Genie GS-3390 User manual

July 2007
GS-3390 • GS-4390 • GS-5390 Part No. 72863
Important
Read, understand and obey the safety rules and
operating instructions in the appropriate Operator's
Manual on your machine before attempting any
maintenance or repair procedure.
This manual provides detailed scheduled
maintenance information for the machine owner
and user. It also provides troubleshooting and
repair procedures for qualified service
professionals.
Basic mechanical, hydraulic and electrical
skills are required to perform most procedures.
However, several procedures require specialized
skills, tools, lifting equipment and a suitable
workshop. In these instances, we strongly
recommend that maintenance and repair be
performed at an authorized Genie dealer
service center.
Technical Publications
Genie Industries has endeavored to deliver the
highest degree of accuracy possible. However,
continuous improvement of our products is a Genie
policy. Therefore, product specifications are
subject to change without notice.
Readers are encouraged to notify Genie of errors
and send in suggestions for improvement. All
communications will be carefully considered for
future printings of this and all other manuals.
Contact Us:
PO Box 97030
Redmond, WA 98073-9730 USA
www.genieindustries.com
e-mail: [email protected]
Copyright © 2001 by Genie Industries
72863 Rev G July 2007
First Edition, Seventh Printing
"Genie" is a registered trademark of Genie
Industries in the USA and many other countries.
"GS" is a trademark of Genie Industries.
Printed on recycled paper
Printed in U.S.A.
ii
Introduction
Introduction

July 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390
iii
Serial Number Legend
GS30 05 A - 12345
Model
Year of
manufacture
Facility code
(if applicable)
Sequence
number
PN - 77055
Model:
Model year: Manufacture date:
Maximum allowable inclination of the chassis:
Country of manufacture: USA
This machine complies with:
Serial number:
Rated work load (including occupants):
Genie Industries
18340 NE 76th Street
Redmond, WA 98052
USA
Electrical schematic number:
Gradeability:
Maximum allowable side force :
Maximum number of platfrm occupants:
Machine unladen weight:
ANSI A92.6-1999
B354.2-01
GS-1930
GS3005A-12345
04/12/05
ES0141
2,714 lb / 1,231 kg
500 lb / 227kg
N/A
N/A
100 lb / 445kg
2
2005
INTRODUCTION

July 2007
GS-3390 • GS-4390 • GS-5390 Part No. 72863
iv
This page intentionally left blank.

July 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390
Danger
Failure to obey the instructions and safety rules
in this manual and the appropriate Operator's
Manual on your machine will result in death or
serious injury.
Many of the hazards identified in the
operator’s manual are also safety hazards
when maintenance and repair procedures
are performed.
Do Not Perform Maintenance
Unless:
You are trained and qualified to perform
maintenance on this machine.
You read, understand and obey:
- manufacturer’s instructions and safety rules
- employer’s safety rules and worksite
regulations
- applicable governmental regulations
You have the appropriate tools, lifting
equipment and a suitable workshop.
Safety Rules
Section 1 • Safety Rules
v

July 2007
GS-3390 • GS-4390 • GS-5390 Part No. 72863
vi
Section 1 • Safety Rules
Personal Safety
Any person working on or around a machine must
be aware of all known safety hazards. Personal
safety and the continued safe operation of the
machine should be your top priority.
Read each procedure thoroughly. This
manual and the decals on the machine,
use signal words to identify the following:
Safety alert symbol—used to alert
personnel to potential personal
injury hazards. Obey all safety
messages that follow this symbol
to avoid possible injury or death.
Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided,
could result in death or serious
injury.
Indicates a potentially hazardous
situation which, if not avoided,
may cause minor or moderate
injury.
Indicates a potentially hazardous
situation which, if not avoided,
may result in property damage.
Be sure to wear protective eye wear and
other protective clothing if the situation
warrants it.
Be aware of potential crushing hazards
such as moving parts, free swinging or
unsecured components when lifting or
placing loads. Always wear approved steel-toed
shoes.
Workplace Safety
Be sure to keep sparks, flames and
lighted tobacco away from flammable and
combustible materials like battery gases
and engine fuels. Always have an approved fire
extinguisher within easy reach.
Be sure that all tools and working areas
are properly maintained and ready for
use. Keep work surfaces clean and free of
debris that could get into machine components and
cause damage.
Be sure any forklift, overhead crane or
other lifting or supporting device is fully
capable of supporting and stabilizing the
weight to be lifted. Use only chains or straps that
are in good condition and of ample capacity.
Be sure that fasteners intended for one
time use (i.e., cotter pins and self-locking
nuts) are not reused. These components
may fail if they are used a second time.
Be sure to properly dispose of old oil or
other fluids. Use an approved container.
Please be environmentally safe.
Be sure that your workshop or work area
is properly ventilated and well lit.
SAFETY RULES

