Genie GS-2046 User manual

First Edition, Third Printing
Rev C2
Part No. 48339
GS-3246
GS-2646
GS-2046
Technical
Publications
®
Service
Manual
(before serial number 17408)

Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Service Manual - First Edition
ii
Introduction
Genie North America
Telephone [phone]
Toll Free 800 536-1800 in U.S.A.
Toll Free 800 426-8089 in Canada
Fax [phone]
http://www.genielift.com
E-mail: [email protected]
Genie Europe
Telephone [phone]
Fax [phone]
http://www.genielift.com
E-mail: [email protected]
Important
Read, understand and obey the safety rules and
operating instructions in the Genie GS-2032 &
Genie GS-2046 & Genie GS-2646 & Genie
GS-3246 Operator's Manual 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.
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 other manuals. Please
write to the technical publications team in care of
Genie Industries, PO Box 97030, Redmond WA
98073-9730 USA.
If you have any questions, please call Genie
Industries.
®
Copyright © 1997 by Genie Industries
First Edition: First Printing, December 1997
Second Printing, April 1999
Third Printing,October 1999
"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.
GS-324
6
GS-2646
GS-204
6

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246
Service Manual - First Edition
iii
Danger
Failure to obey the instructions and safety rules
in this manual and the Genie GS-2032 & Genie
GS-2046 & Genie GS-2646 & Genie GS-3246
Operator's Manual
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

Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Service Manual - First Edition
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.
Red—used to indicate the
presence of an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
Orange—used to indicate the
presence of a potentially
hazardous situation which, if not
avoided, could result in death or
serious injury.
Yellow with safety alert symbol—
used to indicate the presence of a
potentially hazardous situation
which, if not avoided, may cause
minor or moderate injury.
Yellow without safety alert
symbol—used to indicate the
presence of a potentially
hazardous situation which, if not
avoided, may result in property
damage.
Green—used to indicate operation
or maintenance information.
iv
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 that your workshop or work area
is properly ventilated and well lit.
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.

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246
Service Manual - First Edition
v
Theory of Operation
Power Source
The Genie GS-2046 & Genie GS-2646 & Genie
GS-3246 machines are powered by four six-volt
(225 AH) batteries. The four batteries are wired in
series to produce 24 volts.
Hydraulic System
All machine functions are performed by the
hydraulic system. The hydraulic system is
powered by a single-section gear pump. When the
pump is activated, it supplies hydraulic fluid under
pressure to the function manifold, where the
control valves are located. To protect from over-
pressurization of the hydraulic system, the pump
is provided with a pressure relief valve.
Activating a machine function is accomplished by
actuating or moving a switch and/or control
handle, which sends voltage to the ECM. The
ECM then sends the signal to the appropriate
directional control valve. The directional valve
determines which direction the hydraulic fluid will
travel. Computer software determines the volume
of fluid in relation to the proportional valve input
voltage.
Electrical System
Limit switches are found in various locations on
the machine. The function of a limit switch is to
communicate the operating position of the
machine to the ECM (Electronic Control Module).
When a change in signal is received from a limit
switch, the ECM responds by limiting the drive
speed to 0.5 miles per hour (0.8 km/h), according
to the default settings in the ECM software.
Machine Controls
The GS-2046 & GS-2646 & GS-3246 machines
are equipped with operational controls which are
found in two locations: the ground controls,
located on the hydraulic tank side of the machine,
and the platform controls, located in the platform.
All lift and drive functions are available at the
platform controls. Only platform up/down functions
are available at the ground controls.
The ECM uses input from the ground or platform
controls to activate the various machine functions.
The ECM has predetermined settings for the
various machine functions.
The joystick is fitted with a 5000 ohm
potentiometer. With the joystick in the neutral
position, the potentiometer will measure 2730
ohms. These signals are sent to the multiplex
card, then down to the ECM to control the voltage
supplied to the proportional valve. Two
microswitches mounted on the joystick tell the
ECM the drive direction desired. A thumb rocker
switch on the top of the joystick is used for
steering.
Mounted on the platform control box lid of
machines before serial number 17408 are buttons
and a switch that, when activated, sends a signal
to the ECM through the multiplex card. On
machines after serial number 17407, the platform
control box lid has a decal/membrane pad. This is
a touch-activated pad incorporating wiring,
switches and LEDs that are resistant to the
environment. Activating any of the buttons on the

Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Service Manual - First Edition
vi
THEORY OF OPERATION
pad will send a signal to the ECM through the
multiplex card.
A diagnostic display is located at the battery pack
side of the machine to aid in troubleshooting. If the
machine malfunctions, a fault code will be shown
in the display window.
Washing electronic components is not suggested.
Instead, use compressed air to remove debris
from these components.
Component damage hazard.
Avoid shock or impact to the
ECM. Internal damage may not be
visible from the outside.

