Parker 716 Series Service Manual
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Parker 716 Series Service Manual

Low speed high torque hydraulic motors
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Service Manual SM1532
Parker Motors
Effective:
January 1, 1996
Low Speed
High Torque
Hydraulic Motors
716 Series

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Summary of Contents for Parker 716 Series

  • Page 1 Service Manual SM1532 Parker Motors Effective: January 1, 1996 Low Speed High Torque Hydraulic Motors 716 Series...

  • Page 2: Definitions

    The products described herein, including without limitation, product features, specifications, designs, availability, and pricing are subject to change by Parker Hannifin Corp. and its subsid- iaries at any time without notice. Parker Hannifin Corp.
  • Page 4 Parker Hannifin Corporation Hydraulic Pump/Motor Division 2745 Snapps Ferry Road Greeneville, TN 37745 USA Tel. (423) 639-8151 FAX (423) 787-2418 DG 6/96 7500...

  • Page 5: Table Of Contents

    Assembly ....................16-21 Solenoid Assembly ..................22 Final Checks ....................23 Section 3 Maintenence Hydraulic Fluids ....................23 Filtration, Operating Temperature ..............23 Tips for Maintaining the system ..............24 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 6: Introduction

    Service part number charts display exploded view item numbers and part numbers. Obtain service parts from the Original Equipment Manufacturer or your local Parker distributor. We welcome suggestions to make this manual clearer or more complete. If you are stuck, contact Parker Hannifin Corp.

  • Page 7: Troubleshooting Guide

    Fluid: Viscosity at the maximum temperature must exceed 50 ssu. • Filtration: A Beta 25 ratio of at least 2. WARNING: Wear eye protection and comply with OSHA and other maximum air pressure requirements. Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 8: Troubleshooting Checklist

    5HVHW UHOLHI ORRN IRU FRQWDPLQDWLRQ RU QRW FORVLQJ FRPSOHWHO\ RU UHSODFH CAUTION: Seals in the system will shrink, harden or crack if fluid temperatures exceed 180°F (82.2°C), resulting in loss of ability to seal. Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 9: Tools And Material Required For Servicing & Seal Kit Components

    Service Tools & Materials, Seal Kit Tools and Materials Required to Service the 716 Series • Clean, petroleum-based solvent • Emery paper • Vise with soft jaws • Air pressure source • Screwdriver • Tape • Breaker bar or impact wrench •...

  • Page 10: Service Parts List

    716 Series Service Parts List Item # Part Number Description See Below Bolts M110C-6 4 Dowel End Cover (standard) 1046 O-Rings See Below Set, Rear (2904-X) 1660 Clip See Below Shaft 1865 Commutator Plate 1021 Check Ball PA-2534 (7/8-14 O-Ring, Pilot Act.)

  • Page 11: Exploded Assembly View

    Locating Ring w/Rollers Outer Inner w/Rolls Valve Plate Item Description Bolt, Hex Front Bearing Housing/Flange O-Ring Shaft Commutator Plate Check Ball Center Block Plug, Spool Port Seal, Dust Seal, High Pressure Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 12 716 Series Exploded View - Typical Cover End Item Description Bolt, Hex Cover O-Ring Clip Shaft Commutator Plate Check Ball Center Block Plug, Spool Port Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 13 716 Series Exploded View - Typical Optional Solenoid Item Description Plug, Spool Port Spring, Valve Valve Check Ball, Solenoid Block O-Ring Solenoid Solenoid Block Solenoid Block Solenoid Bottom View Hex Bolt Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 14: Disassembly & Inspection

    • Discard all seals and seal rings, as they are removed from the motor. Replace all seals, seal rings and any damaged or worn parts with genuine Ross or OEM approved service parts. Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 15 The rollers & check balls will fall out so be ready to catch them to prevent damage and loss. Note: The check balls may fall into the bolt holes or into the commutator ports. Figure D4 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 16 Remove commutator plate assembly (7) and seal (3). SEE FIGURE D8. Figure D8 Turn motor assembly upside down and clamp center block (9) in vise. SEE FIGURE D9. Figure D9 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 17 2 snap ring pieces (5). SEE FIGURE D13. Note: With the snap ring removed the shaft will fall out of the motor unless, you maintain a grip on the it. Figure D13 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 18 SEE FIGURE D15. Caution: Do not scratch the flange seal area that would possibly create a leak path. Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 19: Disassembly & Inspection

    Replace parts as needed. If your motor has a thru shaft option and the seals were leaking, the entire cover must be replaced. Thru covers contain no servicable parts. Figure D19 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 20: Assembly

    NOTE: Individual seals and seal rings as well as a complete seal kit are available. The parts should be available through most OEM parts distributors or Parker distributors. (Contact your local dealer for availability.) NOTE: Unless otherwise indicated, do not oil or grease parts before assembly.
  • Page 21 SEE FIGURES A05 Figure A04 Figure A05 Place the square cut seal (3) in the commutator plate (7) seal gland. SEE FIGURE A06. Figure A06 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 22 Figure A09 13. Place o-ring (3) in cover (2) seal groove. Assembly grease can be used to hold the o-ring in place during assembly. FIGURE A10. Figure A10 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 23 17. Place the commutator plate on the center block with the square ring groove facing up. Align the 8 bolt holes with the 8 tapped holes in the center block. SEE FIGURE A14 Figure A14 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...
  • Page 24 Align the 8 bolt holes with the commutator holes. Place the rollers in position alternating long and short to match up with the 4 dowels in the front bearing housing/flange (10). SEE FIGURE Figure A18 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 25: Assembly

    A. Increase torque diagonally 5 foot lbs on each bolt. B. Rotate the shaft by hand through several rotations. C. Repeat steps A & B until torque is 30 foot lbs. SEE FIGURE A20 Figure A20 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 26: Solenoid Assembly

    15 ft lbs. SEE FIGURE A23 The assembly of the Motor is now complete except for keys, nuts, etc. at installation if applicable. See final checks. Figure A23 Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 27: Final Checks

    Then change the filters before returning the machine to service. Filtration • Recommended filtration: Beta 25 ratio of at least 2. Oil Temperature • Maximum operating temperature 180º Parker Hannifin Corp. Hydraulic Pump/Motor Div. Greeneville, TN 37745 USA...

  • Page 28: Tips For Maintaining The System

    Parker Hannifin Corp. extends close technical cooperation and assistance. If problems occur which you cannot solve, please contact our Parker Technical Service Representative or local Parker Distributor. See the back cover of this manual for our address, phone and fax numbers.

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