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Graco 218938 - page 1
APPLICA TION EQUIPMENT FROM GRACO INSTRUCTIONS-P ARTS LIST 307–730 Rev G Supersedes E (and F , not published) 1/4 Gallon Per Minute, 120 V AC, 60 Hz PT2000 Pressure Roller System 250 psi (17.5 bar) MAXIMUM WORKING PRESSURE Model 218–938, Series B with 18 inch Extension and 1/2 and 3/4 inch nap Roller Covers Model 223–660, Series A Basic P ...
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Graco 218938 - page 2
307-730 CAUTION T o avoid premature wear of the pressure switch, never use more than 25 ft (7.6 m) of 1/4” ID outlet hose. When longer outlet hose is needed, use 3/8” ID hose at a maximum of 100 ft (30 m) long. Never use 1/4” ID and 3/8” ID hose together . Do not use lacquer or lacquer thinner in the suction and outlet hoses supplied wi ...
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Graco 218938 - page 3
3 307-730 A VERTISSEMENT Assurez–vous que tous les utilisateurs de cet équipment lisent, comprennent et observent les avertissements et les instructions de ce manuel! SECURITE GENERAL Faites extrêmement attention de ne pas éclabousser de peinture, d’eau de rinçage sale ni de solvant dans les yeux. Portez de lunettes de protection. Assurez-v ...
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Graco 218938 - page 4
4 307-730 ADVERTENCIA Asegurarse de que todos los operadores de este equipo lean, entiendan y repeten las precauciones e instrucciones indicadas en este manual. SEGURIDAD EN GENERAL T ener extremo cuidado de no salpicarse los ojos con pintura, agua de enjuague contaminada o solvente. Usar gafas protectoras. Asegurarse de que el lugar de trabajo ten ...
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Graco 218938 - page 5
5 307-730 PT2000 PRESSURE ROLLER SYSTEM DESCRIPTION SUCTION HOSE PRIMING TUBE INLET V AL VE MOTOR ON/OFF SWITCH POWER SUPPL Y CORD ROLLER V AL VE PRIMING V AL VE P AINT FIL TER 25 FT . (7.6 M) HOSE 18 INCH EXTENSION 9 INCH ROLLER FRAME ROLLER COVER 0285 Motor The motor drives the connecting rod which moves the diaphragm. Pressure Switch The pressur ...
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Graco 218938 - page 6
6 307-730 SETUP SUCTION HOSE PRIMING TUBE INLET V AL VE MOTOR ON/OFF SWITCH POWER SUPPL Y CORD ROLLER V AL VE PRIMING V AL VE P AINT FIL TER 25 FT . (7.6 M) HOSE 18 INCH EXTENSION 9 INCH ROLLER FRAME ROLLER COVER 0285 USE TWO WRENCHES T O TIGHTEN SPRING GUARD MUST BE A T ROLLER V AL VE INLET TRIGGER HAND TIGHTEN ONL Y TO A VOID CRACKING ROLLER COVE ...
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Graco 218938 - page 7
7 307-730 ST ARTUP 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 of f the sys - tem, when checking or servicing any part of the sys - tem and whenever you stop painting. 1. T urn the ON/OFF switch to OFF . 2. Unplug the po ...
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Graco 218938 - page 8
8 307-730 MAINTENANCE Thorough flushing and proper maintenance are essential to keep your system working properly . 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 immediate - ly after each use. Always drain all wat ...
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Graco 218938 - page 9
9 307-730 Flushing Procedure (Oil-based Paint Only) NOTE: Follow the instructions on page 8, except use mineral spirits. DO NOT heat the mineral spirits. Installing and Removing a Roller Cover (See Fig 4.) 1. T o install a cover , hold the dif fuser and unscrew the retainer nut. Pull the dif fuser of f the frame. Slide the cover over the dif fuser ...
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Graco 218938 - page 10
10 307-730 TROUBLESHOOTING GUIDE 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 of f the sys - tem, when checking or servicing any part of the sys - tem and whenever you stop painting . 1. T urn the ON/OFF switch to OFF . 2 ...