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246
Service Manual - First Edition
Table of Contents
vii
Introduction
Important Information ..................................................................................................... ii
Section One Safety Rules
General Safety Rules .................................................................................................... iii
Section Two Specifications
Machine Specifications, GS-2046 ............................................................................ 2 - 1
Machine Specifications, GS-2646 ............................................................................ 2 - 2
Machine Specifications, GS-3246 ............................................................................ 2 - 3
Performance Specifications, All Models ................................................................... 2 - 4
Hydraulic Specifications, All Models ......................................................................... 2 - 4
Hydraulic Hose and Fitting Torque Specifications .................................................... 2 - 5
Section Three Scheduled Maintenance Inspections
Introduction............................................................................................................... 3 - 1
Table A ..................................................................................................................... 3 - 2
Table B ..................................................................................................................... 3 - 2
Table C ..................................................................................................................... 3 - 3
Table D ..................................................................................................................... 3 - 3
Maintenance Inspection Report ................................................................................ 3 - 4
Section Four Scheduled Maintenance Procedures
Introduction............................................................................................................... 4 - 1
A-1 Inspect the Operator’s and Safety Manuals .................................................... 4 - 2
A-2 Inspect the Decals and Placards .................................................................... 4 - 2
A-3 Inspect for Damage, and Loose or Missing Parts ........................................... 4 - 3
A-4 Check the Hydraulic Oil Level ......................................................................... 4 - 4
A-5 Check for Hydraulic Leaks .............................................................................. 4 - 4

Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Service Manual - First Edition
TABLE OF CONTENTS
viii
Section Four Scheduled Maintenance Procedures, continued
A-6 Test the Platform and Ground Controls .......................................................... 4 - 5
A-7 Test the Manual Platform Lowering Operation ............................................... 4 - 6
A-8 Test the Tilt Sensor ........................................................................................ 4 - 6
A-9 Test the Pothole Guards ................................................................................. 4 - 7
A-10 Test the Lift/Drive Select Switch ..................................................................... 4 - 7
A-11 Perform 30 Day Service .................................................................................. 4 - 8
B-1 Check the Batteries ........................................................................................ 4 - 9
B-2 Inspect the Electrical Wiring .......................................................................... 4 - 10
B-3 Inspect the Tires and Wheels (including castle nut torque) ............................ 4 - 11
B-4 Test the Key Switch ...................................................................................... 4 - 11
B-5 Test the Emergency Stop Buttons................................................................. 4 - 12
B-6 Test the Service Horn.................................................................................... 4 - 12
B-7 Test the Drive Brakes.................................................................................... 4 - 13
B-8 Test the Drive Speed - Stowed Position ........................................................ 4 - 15
B-9 Test the Drive Speed - Raised Position ......................................................... 4 - 15
B-10 Perform Hydraulic Oil Analysis ...................................................................... 4 - 16
B-11 Check the Electrical Contactor ...................................................................... 4 - 16
B-12 Replace the Hydraulic Return Filter ............................................................... 4 - 17
C-1 Check the Module Tray Latch Components ................................................... 4 - 18
D-1 Test or Replace the Hydraulic Oil .................................................................. 4 - 19

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246
Service Manual - First Edition
TABLE OF CONTENTS
ix
Section Five Troubleshooting Flow Charts and Fault Codes
Chart
Number Chart Title Page
Fault Code Chart (Before Serial Number 17408) ..................................................... 5 - 3
Normal Operation Code Chart (Before Serial Number 17408) ................................. 5 - 6
Fault Code Chart (After Serial Number 17407) ........................................................ 5 - 8
1 All Functions Will Not Operate ................................................................................. 5 - 9
2 Pump Motor Will Not Operate ................................................................................ 5 - 12
3 Pump Motor Will Not Operate
After serial number 6900 ........................................................................................ 5 - 14
4 All Functions Inoperative, Power Unit Starts and Runs
(No applicable code) ............................................................................................... 5 - 16
5 Ground Controls Inoperative, Platform Controls Operate Normally
(No applicable code) ............................................................................................... 5 - 17
6 Platform Controls Inoperative, Ground Controls Operate Normally
(No applicable code) ............................................................................................... 5 - 18
7 Platform Up Function Inoperative ........................................................................... 5 - 20
8 Platform Down Function Inoperative
GS-2046 & GS-2646 Models .................................................................................. 5 - 21
9 Platform Down Function Inoperative
GS-3246 Models .................................................................................................... 5 - 23
10 Steer Left Function Inoperative .............................................................................. 5 - 25
11 Steer Right Function Inoperative ............................................................................ 5 - 27
12 All Drive Functions Inoperative, All Other Functions Operate Normally ................. 5 - 29
13 Brake Release Function Inoperative ...................................................................... 5 - 31
14 Drive Forward Function Inoperatmive .................................................................... 5 - 32

Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Service Manual - First Edition
TABLE OF CONTENTS
x
Section Five Troubleshooting Flow Charts and Fault Codes, continued
15 Drive Reverse Function Inoperative ....................................................................... 5 - 33
16 Machine Will Not Drive At Full Speed..................................................................... 5 - 34
17 Machine Drives At Full Speed With Platform Raised ............................................. 5 - 36
18 Manual Platform Lowering Function Inoperative
GS-2046 & GS-2646 (No applicable code)............................................................ 5 - 37
19 Manual Platform Lowering Function Inoperative
GS-3246 (No applicable code) ............................................................................... 5 - 38
20 Drive Function Overspeeds While Driving Down an Incline
GS-3246 Models (No applicable code) ................................................................... 5 - 39
21 Drive Function Hesitates While Steering
GS-3246 Models (No applicable code) ................................................................... 5 - 40
Section Six Schematics
Introduction............................................................................................................... 6 - 1
Electrical Components.............................................................................................. 6 - 2
Module Tray Legend (Before serial number 6901) ................................................... 6 - 4
Module Tray Legend (After serial number 6900) ...................................................... 6 - 5
Electrical Symbols Legend ....................................................................................... 6 - 6
Electrical Schematic (Before serial number 6901) .................................................... 6 - 7
Electrical Schematic (From serial number 6901 to 8931) ......................................... 6 - 9
Electrical Schematic (From serial number 8932 to 17407) ..................................... 6 - 11
Electrical Schematic (After serial number 17407)................................................... 6 - 13
Ground Controls and Level Sensor Box Legend .................................................... 6 - 15
Platform Controls Legend (Before serial number 17408) ....................................... 6 - 16
Platform Controls Legend (After serial number 17407) .......................................... 6 - 17
Hydraulic Symbols Legend ..................................................................................... 6 - 18
Hydraulic Schematic (Before serial number 17482) ............................................... 6 - 19
Hydraulic Schematic (After serial number 17481) .................................................. 6 - 20

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246
Service Manual - First Edition
TABLE OF CONTENTS
Section Seven Repair Procedures
Introduction............................................................................................................... 7 - 1
Platform Controls
1-1 Joystick Controller .......................................................................................... 7 - 2
1-2 Software Configuration ................................................................................... 7 - 3
1-3 How to Set the Dip Switch Codes .................................................................. 7 - 4
1-4 Toggle Switches ............................................................................................. 7 - 6
Platform Components
2-1 Platform .......................................................................................................... 7 - 7
2-2 Platform Extension.......................................................................................... 7 - 8
Scissor Components
3-1 Scissor Assembly, GS-2046 ......................................................................... 7 - 11
3-2 Scissor Assembly, GS-2646 ......................................................................... 7 - 17
3-3 Scissor Assembly, GS-3246 ......................................................................... 7 - 25
3-4 Lift Cylinder ................................................................................................... 7 - 32
Ground Controls
4-1 Manual Platform Lowering Cable, GS-2046 & GS-2646 ............................... 7 - 35
4-2 Manual Platfrom Lowering, GS-3246 ............................................................ 7 - 36
4-3 Toggle Switches, See 1-2, Toggle Switches................................................. 7 - 36
Hydraulic Pump
5-1 Hydraulic Pump ............................................................................................ 7 - 36
Manifolds
6-1 Function Manifold Components (Before serial number 11501) ..................... 7 - 38
6-2 Function Manifold Components (After serial number 11500) ........................ 7 - 40
6-3 Valve Adjustments - Function Manifold......................................................... 7 - 42
6-4 Valve Adjustments - Lift Relief Valve, GS-3246 ........................................... 7 - 44
6-5 Valve Adjustments - Back Pressure Relief Valve ......................................... 7 - 45
xi

Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Service Manual - First Edition
Section Seven Repair Procedures, continued
Steering Axle Components
7-1 Yoke and Drive Motor ................................................................................... 7 - 46
7-2 Steering Cylinder .......................................................................................... 7 - 48
7-3 Steering Bellcrank ......................................................................................... 7 - 48
Non-steering Axle Components
8-1 Drive Brake ................................................................................................... 7 - 49
Brake Release Hand Pump Components
9-1 Brake Release Hand Pump .......................................................................... 7 - 50
xii

