This is the complete factory Parts Manual for the Gehl 803 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 803 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.


Form No. : 918076 Revision C May 2008


Manual Covers:

Introduction..................... Inside Front Cover
Table of Contents.........................................1
Decal Locations ...........................................4
Diesel Engine - Tier III ................................8
Diesel Engine - Tier II .................................9
Engine Mounts - Tier III............................10
Engine Mounts - Tier II .............................11
Cylinder Head, Valve Cover......................12
Cylinder Block...........................................13
Seal - Crankshaft - Tier III.........................14
Seal - Crankshaft - Tier II ..........................15
Oil Pan - Tier III ........................................16
Oil Pan - Tier II..........................................17
Camshaft - Tier III .....................................18
Camshaft - Tier II ......................................19
Crankshaft, Piston - Tier III.......................20
Crankshaft, Piston - Tier II ........................21
Lubrication - Tier III..................................22
Lubrication - Tier II ...................................23
Cooling System - Tier III...........................24
Cooling System - Tier II ............................25
Fuel Injection System - Tier III .................26
Fuel Injection System - Tier II...................27
Engine Air Filter - Tier III .........................28
Engine Air Filter - Tier II ..........................29
Intake Manifold - Tier III...........................30
Intake Manifold - Tier II ............................31
Exhaust Components - Tier III ..................32
Exhaust Components - Tier II....................33
Diesel Tank ................................................34
Hydraulic Pump Drive ...............................35
Fuel Supply - Tier III .................................36
Fuel Supply - Tier II ..................................37
Auto Idle/Throttle - Tier III .......................38
Throttle Lever - Tier II...............................39
Radiator - Tier III.......................................40
Radiator - Tier II ........................................41
Turntable Drive Unit Installation...............44
Turntable Drive Unit..................................46
Oil Cooler ..................................................47
Pilot Control Drive Unit ............................48
Drive Motor Installation ............................50
Drive Motor (Mag 50) ...............................52
Drive Motor (Mag 44) ...............................53
Hydraulic Oil Tank ....................................55
Hydraulic Pump .........................................58
Hydraulic Pump Components....................59
Control Valve Fittings ...............................60
Control Valve Assembly............................62
Pilot Oil Supply Unit .................................63
Cut-Off Valve ............................................64
Swivel Joint................................................67
Joysticks.....................................................68
Pilot Valve, Travel.....................................70
Auxiliary Hydraulics - Pilot Valve ............72
Control Valve Fittings ...............................72
Dozer Blade Valve.....................................73
Proportional Valve (Option) ......................74
Selection Valve ..........................................75
ISO/SAE Valve..........................................76
Manifold Block ..........................................77
Valve Block ...............................................78
Manifold.....................................................80
Hydraulic Pump Installation ......................82
Boom Installation.......................................83
Boom Cylinder...........................................84
Dipper Arm Installation .............................86
Dipper Arm Cylinder .................................87
Bucket Installation - Short Dipper Arm.....88
Bucket Installation - Long Dipper Arm
(Option)..................................................89
Bucket Cylinder .........................................90
Boom Offset Cylinder Installation.............92
Boom Offset Cylinder................................93
Dozer Blade Installation ............................94
Dozer Blade Cylinder ................................95
Auxiliary Hydraulics Installation...............96
Proportional Control (Option) ...................98
ISO/SAE Valve Installation.......................99
Hydraulic Tank Hoses .............................100
Pilot Pressure Hoses.................................102
Battery......................................................103
Dashboard ................................................104
Radio (Option) .........................................106
Horn .........................................................107
Relay Box ................................................108
Cab Work Lights - Front (Option)...........110
Cab Work Light - Rear (Option)..............112
Boom Work Light....................................113
Wire Harness - Engine.............................114
Wire Harness - Chassis, Engine...............115
Wire Harness - Chassis ............................117
Wire Harness - Oil Control......................118
Wire Harness - Armrest ...........................119
Wire Harness - Switch .............................120
Wire Harness - Work Light - Front..........122
Wire Harness - Cab..................................123
Wire Harness - Auto-Idle (Option) ..........124
Wire Harness - Proportional Control
(Option)................................................126
Dozer Blade .............................................127
Undercarriage, Rubber Track...................128
Rubber Track ...........................................129
Undercarriage, Steel Track (Option)........130
Steel Track (Option) ................................131
Track Tensioner, Rubber Track ...............132
Track Tensioner, Steel Track (Option) ....134
Track Roller (Rubber Track) ...................136
Bottom Roller ..........................................137
Top Roller ................................................138
Top Roller ................................................139
Chassis .....................................................140
Lubrication...............................................141
Counterweight..........................................142
Counterweight (Option)...........................144
Engine Hood - Tier III .............................145
Engine Hood - Tier II...............................146
Tank Cover ..............................................148
Partition Wall...........................................149
Isolation Mats ..........................................152
Undercarriage Cover................................155
Chassis Cover ..........................................156
Mirrors .....................................................158
Boom........................................................159
Dipper Arm - Short ..................................160
Dipper Arm - Long (Option) ...................162
Cab Mounting ..........................................164
Cab Frame 1.............................................165
Cab Frame 2.............................................168
Cab Door..................................................171
Windshield ...............................................172
Cabin Windows........................................175
Cab Trim ..................................................176
Operators Seat ........................................178
Heater.......................................................180
Air Condi