlet hose Not intended for
6. fitting The last coil on one end of the spring 2c is turned in Place this end on the ball stop pin Screw the fitting into the pump housing and torque to 32 34 N m 280 300 in lb Inlet Valve See Fig 13 1 Unscrew the suction hose 44 Unscrew the inlet valve 3 Remove the gasket 4 and replace it if it is worn 2 Screw the new valve into the pump housing torquing to 27 29 N m 240 260 in lb NOTE To torque the inlet valve have someone firmly hold the pump housing 9 10 ra TO 13 5 16 N m 120 140 in Ib 14 TORQUE TO 6 2 7 4 N m 55 65 in Ib TORQUE TO 32 34 N m 280 300 in lb Fig 12 44 3 TORQUE TO 27 29 N m 240 260 in Ib Fig 13 307 760 11 REPAIR Diaphragm See Fig 14 CAUTION To avoid leaks and costly pump damage replace the diaphragm whenever the pump housing 9 is re moved or after each 100 hours of use whichever comes first During use small grooves are formed in the diaphragm which cannot be realigned properly 1 Remove the screws 15 Tip the pump housing 9 back being careful not to damage the wires Re move the front cover plate 23 2 Check the diaphragm guide 11 and replace it if necessary Clean the pump housing thoroughly and then lay the flat side of the guide into the housing and use your fingers to press it evenly into place Unscrew the diaphragm 17 Use a soft bristle brush to clean the top of the con
7. 32 x 5 8 LOCKWASHER spring 0 168 HOUSING conn rod Always order two of Ref No 27 when replacing housing COVER front SCREW mach filh No 8 32 x 1 75 CAPSCREW hex head 1 4 20 x 1 75 LOCKWASHER internal shakeproof 1 4 PIN dowel SCREW mach hex washer head self tapping 1 4 14 x 1 LABEL designation front MOTOR electric Includes two item 30a and one of item 53 TERMINAL BASE pump HANDLE SCREW thd forming pnh No 8 x 7 8 SWITCH toggle LABEL designation right hand TOGGLE boot CORD power supply BUSHING strain relief RECTIFIER bridge WIRE jumper specify length when ordering TERMINAL ground COVER base BUMPER TUBE suction QTY e 8 AR AA P Oo N Ao O 8 REF NO PART NO 45 181 159 46 181 160 47 108 231 48 181 163 49 181 164 52 178 342 53 181 613 54 181 214 65 108 199 67 104 188 68 108 223 69 181 218 70 100 072 71 108 421 72 104 038 78 102 799 82 103 181 83 103 854 85 108 716 86 065 239 87 065 236 DESCRIPTION NUT coupling NIPPLE hose CLAMP hose HOUSING filter FILTER CLAMP hose LABEL Warning LABEL designation left hand HOLDER fuse FUSE electrical 3AG 1 amp SCREW thd forming pnh No 6 x 1 2 GROMMET rubber NUT hex mscr No 6 32 UNC 2B STRIP terminal SCREW mach pnh No 6 32 2a x 0 75 TERMINAL for ground wire LOCKWASHER No 6 SCREW mach bdgh No 6 32 UNC 2a x
8. INSTRUCTIONS PARTS LIST G 307 760 This manual contains IMPORTANT Rev G INSTRUCTIONS and WARNINGS GRACO READ AND RETAIN FOR REFERENCE Supersedes E 50 Hz 220 240 Volts 0 5 Amp PT2000 Pressure Roller System 17 5 bar 250 psi MAXIMUM WORKING PRESSURE Model 220 240 Series E Complete System with hose roller valve extension and roller Model 221 076 Series E Basic System without hose roller valve extension or roller PATENT NO 4 652 024 GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1986 GRACO INC TABLE OF CONTENTS Terms boa a whine ght poe ewe eee aS 2 Warnings ete scence hana eter eit Sakai des EE ores 2 PT2000 Pressure Roller System Description 3 SOUP cea discard Bae hata a Sete a magne St ASAE eas 4 SAMUS Siarad aea Mam cea dicta ct tn hee Nae are Ae 5 Operation arepa pianta Seb Aaaa aA Ea a a koreans 5 Maintenance FIUSHING eaa a ea panene hehe ed EN 6 Installing amp Removing a Roller Cover 7 Cleaning the Roller Diffuser 0000002 7 Troubleshooting Chart 0 0 eee eee eee 8 Repair Roller Valve 2 2 00 cece eee eee eee 9 FUSE enprene rea a ee er he ea R e E EN 10 ON OFF Switch 0 00 onei ar e Eta 10 Rectifier Ceep aen de p A AA doe aa 10 Power Supply Cord cece cece eee 10 Pressure Switch 00 0 c cece eee eee 11 Outlet Valve 228 tid 4 teh ied tata Lick belihs 11 Inlet Vale sinire eat oe eee Sete ay 11 D
