Eaton 620 - Page 3

3EATON 620 Mobile Open Circuit Piston Pump Service Manual E-PUPI-TS018-E2 November 2017
Table of Contents
Contents
SERVICE PARTS
Parts identification ....................................................................................04
Exploded assembly ...................................................................................06
Optional assembly ....................................................................................07
Typical cross section .................................................................................10
Housing ............................................................................................11
Shaft seal and Swashplate .............................................................................12
Shaft, drive and Key ...................................................................................13
Rotating group S/A and Valve plate .......................................................................14
Bearing assembly and End cover S/A .....................................................................15
Control piston and Plug adjustable volume stop .............................................................16
Plugs and Compensator kits - factory set ..................................................................17
Compensator mounting screws and Coupler ...............................................................18
Thru drive adapter kit and Cold start manifold (Destroke) .....................................................19
Cover and Hex head cap screw ..........................................................................20
Torque control S/A and Electronic displacement control S/A ...................................................21
REPAIR
620 Mobile piston pump repair ..........................................................................22
General information ..................................................................................23
Required tools ......................................................................................23
Special tools ........................................................................................23
Disassembly ........................................................................................24
Inspection, repair and part replacement ..................................................................29
Shimming process ....................................................................................31
Assembly ..........................................................................................32
Testing ............................................................................................36
Assembly torque values ...............................................................................37