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MAKING MODERN LIVING POSSIBLE

Service Manual

Transit Mixer Axial Piston Motor

Size 070/084/089

powersolutions.danfoss.com

Summary of Contents for TMM 070

Page 1: ...MAKING MODERN LIVING POSSIBLE Service Manual Transit Mixer Axial Piston Motor Size 070 084 089 powersolutions danfoss com...

Page 2: ...visions Date Changed Rev Apr 2014 Converted to Danfoss layout DITA CMS AC 10 Aug 2012 New TMM image AB 15 Feb 2012 First edition AA Service Manual TMM Transit Mixer Axial Piston Motor Size 070 084 089...

Page 3: ...parameters Overview 12 Output speed 12 System pressure 12 Case pressure 12 Temperature and Viscosity 13 Temperature 13 Viscosity 13 Technical Specifications Technical specification 14 Fluid and Filter...

Page 4: ...f Valve 25 Removal 25 Inspection 25 Reassembly 25 Loop Flushing Valve 26 Removal 26 Inspection 26 Reassembly 26 Anticavitation Valve 26 Removal 26 Inspection 26 Reassembly 27 Speed Sensor PPU 27 Remov...

Page 5: ...or Technical Information 11046759 Hydraulic Fluids and Lubricants Technical Information 520L0463 Design Guideline for Hydraulic Fluid Cleanliness Technical Information 520L0467 Experience with Biodegr...

Page 6: ...Authorized Service Center performs them Symbols used in Danfoss literature Service symbols used in Danfoss literature Symbol description WARNING may result in injury CAUTION may result in damage to p...

Page 7: ...utions before beginning a service procedure Take the following general precautions whenever servicing a hydraulic system Unintended machine movement W Warning Unintended movement of the machine or mec...

Page 8: ...port The spinning pistons are housed in a cylinder which is connected to the output shaft The output torque can be applied to a mechanical function The motors include a loop flushing feature that pro...

Page 9: ...ow shows the function of a hydrostatic transmission using an TMP axial variable displacement pump with electric proportional displacement control EDC and an TMM fixed displacement motor with integrate...

Page 10: ...dition Any application or operating condition which leads to elevated HPRV flow will cause a pressure rise with flow above the valve setting Consult factory for application Pressures marked on HPRV va...

Page 11: ...ef valve designed with a cracking pressure of 5 5 13 and 16 bar Valves are available with several orifice sizes to meet the flushing flow requirements of all system operating conditions Loop flushing...

Page 12: ...ends on speed and normal operating or weighted average pressure that you can only determine from a duty cycle analysis Applied pressure is the chosen application pressure in the order code for the mot...

Page 13: ...C 30 F above the pour point of the hydraulic fluid Minimum temperature relates to the physical properties of component materials Size heat exchangers to keep the fluid within these limits Danfoss reco...

Page 14: ...5 3 222 5 58 8 Torque theoretical N m bar lbf in 1000 psi 1 09 665 1 33 812 1 42 867 Mass moment of inertia of rotating components kg m lbf ft 0 0209 0 0159 0 0209 0 0159 0 0209 0 0159 Weight dry stan...

Page 15: ...leanliness per ISO 4406 recommended minimum 22 18 13 Efficiency charge pressure filtration ratio 15 20 75 10 10 Efficiency suction and return line filtration 35 45 75 10 2 Intermittent Short term t 1...

Page 16: ...uid Change filters with the fluid or when the filter indicator shows it s necessary Replace all fluid lost during filter change Tip For detailed filtration information see Danfoss publication Hydrauli...

Page 17: ...sure port B M12x1 5 Optional 9 16 18UNF 2B Gauge port M1 System pressure port A M12x1 5 Optional 9 16 18UNF 2B Case drain port L2 M22x1 5 Optional 7 8 14UNF 2B Case drain port L1 M22x1 5 Optional 7 8...

Page 18: ...uid during start up Air entrapment in oil under high pressure may damage hydraulic components Check carefully for inlet line leaks Do not run at maximum pressure until system is free of air and fluid...

Page 19: ...ng Hydraulic fluid contains hazardous material Avoid contact with hydraulic fluid Always dispose of used hydraulic fluid according to state and federal enviroN mental regulations System operating hot...

Page 20: ...ormal operating temperature with engine at idle speed Shaft couplings A loose shaft coupling will cause excessive noise Replace loose shaft coupling Shaft aligN ment Misaligned shafts create noise Ali...

Page 21: ...pair unit as required or replace leaky unit Improper motor output speed Improper motor output speed Item Description Action Oil level in reservoir Insufficient hydraulic fluid will reduce motor speed...

Page 22: ...the speed sensor on a motor it must be set at a specific distance from the speed ring on the unit s cylinder To locate the position of the speed sensor on the unit or description see the correspondin...

Page 23: ...Inspection 1 Ensure the work surface is clean and free of contaminants such as dirt and grime 2 Inspect the system for contamination 3 Look at the hydraulic fluid for signs of system contamination oi...

Page 24: ...nd bearing If you find any defect replace damaged component Reassembly 1 Press the shaft seal B090 with seal installation tool into housing 2 Install the remaining washer B100 3 Install the remaining...

Page 25: ...to 38 N m 28 lbf ft Removal Using an 17 mm wrench remove the loop flushing relief valve Discard seal O ring on the plug K030 Inspection Inspect the poppet K010 and the sealing surfaces of the motor fo...

Page 26: ...tion Inspect parts for damage or foreign material Reassembly 1 Install the flushing valve spool in end cap 2 Install the shoulder washers with spring on each end of the spool 3 Install the hex plugs w...

Page 27: ...ousing Inspection Inspect parts for damage or foreign material and sealing surfaces on the adapter plug for nicks or scratches Reassembly 1 Always install a new O ring before installing the sensor 2 R...

Page 28: ...aterial and sealing surfaces on the motor for nicks or scratches Reassembly 1 Always install a new O ring before installing the sensor 2 Install the speed and temperature sensor into the housing 3 Ins...

Page 29: ...on valve groove for screw driver 20 2 N m 14 8 lbf ft G090 High pressure relief valve 12 mm internal hex 80 20 N m 59 lbf ft W055 Speed sensor mounting bolt 5 mm internal hex 8 1 N m 6 lbf ft W030 Sen...

Page 30: ...Service Manual TMM Transit Mixer Axial Piston Motor Size 070 084 089 30 L1211037 Rev AC Apr 2014...

Page 31: ...Service Manual TMM Transit Mixer Axial Piston Motor Size 070 084 089 L1211037 Rev AC Apr 2014 31...

Page 32: ...Denmark Phone 45 7488 2222 Danfoss Power Solutions US Company 2800 East 13th Street Ames IA 50010 USA Phone 1 515 239 6000 Danfoss Power Solutions Shanghai Co Ltd Building 22 No 1000 Jin Hai Rd Jin Qi...

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Danfoss TMM 070, Service Manual

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