9. TION Thoroughly flush the system after each use to re WARNING Pressure Relief Procedure To reduce the risk of serious bodily injury including injury from moving parts or electric shock always follow this procedure whenever you shut off the sys duce down time and costly repair bills tem when checking or servicing any part of the sys NOTE If you are not able to determine the cause of the tem and whenever you stop painting problem or the problem and solution is not dis cussed in this chart return the system to an au 1 Turn the ON OFF switch to OFF thorized service agencyfor repair 2 Unplug the power supply cord 3 Trigger the roller valve to relieve pressure If you suspect that pressure is not fully relieved after following the steps above open the priming valve 2 turns counterclockwise PROBLEM CAUSE SOLUTION Pump will not prime or primes slowly Clogged suction tube strainer Paint too thick Thin try pouring paint into suction tube use 3 8 in ID hose if necessary Outlet valve spring worn Pour paint into suction tube and try to prime system If it doesn t prime in one minute re place the outlet valve spring See page 11 Depress inlet valve gently and pour in about 1 teaspoon mineral spirits Try to prime pump Replace inlet valve if neces sary See page 10 Inlet valve stuck or damaged DEPRESS LIGHTLY POUR IN 1 TEASPOON MINERAL SPIRITS Hi Fuse burned o
10. co distributor for verification of the claim If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation DISCLAIMERS AND LIMITATIONS The terms of this warranty constitute purchaser s sole and exclusive remedy and are in lieu of any other warranties express or implied including warranty of merchantability or warranty of fitness for a particular purpose and of any non contractual liabilities including product liabilities based on negligence or strict liability Every form of liability for direct special or consequential damages or loss is expressly excluded and denied In no case shall Graco s liability exceed the amount of the purchase price Any action for breach of warranty must be brought within two 2 years of the date of sale EQUIPMENT NOT COVERED BY GRACO WARRANTY Graco makes no warranty and disclaims all implied warranties of merchantability and fitness for a particular purpose with respect to accessories equipment materials or components sold but not manufactured by Graco These items sold but not manufactured by Graco such as electric motor switches hose etc are subject to the warranty if any of
11. e and install a new o ring 12a in the pump housing 9 See Fig 12 5 Slide the retainer 14 over the pressure switch and screw the retainer into the pump housing Torque the retainer to 6 2 7 4 N m 55 65 in Ib See Fig 12 6 Guide the pressure switch leads through the base Connect a lead to the power out side of the ON OFF switch 34 and a lead to an unmarked terminal on the rectifier 39 See Fig 11 7 Reinstall the front cover 23 CAUTION To avoid damaging the pressure switch do not drop it and do not press on the center of the switch Outlet Valve See Fig 12 1 Remove the outlet hose 64 Unscrew the outlet fit ting 2a and remove the gasket 2b 2 Tip the pump forward to remove the ball 2d 3 Use a 1 4 in square socket wrench extension to screw out the seat 2e 4 Use a pointed tool such as a dentist s pick to re move the seal 2f 5 Thoroughly clean all parts and dry 6 Tip the pump back Install a new seal 2f making sure it lays flat 7 Install the seat 2e and torque it to 13 5 16 N m 120 140 in b 8 Drop in the ball making very sure it stays there CAUTION Do not drop the ball into the pressure switch cavity 12 If it does and the outlet fitting 2a is then in stalled the switch will be permanently damaged 9 Check the ball stop pin in the outlet fitting 2a for wear and replace the fitting if necessary Place a new gasket 2b around the