July 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390
Table of Contents
vii
Introduction
Important Information ......................................................................................... ii
Serial Number Legend ...................................................................................... iii
Section 1 Safety Rules
General Safety Rules ........................................................................................ v
Section 2 Rev Specifications
G Machine Specifications ................................................................................ 2 - 1
Performance Specifications ......................................................................... 2 - 2
Hydraulic Specifications ............................................................................... 2 - 2
Hydraulic Component Specifications ........................................................... 2 - 3
Manifold Component Specifications ............................................................. 2 - 5
Valve Coil Resistance Specifications ........................................................... 2 - 5
Ford LRG-425 EFI Engine ........................................................................... 2 - 6
Deutz F4L 1011F Engine ............................................................................. 2 - 7
Deutz F3L 1011F Engine ............................................................................. 2 - 8
Deutz F3L 2011 Engine ............................................................................... 2 - 9
Deutz D2011L03i Engine ............................................................................. 2 - 9
Hydraulic Hose and Fitting Torque Specifications ...................................... 2 - 10
SAE and Metric Fasteners Torque Charts ................................................. 2 - 11
Section 3 Rev Scheduled Maintenance Procedures
Introduction .................................................................................................. 3 - 1
Pre-delivery Preparation Report .................................................................. 3 - 3
Maintenance Inspection Report ................................................................... 3 - 5
EChecklist A Procedures
A-1 Inspect the Manuals and Decals ......................................................... 3 - 7
A-2 Perform Pre-operation Inspection ....................................................... 3 - 8
A-3 Perform Function Tests ...................................................................... 3 - 8
A-4 Perform Engine Maintenance - Ford models ...................................... 3 - 9
A-5 Perform Engine Maintenance - Deutz models .................................... 3 - 9

July 2007
GS-3390 • GS-4390 • GS-5390 Part No. 72863
TABLE OF CONTENTS
viii
Section 3 Rev Scheduled Maintenance Procedures, continued
A-6 Perform 30 Day Service ................................................................... 3 - 10
A-7 Perform Engine Maintenance - Deutz models .................................. 3 - 10
A-8 Perform Engine Maintenance - Ford models .................................... 3 - 11
A-9 Check the Hydraulic Return Filter Condition Indicator (if equipped)... 3 - 11
A-10 Perform Engine Maintenance - Deutz 1011F Models ....................... 3 - 12
A-11 Drain the Fuel Filter / Water Separator - Deutz models .................... 3 - 12
A-12 Perform Engine Maintenance - Ford Models .................................... 3 - 13
GChecklist B Procedures
B-1 Inspect the Battery ........................................................................... 3 - 14
B-2 Inspect the Electrical Wiring ............................................................. 3 - 15
B-3 Perform Engine Maintenance - Deutz 1011F Models ....................... 3 - 16
B-4 Check the Exhaust System .............................................................. 3 - 16
B-5 Inspect the Engine Air Filter.............................................................. 3 - 17
B-6 Check and Adjust the Engine RPM .................................................. 3 - 18
B-7 Confirm the Proper Brake Configuration ........................................... 3 - 20
B-8 Inspect the Tires and Wheels (including lug nut torque) ................... 3 - 20
B-9 Check the Oil Level in the Drive Hubs .............................................. 3 - 21
B-10 Test the Key Switch .......................................................................... 3 - 21
B-11 Test the Emergency Stop ................................................................. 3 - 22
B-12 Test the Automotive-style Horn ........................................................ 3 - 22
B-13 Test the Fuel Select Operation - Ford Models .................................. 3 - 23
B-14 Test the Drive Brakes ....................................................................... 3 - 24
B-15 Test the Drive Speed - Stowed Position ........................................... 3 - 24
B-16 Test the Drive Speed - Raised Position ............................................ 3 - 25
B-17 Perform Hydraulic Oil Analysis ......................................................... 3 - 26
B-18 Inspect the Fuel and Hydraulic Tank Cap Venting Systems ............. 3 - 27
B-19 Replace the Engine Air Filter Element - Ford Models ....................... 3 - 28
B-20 Perform Engine Maintenance - Ford Models .................................... 3 - 28
EChecklist C Procedure
C-1 Test the Platform Overload System (if equipped) ............................. 3 - 29
C-2 Replace the Engine Air Filter Element - Deutz Models ..................... 3 - 30

