Gehl GE 502, GE 602, GE 652 Mini Excavator Repair Service Manual

Table of Content of the Gehl GE 502, GE 602, GE 652 Mini Excavator Manual:

A Technical data
Dimensions…………………………………………………………………………… A2
Bucket and Geometry……………………………………………………………… A4
Lift capacity charts………………………………………………………………….. A6
Hydraulic settings…………………………………………………………………… A12
Auxiliary hydraulics…………………………………………………………………. A13
Diesel engine settings…………………………………………………………….. A14
B Maintenance
Maintenance schedule……………………………………………………………… B2
Maintenance – general…………………………………………………………….. B5
Lubricants……………………………………………………………………………… B6
Lubrication chart……………………………………………………………………… B8
Hydraulic system…………………………………………………………………….. B9
Hydraulic pump………………………………………………………………………. B20
Hose burst protection valve………………………………………………………. B21
Drive unit………………………………………………………………………………. B22
Swivel unit…………………………………………………………………………….. B23
Diesel engine………………………………………………………………………… B24
Undercarriage………………………………………………………………………… B35
Hydraulic oil tank…………………………………………………………………….. B36
C Hydraulic
Hydraulic system / diagrams……………………………………………………… C2
Position of components……………………………………………………………. C6
Hydraulic pump………………………………………………………………………. C9
Pilot oil supply unit………………………………………………………………….. C12
Main valve block…………………………………………………………………….. C17
Pilot control valves………………………………………………………………….. C32
Swivel unit…………………………………………………………………………….. C38
Shuttle valve block…………………………………………………………………. C44
Drive unit………………………………………………………………………………. C47
Swivel joint……………………………………………………………………………. C50
Switch valve………………………………………………………………………….. C51
Tank………………………………………………………………………………… C52
D Diesel Engine
Diesel engine specifications……………………………………………………… D2
Fuel line diagram……………………………………………………………………. D3
Battery…………………………………………………………………………………. D4
Radiator……………………………………………………………………………….. D5
Cylinder head bolt tightening / loosening order…………………………….. D5
E Electrical
Electrical system diagrams ………………………………………………… E2
Electrical system component positions ………………………………………. E6
Electrical system diagrams ………………………………………………… E12
Electrical connections …………………………………………………………… E21
Fuse box ……………………………………………………………………… E27
F Operating Elements
Machine overview …………………………………………………………… F2
Component description …………………………………………………………… F3
Cab equipment and controls ………………………………………………… F4
Lifting the excavator …………………………………………………………… F10

This Service Manual is intended for Gehl GE 502, GE 602, GE 652 Mini Excavator so as to give the owner/operator assistance in preparing, adjusting, maintaining and servicing the machine. More importantly, this manual provides an operating plan for safe and proper use of the machine. Major points of safe operation are
detailed in Chapter 2 – Safety. Read and understand the contents of this manual completely and become familiar with the machine before
attempting to operate it..

Throughout this manual, information is introduced by the word NOTE or IMPORTANT. Be sure to read the message carefully and comply with the message. Following this information will improve operating and maintenance efficiency, help to avoid breakdown and damage and extend the service life of the machine.