12. e water and run the pump for a few seconds to drain the flushing solution Shut off the pump 7 Wash off all external parts of the hoses extension roller frame roller valve and pump 8 Using clean clear water flush again changing water as often as necessary until the system is thoroughly cleaned 9 Finally flush the system with clean mineral spirits for just a few seconds Open the priming valve and turn off the pump Some mineral spirits must be left in the system to prevent corrosion Retract the extension before storing it CAUTION Never leave water or water based paint latex in the system To prevent corrosion in the pump exten sion roller valve and roller frame your final flush must be mineral spirits 10 Clean the roller cover thoroughly by rinsing it inside and out Clean the diffuser as explained on page 3 11 Oil the needle in the roller valve and trigger the valve a few times to distribute the oil See Detail A Fig 3 Flushing Oil based Paint Only NOTE Follow the instructions above except use miner al spirits Do not heat the mineral spirits OIL REGULARLY EXTENSION MUST BE FULLY EXTENDED WHEN FLUSHING 1 MAINTENANCE Installing and Removing a Roller Cover See Fig 4 To install a cover hold the diffuser and unscrew the retainer nut Slide the cover over the diffuser assem bly and reinstall the nut Do not overtighten the nut To remove a cover hold the cov
13. er and unscrew the retainer nut Slide the cover and diffuser assembly off the roller frame Press on the end of the diffuser assembly to separate it from the cover Cleaning the Roller Diffuser See Fig 5 1 For water base paint latex vigorously shake the diffuser in a pail of hot soapy water to remove undried paint For oil base paint use mineral spirits Use a soft brass bristle brush to remove dried paint 3 Disassemble if further cleaning is needed a 2 To clear an obstruction in the frame or for more thor ough cleaning remove the setscrew Be sure to rein stall it after cleaning OE Nae ASS RE OPIS ES U CUP SEAL Grease lightly with petroleum jelly Lips of seal must face diffuser Fig 4 INSIDE END CAP DIFFUSER Fig 5 Remove the two screws Pull off the outside end cap Disassemble all parts and clean thoroughly in water or mineral spirits Install the inside end cap on the frame Lightly grease the u cup seal with petroleum jelly Slide the diffusers onto the roller frame Twist and press the last diffuser to snap the pieces togeth er Install the outside end cap and the two screws Holding the inside end cap press on the screws and rotate the diffusers to seat the screws Tight en the screws evenly into the inside end cap Be sure there is no binding and that the diffusers move freely VSS RS er SEE ee ee ee A a a SCREW OUTSIDE END CAP 307 760 7 TROUBLESHOOTING GUIDE CAU
14. eters feet 1 30 1 100 30 61 100 200 61 92 200 300 0 75 mm2 4 Loosen the locknut on the telescoping extension and adjust the extension to the desired length Firmly tighten the locknut OF Gr 9 STARTUP Place the suction tube in the pail of paint Plug in the sprayer Open the priming valve 2 turns counterclockwise Turn the ON OFF switch ON You can see the paint being drawn into the suction tube if the tube is clean As soon as you see paint flow through the priming tube close the priming valve This usually takes less than 30 seconds CAUTION Failure to completely close the priming valve after the system is primed will cause the valve to erode greatly shortening the valve life NOTE If your system is hard to prime first try to force feed the suction tube Hold the suction tube in a vertical position and pour paint into it Turn on the system lf the system does not prime within one minute shut it off Heavy viscosity paint may need to be thinned Be sure to follow the paint manufacturer s recommendations on thinning 6 When the outlet hose and extension tube are fully primed the motor will run when there is paint de mand but appears to shut itself off when there is no paint demand NOTE An occasional start and stop of the motor when the roller valve is not triggered is normal OPERATION WARNING To reduce the risk of electric shock do not expose the system
