Table of Contents
Advertisement
Quick Links
PVV-440 - A2 SERIES PUMP
PURPOSE OF INSTRUCTIONS
These instructions will simplify the installation,
operation, maintenance and troubleshooting of
Oilgear type PVV-440 A2 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
PVV Open Loop Pumps Sales.................................................................................Bulletin 47028-E
Oilgear Reference Drawings for PVV-540/440 A2 ................................................................. 518260
Pump Control Instructions
VM Control, PVV-440 ........................................................................................ Data Sheet M47690
Basic Pump Without Control Installation ........................................................... Data Sheet M47683
Issued: February 2001
Bulletin 947031
SERVICE INSTRUCTIONS
Oilgear "PVV-440 A2 Series" Open Loop Pump
THE OILGEAR COMPANY
2300 South 51st Street
THE OILGEAR COMPANY
Milwaukee, Wisconsin 53219
OILGG0514
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 that described in
this bulletin and other changes may be made
without notice.
Bulletin 947031
Bulletin 947031
1
Advertisement
Table of Contents
Related Manuals for OilGear PVV-440-A2 Series
Summary of Contents for OilGear PVV-440-A2 Series
- Page 1 Piping Information ....................... Bulletin 90011 Installation of Vertically Mounted Axial Piston Units ........... Bulletin 90014 PVV Open Loop Pumps Sales.................Bulletin 47028-E Oilgear Reference Drawings for PVV-540/440 A2 ..............518260 Pump Control Instructions VM Control, PVV-440 ..................Data Sheet M47690 Basic Pump Without Control Installation ............Data Sheet M47683...
-
Page 2: Safety Symbols
Or visit our website: www.oilgear.com. hydraulic leaks, please contact Oilgear Please contact us if you have any prior to servicing. questions regarding the information in this instruction bulletin. © 2001 THE OILGEAR COMPANY - ALL RIGHTS RESERVED THE OILGEAR COMPANY Bulletin 947031... - Page 3 Oilgear’s installation guidelines service. Please contact Oilgear if you recommendations. require assistance or have questions. WARNING WARNING Hydraulic hoses have the SAE ratings All hydraulic pressure must be relieved marked on the hose to assist you in from the hydraulic system prior to removing selecting the correct hose.
- Page 4 Serious injury can adjustments. result without proper protective gear. WARNING WARNING An Oilgear pump must not be modified in Make sure to keep hands and feet and without authorization from other parts of your body clear of revolving Oilgear.
-
Page 5: Preparation And Installation
CAUTION PIPING AND FITTINGS DO NOT start or stop unit under load unless system is approved by Oilgear. It Refer to the referenced Oilgear Piping Information may be necessary to provide delivery Bulletin 90011 and individual circuit diagram before bypass in some circuits. - Page 6 Fluid Recommendations and Oilgear Contamination Evaluation Guide bulletin. Fire-resistant fluids and phosphate ester Bulletin 90004. Oilgear recommends use of a filter fluids can be used in accordance with fluid in an auxiliary (pilot) pump circuit. Replace filter manufacturer’s recommendations.
-
Page 7: Specifications
22.8 577,9 22.5 647,7 15.5 393,7 Consult Factory 4.000 SAE (315 mm B.C.) For detailed dimensions, contact your Oilgear Representative. Refer to installation drawings for more detailed dimensions and port configurations. Table 4. Nominal Dimensions and Weights Without Controls Bulletin 947031... -
Page 8: Troubleshooting
Worn or grooved cylinder wear plate (103) and/or port plate (1). Inspect components. Replace. Faulty output circuit components (continuous blowing relief valves or slip through valves, cylinders, etc.). Insufficient cooling provision or clogged coolers. Inspect for obstruction. THE OILGEAR COMPANY Bulletin 947031... -
Page 9: Principle Of Operation
(suction) port B, each piston moves outward, drawing fluid from port B into the piston bore until its outermost stroke (D) is reached. At this point, the piston bore passes from the lower crescent to the upper crescent port. Bulletin 947031 THE OILGEAR COMPANY... - Page 10 A. In this case, the linear stroke of the control piston and the angle of the swashblock is one half of the former (position A) and pump delivery is one half of the former delivery. THE OILGEAR COMPANY Bulletin 947031...
- Page 11 There is no fluid being displaced from the piston bores to the crescents in port plate to the valve plate and no delivery from pump ports. Bulletin 947031 THE OILGEAR COMPANY...
