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EATON

  

Duraforce HMR Conversion Procedures Manual  E-MOPI-TM005-E   July 2012

This manual will provide you with information and procedures 

for general conversions of Eaton® DuraForce™ HMR 

Regulated Variable Displacement Open and Closed Loop 

Hydraulic Motors. Procedures outlined in this manual will 

allow you to  be more flexible with your inventory and better 

service your customers. To ensure accuracy of conversion 

and prevent part loss or damage, certain components 

or subassemblies are disassembled, inspected, and 

reassembled when removed from the motor.

Training 

You have been provided information on the conversion of 

DuraForce products. Proper application of the information 

requires specific training and may require use of specialized 

tooling and equipment. All requests for training must be 

coordinated through your Eaton Account Manager. He can 

also provide you price and availability of any specialized 

tooling. If you choose to proceed with the conversion of the 

DuraForce products absent the necessary training and/or 

these specialized tools, you do so at your risk.
Eaton will accept no claim for warranty resulting from 

deficiencies in the conversion. Please refer to the  

Eaton literature web site for warranty information at  

www.eaton.com/hydraulics/warranty.

Labeling Converted Units 

All units that have been converted must retain the original 

Eaton label and have a second Eaton label placed on the unit.  

This second label at a minimum must state
Converted Eaton Model Code # (Final Eaton model code of 

the converted unit)
Conversion done by (Name of your company)

Conversion Parts

All requests for specific conversion part information should 

be addressed to your Eaton account representative.  

Additional information can be found through your Eaton 

customer connect portal.  All requests or inquiries must be 

accompanied by the complete model and serial number of 

the base unit you want to convert.

Cleanliness

Cleanliness is extremely important when repairing a 

hydrostatic pump or motor. Before disconnecting the lines, 

clean foreign material from exterior of unit. Work in a clean 

area. Clean all metal parts in clean solvent. Blow parts dry 

with air. Don’t wipe parts with cloth or paper towel, because 

lint or other matter could cause damage. Check all mating 

surfaces. Replace any parts that have scratches or burrs that 

could cause leakage. Don’t use coarse grit paper, files or 

grinders on parts.

Environmental Concerns 

Protection of the natural fundamentals of life is one of our 

predominant tasks. We are continuously improving the 

protection of the environment as far as applications are 

concerned. We encourage you to contribute your share to 

comply with this demand. In connection with work to be 

performed, the environmental regulations of the machine 

manufacturer must be respected.

In general:

•  Greases and oils which cannot be used any more have to 

be collected. They are normally a threat to water reserves 

and must be kept away from the environment.

•  Adhere to national and local regulations for waste disposal. 

Seals 

A good conversion policy is to replace all old seals with new 

seals whenever units are disassembled. This avoids potential 

damage during seal removal.  Lubricate seals with petroleum 

jelly. Use only clean and recommended oil when assembling 

unit. Information on recommended filters and fluids can be 

found in the Operational Parameters section.

Torque

All torque specifications are for lubricated threads. Bolts for 

gasketed surfaces should be checked for proper torque.

Introduction

Exchanging Controls

•  6mm Allen wrench
•  Torque wrench capable of 

setting 32 N-m (24 ft-lb)

Exchanging Response 

Orifices

•  3 mm Allen Wrench.
•  6 mm Allen wrench.
•  Torque wrench capable of  

32 N-m (24 ft-lb).

•  Petroleum Jelly or clean 

grease.

Maximum & Minimum 

Displacement Adjustments

•  6mm Allen wrench
• 19mm closed-end wrench

Adjusting Crossover  

Relief

•  5mm Allen wrench
• 17mm closed-end wrench
•  0-7000 psi pressure gauge or 

transducer

Tools Required (continued)

Содержание DuraForce HMR Series

Страница 1: ...Eaton DuraForce HMR Conversion Procedures...

Страница 2: ...Orifices Set Up and Procedure 15 Maximum Displacement Adjustment Set up and Procedure 17 Minimum Displacement Adjustment Set up and Procedure 18 Adjust Crossover Relief Set up and Procedure 19 Operati...

Страница 3: ...base unit you want to convert Cleanliness Cleanliness is extremely important when repairing a hydrostatic pump or motor Before disconnecting the lines clean foreign material from exterior of unit Wor...

Страница 4: ...l l l l 16 Control Solenoids 0 not applicable l l l l l l A AMP 12V l l l l l l B AMP 24 V l l l l l l C DIN 12 V D DIN 24 V E Deutsch 12V F Deutsch 24V 17 Response Orifices A 0 6 mm E 1 0 mm l l l l...

