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Gehl
Compact Excavator
503Z
Gehl 503Z User Manual
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918070/F
P0811
1-3
Printed i
n U.S.A.
Excavator Component In
dentification
Figure 1-
2 Component Names
Dipper Arm Cylinder
Boom
Bucket
Bucket Cylinder
Dipper Arm
Boom Cylinder
Dozer Blade
T
rack Fram
e
T
ravel Drive
Motor
Swing Frame/
Superstr
ucture
Hydraulic/Fuel
T
ank
Cover
Counterweight
Operat
or
’
s Seat
Op
erati
on Co
ntr
ols
Swing Cylinder
Engine Cover
8
10
Table of Contents
Default Chapter
3
Table of Contents
3
Chapter 1 - General Information
7
Introduction
7
Ownership Change
8
Excavator Component Indentification
9
Specifications
10
Fluid Capacities/Lubricants
10
Engine
11
Hydraulic System
11
Undercarriage and Swing System
12
Dozer Blade
12
Electrical System
12
Fuse Box in Instrument Panel
12
Main Fuse Box and Relays
13
Relays
13
Sound Levels
14
Coolant Compound Table
14
503Z General Specifications
15
General Specifications
16
Fields of Applications
17
Load Diagrams
18
Checklists
26
Chapter 2 - Safety
29
Safety Alerts
29
General Safety Rules
29
Unauthorized Modifications
30
Attachment Precautions
30
Mandatory Safety Shutdown Procedure
30
Operation Safety
30
Before Operation
30
During Operation
31
Exposure to Crystalline Silica
33
Parking the Machine
33
Travel Controls May Produce Reversed Travel Operations
33
Additional Travel Precautions
33
Snow, Ice and Cold Temperature Operation Precautions
34
Fire Hazards
34
Fire Extinguisher Recommendation
34
Additional Safety Equipment
34
Maintenance Safety
35
Safety Decals
37
Hydraulic Cylinder Seal Periodic Replacement
37
High Pressure Hydraulic Lines Store Energy
37
Operator's Cab and Swing Frame Deck Maintenance
37
Battery Electrolyte and Explosive Gas Hazard
37
Battery Disconnection Precaution
37
Jump-Starting or Charging the Battery
37
Lifting the Machine with Acrane
37
Transporting
38
Safety Decals
38
New Decal Application
38
ISO-Style Safety Decal Locations (Serial Numbers AJ02993 and Up)
39
ISO-Style Information Decal Locations (Serial Numbers AJ02993 and Up)
42
ANSI-Style Safety Decal Locations (Serial Numbers AH02282 and Before)
44
Chapter 3 - Operation
47
Operating Controls
47
Machine Orientation
47
Ignition Key Switch
59
Battery Disconnect Switch
59
Travel Controls
60
Tilting the Cab or Canopy
61
SAE Operating Controls
63
ISO Operating Controls
63
Boom Swivel/Auxiliary Hydraulics Pedal
64
Dozer Blade
64
Throttle Lever
65
Optional Auto-Idle Feature
65
Operator's Seat Adjustments
66
Arm Rests
66
Seat Belt
67
Ventilation
67
Mounting/Removing Buckets
71
Auxiliary Hydraulics Connections
73
Machine Operation
74
Pre-Operation Checklist
74
Engine Shut down
76
Travel
76
Machine Operation
78
Operating on Slopes
79
Cold Weather Operation
80
Operating in Water
80
Swiveling the Boom
80
Grading
81
Excavation
82
Excavating
83
Loading Vehicles
84
Transporting
85
Optional Controls
87
Proportional Auxiliary Hydraulic
87
Joystick Control (Option)
87
Two-Speed Variable Auxiliary Hydraulic Mode Selection
88
Auxiliary Hydraulic Hammer Operation
89
Chapter 4 - Maintenance
91
General Information
91
Care and Servicing
91
Maintenance Safety
92
Maintenance Label Symbols
93
Maintenance Label
94
Maintenance Schedule
95
Check, Clean and Inspect
95
Fluid and Filter Changes
96
Cab Air Conditioning
97
Cab Functional Checks
97
Leakage Checks
97
Lubrication
98
Recommended Lubricants
99
Engine
99
Changing Engine Oil and Filter
100
Air Cleaner Service
100
Fuel System
101
Cooling System
104
Electrical System
104
Battery
105
Hydraulic System
107
Checking and Adjusting V-Belt Tension
112
Checking and Adjusting Air Conditioning V-Belt Tension
112
Track System
113
Windshield Washer Fluid
116
Long-Term Storage
116
Before Storage
116
After Storage
117
Chapter 5 - Troubleshooting
119
Engine
119
Indicator Lamps
121
Seals and Hoses
121
Traveling Gear
122
Bucket, Boom and Dozer Blade
122
Engine Error Codes
123
Error Diagnostic Code Examples
123
Engine Diagnostic Codes Table
124
Chapter 6 - Index
127
4
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Gehl 503Z Specifications
General
Brand
Gehl
Model
503Z
Category
Compact Excavator
Language
English
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