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Graco 218938 - page 11
11 307-730 Roller V alve W ARNING Always follow the Pressure Relief Procedure W arning on page 10 before attempting any repair . NOTE: Order Repair Kit P/N 218–960 to repair this roller valve. 1. T ap out the pin (A) from the trigger (B) and slide the trigger of f of the valve (N). See Fig 6 . 2. Remove the cap (C). Use a 1/2 in. socket wrench to ...
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Graco 218938 - page 12
12 307-730 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 of f the sys - tem, when checking or servicing any part of the sys - tem and whenever you stop painting . 1. T urn the ON/OFF switch to OFF . 2. Unplug the power sup ...
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Graco 218938 - page 13
13 307-730 Pressure Switch (See Fig 1 1, 12 & 13 .) 1. Disconnect the pressure switch leads from the ON/ OFF switch and from the rectifier . See Fig 1 1. 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. Grease and install a new o-ring (12a) in the pum ...
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Graco 218938 - page 14
14 307-730 Diaphragm (See Fig 14 .) CAUTION Replace the diaphragm whenever you remove the pump housing (9), or after each 100 hours of use, whichever comes first. During use, small grooves are formed in the diaphragm which cannot be re- aligned properly . Reusing a diaphragm may cause leaking, resulting in costly pump damage. 1. Remove the screws ( ...
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Graco 218938 - page 15
15 307-730 Connecting Rod and Bearing (See Fig 16 .) 1. Remove the front cover (23). Remove the screws (15). Carefully tip back the pump housing. Unscrew the diaphragm (17) and discard it. CAUTION Replace the diaphragm whenever you remove the pump housing (9), or after each 100 hours of use, whichever comes first. During use, small grooves are form ...
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Graco 218938 - page 16
16 307-730 P ARTS DRA WING Part of 10 page 17 LUBRICA TE, TORQUE T O 85 in–lb (9.6 N.m) SEE DET AIL A, page 17 PRESS FIT INT O 22 34 68 67 28 43 33 33 39 25 26 69 36 30 32 44 47 45 46 15 16 22 11 17 48 49 27 21 20 18 23 24 29 LABEL 96 LABEL 0301 52 54 LABEL 42 80 81 84 26 41 33 82 65 38 37 31 26 25 35 LABEL ...
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Graco 218938 - page 17
17 307-730 P ARTS DRA WING TORQUE T O 55–65 in–lb (6.2–7.4 N.m) 0788 0303 0244 94 62 or 89 63a 63a 63 93 60 64 12a 12 14 1 3 10 9 2f 2e 2d 2c 2b 2a 2 APPL Y SEALANT TO THREADS TORQUE T O 80–100 in–lb (13.5–16 N.m) TORQUE T O 280–300 in–lb (32–34 N.m) TORQUE T O 470–490 in–lb (33–35 N.m) APPL Y T APE TO THREADS 55e 55a 55b 55 ...
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Graco 218938 - page 18
18 307-730 P ARTS LIST Model 218–938, Series B Includes items 1–96 Model 223–660, Series A (Basic Unit) Includes items 1–54, 65–84, 96 Ref No. Part No. Description Qty 1 220–930 HOUSING, valve, inlet 1 2 218–977* OUTLET V AL VE KIT Includes items 2a–2f 1 2a 222–349 . FITTING, outlet 1 2b 180–454 . GASKET 1 2c 107–521 . SPRING ...
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Graco 218938 - page 19
19 307-730 ACCESSORIES Must be purchased separately . CAUTION T o avoid premature wear of the pressure switch, never use more than 25 ft. (7.6 m) of 1/4” ID outlet hose. When longer outlet hose is needed, use 3/8” ID hose at a maximum of 100 ft (30 m) long. Never use 1/4” ID and 3/8” ID hose together . Do not use lacquer or lacquer thinner ...
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Graco 218938 - page 20
20 307-730 TECHNICAL DA TA Maximum Operating Pressure 250 psi (17.5 bar) . . . . . Power Requirements 120 V AC, 60 Hz, . . . . . . . . . . . . . 1 Phase, 1.0 Amp Pump Output 1 gallon (3.8 liter) in 5 minutes . . . . . . . . . Power Supply Cord No. 16 A WG, 3 wire, . . . . . . . . . . . . 6’ (1.7 m) long W etted Parts Aluminum, Brass, V iton , ...
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