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Before installing the PX-7 Gun and start-up, carefully read all the
technical and safety documentation included in this manual.
special attention to the information in order to know and understand
the operation and the conditions of use of the PX-7 Gun. All of the
information is aimed at improving user safety and avoiding possible
breakdowns from the incorrect use of the PX-7 Gun.
Mechanical Purge
Spray & Pour Gun
PX-7
For use with non-flammable Foam and
Polyurea
For professional use only
Not for use in explosive atmospheres
Service Manual
Ref. # MN-04028
Revision 2.1
August 11, 2017
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Polyurethane Machinery
Corporation
video instructions.
Polyurethane Machinery Corp.
Corporate: 1 Komo Drive, Lakewood, NJ 08701
Manufacturing: 2 Komo Drive, Lakewood, NJ 08701
Phone: 732-415-4400
Fax: 732-364-4025
URL:
http://www.polymac-usa.com
PMC,
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Summary of Contents for PMC PX-7
- Page 1 PX-7 Gun. All of the information is aimed at improving user safety and avoiding possible...
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Page 2: Table Of Contents
Gun Block Rebuild Kit, PX-7 ......................17 Screen Screw Kit, A-Side, PX-7 ..................... 18 Screen Screw Kit, R-Side, PX-7 ..................... 18 PX-7 Spare Parts Kit, #1, PX-7 ...................... 18 PX-7 Spare Parts Kit, #3, PX-7 ...................... 19 PX-7 Spare Parts Kit, #5, PX-7 ...................... 19 PX-7 Spare Parts Kit, A3, PX-7 ...................... - Page 3 Figure 15: Flush Block Installation ..................... 14 Figure 16: Clean Parts ........................14 Figure 17: Kit MA-41 Shown on PX-7 ....................21 Figure 18: 2.5 Gallon Flush Tank (200426) ..................21 Figure 19: 1 QT Mini Flush Tank (200216) ..................21...
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Page 4: Warranty
Defective in material or workmanship, it is Customer’s responsibility to contact PMC and return the Product to PMC as directed by PMC, freight prepaid. If PMC determines that the Product is Defective and that such Defect is covered by this Warranty, PMC will credit Customer for the reasonable freight charges incurred by Customer in returning the Defective Product to PMC, and PMC (or its authorized agent) will, at PMC’s option, repair or replace... - Page 5 No Rights Implied: Nothing in the sale, lease or rental of any Product by PMC shall be construed to grant any right, interest or license in or under any patent, trademark, copyright, trade secret or other proprietary right or material owned by anyone;...
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Page 6: Safety And Handling
By following the instructions and recommendations contained, you will reduce the potential risk of accidents in the installation, use or maintenance of the PX-7 Gun; you will provide a better opportunity for incident-free operation for a longer time, greater productivity and the possibility of detecting and resolving problems fast and simply. - Page 7 Technical Specifications of this Manual to be exceeded. Always use liquids and solvents that are compatible with the PX-7 Gun. If in doubt, consult PMC Technical Service. When working with the PX-7 Gun, it is recommended that the operator wear suitable clothing and elements of personal protection, including, without limitation, gloves, protective goggles, safety footwear and face masks.
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Page 8: Technical Specifications
Maximum Working Pressure: ..............3,500 psi (245 Bar) Air Pressure: ......................90-125 psi (6.2-8.6 Bar) Weight (Not including Coupling Block): ..............4.3 lbs (2.0 kg) Weight (Including Coupling Block):................ 5.0 lbs (2.3 kg) Figure 1: PX-7 Dimensions Flow Rates of Spray Modules MODULE KIT PRESSURE OUTPUT PATTERN DIA. -
Page 9: General Description
GENERAL DESCRIPTION Figure 2: PX-7 Overview Figure 3: PX-7 Side View... -
Page 10: Operation
OPERATION CAUTION! When working with the PX-7 Gun or performing maintenance work, wear suitable safety protection in accordance with the recommendations and Figure 4: Safety Stop specifications provided by the product suppliers. 1. Set the Safety Stop to the LOCKED position (see Figure 4). -
Page 11: Mixing Module And Pcd Installation
OPERATION Figure 8: Air Inlet Configuration Options 7. Pull the Trigger several times to check for correct movement of the Valving Rod. 8. Ensure the Proportioner and supply system are in the ready position and all processing parameters are satisfied per the chemical manufacturer’s specifications. 9. -
Page 12: Figure 9: Turn Forward Stop Clockwise
OPERATION 7. Screw the Front Packing Retainer (with Front Packing for spray applications) onto the Gun Block until it is hand tight 8. Tighten the Front Packing Retainer with a 5/8” Wrench and release the Trigger 9. If Module has been used previously, skip to step 12, for initial Module install, remove Front Packing Retainer (with Front Packing if applicable) and Module (pull Trigger to release Module) 10. -
Page 13: Valving Rod Adjustment
OPERATION Valving Rod Adjustment CAUTION! Failure to perform Valving Rod Adjustment Procedure properly may cause pattern deformation and damage to Valving rod and/or PCD. 1. Set the Safety Stop to the LOCKED position. 2. Ensure the Manual Valves are CLOSED by turning them to the full clockwise position. CAUTION! Excessive force closing or opening Manual Valves may result in damage to the Manual Valves and/or Coupling Block. - Page 14 OPERATION nut can damage the rear packing and/or cause the Valving Rod to move slowly. 3. If leakage continues, replace Rear Packing.