15. ews Spin the motor shaft again See the CAU TION in Step 8 to the left Connect the red motor lead to the positive termi nal and the black motor lead to the negative termi nal of the rectifier 39 Refer to Fig 11 Reinstall the front cover plate 307 760 13 PARTS DRAWING Model 221 076 Series E Basic System Includes items 2 54 and 65 87 Model 220 240 Series E Complete System Includes items 2 87 NOTE See Wiring Schematic on page 15 15 LUBRICATE THREADS TORQUE TO 9 6 Nm 85 in Ib 14 307 760 PARTS LIST PRESSURE ROLLER SYSTEM Model 220 240 Series E Complete System Includes items 2 87 Model 221 076 Series E Basic System Includes items 2 54 and 65 87 NOTE Part numbers and drawings for items 2 3 4 9 12 14 and 55 64 are given on pages 16 and 17 REF NO 10 11 15 16 17 18 20 21 22 23 24 25 26 27 28 PART NO 218 973 181 152 108 225 104 008 275 619 218 981 108 237 100 079 181 147 181 839 108 236 102 313 100 028 108 213 108 230 181 215 181 575 596 421 181 573 181 182 108 224 105 679 181 213 105 659 181 626 106 013 108 420 065 120 183 301 181 799 108 220 181 231 DESCRIPTION PRIMING VALVE KIT GUIDE diaphragm CAPSCREW socket head 5 16 18x 1 1 8 long LOCKWASHER spring 5 16 DIAPHRAGM CONNECTING ROD amp BEARING CAPSCREW socket head No 8
16. f the packing See Fig 8 9 Guide the tapered end of the needle into the assem bly tool M and press the lips of the packing over the end of the tool See Fig 8 10 Grease the free end of the needle Guide the tool M into the fluid housing until the needle protrudes through the top of the housing Lightly tap the tool end until you hear the packing bottom in the housing Remove the tool with pliers See Fig 8 11 Grease the seat G and place it on the fluid housing so the seat which is formed on the inside diameter faces out See Fig 9 12 Install the spring E in the spring cavity of the valve handle then install the ball F so it is centered on the spring See Fig 6 13 Place the o ring J around the fluid housing Pushing lightly with your fingers start the threads of the hous ing into the valve handle Torque the housing to 1 7 2 2 N m 15 20 in Ib See Fig 6 14 Push on the needle until you feel some resistance 15 Grease the cap C and place it on the end of the needle See Fig 6 16 Slide the trigger D into place Install the pin A See Fig 6 CAUTION Never attempt to remove the adapter fittings from either end of the valve body N Doing so could crack the body TORQUE TO 1 7 2 2N m 15 20 in Ib Fig 6 L gee H i D ae Fig 7 LIPS FACE OUT REREPEN OF HOUSING D M D K H Fig 8 SEAT MUST wee FACE BALL Cc D Fig 9 307 760 9 REPAIR WARNING These repair p
17. he date of sale by an authorized Graco distributor to the original purchaser for use As purchaser s sole remedy for breach of this warranty Graco will for a period of twelve months from the date of sale repair or replace any part of the equipment proven defective with the exception of defects in parts on the drive train gear box which will be repaired or replaced for forty eight months from the date of sale and the electric motor excluding brush replacement which is routine maintenance or pressure control assembly which will be repaired or replaced for twenty four months from the date of sale 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 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 with Graco equipment of 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 Gra
18. iaphragm 3 3 sie tence ee fk ie aleve Gaede eed 12 SUCTION TUDE ra sateinen a aa tice sea Maat aN 12 Priming Valve amp Tube eee eee eee 12 Motor Connecting Rod amp Bearing 45 13 Parts Drawing amp Lists 2 0 0 0 eee eee 14 Accessories siren cote EE oye areca Gane cee ae ee 18 Technical Data 0 cee eee eee Back Cover Waltanity 22isesateuleag eeealecidieg vag Aa Back Cover TERMS Be sure you read and understand each of these terms be fore reading the rest of the manual WARNING Alerts user to avoid or correct conditions which could cause serious bodily injury CAUTION Alerts user to avoid or correct conditions which could damage or destroy the equipment NOTE Gives additional explanation or helpful hints WARNING Be sure all operators of this equipment read understand and follow the warnings and instructions in this manual GENERAL SAFETY Use extreme care not to splash paint contaminated flushing water or solvent into your eyes Wear protective eyewear Be sure the area in which you are working is extremely well ventilated to avoid a buildup of harmful paint fumes To reduce the risk of electric shock do not expose the system to rain Always store the system indoors Do not operate the pump with the pump base cover removed ELECTRICAL GROUNDING Electrical grounding is essential to reduce the risk of an electric shock or other serious bodily injury from static sparking
