Graco SG2, Operation & Service Instructions

Page 1: ...Spindl Gard SG 1 SG 2 System Operation Service Instructions ...

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Page 3: ...allation 2 2 2 2 Typical Spray Nozzle Installation 2 3 Item Page 2 3 SG 1 Typical Machining Head Modification 2 4 2 4 Reversing Seals 2 4 2 5 Pump and Header Installation 2 5 2 6 Nozzle Tube Applications 2 6 2 7 Nozzle Tube Installation 2 7 2 8 Mixing Tee 2 8 2 9 Air Flow Switch Installation 2 9 2 10 Air Flow Switch and Mixing Tees 2 10 3 1 Filling Secondary Divider Valves Supply Tubes 3 3 3 2 Ble...

Page 4: ...vides full protection without over or under lubing 1 3 SG 1 COMPONENTS AND OPERATION OVERVIEW 1 3 1 General SG 1 utilizes a standard Trabon pump package typically Graco s Modu Flo series a Model MSP lubricant divider valve with cycle indicator switch Maxi Monitor controller and various fluid line accessories See Figure 1 1 In some cases the machine controller will be used in lieu of the Maxi Monit...

Page 5: ...Spindl Gard SG 1 and SG 2 Systems 1 2 L42110 Figure 1 1 SG 1 System ...

Page 6: ...to the valve section of the divider valve and senses the movement of the divider valve piston during cycling The proximity switch provides a signal that is used to monitor the system in the same manner as the cycle switch 1 3 2 8 Spindl Gard Spray Nozzle The basic nozzle can be installed in heads with walls up to 1 3 4 inches 44 4 mm thick It has separate 1 8 inch NPT inlet ports for air and oil N...

Page 7: ... type a restrictor assembly consists of a fitting with 1 8 NPT threads which thread into the machining head wall A 0 030 inch 0 76 mm orifice pressed in fitting provides an oil outlet at the restrictor end The tube and adapter assemblies consist of a cut to length tube which is inserted into an adapter The adapter threads or bolts directly into the machining head wall The tube is cut to a length a...

Page 8: ...1 5 Spindl Gard SG 1 and SG 2 Systems L42110 1 6 Blank Figure 1 2 SG 2 System ...

Page 9: ...erly positioned in the wall Figure 2 2 shows SG 1 sample installations with the machine head mounted in a horizontal and vertical orientation 2 2 2 2 The procedure for installing the spray nozzle is as follows Mark the location of spray nozzle installation as a determined during system design CAUTION Before drilling into walls obtain machining head prints to locate internal components Avoid striki...

Page 10: ... from the divider valve can supply the bearing with the proper amount of lubricant Information from the design process should locate any bearings which need this treatment 2 2 3 2 All inward facing lip seals on the shaft should be reversed to face outward Reversing the inward facing seal reduces the possibility of contaminants entering the head Figure 2 4 shows a typical seal arrangement on a vert...

Page 11: ...2 3 Spindl Gard SG 1 and SG 2 Systems L42110 Figure 2 2 Typical Spray Nozzle Installation HORIZONTAL HEAD APPLICATION VERTICAL HEAD APPLICATION ...

Page 12: ...es Divider valves which receive lubricant from a primary divider valve are referred to as sec ondary divider valves Installation is identical for all divider valves Generally divider valves supplying Spindl Gard com ponents are primary divider valves Secondary valves are usually designed to provide lubricant to terminating bearing points on the system Cycle switches or proximity switches can be in...

Page 13: ...low Keep all lube lines along the contour of the machining head 2 3 SG 2 SYSTEM INSTALLATION 2 3 1 General Paragraphs 2 3 2 through 2 3 8 discuss the installation and mounting of components of SG 2 systems Paragraphs 2 3 9 and 2 3 10 discuss the final pneumatic and lube line connec tions which complete the installation process The informa tion provided in these paragraphs is designed to apply to a...