Страница 5: ...aforce HMR Conversion Procedures Manual E MOPI TM005 E July 2012 Blocking the Case Flushing Feature Set Up Important This procedure must be performed in a clean environment using clean Parts Tools and...

Страница 6: ...please move to Procedure to Disable the Purge Valve section near the end of this document 1 Remove the spring with the needle nose pliers The safest way to remove spools springs etc like this is with...

Страница 7: ...with Standard or Optimized Shuttle Valve Assemblies For unit with Dampened Shuttle Valve Assembly please move to Procedure to Disable the Purge Valve section near the end of this document Reinstall th...

Страница 8: ...dure to Disable the Purge Valve Remove the purge valve Important This procedure applies to HMR Motors with Standard Optimized or Dampened Shuttle Valve Assemblies 1 Replace the existing purge valve wi...

Страница 9: ...Loop Purge Valve with the 13mm wrench Install the Open Loop Purge Valve and tighten it with the 17mm wrench Torque it to 15 N m 11 ft lb Procedure to Exchange an Open Loop Purge Valve with a Closed L...

Страница 10: ...hough these locations may differ from one unit type to the other the internal parts are the same This procedure must be performed in a clean environment using clean Parts Tools and Lubricants Importan...

Страница 11: ...the Loctite used to keep the shuttle body in place heat the area directly above the shuttle assembly as shown here 3 Remove the first set of shuttle spool spring and shim combination 2 Use the specia...

Страница 12: ...the rear head and torque it using the special Eaton tool refer to the torque chart at the bottom of this page Note An HMV motor is used to show the necessary steps throughout this document The same p...

Страница 13: ...ing DOR block with the 3mm Allen wrench Keep the S H C S with the DOR being removed Do NOT reused them with the new DOR block Remove the existing DOR block from the motor control Make sure that the O...

Страница 14: ...a clean environment using clean Parts Tools and Lubricants Remove the existing motor control by removing the two S H C S with the 6mm Allen wrench Keep the two S H C S for reuse Make sure to remove t...

Страница 15: ...Lubricants Exchanging Response Orifices on HMR Motors Set Up and Procedure Remove the four bolts that secure the control block as shown here 1 Remove the control block as shown here 2 Note Often the...

Страница 16: ...into the control block as shown here 5 Position the control block on the motors rear head as shown here 6 Exchanging Response Orifices on HMR Motors continued Set Up and Procedure Important Inspect al...

Страница 17: ...ustment Depending on the specific configuration of your motor it may or may not have a maximum displacement adjustment For those HMR motors without a maximum displacement adjustment please ignore this...

Страница 18: ...ntrol pressure is supplied into the displacement override port thus forcing the HMR to maximum displacement To Adjust the Motor Minimum Displacement a Hold the adjustment stud stationary with the 6mm...

Страница 19: ...her reaches this maximum limit stop all testing until the temperature cools off While supplying flow to Workport A read the pressure on the gauge This is the setting for the Workport A Relief Valve To...

Страница 20: ...The required purity of the hydraulic oil must be ensured during filling or topping up When drums canisters or large capacity tanks are used the oil generally has to be filtered We recommend the implem...

Страница 21: ...C 20 to 90 Working viscosity range mm s cSt 10 to 80 Optimum working viscosity mm s cSt 15 to 30 Max viscosity short time start up mm s cSt 1000 Permitted Pressure Fluids Recommended Viscosity Ranges...

Страница 22: ...dard p 9 Part Description Qty 0009630107 O ring 1 6003451008 Valve Sleeve 1 9516003252 Ball 1 0009211007 Spring 1 9289003006 Shim 0 5mm as req d 9289003003 Shim 0 1mm as req d 6003435512 Screw Plug 1...

Страница 23: ...rifice 0 9mm 2 0009037045 Orifice 1 0mm 2 0009037050 Orifice 1 2mm 2 0009037046 Orifice 1 5mm 2 0009037511 Orifice 1 8mm 2 0009037510 Orifice 2 1mm 2 O rings for Controls p 14 Part Description Qty 000...

Страница 24: ...p Europe Route de la Longeraie 7 1110 Morges Switzerland Tel 41 0 21 811 4600 Fax 41 0 21 811 4601 Eaton Hydraulics Group Asia Pacific Eaton Building No 7 Lane 280 Linhong Road Changning District Shan...

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