Graco 750 - Manual

6 308703 Installation The installations in Fig. 2 are guides for selecting and installing system components. Contact your Graco distributorfor assistance in planning a system to suit your needs. Mounting Automatic and Manual Models Be sure the mounting surface can support the weight of the pump, sur...

308703 7 Operation Pressure Relief Procedure WARNING PRESSURIZED EQUIPMENT HAZARDThe equipment stays pressurized until pressure ismanually relieved. To reduce the risk of seriousinjury from pressurized fluid, accidental spray fromthe dispensing device, or splashing fluid, follow thisprocedure whenev...

8 308703 Operation Charging and Startup For optimum performance, surge suppressors should be charged to a pressure 2 to 10 psi (0.01 to 0.07 MPa,0.1 to 0.7 bar) lower than system pressure. Automatic Models CAUTION Automatic surge suppressors must have the airsupply connected before you start pumping...

308703 9 Troubleshooting WARNING To reduce the risk of serious injury whenever youare instructed to relieve pressure, always follow thePressure Relief Procedure on page 7. Relieve the pressure before checking or servicing theequipment. Check all possible problems and causes before disas-sembling the...

10 308703 Service Bladder Failure Normal life for bladders can be from a few months toseveral years, depending upon the harshness of theapplication. Below are common reasons for failedbladders or bellows: D Chemical attack: Check chemical compatibilitycharts. Consult your Graco distributor. D Cut bl...

308703 11 Service Torque Table Find the proper torque specifications for your surge suppressor unit in the table below. These are the torques towhich the clamp band, ring flange, or bolts in bolted units need to be tightened. KEY: plastic = polypropylene or acetalmetal = stainless steelrubber = fluo...

12 308703 Model Numbers Automatic Husky 750, 3/4-in Surge Suppressors Polypropylene Wetted Bottom Housing and Non-Wetted Top Housing 239096 with Buna–N bladder 239121 with PTFE bellows 239122 with fluoroelastomer bladder Stainless Steel Wetted Bottom Housing and Non-Wetted Top Housing 239095 with Bu...

308703 13 Parts Matrix Replacement Parts for Husky t 750 and Husky t 2000 Surge Suppressors, Series A Parts Surge Suppressor Models NOTE: The quantity of every part in this listis 1 for every model The X’s indicate the Automatic Husky 750 Automatic Husky 2000 Manual Husky 750 Manual Husky 2000 is 1 ...

14 308703 Parts Drawings (see Parts Matrix on page 13) A Model 239091 Model 239090 06890 06889 B B 5 5 4 4 9 21 2 3 2 3 8 8 20 20 22 22 24, 25, 26, 28 hanging on regulator 24, 25, 26, 28 hanging on regulator C A C

16 308703 Dimensions 06894 06892 06891 06887 23.25 in. (591 mm) Manual Husky 2000 239088 shown Automatic Husky 2000 239126 shown Manual Husky 750 239091 shown Automatic Husky 750 239096 shown 22.50 in. (572 mm) 13.25 in. (337 mm) 20.25 in. (514 mm) 20.25 in. (514 mm) 10.0 in. (254 mm) 10.0 in. (254 ...

308703 17 Technical Data Maximum air input pressure 120 psi (0.8 MPa, 8 bar) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air line connection 1/4 npt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....