Parker Oildyne 108 Series Hydraulic Power Units - WIT
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Parker Oildyne 108 Series Hydraulic Power Units

By A McIvor  –  Published 11/25/2009

 Parker Oildyne 108 Series Hydraulic Power Units

The compact 108 Series power units are completely self-contained with an AC or DC motor, gear pump, reservoir, internal valving, load hold checks and relief valves. Designed by Parker for intermittent service, these units come in four standard pump sizes.

Series units are available with single- or bi-directional rotation. Single units are commonly used to charge accumulators, power one-direction hydraulic motors and cylinders, provide pilot flow to servo valves, pressurize lube systems and supply multifunction circuits with external valving. Bi-directional, reversible units operate double-acting cylinders and two-way motors. Typical applications for these units are found in positioning systems, recreational vehicles, clamping, cycling, and lifting operations.


  • Pressures to 241 bar (3500 psi)
  • Flows to 2.8 lpm (3/4 gpm)
  • Four standard pump sizes which produce flows of .0098, .0187, .0246, and .0321 cubic inches per revolution
  • Locking check valves are available in all models. 
  • Several hydraulic circuits are available.
  • Single- or bi-directional rotation
Attached to this document is the Oildyne 108 Series Hydraulic Power Units Technical Information(.pdf), 108 series vertical A, B, C, D generic exploded view drawing (.pdf) and 108 with H, I, J tanks exploded view (.pdf)

Also reference in our troubleshooting section, the 108 series Start Up instructions and 108 series Relief Valve Adjustment and Cleaning.

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