July 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390
TABLE OF CONTENTS
ix
Section 3 Rev Scheduled Maintenance Procedures, continued
C-3 Perform Engine Maintenance - Deutz Models .................................. 3 - 31
C-4 Replace the Hydraulic Tank Breather Cap -
Models with Optional Hydraulic Oil ................................................... 3 - 31
C-5 Perform Engine Maintenance - Ford Models .................................... 3 - 31
EChecklist D Procedures
D-1 Check the Scissor Arm Wear Pads .................................................. 3 - 32
D-2 Check the Free-wheel Configuration ................................................ 3 - 33
D-3 Replace the Drive Hub Oil ................................................................ 3 - 34
D-4 Replace the Fuel Filter / Water Separator - Deutz models ................ 3 - 34
D-5 Replace the Hydraulic Tank Return Filter ......................................... 3 - 35
D-6 Perform Engine Maintenance - Deutz Models .................................. 3 - 37
CChecklist E Procedure
E-1 Test or Replace the Hydraulic Oil ..................................................... 3 - 38
E-2 Perform Engine Maintenance - Deutz 1011F Models ....................... 3 - 40
E-3 Perform Engine Maintenance - Ford Models .................................... 3 - 41
E-4 Perform Engine Maintenance - Deutz Models .................................. 3 - 41
E-5 Perform Engine Maintenance - Deutz 2011 Models ......................... 3 - 42
E-6 Perform Engine Maintenance - Ford Models
(before serial number GS9003-41369) ............................................. 3 - 42
Section 4 Rev Repair Procedures
Introduction .................................................................................................. 4 - 1
EPlatform Controls
1-1 Circuit Boards .................................................................................... 4 - 2
1-2 Joystick Controller .............................................................................. 4 - 3
1-3 Controller Adjustments (before serial number GS9003-41523) .......... 4 - 5
1-4 Software Configuration (before serial number GS9003-41523) ........ 4 - 11
CPlatform Components
2-1 Platform ........................................................................................... 4 - 15
2-2 Platform Extension Deck .................................................................. 4 - 17

July 2007
GS-3390 • GS-4390 • GS-5390 Part No. 72863
TABLE OF CONTENTS
x
Section 4 Rev Repair Procedures, continued
DScissor Components
3-1 Scissor Assembly, GS-3390 ............................................................ 4 - 18
3-2 Scissor Assembly, GS-4390 ............................................................ 4 - 24
3-3 Scissor Assembly, GS-5390 ............................................................ 4 - 34
3-4 Wear Pads ....................................................................................... 4 - 47
3-5 Lift Cylinder(s) .................................................................................. 4 - 49
DEngines
4-1 RPM Adjustment .............................................................................. 4 - 53
4-2 Engine Fault Codes - Ford Models ................................................... 4 - 53
4-3 Flex Plate ......................................................................................... 4 - 53
4-4 Oil Temperature and Oil Pressure Switches - Deutz Models ............ 4 - 57
4-5 Coolant Temperature and Oil Pressure Switches - Ford Models ...... 4 - 58
DGround Controls
5-1 Auxiliary Platform Lowering .............................................................. 4 - 59
5-2 Controller Adjustments (after serial number GS9003-41522) ........... 4 - 59
5-3 Software Configuration (after serial number GS9003-41522) ........... 4 - 70
5-4 Level Sensor - Models without Outriggers
(before serial number 41158) ........................................................... 4 - 74
5-5 Level Sensor - Models without Outriggers
(after serial number 41157) .............................................................. 4 - 77
5-6 Level Sensor - Models with Outriggers............................................. 4 - 79
5-7 Engine Fault Codes - Ford Models ................................................... 4 - 84
DHydraulic Pumps
6-1 Lift/Steer Pump ................................................................................ 4 - 86
6-2 Drive Pump ...................................................................................... 4 - 88
GManifolds
7-1 Function Manifold Components - Models with Outriggers
(before serial number 40519) ........................................................... 4 - 90
7-2 Function Manifold Components - Models with Outriggers
(after serial number 40518) .............................................................. 4 - 92
7-3 Function Manifold Components - Models without Outriggers
(before serial number 40519) ........................................................... 4 - 94

