This manual provides service information for the Eaton 70160 variable displacement piston pump, including step‑by‑step disassembly, inspection, and reassembly procedures.
It includes required tools, detailed parts lists, torque specifications, O‑ring sizes, mounting kits, and troubleshooting guidance for both single and tandem pump configurations.
| Displacement | 20.3 cm³/r or 23.6 cm³/r |
|---|---|
| Torque wrench capacity | 136 N·m (100 lb·ft) |
| Standard pressure range | 6.9 to 10.3 bar (100 to 150 PSI) |
| High pressure range | 13.7 to 20.7 bar (200 to 300 PSI) |
Remove the pump, clean the port areas thoroughly before disconnecting hydraulic lines, plug the ports, drain the oil, wash all metal parts in clean solvent, and use filtered, moisture‑free compressed air.
Required tools include 1/2, 9/16, 7/8 & 1‑1/8 in. sockets or end wrenches, a torque wrench with 136 N·m capacity, Allen wrenches, retaining ring pliers, small screwdrivers, a hammer, petroleum jelly, and a seal driver.
The standard spring operates at 6.9 to 10.3 bar (100 to 150 PSI), while the optional high‑pressure spring operates at 13.7 to 20.7 bar (200 to 300 PSI).