Eaton® Hydrostatic Pumps Series 1 Models 33-64 Hydrostatic Variable Pumps Repair Information

2022-10-27
■This manual provides service information for Eaton Models 33 thru 64 Variable Pumps. Step by step instructions for the complete disassembly, inspection and reassembly of the pump are given. The following recommendations should be followed to insure successful repairs:
●Most repairs require the removal of the pump from the vehicle.
●Cleanliness is extremely important.
●Clean the port areas thoroughly before disconnecting the hydraulic lines.
●Plug the pump ports and cover the open hydraulic lines immediately after they're disconnected.
●Drain the oil and clean the exterior of the pump before making repairs.
●Wash all metal parts in clean solvent.
●Use compressed air to dry the parts. Do not wipe them dry with paper towels or cloth; Lint in a hydraulic system will cause damage.
●The compressed air should be filtered and moisture free.
●Always use new seals when reassembling hydraulic pumps.
●For replacement parts and ordering information refer to parts list 6-608.
●Lubricate the new rubber seals with a petroleum jelly like Vaseline before installation.
●Torque all bolts over gasketed joints, then repeat the torquing sequence to make-up for gasket compression.
●Verifying the accuracy of pump repairs on an authorized test stand is essential.

EATON ELECTRIC

3339465464Series 1Models 33Models 39Models 46Models 54Models 640000 00 - 000

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Hydrostatic Variable Pumps

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User's Guide

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English Chinese Chinese and English Japanese

January 2010

E-PUPI-TS013-E1

2.5 MB

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