July 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390
TABLE OF CONTENTS
xi
Section 4 Rev Repair Procedures, continued
7-4 Function Manifold Components - Models without Outriggers
(after serial number 40518) .............................................................. 4 - 96
7-5 Drive Manifold Components
(before serial number GS9004-41691) ............................................. 4 - 98
7-6 Drive Manifold Components
(after serial number GS9004-41690) .............................................. 4 - 100
7-7 Oscillate Manifold Components
(optional after serial number GS9004-41690) ................................ 4 - 102
7-8 Valve Adjustments - Function Manifold .......................................... 4 - 104
7-9 Valve Adjustments - Drive Manifold ............................................... 4 - 106
7-10 Generator Manifold Components ................................................... 4 - 108
7-11 Valve Adjustments - Generator Manifold ........................................ 4 - 109
7-12 Valve Coils ..................................................................................... 4 - 110
CFuel and Hydraulic Tanks
8-1 Fuel Tank ....................................................................................... 4 - 112
8-2 Hydraulic Tank ............................................................................... 4 - 113
CSteer Axle Components
9-1 Yoke and Drive Motor .................................................................... 4 - 115
9-2 Steer Cylinder ................................................................................ 4 - 117
9-3 Tie Rod .......................................................................................... 4 - 118
9-4 Oscillating Axle Option (after serial number GS9004-41690) ......... 4 - 119
BNon-steer Axle Components
10-1 Drive Motor and Brake ................................................................... 4 - 120
10-2 Drive Hub ....................................................................................... 4 - 121
10-3 Oscillating Axle .............................................................................. 4 - 121
AOutrigger Components
11-1 Outrigger Cylinder .......................................................................... 4 - 122
APlatform Overload Components
12-1 Platform Overload System ............................................................. 4 - 123

July 2007
GS-3390 • GS-4390 • GS-5390 Part No. 72863
xii
TABLE OF CONTENTS
Section 5 Rev Fault Codes
Introduction ................................................................................................. 5 - 1
C Fault Code Chart
(before serial number GS9003-41523) ........................................................ 5 - 3
A Fault Code Chart
(after serial number GS9003-41522) ........................................................... 5 - 5
A Ford Engine ECM Fault Code Chart
(before serial number GS9003-41369) ........................................................ 5 - 8
A Ford Engine ECM Fault Code Chart
(after serial number GS9003-41368) ......................................................... 5 - 10
Section 6 Rev Schematics
Introduction .................................................................................................. 6 - 1
A Electronic Control Module Layout
(before serial number GS9003-41523) ........................................................ 6 - 2
A Electronic Control Module Pin-Out Legend
(before serial number 41523) ....................................................................... 6 - 3
A Electronic Control Module Layout
(after serial number GS9003-41522) ........................................................... 6 - 4
A Electronic Control Module Pin-Out Legend
(after serial number GS9003-41522) ........................................................... 6 - 5
B Ford Engine Relay Layout ........................................................................... 6 - 6
A Wiring Diagram - Platform Control Box
(before serial number GS9003-41523) ........................................................ 6 - 7
A Wiring Diagram - Platform Control Box
(after serial number GS9003-41522) ........................................................... 6 - 8
A Electrical Schematics Abbreviation and Wire Color Legends ....................... 6 - 9
B Limit Switch Legend ................................................................................... 6 - 10
A Electrical Symbols Legend......................................................................... 6 - 12
A Electrical Schematic - Platform Overload (option)
(before serial number GS9003-41523) ...................................................... 6 - 13

