Instruction/ maintenance manual of the product 715 Graco
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Instructions Dispensit 71 5 Usage State ment – Depending o n valve configuratio n this valve can be used to dispense t he following: Acrylics • Urethanes • Lubricants • UV Curables • Sil.
2 DISPENSIT ® MODEL 715 DISPENSE VALVE OPERATING & MA INTEN ANCE MA NU A L General Information ................................................................................... 3 Safety Information ..............................................
3 GENERA L INFORMAT ION The Model 715 Dispe nse Valve is an On/Of f valve designed for a cont inuous flow of viscous m ate r ial through a dispense needle in automatic, sem i-autom atic or manual applications. It is sh ipped com plete with the following: Model 715 Dispense Valve Two 3 foot (.
4 DESCRIPTION OF OPERA TION 1. The norm al “ready” state of the s y stem is as follows: The material supp ly line is filled with dispensable m aterial. The s y stem has been p urged, filling the valve with material up to the Spool (2). The Spool (2) is seate d in the lower Posipak Seal (6).
5 SETUP PROCED URE MOUNTING DISPENSE VALVE Mounting holes are dr illed through th e valve bod y. The valve m ay be tilted to a m aximum of 60 degrees from the vertical depending on the application. A IR CONTROLLER Operation of the Mode l 715 Dispense Valve re quires a controller th at can provide the follo wing: A minim um of 0.
6 OPERA TING PROCEDU RES WET CUP LOADING Some models are equipped with a wet cup around the Spool (2) t o keep it wetted. This helps prevent cur ing or crystallization of m aterial on the spool and conse quent prem ature seal failure. Fi ll the wet cup with a compatible self-leveling m aterial prior to operati on if your valve is so equ ipped.
7 PERIODIC M A INTENANCE DISPENSE NOZZLE/NEEDLE REPLACEMENT If no m aterial or reduced volumes of material come out of the dispense nozzle/needle it m ay be partiall y or completely clogged. C lean with water or s ol vent depending on th e material dispe nsed.
8 MODEL 715 GENERAL ILLUSTRA TION 1 AIR CYLINDER A SSEMBLY 2 SPOOL 3 MATERIAL INLET 4 ADAPTER 5 NOZZLE (som e models) 6 POSIPAK SEAL (2 pi eces m ost models, 4 pieces som e models) 7 O-RING 8 SCREW 9 .
9 PERIODIC M A INTENANCE DISASSEMBLY - AIR CYLINDER ASSEMBLY Re fer to the illustr ation on the next page a nd the drawings in the back of this m anual for your e xact m odel. 1. Turn off the air sup ply and disconnect the air lines. 2. Turn off the m aterial supply and rem ove the material li ne from the Material Inl et (3).
10 MODEL 715 AIR CYLINDER A SSEMBLY ILLUSTRATION 1 AIR CYLINDER BOD Y 2 END CAP 3 SNUFF-BACK ADJU STMENT KNOB 4 PISTON 5 PISTON ROD 6 ELBOW 8 SCREW,#6-32 x 5/1 6 9 SCREW,#6-32 x ½ 11 SCREW,#10-24 x 1.
11 TROUBL ESHOOTING If operating diff iculties are encountered, re view the s y m ptom s below. With each pr oblem there are one o r more possible causes that sh ould be investigat ed to resolve the si tuation. NOTHING H APPENS - If absolutel y nothing happens when trying to c ycle the Dispense Head, check the electric pneumatic power.
12 MODEL 715 RECO MMENDED SPA RE PART S Note: These parts are routine suppl y items or wear parts not cov ered by wa rranty for normal w ear. Quantity Description Part Number 1 SEAL KIT,715 see assemb.
13 GENERA L GUIDELINES F OR O-RINGS A ND U-CUP SEALS Sizes and materia ls of construction for O -rings and U -cup seals are se lected by Gr aco based on com patibility with the chemicals to which they will be expos ed. Solvents that m ay remove residual chem icals often have negative effects on the m echanical properties of O- rings and seals.
14 Graco warran ts all equipment refere nced in this do cument which is manufacture d by Graco and beari ng its name to be free from defects in material and wo rkmanship on the d ate of sale to the origina l purchas er for use.
An important point after buying a device Graco 715 (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 715 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 715 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco 715 you will learn all the available features of the product, as well as information on its operation. The information that you get Graco 715 will certainly help you make a decision on the purchase.
If you already are a holder of Graco 715, 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 715.
However, one of the most important roles played by the user manual is to help in solving problems with Graco 715. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco 715 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