19. igger the roller valve Inlet Valve As the diaphragm draws paint from the suction tube the paint passes through the inlet valve which opens to allow paint into the pump 12 MM 1 2 IN NAP t PRIMING VALVE PAINT STRAINER 460 TO 920 MM 18 TO 36 IN TELESCOPING EXTENSION LOCKNUT ROLLER FRAME ROLLER COVER Outlet Hose The hose has swivel type couplings for easy assembly A larger diameter outlet hose and chemical resistant out let and suction hoses are available See ACCESSORIES on page 17 Roller Valve The roller valve controls paint flow to the roller by trigger ing it on and off Pressure Roller The pressure roller has a telescoping extension and a roller cover for use on smooth surfaces Longer exten sions and different types of roller covers are available See the ACCESSORIES on page 17 307 760 3 SUCTION TUBE PRIMING TUBE INLET VALVE POWER SUPPLY CORD Add plug according to local code SPRING GUARD HAND TIGHTEN NUT TIGHTEN SNUGLY WITH LIGHT WRENCH PRIMING VALVE 7 6 M 25 FT HOSE MUST BE AT THIS END USE TWO 460 TO 920 MM 18 TO 36 IN WRENCHES TO TIGHTEN TELESCOPING EXTENSION LOCKNUT ROLLER VALVE HAND TIGHTEN ONLY TRIGGER 12 MM 1 2 IN NAP ROLLER COVER USE TWO WRENCHES on TO TIGHTEN E ROLLER FRAME 5 Apply PTFE tape to male threads _HAND TIGHTEN ONLY Fig 2 to avoid cracking roller cover CAUTION 1 Assemble the s
20. ing valve which will seat the ferrule 5 Screw the stem of the handle E onto the priming valve until it bottoms then back it out two turns Screw the nut hand tight onto the priming valve then tighten the stem into the valve 12 307 760 LUBRICATE THREADS TORQUE TO 85 in Ib 9 6 N m 15 16 Fig 14 WRAP WITH PTFE TAPE Suction Tube See Fig 15 1 Unscrew the hose nut 45 Remove the hose camp 47 Slit the suction hose to free the nipple 46 2 With the nipple 46 inserted through the nut 45 dampen the new hose 44 with warm water and press the hose over the nipple Screw the nut onto the inlet valve housing and then press the hose fur ther onto the nipple Leave about a 1 8 in 3 mm gap between the nut and hose end 3 Install the hose camp 47 and tighten snugly 4 Remove the filter housing 48 and strainer 49 and install them on the new hose Dampen the hose with warm water to ease assembly REPAIR Connecting Rod and Bearing See Fig 16 1 Remove the front cover plate 23 Remove the screws 15 and tip the pump housing 9 out of the way Unscrew the diaphragm 17 and discard CAUTION Replace the diaphragm 17 whenever you remove the pump housing 9 During use small grooves are formed in the diaphragm which cannot be realigned properly Reusing a diaphragm may cause leaking which will result in costly damage to the pump 2 Remove the motor screws 20 Lift the mot
21. ng and connecting rod If you feel binding or resistance disassemble the parts checking the spin often until you deter mine the cause of the binding 9 Position the pump housing 9 on the sprayer Lubri cate the screws 15 and install them and the lock washers 16 loosely Torque the screws a few inch pounds N m at a time oppositely and evenly to 85 in lb 9 8 N m 10 Reinstall the front cover plate 23 INTO 22 30 21 20 18a 18b Fig 16 Motor See Fig 16 1 2 Remove the front cover plate 23 Remove the bumpers 43 and the bottom cover plate 42 Disconnect the motor leads from the posi tive and negative rectifier terminals See Fig 11 page 12 Remove the motor screws Lift the motor 31 slight ly Holding the connecting rod pull the motor away from the housing 22 Inspect the bearing 18b in the connecting rod 18 If it is worn or any rollers are broken replace the bearing and rod assembly 18 as instructed to the left Use your fingers to pack high quality bearing grease thoroughly in between the bearing rollers Feed the motor leads through the rubber grommet 69 Align the motor with the pins in the connecting rod housing 22 guiding the motor eccentric through the connecting rod bearing 18b Spin the motor shaft to be sure it moves freely Loosely install the lockwashers 21 and screws 20 Spin the motor shaft again Alternately tighten the scr
