Graco 308647P- User Manual

6 308647 Installation H Multiple Circulating Spray Station Key A Air regulatorB Bleed-type master air valveC PumpD Fluid filter and drain valveE Main fluid supply line F Gun fluid supply line G Fluid regulator with fluid pressure gauge (H) H Fluid pressure gaugeJ Air-assisted airless spray gun K Bac...

7 308647 Installation Grounding the System WARNING FIRE AND EXPLOSION HAZARDBefore operating the fluid pressureregulator, ground the system asexplained below. Pump: Use a ground wire and clamp. Loosen thegrounding lug locknut (W) and washer (X). Insert oneend of a 1.5 mm @ (12 ga) minimum ground wir...

8 308647 Operation Adjusting the System Pressure CAUTION D The new system must be cleaned and testedthoroughly before admitting fluid to the regulatorto avoid contaminants clogging or damaging theregulator. D Always use the lowest possible air and fluidpressures for your application. High pressuresc...

9 308647 Operation Flushing D Flush before changing colors, before fluid can dry inthe equipment, at the end of the day, before storing,and before repairing equipment. D Flush at the lowest pressure possible. Checkconnectors for leaks and tighten as necessary. D Flush with a fluid that is compatible...

10 308647 Troubleshooting WARNING To reduce the risk of serious bodily injury, includingskin injection, splashing in the eyes or on the skin,or injury from moving parts, always follow the Pres-sure Relief Procedure on page 5 whenever thepump is shut off, before installing, cleaning, adjust-ing, remo...

11 308647 Service Service Kits For the Fluid Diaphragm Repair Kit, order Part 238747.Parts included in this kit are marked with an asterisk,for example (7*), in the Parts Drawings and Lists onpages 14 and 16. For the Cartridge Repair Kit, order Part 238748 for allmodels except 248090. Parts included...

12 308647 Service Replacing the Fluid Diaphragms See Fig. 3, and follow the steps below. For parts thatare not called out in Fig. 3, see the Parts Drawing onpage 14. 1. Relieve the pressure, and remove the regulatorfrom the fluid line. WARNING To reduce the risk of serious injury whenever youare ins...

13 308647 Service Replacing the Cartridge See Fig. 3, and follow the steps below. For parts thatare not called out in Fig. 3, see the Parts Drawing onpage 14. CAUTION Handle the hard carbide parts, which are the ball(16), valve actuator (1), and valve seat (14), carefullyto avoid damaging them. 1. R...

14 308647 Parts Drawing Models 238889, 238890, 238891, and 238892 06289 Torque to 140 to 160 in-lb (16 to 18 N S m). 238889 with EZ Flush gauge port plug238890 with fluid pressure gauge Spring-Operated Regulator 500 to 3000 psi (3.4 to 21 MPa, 34 to 207 bar)Regulated Fluid Outlet Pressure 3 1 19* 1 ...

15 308647 Parts List Models 238889, 238890, 238891, and 238892 Ref. Part No. Description Qty. 1 * ACTUATOR 1 2 238858 COVER, spring 1 3 { 191577 NUT, spring retainer 1 4 191578 BASE HOUSING; sst 1 5 { 191579 VALVE HOUSING; sst 1 6 191580 RETAINER, spring, guide 1 7 * PLUNGER, spring 1 8 191583 PLATE...

20 308647 Technical Data Model 238890spring operated, withfluid pressure gauge M d l 238889 Model 238892spring operated, withfluid pressure gauge M d l 238891 Models 238894, 248090, and 255072air operated, withfluid pressure gauge Model 244734air operated, withpressure sensorports Model 238889spring...

21 308647 0 1000 2000 3000 4000 5000 6000 0.0 0.5 1.0 1.5 2.0 Performance Chart (3.8) (5.7) (7.6) FLUID FLOW psi (MPa, bar) Test Conditions Regulators tested in oil at 70 _ F (21 _ C) and at 6000 psi (41 MPa, 414 bar) inbound fluid pressure. Key 65 cp oil3000 cp oil REGULA TED (outbound) FLUID PRESS...

23 308647 Dimensional Drawings 06288 06290 Models 238889 and 238891 with port plugModels 238890 and 238892 with gauge(spring operated) Model 238893 with port plugModel 238894 with gaugeModels 248090 and 255072 with gauge and1/2 npt inlet and outlet ports (air operated) A A Height: 8.9 in. (225 mm) B...

24 308647 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free fromdefects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended,or limi...