June 2008
Part No. 72863 GS-3390 • GS-4390 • GS-5390
TABLE OF CONTENTS
xiii
Section 6 Rev Schematics, continued
B Wiring Harness - Ford LRG-425 EFI
(before serial number GS9003-41369) ...................................................... 6 - 14
A Wiring Harness - Ford LRG-425 EFI
(from serial number GS9003-41369 to GS9004-41693) ............................ 6 - 16
A Wiring Harness - Ford LRG-425 EFI
(after serial number GS9004-41693) ......................................................... 6 - 18
F Electrical Schematic - Ford Models
(before serial number 40428) ..................................................................... 6 - 20
E Electrical Schematic - Ford Models
(from serial number 40428 to 40793) ......................................................... 6 - 24
D Electrical Schematic - Ford Models
(from serial number 40794 to 40995) ......................................................... 6 - 28
B Electrical Schematic - Ford Models
(from serial number 40996 to 41065) ......................................................... 6 - 32
B Electrical Schematic - Ford Models
(from serial number 41066 to GS9003-41368) ........................................... 6 - 36
B Electrical Schematic - Ford Models
(from serial number GS9003-41369 to GS9003-41522) ............................ 6 - 40
D Electrical Schematic - ANSI Models with Ford Power
(from serial number GS9003-41523 to GS9004-41693) ............................ 6 - 44
D Electrical Schematic - ANSI Models with Ford Power
(from serial number GS9004-41694 to GS9005-42143) ............................ 6 - 48
C Electrical Schematic - ANSI Models with Ford Power
(from serial number GS9005-42144 to GS9005-42203) ............................ 6 - 52
B Electrical Schematic - ANSI Models with Ford Power
(from serial number GS9005-42204 to GS9005-42685) ............................ 6 - 56
D Electrical Schematic - CE Models with Ford Power
(from serial number GS9003-41523 to GS9004-41693) ............................ 6 - 60
D Electrical Schematic - CE Models with Ford Power
(from serial number GS9004-41694 to GS9005-42143) ............................ 6 - 64
D Electrical Schematic - CE Models with Ford Power
(from serial number GS9005-42144 to 42203) ........................................... 6 - 68
C Electrical Schematic - CE Models with Ford Power
(from serial number GS9005-42204 to 42411) .......................................... 6 - 72
C Electrical Schematic - CE Models with Ford Power
(from serial number GS9005-42412 to GS9005-42685) ............................ 6 - 76

July 2007
GS-3390 • GS-4390 • GS-5390 Part No. 72863
TABLE OF CONTENTS
xiv
Section 6 Rev Schematics, continued
D Electrical Schematic - Deutz Models
(before serial number 40428) ..................................................................... 6 - 80
E Electrical Schematic - Deutz Models
(from serial number 40428 to 40737) ......................................................... 6 - 84
F Electrical Schematic - Deutz Models
(from serial number 40738 to 40941) ......................................................... 6 - 88
C Electrical Schematic - Deutz Models
(from serial number 40942 to 41065) ......................................................... 6 - 92
B Electrical Schematic - Deutz Models
(from serial number 41066 to GS9003-41350) ........................................... 6 - 96
B Electrical Schematic - Deutz Models
(from serial number GS9003-41351 to 41522) ......................................... 6 - 100
D Electrical Schematic - ANSI Models with Deutz Power
(from serial number GS9003-41523 to GS9005-42143) .......................... 6 - 104
C Electrical Schematic - ANSI Models with Deutz Power
(from serial number GS9005-42144 to GS9005-42685) .......................... 6 - 108
D Electrical Schematic - CE Models with Deutz Power
(from serial number GS9003-41523 to GS9005-42143) .......................... 6 - 112
C Electrical Schematic - CE Models with Deutz Power
(from serial number GS9005-42144 to 42411) ......................................... 6 - 116
B Electrical Schematic - CE Models with Deutz Power
(from serial number GS9005-42412 to GS9005-42685) .......................... 6 - 120
A Hydraulic Schematics Component Call-out Legend ................................. 6 - 124
A Hydraulic Symbols Legend ...................................................................... 6 - 125
F Hydraulic Schematic
(before serial number 40519) ................................................................... 6 - 126
J Hydraulic Schematic
(from serial number 40519 to GS9004-41690) ......................................... 6 - 128
D Hydraulic Schematic
(from serial number GS9004-41691 to GS9005-42685) .......................... 6 - 130