22. nts in this equipment Such use could result in a serious chemical reaction with the possibility of explosion which could cause death serious bodily in jury and or substantial property damage Consult your fluid suppliers to ensure that the fluids being used are compatible with aluminum and zinc parts PT2000 PRESSURE ROLLER SYSTEM DESCRIPTION SUCTION TUBE PRIMING TUBE INLET VALVE MOTOR ON OFF SWITCH S POWER SUPPLY CORD ___ Add plug according to local code ao ee Cams SPRING GUARD oO MUST BE AT THIS END ais ROLLER VALVE YW Fig 1 SS Motor The motor drives the connecting rod which moves the diaphragm Pressure Switch The pressure switch at the pump outlet turns the motor on and off to control paint pressure Diaphragm The diaphragm is the heart of the pump Driven by the connecting rod and motor the movement of the dia phragm draws paint from the suction tube and through to the outlet valve Priming Valve The priming valve assists in priming the pump during startup Turning the priming valve counterclockwise causes the paint to drain directly back into the pail through the priming tube Turning the knob clockwise causes the paint to flow through the fluid outlet valve and to the hose roller valve and extension Outlet Valve The outlet valve has a ball check which prevents paint from flowing backwards into the pump This helps keep an even supply of paint to the roller each time you tr
23. or 30 slightly Holding the connecting rod pull the motor away from the housing 22 3 Inspect the bearing 18b in the connecting rod 18 If it is worn or any rollers are broken replace the bearing and rod assembly 18 Inspect the motor ec centric F and replace the motor if the eccentric is worn 4 Use your fingers to pack high quality bearing grease thoroughly in between the bearing rollers CAUTION Thorough greasing of the bearing is essential to ex tend the life of the bearing and the motor eccentric 5 Usea soft brass or nylon bristle brush to clean the top of the connecting rod and housing Gently clean the bottom of the pump housing 9 avoiding damage to the diaphragm grooves 6 Install the connecting rod 18 in the connecting rod housing 22 Screw a new diaphragm 17 into the rod just until it bottoms Turn the diaphragm only1 4 to 1 2 turn more 2 7 3 6 N m 6 8 in lb 7 Align the motor with the pins in the connecting rod housing 22 guiding the motor eccentric through the connecting rod bearing 18b Spin the motor shaft to be sure it moves freely 8 Loosely install the lockwashers 21 and screws 20 Spin the motor shaft again Now alternately tighten the screws Spin the motor shaft again CAUTION Spinning the motor shaft while assembling the pump ensures that parts are properly aligned If they are not and you start the pump serious damage could result to the motor beari
24. rocedures should be performed only by qualified repair personnel with an electrical back ground using the proper tools Failure to do the pro cedures correctly can result in electric shock or oth er serious injury and damage to the pump WARNING Always follow the Pressure Relief Procedure Warning on page 8 before attempting any repair NOTE For all electrical repair follow the Pressure Relief Procedure Warning on page 8 and then remove the base plate 42 screws 33 and bumpers 43 Reinstall these parts making sure all wires are tucked in neatly before checking or operat ing the system Fuse See Fig 10 1 Remove the old fuse 67 and install a new one Use only a 3AG 1 amp fuse Rectifier See Fig 11 1 Disconnect the four leads from the rectifier 2 Remove the rectifier 39 3 Install a new rectifier so the positive terminal is closest to the fuse holder 65 4 Connect the blue lead to an unmarked terminal and the pressure switch lead to the other unmarked ter minal Connect the black motor lead to the negative terminal and the red motor lead to the positive terminal Fig 10 10 307 760 ON OFF Switch See Fig 10 amp 11 1 Disconnect the two leads from the ON OFF switch terminals See Fig 11 2 Remove the boot 36 Pull the switch 84 out of the base See Fig 10 3 Install the new switch aligning the tab in the base with the slot in the switch See Fig 10 In