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Page 15: Air Cap Valve Adjustment
OPERATION Air Cap Valve Adjustment 1. Experiment with spraying. 2. If excessive overspray is observed and/or spray pattern is not satisfactory, decrease air flow to Air Cap by turning Air Cap Adjustment Valve clockwise (see Figure 14). 3. If mixed material builds up on PCD, increase air flow to Air Cap by turning Air Cap Adjustment Valve counter-clockwise. -
Page 16: Maintenance
MAINTENANCE To obtain maximum performance from your PX-7 Gun, it is necessary to periodically perform certain maintenance operations WARNING! Before proceeding with any maintenance work on the PX-7 Gun, trigger the gun to remove internal material pressure, ensure the Manual Valves are CLOSED, ensure the... -
Page 17: Daily Cleaning Procedure
7. Inspect and clean Gun Block, Air Cap, PCD Retainer, PCD, Mixing Module, Screen Screws, Screens, and Check Valves. 8. Use supplied PMC Lubriplate Grease on O-rings and threads. CAUTION! Never use air tool oil to lubricate gun. The use of air tool oil can cause the O-rings to swell and will void the warranty. -
Page 18: Trouble Shooting Guide
TROUBLE SHOOTING GUIDE PROBLEM POSSIBLE CAUSE SOLUTION Lock is in “Locked” position Unlock gun Air supply is not on Turn on air supply Material does not Manual Valves CLOSED OPEN spray when Gun is Mixing Module Inlet Orifices plugged Clean triggered Screens are clogged Clean... -
Page 19: Reference Guide
REFERENCE GUIDE Module Kits MODULE RESIN DRILL NO. OF ITEM KIT ITEM MODULE PCD NO. PORT PORT PORTS DIA. (IN) DIA. (IN) 200561 200547 #1 ROUND 0.0320 0.0320 200563 200549 #3 ROUND 0.0225 0.0180 200565 200551 #5 ROUND 0.0225 0.0280 200572 200558 A3 POUR... -
Page 20: Cylinder/Piston Rebuild Kit
O-RING #009 200435 SPOOL VALVE 200513 O-RING #013 200440 LINER GP-LUBEGREASE GREASE Gun Block Rebuild Kit, PX-7 (200617) PART NUMBER DESCRIPTION SCREEN, PX-7 SCREEN SCREW, R-SIDE, PX-7 SCREEN SCREW, A-SIDE, PX-7 REAR PACKING, PX-7 SCREEN SCREW SEAL CHECK VALVE ASSEMBLY, PX-7... -
Page 21: Screen Screw Kit, A-Side, Px-7
Screen Screw Kit, R-Side, PX-7 (200619) PART NUMBER DESCRIPTION SCREEN, PX-7 SCREEN SCREW, R-SIDE, PX-7 SCREEN SCREW SEAL CHECK VALVE ASSEMBLY, PX-7 PX-7 Spare Parts Kit, #1, PX-7 (200628) PART NUMBER DESCRIPTION SCREEN 80 SEAL; SCREEN SCREW REAR PACKING 200616... -
Page 22: Spare Parts Kit, #3, Px-7
REFERENCE GUIDE PX-7 Spare Parts Kit, #3, PX-7 (200629) PART NUMBER DESCRIPTION SCREEN 80 SEAL; SCREEN SCREW REAR PACKING 200616 TRIGGER REBUILD KIT 200615 CYLINDER/PISTON REBUILD KIT GASKET; COUPLING BLOCK CHECK VALVE ASSY GU-020 MANUAL VALVE ASSY. KT-020 MANUAL VALVE SOFTWARE KIT 200549 MODULE KIT;... -
Page 23: Spare Parts Kit, A3, Px-7
REFERENCE GUIDE PX-7 Spare Parts Kit, A3, PX-7 (200626) PART NUMBER DESCRIPTION SCREEN 60 SEAL; SCREEN SCREW REAR PACKING 200616 TRIGGER REBUILD KIT 200615 CYLINDER/PISTON REBUILD KIT GASKET; COUPLING BLOCK CHECK VALVE ASSY GU-020 MANUAL VALVE ASSY. KT-020 MANUAL VALVE SOFTWARE KIT 200558 MODULE KIT;... -