REV G
Section 2 • SpecificationsJuly 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390 2 - 1
Specifications
Machine Specifications
Fluid capacities
Hydraulic tank 32 gallons
121 liters
Hydraulic system with outriggers 37.5 gallons
(including tank), GS-3390 142 liters
Hydraulic system with outriggers 38.25 gallons
(including tank), GS-4390 144.8 liters
Hydraulic system with outriggers 38.75 gallons
(including tank), GS-5390 146.7 liters
Hydraulic system without outriggers 34.25 gallons
(including tank), GS-3390 129.6 liters
Hydraulic system without outriggers 35 gallons
(including tank), GS-4390 132.5 liters
Fuel tank 30 gallons
114 liters
Rated work load at full height, maximum
GS-3390 2500 lbs
1135 kg
GS-4390 1500 lbs
(most models - refer to capacity indicator decal) 680 kg
GS-4390 1800 lbs
(some models - refer to capacity indicator decal) 816 kg
GS-5390 1500 lbs
680 kg
Tire and wheels
Wheel lugs 9 @ 5/8-18
Lug nut torque, dry 125 ft-lbs
169.5 Nm
Lug nut torque, lubricated 94 ft-lbs
127.4 Nm
For operational specifications, refer to the
Operator's Manual.
Rough Terrain, foam-filled
Tire size LSW 305-546 NHS
Tire ply rating 10
Tire contact area 36 sq in
232.3 cm2
Tire diameter 33 in
83.8 cm
Tire width 12 in
30 cm
Wheel diameter 21.5 in
55 cm
Wheel width 10 in
25.4 cm
Weight 257 lbs (+/-10 lbs)
116.6 kg (+/-4.5 kg)
High Flotation, air-filled and foam-filled
Tire size 33/16LL500
Tire ply rating 10
Tire contact area 48 sq in
309.7 cm2
Tire diameter 33 in
83.8 cm
Tire width 16 in
41 cm
Wheel diameter 19.5 in
49.5 cm
Wheel width 14 in
35.6 cm
Weight, foam-filled 419 lbs (+/-10 lbs)
190 kg (+/-4.5 kg)
Weight, air-filled 157 lbs
71.2 kg
Pressure, air-filled 38 psi
2.6 bar
Continuous improvement of our products is a
Genie policy. Product specifications are
subject to change without notice.

REV G
Section 2 • Specifications July 2007
2 - 2 GS-3390 • GS-4390 • GS-5390 Part No. 72863
Hydraulic Specifications
Hydraulic Oil Specifications
Before serial number GS9003-41223
Hydraulic oil type Shell Donax TG (Dexron III)
After serial number GS9003-41222
Hydraulic oil type Chevron Rykon MV equivalent
ISO viscosity grade Multi-viscosity
Viscosity index 200
Cleanliness level, minimum 15/13
Water content, maximum 200 ppm
Chevron Rykon MV oil is fully compatible and
mixable with Shell Donax TG (Dexron III) oils.
Genie specifications require hydraulic oils which are
designed to give maximum protection to hydraulic
systems, have the ability to perform over a wide
temperature range, and the viscosity index should
exceed 140. They should provide excellent antiwear,
oxidation, corrosion inhibition, seal conditioning, and
foam and aeration suppression properties.
Performance Specifications
Drive speed, maximum
Platform stowed 5 mph
40 ft / 5.5 sec
8 km/h
12.2 m / 5.5 sec
Platform raised 0.7 mph
40 ft / 39 sec
1.13 km/h
12.2 m / 39 sec
Gradeability
GS-3390 and GS-4390 50%
GS-5390 40%
Airborne noise emissions 80 dB
Maximum sound level at normal operation workstations
(A-weighted)
Function speed, maximum from platform controls
(with maximum rated load in platform)
GS-3390
Platform up 42 to 52 seconds
Platform down 25 to 35 seconds
GS-4390
Platform up 50 to 60 seconds
Platform down 32 to 42 seconds
GS-5390
Platform up 70 to 90 seconds
Platform down 42 to 52 seconds
Braking distance, maximum
High range on paved surface 60 inches
15.24 cm
Continuous improvement of our products is a
Genie policy. Product specifications are
subject to change without notice.
SPECIFICATIONS

