Gehl GE 253, GE 303, GE 353, GE 373 Excavator Repair Service Manual

Table of Content of the Gehl GE 253, GE 303, GE 353, GE 373 Excavator Manual:

Chapter Page
A Technical Data
1 Dimensions ……………………………………………………………………………….A2
2 Bucket and Geomertry ………………………………………………………………..A7
3 Lift Capacities…………………………………………………………………………….A8
5 Hydraulic System……………………………………………………………………….A12
6 Desiel Engine ……………………………………………………………………………A15
7 Tighten Torques …………………………………………………………………………A19
B Maintenance
1 Maintenance Schedule ……………………………………………………………….B2
2 Lubricants …………………………………………………………………………………B6
3 Hydraulic System……………………………………………………………………….B7
4 Auxiliary Hydraulics ……………………………………………………………………B14
5 Hydraulic Pump …………………………………………………………………………B15
6 Hose Burst Protection Valve ……………………………………………………….B15
7 Drive Unit ………………………………………………………………………………….B16
8 Swivel Unit ………………………………………………………………………………..B16
9 Hydraulic Oil Tank ………………………………………………………………………B17
10 Diesel Engine ……………………………………………………………………………B17
11 Cab ………………………………………………………………………………………….B19
12 Undercarriage ……………………………………………………………………………B20
C Hydraulics
1 Hydraulic System ……………………………………………………………………….C2
2 Hydraulic Component Location …………………………………………………….C4
3 Hydraulic Pump ………………………………………………………………………….C6
4 Pilot Oil Supply Unit ……………………………………………………………………C11
5 Main Valve Block ……………………………………………………………………….C16
6 Pilot Control Valves …………………………………………………………………….C32
7 Swivel Unit ………………………………………………………………………………..C35
8 Drive Unit ………………………………………………………………………………….C42
9 Swivel Joint ……………………………………………………………………………….C52
10 Switch Valves …………………………………………………………………………….C55
13 Hydraulic Oil Tank ………………………………………………………………………C58
D Diesel Engine
1 Diesel Engine Overall ………………………………………………………………..D2
2 Alternator …………………………………………………………………………………..D4
3 Starter……………………………………………………………………………………….D4
4 Water Cooler ……………………………………………………………………………..D4
E Electrical
1 Diagram (Kabota Diesel Engine Starting at Serial No. AB00001) ……..E2
2 Diagram (Yanmar Diesel Engine Starting at Serial No. AD00001) …….E8
F Operation Elements
1 Major Components ……………………………………………………………………..F2
2 Cab Equipment and Controls ……………………………………………………….F3
3 Instrument Panel Functions …………………………………………………………F4
4 Hydraulic Connections for Additional Attachments………………………….F6
5 Brakes and Swivel Lock Mechanism ……………………………………………F6
6 Tilting the Superstrucure ……………………………………………………………..F7
G Attachment
1 Bucket List ………………………………………………………………………………..G2

This Service Manual is intended for Gehl GE 253, GE 303, GE 353, GE 373 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.