Danfoss EH Service guide
MAKING MODERN LIVING POSSIBLE
Service Manual
Steering Unit
EH Electro Proportional
Hydraulic Valve In-line Version
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Service Manual EH Electro Proportional Hydraulic Valve In-line Version
Revision History Table of Revisions
Date Changed Rev
Mar 2014 Converted to Danfoss layout - DITA CMS BA
Sep 2010 New back cover AB
Jun 2010 First edition AA
2 L1026660 • Rev BA • Mar 2014
Service Manual EH Electro Proportional Hydraulic Valve In-line Version
Contents
Exploded view
Exploded view EH valve with dynamic orifice (no PVFC Spool)...................................................................................... 4
Exploded viev EH Valve with PVFC Spool................................................................................................................................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 valve........................................................................................................................................................14
L1026660 • Rev BA • Mar 2014 3
17
3
5
6
7
8
6
13
1
16
2
15
14
11
10
9
12
4
5
16
18
P301 292
Service Manual EH Electro Proportional Hydraulic Valve In-line Version
Exploded view
Exploded view EH valve with dynamic orifice (no PVFC Spool)
Spare parts list
Spare parts Item Number per unit Torque setting Nm
Valve 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 Protection plug 15 1 Plug 16 2 15 ± 2
Screw 17 4 8 ± 0.5
Throttle screw 18 1 1 ± 0.1
4 L1026660 • Rev BA • Mar 2014
18
15
14
13
17
12
11
10
8
9
3
7
8
5
6
16
2
4
1
P301 293
Service Manual EH Electro Proportional Hydraulic Valve In-line Version
Exploded view
Exploded viev EH Valve with PVFC Spool
Spare parts list
Parts Item Number per unit Torque setting Nm
Valve housing 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 plug 15 1 Plug 16 1 15 ± 3
Screw 17 4 8 ± 0.5
PVFC spool 18 1 -
L1026660 • Rev BA • Mar 2014 5
Service Manual EH Electro Proportional Hydraulic Valve In-line Version
Tools
Tools
Open-ended spanner (or socket wrench) 27 mm
•
Hexagonal socket spanners 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
6 L1026660 • Rev BA • Mar 2014
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