Eaton DuraForce HMR Series User Manual
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Eaton DuraForce HMR Series User Manual

Regulated variable displacement open and closed loop hydraulic motors
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Eaton
DuraForce™
HMR Conversion Procedures

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Summary of Contents for Eaton DuraForce HMR Series

  • Page 1 ® Eaton DuraForce™ HMR Conversion Procedures...

  • Page 2: Table Of Contents

    • Torque wrench capable of 100 • Torque wrench capable of ft-lb (136 N-m) setting 122 N-m (90 ft-lb) • Needle-nose pliers • Blocked Purge Valve • Rubber Mallet (optional) • Disabled Shuttle Spool EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 3: Introduction

    Seals All units that have been converted must retain the original Eaton label and have a second Eaton label placed on the unit. A good conversion policy is to replace all old seals with new This second label at a minimum must state seals whenever units are disassembled.

  • Page 4: Model Code

    Model Code The following 36 digit coding system has been developed to identify preferred feature options for the Eaton Closed or Open Loop Hydraulic Motor. Use this code to specify a motor with the desired features. All 36-digits of the code...

  • Page 5: Block The Case Flushing Feature

    Blocking the Case Flushing Feature Important This procedure must Set Up be performed in a clean environment using clean Parts, Tools and Lubricants EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 6: Procedure To Disable The Shuttle Valve Assembly

    Remove the spring with the needle-nose pliers. The safest way to remove spools, springs etc. like this is with a pencil magnet Replace the Original Shuttle Spool with the Disabled Shuttle Spool EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...
  • Page 7 Reinstall the Washer onto the Disabled Shuttle Spool. Reinstall the spring. Reinstall the M22 Plug. Torque the M22 Plug to Reinstall the Washer/Disabled Shuttle Spool 122 N-m (90 ft-lb). subassembly back into the Shuttle Body. EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 8: Procedure To Disable The Purge Valve

    Remove the purge valve. Install the blocked purge valve back into the motor and torque it to 15 N-m (11 ft-lb) Replace the existing purge valve with the blocked purge valve EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 9: Exchange Purge Valves

    Install the Open Loop Purge Valve and tighten it with Install the Closed Loop Purge Valve and tighten it with the 17mm wrench. Torque it to 15 N-m (11 ft-lb). the 13mm wrench. Torque it to 15 N-m (11 ft-lb). EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 10: Exchange Shuttle Valve Assemblies

    Parts, Tools and Lubricants. HMR75 HMF75 HMV75 Important The following image illustrates the different types of shuttle valve assemblies used on Eaton Hydraulics H** motors: EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 11: Disassembly Procedure

    New Tool 600.880.0001 There are three types of shuttle valve assemblies used on Eaton units and there are two different types of tools used to remove the shuttle bodies. A better look at the shuttle valve assembly is shown below.

  • Page 12: Assembly Procedure

    Insert the whole set into the shuttle cavity on the rear head and torque it using the special Eaton tool (refer to the torque chart at the bottom of this page) Insert the second set of shuttle spool/shim/spring into the shuttle body.

  • Page 13: Exchange Displacement Override Blocks

    Allen wrench and torque each one to: the DOR block. • 3.8 N-m (2.8 ft-lb) [For the Low-Pressure Hydraulic, High-Pressure Hydraulic, and Pneumatic DOR] • 2.7 N-m (2.0 ft-lb) [For the Electric DOR]. EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 14: Exchange Controls

    Make sure to remove the five O-Rings with the existing control. Prior to installing the new motor control, verify that the five O-Rings are in good condition (i.e not damaged) and are properly positioned in the O-Ring grooves. EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 15: Exchanging Response Orifices

    Often, the o-rings from the bottom of the control block remain on the motor’s rear head. Make sure that all o-rings are removed from the rear head and installed on the control block. EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...
  • Page 16 Important Make sure to orient the control correctly so that all ports align with each other. Install the mounting bolts and torque them to 32 N-m (24 ft-lb). EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 17: Maximum Displacement Adjustment

    6mm Allen wrench and tighten the seal nut displacement. with the 19mm wrench. The proper torque for the seal nut is 60 N-m (44 ft-lb). EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 18: Minimum Displacement Adjustment

    6mm Allen wrench and tighten the seal nut with the 19mm wrench. The proper torque for the seal nut is 60 N-m (44 ft-lb). EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 19: Set Up And Procedure

    You should monitor the temperature of the hydraulic oil and HMR motor to ensure that they do NOT exceed 194°F (90°C). If the temperature of either reaches this maximum limit, stop all testing until the temperature cools off. EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 20: Operational Parameters

    International Standard Code number according to ISO 4406 purity class according to SAE AS 4059 18/16/13 corresponds to 8A/7B/7C 20/18/15 9A/8B/8C EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...
  • Page 21 Approx. 30 to 40°C (86 to 104°F) Approx. 40 to 60°C (104 to 140°F) Approx. 60 to 80°C (140 to 176°F) 46 or 68 Further information regarding installation can be found in the operating instructions. EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...

  • Page 22: Part Numbers Listing

    Shim, 0.1mm as req'd 6003435512 Screw Plug 6003435512 Screw Plug 6003454000 Orifice Shuttle Valves p. 10 Part # Description Standard 6003405642 Standard Shuttle Dampened 6003405620 Dampened Shuttle Optimized 6003405651 Optimized Shuttle EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...
  • Page 23 High Pressure, ISO Port 0009037045 Orifice, 1.0mm 5863400714 Through Brake Valve 0009037050 Orifice, 1.2mm 5863400734 Electrically Switched, 12V DIN 0009037046 Orifice, 1.5mm 5863400735 Electrically Switched, 12V AMP 0009037511 Orifice, 1.8mm 0009037510 Orifice, 2.1mm EATON Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012...
  • Page 24 Tel: +41 (0) 21 811 4600 200335 China Fax: 952-294-7722 Fax: +41 (0) 21 811 4601 Tel: (+86 21) 5200 0099 www.eaton.com/hydraulics Fax: (+86 21) 2230 7240 © 2012 Eaton Corporation All Rights Reserved Printed in USA Document No. E-MOPI-TM005-E July 2012...

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