Page 14: ...ted as discussed in paragraph 2 3 2 2 Nozzle tubes are shipped in 10 inch lengths and must be cut to proper length for each instal lation Figure 2 7 shows a typical installation of a nozzle tube and should be referred to during the following procedure Determine length of nozzle tube required by a reviewing machining head prints This is dimension L on Figure 2 7 Allow 0 625 inch 15 9 mm extra lengt...

Page 15: ...s specially designed to provide proper air oil flow through the tube Outlet fitting must not be replaced with standard commercial fittings The air oil delivery tube requires a 45 degree inverted flare to seal properly in the nozzle tube assembly Use only Graco supplied nut on outlet fitting Do not use compression fittings Always install an external check valve at the lube inlet of the mixing tee 2...

Page 16: ... Refer to schematics provided with the controller to determine prop er wiring connections Mount the controller in an accessible location where connection wiring does not pose a hazard 2 3 9 Pneumatic Connections 2 3 9 1 General When all required components have been installed pneumatic connections may be completed When installing pneumatic tubing avoid severe bends or kinks which could deter air f...

Page 17: ...ctions may be completed Connections are required to connect the divider valves to the pump or header and to connect the divider valves to the mixing tees 2 3 10 2 Various inlet and outlet port types are available on MSP divider valves Matching port types are available on mixing tees and accessories Steel or copper tubing with 3 8 inch 9 5 mm OD is recommended from the pump or header to the divider...

Page 18: ...2 10 Spindl Gard SG 1 and SG 2 Systems L42110 Figure 2 10 Air Flow Switch and Mixing Tees ...

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Page 20: ... one or more master divider valves which may provide oil to either secondary dividers dispensing nozzles or terminating lube points In this case the master divider valves are usually equipped with a zero leak valve to allow independent lubrication of each area receiving lubricant 3 2 1 2 The filling and bleeding operation is separated into several major procedures as follows Initial Adjustments pa...

Page 21: ...secondary manifold Remove plug or performance indicator from the b indicator port adjacent to each outlet tube of the secondary manifold Install a lube fitting in the open indicator port and c attach hand pump to the fitting Cycle hand pump until air free lubricant is d dispensed from the lube line Point A B or C Tighten lube line at Points A B or C Remove hand pump and lube fittings at indicator ...

Page 22: ...3 3 Spindl Gard SG 1 and SG 2 Systems L42110 Figure 3 1 Filling Secondary Divider Valve Supply Tubes Figure 3 2 Bleeding Secondary Divider Valve ...

Page 23: ...ods Remove lines at spray nozzle mixing tee or bearing point Points A B or C Figure 3 1 cycle pump and open zero leak valves As the divider valves cycle check to see if oil is dispensed If no fluid is dispensed system is not completely bled or a component is not operating correctly If the system is equipped with optional cycle switch remove cycle switch and manually cycle the pump until the indica...

Page 24: ...tube The following steps should be fol lowed before starting the spindle Check oil supply to ensure enough oil is present a for the operating period Oil depletion results in air entering the system which requires that the bleeding process be repeated Turn on air to mixing tee Verify that air to tee is b regulated to 30 psi 2 1 bar If air flow switches are used inlet pressure at the switch should b...

Page 25: ...of SG 1 and SG 2 systems do not generally require adjustment Precise output is determined during the design process and in most cases will remain constant However factors such as different speed requirements or machining head changes may require lubricant output modifications Contact a Graco distributor representative or Graco for correct methods to vary the output from the original setting 3 5 SH...

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Page 27: ...pens the check valve and enters the chamber where air dis tributes the oil into the spray pattern A defective check valve could allow the oil from the supplying tubes to leak into the spray nozzle even when the divider valve is not cycling This could cause a void resulting in an improper amount of lubricant being dispensed 4 2 3 Machining Head Pressure Pressure switches may be mounted on the spind...

Page 28: ... System Troubleshooting Problem Probable Cause Corrective Action Cycle times increase in length A Leaking fitting or tubes 1 Tighten all fittings and check tubes for 1 cracks or leaks Supple pump is worn 2 Repair supply pump 2 Pressure spikes or slight pressure rises B detected at pump pressure gauge or performance indicators Air volume supplied to pump is too high 1 Add air restrictor to air inle...