REV G
Section 2 • SpecificationsJuly 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390 2 - 3
SPECIFICATIONS
Optional fluids
Biodegradable Petro Canada Environ MV 46
Statoil Hydra Way Bio Pa 32
BP Biohyd SE-S
Fire resistant UCON Hydrolube HP-5046
Quintolubric 822
Mineral based Shell Tellus T32
Shell Tellus T46
Chevron Aviation A
Continued use of Chevron
Aviation A hydraulic fluid when
ambient temperatures are
consistently above 32°F / 0°C may
result in component damage.
Note: Use Chevron Aviation A hydraulic fluid when
ambient temperatures are consistently below
0°F / -17°C.
Note: Use Shell Tellus T46 hydraulic oil when oil
temperatures consistently exceed 205°F / 96°C.
Note: Genie specifications require additional
equipment and special installation instructions for
the approved optional fluids. Consult the Genie
Industries Service Department before
use.Department before use.
Hydraulic Components
Specifications
Drive pump
Type: Bi-directional, variable displacement piston pump
Flow rate @ 2500 rpm 0 to 30 gpm
(before serial number GS9004-41619) 0 to 113.6 L/min
Flow rate @ 2500 rpm 0 to 32.5 gpm
(after serial number GS9004-41618) 0 to 123 L/min
Drive pressure, maximum 3500 psi
(before serial number GS9004-41619) 241 bar
Drive pressure, maximum 3750 psi
(after serial number GS9004-41618) 258.6 bar
Charge pump
Type: Gerotor
Flow rate @ 2500 rpm 6.5 gpm
(before serial number GS9004-41619) 24.6 L/min
Flow rate @ 2500 rpm 9.1 gpm
(after serial number GS9004-41618) 34.4 L/min
Charge pump pressure 360 psi
(before serial number GS9004-41619) 24.8 bar
Charge pump pressure 325 psi
(after serial number GS9004-41618) 22.4 bar
Function pump
Type: Gear
Displacement 1.025 cu in
(before serial number GS9004-41619) 16.8 cc
Displacement 0.98 cu in
(after serial number GS9004-41618) 16 cc
Flow rate @ 2500 rpm 10.8 gpm
(before serial number GS9004-41619) 40.9 L/min
Flow rate @ 2500 rpm 10.6 gpm
(after serial number GS9004-41618) 40.1 L/min
Hydraulic tank 10 micron with
return line filter 25 psi / 1.7 bar bypass
Continuous improvement of our products is a
Genie policy. Product specifications are
subject to change without notice.

REV G
Section 2 • Specifications July 2007
2 - 4 GS-3390 • GS-4390 • GS-5390 Part No. 72863
SPECIFICATIONS
Auxiliary power unit
Relief valve 2000 psi
137.9 bar
Function manifold
System relief valve pressure, 2700 to 2900 psi
GS-3390 186 to 200 bar
System relief valve pressure, 2900 to 3100 psi
GS-43390 and GS-5390 200 to 214 bar
Steer relief valve pressure 2000 psi
(before serial number 40519) 138 bar
Steer flow regulator 2.5 gpm
(before serial number 40519) 9.5 L/min
Proportional valve flow regulator 0.1 gpm
(after serial number 40518) 0.38 L/min
Oscillate manifold
System relief valve pressure 3500 psi
241 bar
Float relief valve pressure 900 psi
62 bar
Oscillate flow regulator 1 gpm
3.8 L/min
Drive manifold
Hot oil relief pressure 300 psi
(before serial number GS9004-41619) 20.7 bar
Hot oil relief pressure 280 psi
(after serial number GS9004-41618) 19.3 bar
Generator manifold (option)
Relief valve 3000 psi
207 bar
Flow rate, maximum 4.5 gpm
17 L/min
Drive hubs
Fluid capacity 17 fl oz
(before serial number GS9004-41619) 0.5 liters
Fluid capacity 26 fl oz
(after serial number GS9004-41618) 0.77 liters
Fluid type: SAE 90 multipurpose hypoid gear oil
API service classification GL5
Continuous improvement of our products is a
Genie policy. Product specifications are
subject to change without notice.

