Advertisement
Table of Contents
- 1 Safety Symbols
- 2 Preparation and Installation
- 3 Principle of Operation
- 4 Specifications
- 5 Troubleshooting
- 6 Testing and Adjusting
- 7 Piston Pump
- 8 Control Group
- 9 Rotating Group
- 10 Drive Shaft Group
- 11 Parts List
- 12 Service Kits
- 13 After Sales Services
- 14 Spare Parts Availability
- Download this manual
OILGEAR TYPE "PVG" PUMPS -
-048/-065/-075 (SERIES F1U)
PURPOSE OF INSTRUCTIONS
These instructions will simplify the installation,
operation, maintenance and troubleshooting of
Oilgear type "PVG" pumps.
REFERENCE MATERIAL
Fluid Recommendations .....................................................................................Bulletin 90000
Contamination Evaluation Guide.........................................................................Bulletin 90004
Filtration Recommendations ...............................................................................Bulletin 90007
Piping Information ...............................................................................................Bulletin 90011
Installation of Vertically Mounted Axial Piston Units ...........................................Bulletin 90014
PVG Open Loop Pumps, Sales........................................................................ Bulletin 47019-I
Pump Control Instructions, Series F1U
"P-1NN" Single Pressure Compensator ............................................................Bulletin 947651
"P-1NN/F" Single Pressure Compensator w/Load Sense .................................Bulletin 947652
"P-1NN/H" Single Pressure Compensator w/H.P. Limiter ....................................Bulletin 947653
"P-1NN/G" Horsepower Limiter w/Load Sense .................................................Bulletin 947654
"P-2" Dual Pressure Compensator....................................................................Bulletin 947655
"P-C" Single Pressure - Soft Start.....................................................................Bulletin 947656
"P-A" or "P-B" Electronic Pressure Compensator .......................Bulletins 947556 and 947657
"P-CNN/H" Single Pressure - Soft Start w/H.P. Limiter ...............Bulletins 947558 and 947658
"P-2NN/H" Dual Pressure Compensator w/H.P. Limiter ..............Bulletins 947559 and 947659
"V-S25" Electro Hydraulic Servo Valve..............................................................Bulletin 947560
"V-M20" Electro Hydraulic Servo Valve .............................................................Bulletin 947561
November 2009
Bulletin 947023
SERVICE INSTRUCTIONS
Figure 1. Typical Oilgear "PVG" Open Loop Pump
THE OILGEAR COMPANY
2300 South 51st Street
Milwaukee, Wisconsin 53219
THE OILGEAR COMPANY
OILG0457
Become familiar with the construction, principle of
operation and characteristics of your pump to help
you attain satisfactory performance, reduce shut-
down and increase the pump's service life. Some
pumps have been modified from those described in
this bulletin and other changes may be made
without notice.
www.oilgear.com
Bulletin 947023
1
Bulletin 947023
Advertisement
Table of Contents
Related Manuals for OilGear PVG 048
Summarization of Contents
Product Information and Controls
Purpose of Instructions
Outlines the objective of the service instructions for Oilgear PVG pumps.
Reference Material
Lists related bulletins and documents for further information.
Fluid Recommendations
Guidelines for selecting and using hydraulic fluids.
Contamination Evaluation Guide
Procedures for assessing fluid cleanliness.
Filtration Recommendations
Best practices for hydraulic system filtration.
Piping Information
Details on hydraulic system piping.
Installation of Vertically Mounted Axial Piston Units
Guidance for installing vertical piston units.
PVG Open Loop Pumps Sales
Sales information for PVG open loop pumps.
Pump Control Instructions Series F1U
Specific instructions for various PVG pump control types.
P-1NN Single Pressure Compensator
Instructions for single pressure compensator control.
P-1NN/F Single Pressure Compensator w/Load Sense
Instructions for pressure compensator with load sense.
P-1NN/H Single Pressure Compensator w/H.P. Limiter
Instructions for pressure compensator with H.P. limiter.
