Instruction/ maintenance manual of the product 236770 Graco
Go to page of 8
ST AINLESS STEEL, W A TERBASE COMP A TIBLE Back Pressure Regulator For use in circulating systems to provide regulated back pressure to spray gun(s) and to maintain proper system pressure. Model 237503 is the back pressure regulator only . Model 236770 includes the gauge, tube, inlet adapter and outlet swivel union.
2 308401 W ARNING INSTRUCTIONS EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury . D This equipment is for professional use only . D Read all instruction manuals, tags, and labels before operating the equipment.
308401 3 Installation Fig. 1 KEY A Flu id Supply Line B Air Spray Gun C Fluid Pressure Regulator D Air Supply Line E Adjusting Screw F Back Pressure Regulator (236770 shown) G Fluid Return Line H Ball V alve A B C D E F G 03506 H Installing the Back Pressure Regulator CAUTION Handle the back pressure valve with care to avoid damaging the diaphragm.
4 308401 Service Pressure Relief Procedure W ARNING PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acci- dentally .
308401 5 Parts 8 11 9 3 7 13 14 20 12 1 2 17 10 19 18 1 2 3 5 15 6 03504 4 Ref. No. Part No. Description Qty . 12 189816 PLA TE, backup 1 13 177432 PLA TE, support, diaphragm 1 14 n 177431 DIAPHRAGM 1.
6 308401 Notes.
308401 7 Dimensions 3/8 npsm(f) Outlet 2.25 in. (57.2 m m diameter 7.25 in. (184 mm) Model 236770 shown 03505 3/8 npsm(m) Inlet Fig. 2 Manual Change Summary Assembly Changed Part Status Ref. No. Part N o. Name 236770 and 237503, to Series B Old New 20 20 187873 187876 Gauge Gauge Maximum inbound pressure is increased to 300 psi (21 bar , 2.
8 308401 The Graco W arranty and Disclaimers Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in ma t er i al and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use.
An important point after buying a device Graco 236770 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco 236770 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco 236770 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco 236770 you will learn all the available features of the product, as well as information on its operation. The information that you get Graco 236770 will certainly help you make a decision on the purchase.
If you already are a holder of Graco 236770, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco 236770.
However, one of the most important roles played by the user manual is to help in solving problems with Graco 236770. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco 236770 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