25. stall the boot 4 Connect a pressure switch lead to the power out ter minal and a jumper wire lead to the power in termi nal of the new ON OFF switch WARNING To maintain grounding continuity in your system and reduce the risk of electric shock be sure the green ground wire from the power supply cord is properly connected to the grounding screw 83 as instructed in Step 4 above Also be sure the screw 25 is tightly screwed into the base See Fig 10 and 11 Power Supply Cord See Fig 11 1 Disconnect the power supply cord leads from the ter minal strip 71 by loosening the three screws on the cord side of the strip See Fig 11 2 Loosen the screw in the side of the strain relief bush ing 38 and pull out the cord 3 Strip approximately 6 mm 1 4 in of insulation off each end of the new cord Install the new cord and connect the leads to the terminal strip as shown in Fig 11 being sure that each color lead is across from a like colored lead 4 Install an appropriate three pin plug on the other end of the power supply cord 33b YELLOW GREEN PRESSURE SWITCH 2 LEADS MOTOR LEADS Fig 11 REPAIR Pressure Switch See Fig 11 12 amp 13 1 Disconnect the pressure switch leads from the ON OFF switch and from the rectifier See Fig 11 2 Remove the front cover 23 See Fig 13 3 Unscrew the retainer 14 and remove the pressure switch 12 and o ring 12a See Fig 12 4 Greas
26. t be interchangeable individually Assembly Part No Changed 220 970 Old 220 952 _ Fitting Outlet Valve New 2a 222 349 Fitting 220 240 Old 220 930 Inlet Valve Sprayer New 3 220 931 Inlet Valve To Series E Old 181 166 Cover New 23 181 839 Cover Added 1 26 100 028 Lockwasher Added 4 30a 596 421 Terminal Added 1 33 108 224 Screw 181 167 183 301 181 574 181 799 108 419 67 104 188 78 102 799 Terminal Rey feo 103 584 Screw New 83 103 854 Screw 84 158 223 Washer 85 108 716 Terminal Added jee 065 239 Wire 87 Wire 218 935 Old 108 186 O ring Roller Frame New 55b 108 808 Seal Old 275 644 Nut New 55c 183 420 Nut NOTE A Basic System Model 221 076 has been add ed to this manual It is identical to Model 220 240 except it does not include a hose roller valve extension or roller 307 760 19 TECHNICAL DATA Maximum Operating Pressure 00 cece eee 17 5 bar 251 psi Power Requirements 0005 50Hz 220 240 Vac 1 Phase 0 5 amp Pump Output 00000 c cece eee ee eee 3 8 liter 1 gallon in 5 minutes Power Supply Cord 0 00 eee No 16 AWG 3 wire 6 ft 1 7 m long Wehi s s 40 deana ne nenhete seas nae ene RAS E EEOAE 6 1 Kg 13 5 Ib THE GRACO WARRANTY AND DISCLAIMERS WARRANTY Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on t
27. their manufacturer Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties Factory Branches Atlanta Chicago Dallas Detroit Los Angeles West Caldwell N J Subsidiary and Affiliate Companies Canada England Switzerland France Germany Hong Kong Japan GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 PRINTED IN U S A 307 760 1 86 Revised 8 89 20 307 760
28. to rain Always store the system indoors CAUTION Always allow cold equipment to warm to room tem perature before using to prevent damaging the sys tem Always store the system indoors CAUTION Do not use lacquer or lacquer thinner in the suction and outlet hoses supplied with this system These fluids quickly destroy the hose material Use the op tional chemical resistant hoses See ACCESSORIES page 17 for ordering optional hoses With the system fully primed trigger the roller valve briefly until paint comes to the roller Experiment with triggering and rolling the paint until you determine just how often you need to trigger the roller valve to keep an even flow of paint to the roller To adjust the extension tube length loosen the lock nut and extend or retract the tube If retracting some paint in the tube will be pushed out to the roller Roll this excess paint onto the wall or completely retract the tube drain the excess paint into a pail and then adjust the tube length Tighten the locknut securely Whenever you stop painting turn the ON OFF switch to OFF and trigger the roller valve Elevate the roller end of the tube to prevent paint from draining out the roller end Flush the system thoroughly and immediately after each use to keep it in good working order See page 6 307 760 5 MAINTENANCE CAUTION Thorough flushing and proper maintenance are es sential to keep your system working properly
