## Gehl 603 Compact Excavator: A Workhorse for Demanding Excavating Tasks

### Unmatched Performance and Productivity

The Gehl 603 Compact Excavator delivers exceptional performance, empowering operators to tackle the most challenging excavating tasks with precision and efficiency. Its powerful hydraulic system and advanced boom design provide impressive digging force, ensuring optimal productivity in a variety of applications.

### Exceptional Maneuverability and Accessibility

With its compact size and innovative undercarriage design, the Gehl 603 Compact Excavator navigates tight spaces with ease. Its hydraulic track system offers exceptional stability and traction, allowing operators to work confidently on uneven and challenging terrain. The machine's narrow profile enables access to confined areas, making it ideal for urban construction and landscaping projects.

### Enhanced Operator Comfort and Convenience

The Gehl 603 Compact Excavator prioritizes operator comfort and convenience. Its spacious cab features an ergonomic layout with intuitive controls, minimizing fatigue and enhancing productivity. The cab's wide visibility panels provide excellent situational awareness, ensuring safe and efficient operation. Suspension seats and low-noise levels further contribute to operator comfort, allowing for extended work sessions.

### Versatility and Customization

The Gehl 603 Compact Excavator is highly versatile and adaptable, capable of handling a wide range of attachments. Its hydraulic quick-coupler system allows for swift and effortless attachment changes, maximizing productivity. Optional features, such as a hydraulic thumb, extend the machine's capabilities, enabling it to perform a variety of tasks, including material handling, demolition, and grading.

### Durability and Reliability

Built to withstand the rigors of demanding excavation environments, the Gehl 603 Compact Excavator boasts exceptional durability and reliability. Its robust construction and high-quality components ensure longevity and minimal downtime. Regular maintenance and servicing, as outlined in the accompanying Gehl 603 Compact Excavator Parts Manual, are crucial to maintaining optimal performance and extending the machine's lifespan.

This is the complete factory Parts Manual for the Gehl 603 Compact Excavator.This Manual has easy-to-read text sections with top quality diagrams and instructions.They are specifically written for the do-it-yourselfer as well as the experienced mechanic.With step by step instruction & highly detailed exploded pictures & diagrams to show you how to complete the required job correctly & efficiently Using. Gehl 603 Compact Excavator Parts Manual covers every single detail on your machine.provides step-by-step instructions based on the complete disassembly of the machine.This repair manual is an inexpensive way to keep you vehicle working properly.


Serial Number Range
Engine Tier II Models: AC02513 to AD07207
Engine Tier III Models: AH00645 and up

Form No. : 918072 Revision E Sept. 2009


Manual Covers:

Introduction.................................................. i
Table of Contents.........................................1
Decal Locations ...........................................4
Tools / Service Kits......................................8
Filters, Gaskets and Seals ............................9
Battery........................................................11
Diesel Engine.............................................12
Engine Mounts ...........................................14
Cylinder Head & Valve Cover...................16
Cylinder Block...........................................20
Seal, Crankshaft .........................................22
Oil Pan .......................................................24
Camshaft ....................................................26
Crankshaft & Piston...................................28
Lubrication.................................................30
Cooling System..........................................32
Fuel Injection System ................................34
Intake Manifold..........................................36
Engine Air Filter ........................................38
Exhaust System..........................................41
Fuel Tank ...................................................43
Fuel Supply ................................................46
Auto Idle/Throttle ......................................48
Throttle.......................................................49
Hydraulic Pump Drive ...............................50
Oil Cooler ..................................................51
Radiator......................................................52
Turntable Drive Unit..................................56
Turntable Drive Unit Installation...............58
Drive Unit ..................................................60
Drive Unit Installation ...............................61
Hydraulic Oil Tank ....................................62
Hydraulic Oil Tank Hoses .........................66
Hydraulic Pump/External Parts .................67
Hydraulic Pump/Internal Parts...................69
Hydraulic Pump Installation ......................70
Swivel Joint................................................72
Control Valve Fittings ...............................73
Control Valve Segments ............................74
Control Valve Fittings ...............................75
Control Valve Segments ............................76
Pilot Pressure Hoses...................................77
Joysticks.....................................................78
Travel Pilot Valve......................................80
Auxiliary Hydraulics Control Valve
Installation ..............................................82
Control Valve For Auxiliary Hydraulics ...83
Dozer Blade Valve.....................................84
Proportional Valve (Option) ......................85
Proportional Valve Installation (Option) ...86
4/3 Valve (Option) .....................................87
4/3 Valve Installation (Option) ..................88
ISO/SAE Valve..........................................89
ISO/SAE Valve Installation.......................90
Reversing Valve.........................................91
Valve Block ...............................................92
Distribution Block......................................93
Boom Cylinder...........................................94
Boom Cylinder Installation........................96
Dipper Arm Cylinder .................................97
Dipper Arm Installation .............................98
Bucket Cylinder .........................................99
Bucket Cylinder Installation ....................100
Swivel Cylinder .......................................101
Swivel Cylinder Installation ....................104
Dozer Blade Cylinder ..............................107
Dozer Blade Cylinder Installation ...........108
Instrument Panel ......................................109
Relay Box ................................................112
Horn .........................................................114
Radio (Option) .........................................115
Boom Work Light....................................116
Rotating Beacon (Option)........................117
Cab Work Lights, Front (Option) ............118
Cab Work Light, Rear (Option)...............120
Wire Harness, Chassis .............................121
Wire Harness, Engine .............................122
Wire Harness, Chassis & Engine.............123
Wire Harness, Armrest ............................125
Wire Harness, Switch ..............................126
Wire Harness, Lighting............................129
Wire Harness, Cab ...................................130
Wire Harness, Proportional Control
(Option)..................................................131
Rubber Track ...........................................132
Steel Track (Option) ................................133
Undercarriage, Rubber Track ..................134
Undercarriage, Steel Track (Option) .......135
Track Tensioner, Rubber Track ...............137
Track Tensioner, Steel Track (Option) ....139
Dozer Blade .............................................140
Chassis .....................................................141
Chassis Lubrication..................................142
Counterweight..........................................143
Counterweight, Additional (Option)........145
Engine Hood ............................................146
Tank Cover ..............................................149
Partition Wall...........................................150
Undercarriage Covers ..............................153
Isolation Mats ..........................................154
Chassis Covers .........................................156
Boom........................................................158
Dipper Arm, Short ...................................161
Dipper Arm, Long (Option).....................162
Cab Mounting ..........................................164
Cab ...........................................................165
Cab Frame Trim.......................................168
Cab Trim ..................................................171
Cab Mirrors..............................................172
Cab Door..................................................173
Cab Windshield........................................175
Cab Windows (Except Windshield) ........179
Operators Seat ........................................180
Cab Heater ...............................................184
Air Conditioning (Option) .......................186
Air Conditioning Compressor (Option)...187
Air Conditioning Installation ...................189
Index ........................................................191
Numerical Index ......................................194
And More......


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