-
Page 12: Control Group
(503) is removed from. pressure from the system before servicing or testing. Be sure provisions have been made so the case drain line can be disconnected from unit without causing the line to drain (siphon) the reservoir. THE OILGEAR COMPANY Bulletin 947031... -
Page 13: Driveshaft Group
Allen wrench. 3. Pry wear plate (202) away from swashblock as far as possible. 4. Loosen and remove screws (014) that fasten the front and middle housing. 5. Carefully separate the front and rear housings. Bulletin 947031 THE OILGEAR COMPANY... - Page 14 (1) from valve plate (401). Do not remove rear shaft bearing (403) unless replacement is necessary. If removed, note the direction the slot faces. Remove the o-rings (019) and (407) from housing and valve plate. THE OILGEAR COMPANY Bulletin 947031...
- Page 15 Inspect cylinder barrel (101), piston bores and the system or the Oilgear pump. Wear correct face which mates with the port plate (1) and protective gear, safety glasses, gloves and cylinder wear plate (103) for wear and scoring.
- Page 16 5. Install new o-ring (019) in groove on back side of pump middle housing (002). 6. Remove o-ring (407) in housing and discard; reinstall new o-ring. THE OILGEAR COMPANY Bulletin 947031...
- Page 17 9. Place eyebolts in swashblock wear plate (202) and use a hoist to lift the assembly from the blocks. Make sure none of the pistons are binding in their shoes and that they swivel freely. Bulletin 947031 THE OILGEAR COMPANY...
- Page 18 (302) from seating gasket must be positioned around o-ring completely in its bore. seal (011) , not on top of it. 4. Place shaft retainer plate (303) over front driveshaft bearing (302). THE OILGEAR COMPANY Bulletin 947031...
- Page 19 SAE #6 PLUG 200 in•lb (23 N•m) SCR, SHC, M10 X 16 MM LG. 35 ft•lb (47,5 N•m) SCR, SHC 600 ft•lb (187 N•m) SCR, SHC, M16 X 55 MM LG. 138 ft•lb (187 N•m) Bulletin 947031 THE OILGEAR COMPANY...
- Page 20 ROTATION CONVERSIONS Base Pump w/o Control Refer to the Reference Material and Oilgear Refer to 518260, Sheets 1 through 4. The following Reference Drawings 518260 when converting parts are necessary for conversion, one of each rotation. are required: • Port Plate (1) •...
- Page 21 PARTS LIST FOR PVV-440 Parts used in these assemblies are per Oilgear specifications. Use only Oilgear parts to ensure compatibility with assembly requirements. When ordering replacement parts, be sure to include pump type and serial number, bulletin number and item number. Specify type of hydraulic fluid to assure seal and packing compatibility.
- Page 22 Gland, Volume Stop Nut, Lock Seal, O-ring Seal, O-ring Ring, Backup STROKE INDICATOR ASSEMBLY Bushing, Indicator Pin Pin, Stroke Indicator Arrow, Indicator Packing, Block “V” Seal, O-ring Screw, Socket Head Cap Washer, Delrin Ring, Retainer THE OILGEAR COMPANY Bulletin 947031...
-
Page 23: Service Kits
Shoe Retainer & Hold-Down Ring with Screws K515882-000 104, 203, 209(9) Metric K515882-300 Hydrodynamic Bearing Kit K318912 004, 025(2) Housing Gasket Kit K407772 003, 011(3) Port Plate Kits Left-hand, Metric K723635-300 1, 404(2) Right-hand, Metric K723635-301 Bulletin 947031 THE OILGEAR COMPANY... - Page 24 003, 007, 009(2), 010(8), 011(3), 012(2), 013, 018(3), 019, 207, Viton Seals K518260-A21 407, 505(6), 704(2), 705(2), 706(2), 804, 805 Shaft Seal Viton Seals 250486-001 Driveshaft Bearing 250487 Tailshaft Bearing 250797 Nameplate & Screws K312665-001 020(8), 023 THE OILGEAR COMPANY Bulletin 947031...
- Page 25 Figure 6. Exploded Parts Drawing for PVV-440 A2 w/Rear-Ported Valve Plate (518260 sheet 2) Bulletin 947031 THE OILGEAR COMPANY...
- Page 26 Figure 7. Exploded Parts Drawing for PVV-440 A2 (518260 sheet 1) THE OILGEAR COMPANY Bulletin 947031...
- Page 27 NOTES ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ Bulletin 947031 THE OILGEAR COMPANY...
-
Page 28: After Sales Services
AFTER SALES SERVICES SERVICE SCHOOLS Oilgear conducts training to train your maintenance At Oilgear we build products to last. It is the nature personnel. “General” hydraulic electronic of this type of machinery to require proper training is conducted at our Milwaukee, Wisconsin maintenance regardless of the care we put into plant on a regular basis.
Need help?
Do you have a question about the PVV-440-A2 Series and is the answer not in the manual?
Questions and answers