P-1NN/G Horsepower Limiter w/Load Sense
Instructions for horsepower limiter with load sense.
P-2 Dual Pressure Compensator
Instructions for dual pressure compensator control.
P-C Single Pressure - Soft Start
Instructions for single pressure soft start control.
P-A or P-B Electronic Pressure Compensator
Instructions for electronic pressure compensator.
P-CNN/H Single Pressure - Soft Start w/H.P. Limiter
Instructions for soft start compensator with H.P. limiter.
P-2NN/H Dual Pressure Compensator w/H.P. Limiter
Instructions for dual pressure compensator with H.P. limiter.
V-S25 Electro Hydraulic Servo Valve
Instructions for V-S25 electro hydraulic servo valve.
V-M20 Electro Hydraulic Servo Valve
Instructions for V-M20 electro hydraulic servo valve.
Safety First
Safety Symbols
Explanation of signal words and symbols used to indicate hazards.
DANGER Signal Word
Indicates an imminently hazardous situation resulting in death or serious injury.
WARNING Signal Word
Indicates a potentially hazardous situation resulting in death or serious injury.
CAUTION Signal Word
Indicates a potentially hazardous situation resulting in equipment damage or minor injury.
NOTE Information
Emphasizes information or provides additional beneficial details.
Preparation and Installation
Mounting
Guidelines for pump mounting positions and securing.
Piping and Fittings
Requirements for hydraulic system piping and connections.
Power Requirements
Information on motor sizing and power needs.
Drive Specifications
Details on pump rotation, coupling, and alignment.
Filtration
Procedures for maintaining fluid cleanliness and filter replacement.
Fluid Cooling
Considerations for auxiliary cooling of hydraulic fluid.
Air Breather Maintenance
Instructions for inspecting and maintaining the air breather.
Fluid Filling and Starting
Construction Details
Description of the pump's internal components and assembly.
Specifications
Nominal Performance Data
Table detailing pump performance characteristics.
Nominal Dimensions and Weights
Table listing pump physical dimensions and weights.
Testing, Adjusting, and Disassembly
Piston Pump Leak Measurement
Procedure to test for worn piston pump leakage.
Disassembly
General guidelines and safety precautions for pump disassembly.
Component Maintenance and Assembly
Control Group Disassembly
Steps for removing and disassembling the control group.
Valve Plate Group Disassembly
Steps for removing and disassembling the valve plate.
Rotating Group Disassembly
Procedures for disassembling the pump's rotating group.
Drive Shaft Group Disassembly
Steps for removing and disassembling the drive shaft components.
Swashblock Group Disassembly
Steps for removing and disassembling the swashblock.
Component Inspection
Guidelines for inspecting disassembled pump parts.
Control Group Inspection
Inspection of the control pin and its fit.
Valve Plate Inspection
Procedure for inspecting the valve plate surface.
Rotating Group Inspection
Inspection of cylinder barrel, bearing, and piston/shoe assemblies.
Swashblock Group Inspection
Inspection of swashblock, saddle bearings, and mating surfaces.
Assembly Procedures
General guidelines for reassembling the pump.
General Assembly Procedures
Guidelines for reassembling pump components with new seals.
Swashblock Group Assembly
Steps for installing the swashblock and bearings.
Drive Shaft Group Assembly
Steps for installing the drive shaft and retainer.
Rotating Group Assembly
Steps for assembling the rotating group components.
Rotating Group Installation
Procedure for installing the rotating group onto the drive shaft.
Valve Plate Group Installation
Steps for installing the valve plate assembly.
Parts and Service Kits
Parts List
Lists all components with item numbers and descriptions.
Service Kits
Catalog of available service kits for pump maintenance and repair.
After Sales Services
Stay-On-Stream Service
Oilgear's service program for proactive problem prevention.
Service Schools
Training programs for maintenance personnel.
Spare Parts Availability
Information on stocking original factory parts and kits.
Need help?
Do you have a question about the PVG 048 and is the answer not in the manual?
Questions and answers