THE OILGEAR COMPANY
905 South Downing Street
Fremont, NE 68025 USA
www.oilgear.com
Issued: May 2019
PUMP SERVICE MANUAL
Bulletin 948034A
Bulletin 948034A
Figure 1. Typical Oilgear “PVG” Open Loop Pump
PURPOSE OF INSTRUCTIONS
These instructions will simplify the installation,
operation, maintenance and troubleshooting of
Oilgear type “PVG” pumps.
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.
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-K
Pump Control Instructions, Series A1
“P-1NN” Single Pressure Compensator ................................................................................................ Bulletin 948675
“P-1NN/F” Single Pressure Compensator w/Load Sense ..................................................................... Bulletin 948676
“P-1NN/H” Single Pressure Compensator w/H.P. Limiter ..................................................................... Bulletin 948677
“P-1NN/G” Horsepower Limiter w/Load Sense .................................................................................... Bulletin 948678
“P-1NN/K” Single Pressure w/Load Sense, Minimum Standby ............................................................ Bulletin 948683
“P-1NN/L” Single Pressure w/HP Limiter & Load Sense, Minimum Standby ....................................... Bulletin 948684
“P-2” Dual Pressure Compensator ...................................................................................................... Bulletin 948679
“P-C & P-K” Single Pressure - Soft Start ............................................................................................. Bulletin 948680
“P-CNN/H & P-KNN/H” Single Pressure - Soft Start w/H.P. Limiter...................................................... Bulletin 948681
“P-2NN/H” Dual Pressure Compensator w/H.P. Limiter........................................................................ Bulletin 948682
“P-E” Electronic Displacement Control ................................................................................................ Bulletin 948690
“P-E/F” Electronic Displacement Control w/Load Sense ..................................................................... Bulletin 948691
OILGEAR TYPE “PVG” PUMPS
180 (SERIES A2)
SERVICE INSTRUCTIONS
