Sauer Danfoss LPV Closed Circuit Axial Piston Pumps Service Manual 917452 – PDF DOWNLOAD

Sauer Danfoss LPV Closed Circuit Axial Piston Pumps Service Manual 917452 – PDF DOWNLOAD

FILE DETAILS:

Sauer Danfoss LPV Closed Circuit Axial Piston Pumps Service Manual 917452 – PDF DOWNLOAD

Language : English
Pages : 36
Downloadable : Yes
File Type : PDF
Size: 2.50 MB

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Sauer Danfoss LPV Closed Circuit Axial Piston Pumps Service Manual 917452 – PDF DOWNLOAD

Introduction:

• This manual includes information for the installation, maintenance, and minor repair
  of the LPV pump. It includes a description of the unit and its individual components,
  troubleshooting information, and minor repair procedures.
• Performing minor repairs requires the unit to be removed from the vehicle/machine.
  Thoroughly clean the unit before beginning maintenance or repair activities. Since dirt
  and contamination are the greatest enemies of any type of hydraulic equipment, follow
  cleanliness requirements strictly. This is especially important when changing the system
  filter and when removing hoses or plumbing.
• A worldwide network of Sauer-Danfoss Global Service Partners is available for major
  repairs. Sauer-Danfoss trains Global Service Partners and certifies them on a regular basis.

TABLE OF CONTENTS:

Sauer Danfoss LPV Closed Circuit Axial Piston Pumps Service Manual 917452 – PDF DOWNLOAD

Introduction
Operation
Technical
specifications
Fluid and filter
recommendations
Startup procedures
Pressure
measurements
Overview 5
Warranty 5
General instructions 5
Safety precautions 6
Unintended machine movement 6
Flammable cleaning solvents 6
Fluid under pressure 6
Personal safety 6
Symbols used in Sauer-Danfoss literature 7
Design 8
Direct displacement drive system 9
LPV Pump schematic diagram 9
HPRV (High pressure relief valve) 10
Bypass function 10
CPRV (Charge pressure relief valve) 10
Loop flushing valve 11
Neutral return mechanism 11
Specifications 12
Fluid and filter recommendations 14
Hazardous material 14
General 15
Start-up procedure 15
Required tools 17
Port locations and gauge installation 17
Troubleshooting Overview 18
System operating hot 18
Transmission operates normally in one direction only 18
System noise or vibration 18
System will not operate in either direction 19
Sluggish system response 19
Adjustments Pump adjustment 20
Standard procedures 20
Charge pressure relief valve adjustments 21
System check and hprv 22
Loop flushing valve 22
Checking for proper HPRV valve operation 22
Neutral return mechanism 23
11004904 • Rev AA • Jan 2007
LPV Closed Circuit Axial Piston Pumps
Service Manual
Contents
Minor repair
Torque chart
Input shaft and seal 24
Shaft seal removal 24
Shaft removal 24
Shaft inspection 25
Bearing inspection 25
Reassembly 26
Trunnion Seal 27
Removal 27
Inspection 27
Reassembly 27
High pressure relief valves 28
Removal 28
Inspection 28
Reassembly 28
Charge pressure relief valve 29
Removal 29
Inspection 29
Reassembly 29
Loop flushing valve 30
Removal 30
Inspection 30
Reassembly 30
Bypass valve 31
Removal 31
Inspection 31
Reassembly 31
Coupling 31
Removal 31
Inspection 31
Reassembly 31
Fasteners and plugs 32
Fastener size and torque chart 32
Plug size and torque chart 32