29. use with lacquer or lacquer thinners 220 009 Outlet Hose 9 mm 3 8 ID cpld 3 8 npsm fbe 15 m 50 17 5 bar 250 psi MAXIMUM WORKING PRESSURE NIPPLE 108 228 Needed to couple two lengths of hose 220 009 3 8 npsm mbe ADAPTER FITTING 220 265 5000 psi 350 bar MAXIMUM WORKING PRESSURE Couples roller frame directly to roller valve 18 307 760 3 INCH ROLLER FRAME amp DIFFUSER 220 234 Same as 9 in version but shorter See page 16 Must order cover separately 3 INCH ROLLER COVER 108 402 1 2 in 12 mm nap for semi rough to smooth surfaces 9 INCH ROLLER COVERS 107 590 12 mm 1 2 in nap for semi rough to smooth surfaces 107 591 19 mm 3 4 in nap for semi rough sur faces 107 592 32 mm 1 1 4 in nap for rough surfaces ADJUSTABLE EXTENSION TUBES 218 775 0 45 0 9 m 18 36 in 218 776 0 9 1 8 m 3 6 ft 218 777 1 8 3 7 m 6 12 ft 218 778 2 4 4 8 m 8 16 ft SPRAY WAND 220 236 4050 psi 260 bar MAXIMUM WORKING PRESSURE Creates soft spray when used with the PT2000 TWO ACCESSORY ADAPTER 220 232 1000 psi 70 bar MAXIMUM WORKING PRESSURE Adapts pump outlet of PT2000 to use two accessory applicators simultaneously FLUSH ADAPTER 220 231 Allows you to use the city water supply to quickly flush the PT2000 SERVICE INFORMATION Listed below by the assembly changed are OLD NEW ADDED and DELETED parts OLD and NEW parts are interchangeable ADDED and DELETED parts may no
30. ut Replace See page 10 If it burns out again quickly return the system for repair Low paint flow or no paint flow Clogged roller valve diffuser roller frame on thoroughly after each use See page roller valve or hose Using more than 7 6 m 25 ft o Use up to 30 m 100 ft of 3 8 in ID hose 1 4 in ID hose See CAUTION on page 17 Loose inlet hose nut Pump runs after roller valve trigger is Worn pressure switch Replace See page 11 released Worn inlet valve Replace See page 11 Worn priming valve Replace See page 12 Worn roller valve packings or needle Repair See page 9 8 307 760 REPAIR Roller Valve WARNING Always follow the Pressure Relief Procedure Warning on page 8 before attempting any repair NOTE Order repair kit no 218 960 to repair this roller valve 1 Tap out the pin A and slide the trigger B off of the valve See Fig 6 2 Remove the cap C Unscrew the fluid housing D See Fig 6 Pull the needle K out 4 Tap the seat G out of the roller valve N See Fig 6 5 Remove the ball F and spring E See Fig 6 6 Turn the nylon screw L into the packing Insert the needle K through the housing D and push out the packing H See Fig 7 7 Clean all parts thoroughly Use a cotton tipped swab or pipe cleaner to clean small orifices 8 Grease the needle K and packing H Insert the ta pered end of the needle into the back flat side o
31. ystem as shown in Fig 2 following the To avoid premature wear of the pressure switch never use more than 7 6 m 25 ft of 1 4 in ID outlet hose When longer outlet hose is needed use 3 8 A in ID hose at a maximum of 30 m 100 ft long Nev er use 1 4 in ID and 3 8 in ID hose together 3 See ACCESSORIES page 17 for ordering optional hoses WARNING Never remove the grounding pin of the power sup ply cord plug Be sure the outlet is properly grounded In the event of an electrical short circuit grounding reduces the risk of an electric shock by providing an escape wire for the electric current Inspect the power supply cord and extension cord before each use Be sure they are in good condition and have undamaged three pin plugs Replace immediately if either cord is worn or damaged 4 307 760 notes on the drawing Prepare the paint according to the manufacturer s recommendations Remove any skin from the top of the paint Strain the paint Thin the paint as needed Be sure the electrical service is properly rated for your sprayer and that the outlet you use is properly grounded Install an appropriate plug on the power supply cord according to your local electrical code Do not use an adapter All extension cords must have three wires Use the chart below for selecting the ap propriate wire gauge for the extension cord Extension Cord Chart Extension Cord Cross Sectional Area Cord Length m
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