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Remove the Load Sense orifice plug (21) with a 2.5
mm  Allan key.

This only applies to units with dynamic orifice (i.e. units
without PVFC spools).

Service Manual

EH Electro Proportional Hydraulic Valve In-line Version

Dismantling

12

L1026660 • Rev BA • Mar 2014

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Содержание EH Series

Страница 1: ...MAKING MODERN LIVING POSSIBLE Service Manual Steering Unit EH Electro Proportional Hydraulic Valve In line Version powersolutions danfoss com...

Страница 2: ...Revisions Date Changed Rev Mar 2014 Converted to Danfoss layout DITA CMS BA Sep 2010 New back cover AB Jun 2010 First edition AA Service Manual EH Electro Proportional Hydraulic Valve In line Version...

Страница 3: ...5 Tools Tools 6 Dismantling Dismantling the EH valve 7 Preassembly Inspection cleaning and replacement 13 Cleaning 13 Inspection and replacement 13 Lubrication 13 Reassembly Reassembly of the EH valv...

Страница 4: ...lve housing 1 1 Main spool 2 1 PVE 3 1 Plug 4 1 50 5 Filter 5 2 O ring 6 3 O ring 7 1 O ring 8 1 Spring 9 1 PR cone 10 1 PR spool 11 1 Plug 12 1 15 2 Pilot cone and spring 13 1 Adjusting screw 14 1 Pr...

Страница 5: ...sing 1 1 Main spool 2 1 PVE 3 1 Plug 4 1 50 5 Filter 5 1 O ring 6 3 O ring 7 1 O ring 8 1 Spring 9 1 PR cone 10 1 PR spool 11 1 Plug 12 1 Pilot cone and spring 13 1 Adjusting screw 14 1 Protection plu...

Страница 6: ...2 5 mm 4 mm 5 mm Calibration Torque wrench Small screw driver Magnetized tool O ring pick or similar 3 mm threaded screw Bench vise Tools are not available from Danfoss Service Manual EH Electro Prop...

Страница 7: ...ner Carefully pries lose the o ring seals 6 7 and 8 and Screen Mesh Filter 5 from PVE Fasten housing in a vice and remove the spool retainer plug 4 using a 27 mm spanner or socket wrench Service Manua...

Страница 8: ...er plug 16 using a 5 mm Allan key This only applies to units with PVFC spool Insert a 3 mm threaded screw into the end of the PVFC spool 18 and use to remove the spool from the housing Service Manual...

Страница 9: ...ith a 5 mm Allan key Remove the Pressure Reducing spool 11 from the cavity Remove the Pressure Reducing poppet 10 with a magnetized tool Service Manual EH Electro Proportional Hydraulic Valve In line...

Страница 10: ...lot Relief Valve plastic protection cover 15 with a small screw driver or O ring pick Then remove the Pilot Pressure relief valve adjusting screw 14 with a 5 mm Allan key Service Manual EH Electro Pro...

Страница 11: ...en installed This only applies to units with dynamic orifice i e units without PVFC spools Pries out the screen mesh filter 20 with a small pick or small screw driver This only applies to units with d...

Страница 12: ...fice plug 21 with a 2 5 mm Allan key This only applies to units with dynamic orifice i e units without PVFC spools Service Manual EH Electro Proportional Hydraulic Valve In line Version Dismantling 12...

Страница 13: ...and replacement Check all parts carefully and make any replacements as necessary All O rings and screen filters must be replaced Lubrication Before assembly lubricate all parts with hydraulic oil Serv...

Страница 14: ...iner hexagonal plug 16 into the housing with a 5 mm Allan key and tighten Remember to lubricate the O ring with light weight grease Make sure that the main directional spool 2 is lubricated with a thi...

Страница 15: ...to lubricate the O ring with a small amount of grease Insert PV poppet spring unit 13 into the housing Then screw in PV pressure adjustment setting screw 14 with 5 mm hexagon socket spanner Make sure...

Страница 16: ...PV adjustment screw 14 is set to the required pressure on a test bench Insert the Pressure reducing spring 9 into the housing Then the PV poppet 10 must be inserted into the spring stem end first Serv...

Страница 17: ...icate the spool first with a thin film of oil Screw in RP retaining plug 12 with 5 mm Allan key Make sure O ring is lubricated If your EH valve has a dynamic orifice function then screw the plug 18 in...

Страница 18: ...ng with 4 mm Allan key Carefully place the screen mesh filter 5 dome first into the PVE housing followed by the O rings 6 7 and 8 Remember to use a light grade grease to keep the O rings in place Serv...

Страница 19: ...Mount the PVE 3 to EH housing with the four cap screws 17 and tighten with 5 mm Allan key Service Manual EH Electro Proportional Hydraulic Valve In line Version Reassembly L1026660 Rev BA Mar 2014 19...

Страница 20: ...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 Qiao Pudo...

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