Page 24: 1/4" Unheated Stainless Steel Hose Assy
MA-43 AIR HOSE, 22” MA-41A REPLACEMENT HOSE, “A” SIDE MA-41R REPLACEMENT HOSE, “R” SIDE Figure 17: Kit MA-41 Shown on PX-7 Flush Tanks Figure 19: 1 QT Mini Flush Tank (200216) Figure 18: 2.5 Gallon Flush Tank (200426) REFER TO FLUSH TANK MANUAL FOR DETAILS... -
Page 25: Parts Identification
PARTS IDENTIFICATION Gun Assembly PARTS LIST ITEM QTY PART NUMBER DESCRIPTION GU-04001 COUPLING BLOCK ASSEMBLY 200468 GUN BLOCK ASSY, PX-7 200470 HANDLE ASSEMBLY, PX-7 200469 AIR PISTON ASSEMBLY 200376 MOUNTING BOLT, BRIDGE, PX-7 FLOOR STOCK SHCS, 8-36 X 0.625, SS... -
Page 26: Gun Block Assembly
PARTS IDENTIFICATION Gun Block Assembly PARTS LIST ITEM PART NUMBER DESCRIPTION 200648 REAR SEAL PACKING KIT, PX-7 (QTY 5) 200392 REAR PACKING RETAINER, PX-7 200456 FRONT PACKING RETAINER, PX-7 200547-200559 MIXING MODULE KIT (W/ DRILLS) (SEE CHART PG. 16) 200397... -
Page 27: Air Cylinder Assembly
ITEM QTY PART NUMBER DESCRIPTION 200362 BRIDGE, PX-7 200718 CYLINDER, PX-7 200377 VALVING ROD, PX-7 200371 FORWARD STOP, CYLINDER, PX-7 200372 NEEDLE VALVE, CYLINDER, PX-7 FLOOR STOCK SHCS, 10-32 X 0.625, SS 200375 GASKET, CYLINDER, PX-7 200459 O-RING, VITON, -018... - Page 28 SPRING, 0.970 O.D. X .063 W.D. X 1.00 LG 200379 SPRING, 1.095 O.D X 0.112 W.D. X 2.00 LG 200380 GASKET, NEEDLE VALVE, PX-7 200382 FORWARD STOP CLAMP SCREW, PX-7 200383 LOCK, BEARING, PX-7 200460 O-RING, VITON, -012 200458 O-RING, VITON, -328...
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Page 29: Handle Assembly
Handle Assembly PARTS LIST ITEM QTY PART NUMBER DESCRIPTION 200435 SPOOL VALVE, PX-7 200436 VALVE RETAINER NUT, PX-7 200647 TRIGGER MOUNTING SCREW KIT, PX-7 200439 SPRING SEAT, PX-7 200440 SPOOL LINER, PX-7 200441 AIR VALVE SPRING 200454 PIPE EXTENSION, PX-7 200464... -
Page 30: Coupling Block Assembly
PARTS IDENTIFICATION Coupling Block Assembly (GU-04001) * *Note: GU-04001 includes TN-04197 which is not used in the PX-7 COUPLING BLOCK ASSEMBLY (GU-04001) ITEM PART NUMBER DESCRIPTION GU-04001-01 COUPLING BLOCK BODY TN-04192 1/8 NPT PIPE PLUG GU-020 MANUAL VALVE ASSY RA-00005A... -
Page 31: Manual Valve Assembly
PARTS IDENTIFICATION Manual Valve Assembly (GU-020) Note: Threads are sealed with Red Loctite® Threadlocker and require heat to loosen PARTS LIST ITEM QTY PART NUMBER DESCRIPTION GU-022 MANUAL VALVE HOUSING GU-021 MANUAL VALVE STEM GU-023 MANUAL VALVE SEAT OR-016 RING, BACKUP, VITON, #7 OR-015 O-RING, AFLAS, -007... -
Page 32: Torque Specifications
PARTS IDENTIFICATION Torque Specifications TORQUE (IN-LB) PART RECOMMENDED DESCRIPTION NUMBER TORQUE 200376 MOUNTING BOLT, BRIDGE, PX-7 80-90 FLOOR STOCK SHCS, 10-32 X 0.625, SS 30-40 200507 PIPE PLUG, 1/16, NPT , STEEL 2-3 T.F.F.T.* 200508 PIPE PLUG, 1/8, NPT , STEEL 2-3 T.F.F.T.*...
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