REV G
Section 2 • SpecificationsJuly 2007
Part No. 72863 GS-3390 • GS-4390 • GS-5390 2 - 5
SPECIFICATIONS
Manifold Component
Specifications
Plug torque
SAE No. 2 50 in-lbs / 6 Nm
SAE No. 4 13 ft-lbs / 18 Nm
SAE No. 6 18 ft-lbs / 24 Nm
SAE No. 8 50 ft-lbs / 68 Nm
SAE No. 10 55 ft-lbs / 75 Nm
SAE No. 12 75 ft-lbs / 102 Nm
Valve Coil Resistance
Specifications
Note: The following coil resistance specifications
are at an ambient temperature of 68°F / 20°C. As
valve coil resistance is sensitive to changes in air
temperature, the coil resistance will typically
increase or decrease by 4% for each 18°F / 20°C
that your air temperature increases or decreases
from 68°F / 20°C.
Description Specification
Solenoid valve, 3 position 4 way 8.2 to 10.2Ω
10V DC with diode (schematic item G)
Proportional valve, 12V DC 3.1 to 5.1Ω
(schematic items H, AD)
DO3 valve, 3 position 4 way, 10V DC 2.6 to 4.6Ω
(schematic items I, J, AG and AK)
Solenoid valve, 3 position 4 way 6.2 to 8.2Ω
10V DC with diode (schematic item AH)
Solenoid valve, 2 position 2 way 5.7 to 7.7Ω
10V DC with diode (schematic items BA and BB)
Solenoid valve, 2 position 3 way 10V 8.2 to 10.2Ω
(schematic items BI and BJ)
Solenoid valve, 2 position 2 way 10V DC 4.5 to 6.5Ω
(schematic items CA, CB, CC and CD)
Solenoid valve, 2 position 3 way 5 to 7Ω
10V DC (schematic item AL)
Solenoid valve, 2 position 2 way 6.5 to 8.5Ω
12V DC with diode (schematic item DA)
Solenoid valve, 2 position 3 way 9 to 11Ω
12V DC with diode (schematic items DE and DF)
Solenoid valve, 2 position 2 way 9 to 11Ω
12V DC with diode (schematic item DG)
Solenoid valve, 2 position 3 way 6 to 8Ω
10V DC with diode (schematic items EF and EJ)
Continuous improvement of our products is a
Genie policy. Product specifications are
subject to change without notice.

REV G
Section 2 • Specifications July 2007
2 - 6 GS-3390 • GS-4390 • GS-5390 Part No. 72863
Ford LRG-425 EFI Engine
Displacement 153 cu in
2.5 liters
Number of cylinders 4
Bore & stroke 3.78 x 3.4 inches
96.01 x 86.36 mm
Horsepower 70 @ 2500 rpm
52 kw @ 2500 rpm
Firing order 1 - 3 - 4 - 2
Low idle (computer controlled) 1600 rpm
320 Hz
High idle (computer controlled) 2500 rpm
500 Hz
Compression ratio 9.4:1
Compression pressure (approx.)
Pressure (psi or bar) of lowest cylinder must be
at least 75% of highest cylinder
Valve clearances - 0.035 to 0.055 inches
collapsed tappet 0.889 to 1.397 mm
Lubrication system
Oil pressure 40 to 60 psi
(operating temperature @ 2500 rpm) 2.75 to 4.1 bar
Oil capacity 4.5 quarts
(including filter) 4.3 liters
Oil viscosity requirements
Units ship with 15W-40.
Extreme operating temperatures may require the use of
alternative engine oils. For oil requirements, refer to the
EngienOperator Handbook on your machine.
Ignition system
Spark plug type Motorcraft AWSF-52-C
(before serial number GS9004-41694)
Spark plug type Motorcraft AGSF-32-FM
(after serial number GS9004-41693)
Spark plug gap 0.042 to 0.046 inches
1.07 to 1.17 mm
Engine coolant
Capacity 11.5 quarts
10.9 liters
Starter motor
Normal engine cranking speed 200 to 250 rpm
Current draw, normal load 140-200A
Current draw, maximum load 800A
Circuit voltage drop 0.5V DC
while starting, maximum (normal temperature)
Brush length, minimum 0.25 in
6.35 mm
Commutator run-out, maximum 0.005 inches
0.127 mm
Electronic fuel pump
Fuel pressure, static 63 psi
4.3 bar
Fuel flow rate 0.58 gpm
2.2 L/min
Alternator
Output 95A, 14.5V DC
Battery (before serial number 40516)
Type 12V DC
Group 34/78
Quantity 1
Cold cranking ampere 900A
Reserve capacity @ 25A rate 125 minutes
Battery (after serial number 40515)
Type 12V DC
Group 31
Quantity 1
Cold cranking ampere @ 0°F 1000A
Reserve capacity @ 25A rate 200 minutes
SPECIFICATIONS