Page 29: ...4 3 Spindl Gard SG 1 and SG 2 Systems L42110 4 4 Blank Figure 4 1 Spray Nozzle Figure 4 2 Mixing Tee ...

Page 30: ...73 000 234 Relief Valve 2 psi 0 14 bar 564337 463 300 156 Soft Seat Check Valve 563048 463 001 535 Spray Nozzle para 5 2 563128 484 095 030 Pressure Switch 1 psi 0 07 bar 558888 492 140 597 Table 5 3 SG 2 Components Description Part No Old Part No Air Flow Switch w Lights 564348 484 095 095 Divider Valve Inlet Filter Check 564326 463 001 605 Zero Leak Inlet Restrictor 463 410 170 End Outlet Nozzle...

Page 31: ... seal 10 from nozzle body 8 Remove end plug 1 with attached nozzle head 12 e from nozzle body 8 Remove nozzle head 12 from end plug 1 to f remove o ring 3 o ring retainer 4 gasket 5 pis ton 6 and spring 7 Discard o ring and gasket Remove and discard o ring 2 from end plug 1 g Remove air cap 9 from nozzle body 8 h 5 2 3 Spray Nozzle Assembly Procedure CAUTION Extreme care should be taken to prevent...

Page 32: ...zzle Assembly 1 1 560481 484 090 170 Plug End 1 2 556547 422 010 180 O Ring 1 3 555644 422 010 090 O Ring 1 4 556527 421 700 896 Retainer O Ring 1 5 556750 439 077 228 Gasket 1 6 15R987 475 020 379 Piston 1 7 556953 458 005 839 Spring 1 8 557182 484 090 180 Body Nozzle 1 9 560479 484 090 150 Cap Air 1 10 556706 439 030 130 Seal Thread 1 11 556374 410 701 985 Locknut 1 12 560480 484 090 160 Head No...

Page 33: ...xing Tee 1 1 557485 510 364 000 Roll Pin 3 32 diameter x 7 32 in 1 2 560471 484 060 118 Body Not Replaceable 1 3 557408 509 252 001 Keeper 1 4 557412 509 258 001 Gasket 1 5 556331 401 070 060 Ball 3 16 in 1 6 557410 509 253 010 Spring 1 7 557349 503 485 000 Plug 1 8 in Pipe 1 8 560476 484 090 080 Tube Oil Not Replaceable 1 9 560256 435 702 281 Fitting Outlet 1 10 555647 422 010 130 O Ring 013 1 ...

Page 34: ...ter TABLE 5 6 Nozzle Adapter FIGURE 5 3 PARTS LIST Item No Part No Old Part No Description Quantity 484 090 075 Nozzle Adapter 1 1 484 090 077 Body 1 2 435 702 273 Flare Nut Inverted 3 16 in 1 3 484 090 076 Retainer Nozzle 1 4 410 420 060 Nut Hex Jam 9 16 18 1 5 439 030 090 Seal Thread 1 ...

Page 35: ...RE 5 4 PARTS LIST Item No Part No Old Part No Description Quantity 484 090 193 Nozzle Adapter 1 1 484 090 077 Body 1 2 435 702 273 Flare Nut Inverted 3 16 in 1 3 484 090 076 Retainer Nozzle 1 4 410 702 026 Nut Hex Jam 9 16 18 1 5 461 300 954 Mounting Plate 1 6 419 130 020 Mounting Screw 1 4 20 x 1 2 in 2 7 422 220 070 O Ring 2 8 417 450 010 Setscrew 10 32 x 3 16 in 2 ...

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Page 37: ...with a Graco representative call 800 533 9655 or visit us online at www graco com 2006 2009 Graco Inc Form No L42110 Rev B 6 09 Printed in U S A All other brand names or marks are used for identification purposes and are trademarks of their respective owners All written and visual data contained in this document are based on the latest product information available at the time of publication Graco...