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INSTRUCTIONS-PARTS LIST
This manual contains IMPORTANT
INSTRUCTIONS and WARNINGS.
READ AND RETAIN FOR REFERENCE.
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 Pressure Roller, without hose, gun, extension or roller
U.S. Patent No. 4,722,230; 4,652,024
Foreign Patents Pending
CONTENTS
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Always Professional Results
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
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Model 218-938 shown
COPYRIGHT 1985, GRACO INC.
APPLICATION EQUIPMENT FROM GRACO
307-730
Rev G
Supersedes E
(and F, not published)
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Table of Contents
Related Manuals for Graco 218-938
Summary of Contents for Graco 218-938
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Page 1: Table Of Contents
INSTRUCTIONS-PARTS LIST This manual contains IMPORTANT INSTRUCTIONS and WARNINGS. READ AND RETAIN FOR REFERENCE. 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 Pressure Roller, without hose, gun, extension or roller U.S. -
Page 2: Terms
To 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. - Page 3 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.
- Page 4 Asegurarse de que todos los operadores de este equipo lean, entiendan y repeten las precauciones e instrucciones indicadas en este manual. SEGURIDAD EN GENERAL Tener extremo cuidado de no salpicarse los ojos con pintura, agua de enjuague contaminada o solvente. Usar gafas protectoras.
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Page 5: System Description
PT2000 PRESSURE ROLLER SYSTEM DESCRIPTION SUCTION HOSE INLET VALVE MOTOR POWER SUPPLY CORD ON/OFF SWITCH 25 FT. (7.6 M) HOSE ROLLER VALVE 18 INCH EXTENSION 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. -
Page 6: Setup
SUCTION HOSE INLET VALVE MOTOR POWER SUPPLY CORD ON/OFF SWITCH SPRING GUARD MUST BE AT ROLLER VALVE INLET USE TWO WRENCHES TO TIGHTEN ROLLER VALVE 18 INCH EXTENSION Fig 1 1. Remove all parts from the boxes and assemble them as shown in Fig 1, following the notes on the drawing. -
Page 7: Startup
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- tem, when checking or servicing any part of the sys- tem and whenever you stop painting. -
Page 8: Maintenance
CAUTION 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. -
Page 9: Roller Cover
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. To install a cover, hold the diffuser and unscrew the retainer nut. -
Page 10: Troubleshooting Guide
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- tem, when checking or servicing any part of the sys- tem and whenever you stop painting. -
Page 11: Roller Valve
Roller Valve WARNING Always follow the Pressure Relief Procedure Warning on page 10 before attempting any repair. NOTE: Order Repair Kit P/N 218–960 to repair this roller valve. 1. Tap out the pin (A) from the trigger (B) and slide the trigger off of the valve (N). -
Page 12: Fuse
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- tem, when checking or servicing any part of the sys- tem and whenever you stop painting. -
Page 13: Pressure Switch
Pressure Switch (See Fig 11, 12 & 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). -
Page 14: Diaphragm
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. -
Page 15: Motor, Conn Rod, Bearing
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. -
Page 16: Parts Drawing & Lists
PARTS DRAWING PRESS FIT INTO 22 LABEL LUBRICATE, TORQUE TO 85 in–lb (9.6 N.m) LABEL LABEL Part of 10 page 17 SEE DETAIL A, page 17 LABEL... - Page 17 PARTS DRAWING DETAIL A TORQUE TO 470–490 in–lb (33–35 N.m) APPLY SEALANT TO THREADS APPLY TO THREADS LUBRICATE TORQUE TO 80–100 in–lb (13.5–16 N.m) TORQUE TO 55–65 in–lb (6.2–7.4 N.m) SEE REPAIR PARTS ON PAGE 19 DETAIL B Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä...
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Page 18: Parts List
PARTS LIST Model 218–938, Series B Includes items 1–96 Model 223–660, Series A (Basic Unit) Includes items 1–54, 65–84, 96 Part No. Description 220–930 HOUSING, valve, inlet 218–977* OUTLET VALVE KIT Includes items 2a–2f 222–349 . FITTING, outlet 180–454 . GASKET 107–521 . -
Page 19: Accessories
ACCESSORIES Must be purchased separately . CAUTION To 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”... -
Page 20: Technical Data
TECHNICAL DATA Maximum Operating Pressure ..Power Requirements ... . . Pump Output ..1 gallon (3.8 liter) in 5 minutes Power Supply Cord .
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