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 2 - 1
Section 2 - SpecificationsService Manual - First Edition
Specifications
Machine Specifications -
GS-2046
Stowed dimensions
Length 96 in 243.8 cm
Length, platform extended 1351/2in 344.1 cm
Width 46 in 116.8 cm
Models with sliding rails
Height, stowed maximun 781/2in 199.4 cm
Rails up - ANSI & CSA
Height, stowed maximum 827/8in 210.4 cm
Rails up - CE
Height, stowed maximum 713/4in 182.25 cm
Rails lowered
Height, stowed maximum 391/4in 99.7 cm
Rails removed
Height, guard rails - ANSI & CSA 39 in 99.1 cm
Height, guard rails - CE 42 1/2in 110.2 cm
Models with folding rails
Height, stowed maximum 861/8in 219 cm
Height stowed maximum 643/4in 164 cm
Rails folded
Platform height, 423/8in 107.6 cm
Stowed maximum
Operational dimensions
Maximum platform height 26 ft 7.9 m
Maximum platform working height 20 ft 6.1 m
Maximum platform extension 39 in 99 cm
Wheelbase 72 7/8in 185.1 cm
Turning radius, outside 91 3/4in 233.1 cm
Turning radius, inside 0 in 0 cm
Platform dimensions
Length 89 in 226 cm
Width 453/4in 116 cm
Extension length 39 in 99 cm
Maximum load capacity 1200 lbs 544 kg
All Models
Weight 4324 lbs 1961 kg
Ground clearance 4 in 10.2 cm
Pothole guards deployed 7/8in 2.2 cm
Tires and wheels
Tire size (solid rubber) 15 x 5 x 11 1/4in
38.1 x 12.7 x 28.6 cm
Load range 2,400 lbs 1,089 kg
Tire contact area 9 sq in 58 sq cm
Overall tire diameter 15 in 38.1 cm
Wheel diameter 111/4in 28.6 cm
Wheel width 5 in 12.7 cm
Castle nut torque 300 ft-lbs 406.7 Nm
Fluid Capacities
Hydraulic tank capacity 51/2gallons 20.8 liters
Hydraulic system capacity 6 gallons 22.7 liters
(including tank)
Continuous improvement of our products is a
Genie policy. Product specifications are subject to
change without notice.

2 - 2 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Section 2 - Specifications Service Manual - First Edition
SPECIFICATIONS
Machine Specifications -
GS-2646
Stowed dimensions
Length 96 in 243.8 cm
Length, platform extended 135 1/2in 344.1 cm
Width 46 in 116.8 cm
Models with sliding rails
Height - stowed maximum 85 1/2in 217.2 cm
Rails up - ANSI & CSA
Height - stowed maximum 897/8in 228.3 cm
Rails up - CE
Height - stowed maximum 851/2in 217.2 cm
Rails lowered
Height , stowed maximum 46 1/8in 117.2 cm
Rails removed
Height, guard rails - ANSI & CSA 39 in 99.1 cm
Height, guard rails - CE 431/2in 110.2 cm
Models with folding rails
Height, stowed maximum 897/8in 228 cm
Height, stowed maximum 681/8in 173 cm
Rails folded
Platform height, 46 1/8in 117.2 cm
Stowed maximum
Operational dimensions
Maximum platform height 26 ft 7.9 m
Maximum platform working height 32 ft 9.8 m
Maximum platform extension 39 in 99 cm
Wheelbase 72 7/8 in 185.1 cm
Turning radius, outside 91 3/4in 233.1 cm
Turning radius, inside 0 in 0 cm
Platform dimensions
Length 89 in 226 cm
Width 45 3/4in 116 cm
Extension length 39 in 99 cm
Maximum load capacity 1000 lbs 454 kg
All Models
Weight 4646 lbs 2107 kg
Ground clearance 4 in 10.2 cm
Pothole guards deployed 7/8in 2.2 cm
Tires and wheels
Tire size (solid rubber) 15 x 5 x 11 1/4in
38.1 x 12.7 x 28.6 cm
Load range 2,400 lbs 1,089 kg
Tire contact area 10 sq in 64.5 sq cm
Overall tire diameter 15 in 38.1 cm
Wheel diameter 11 1/4in 28.6 cm
Wheel width 5 in 12.7 cm
Castle nut torque 300 ft-lbs 406.7 Nm
Fluid Capacities
Hydraulic tank capacity 51/2gallons 20.8 liters
Hydraulic system capacity 6 gallons 22.7 liters
(including tank)
Continuous improvement of our products is a
Genie policy. Product specifications are subject to
change without notice.

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 2 - 3
Section 2 - SpecificationsService Manual - First Edition
Machine Specifications -
GS-3246
Stowed dimensions
Length 96 in 243.8 cm
Length, platform extended 135 1/2in 344.2 cm
Width 46 in 116.8 cm
Models with sliding rails
Height - stowed maximum 90 1/2in 229.9 cm
Rails up - ANSI & CSA
Height - stowed maximum 95 in 241 cm
Rails up - CE
Height, stowed maximum 833/4 in 212.7 cm
Rails lowered
Height - stowed maximum 511/4in 130.2 cm
Rails removed
Height, guard rails - ANSI & CSA 39 in 99.1 cm
Height, guard rails - CE 431/2in 110.2 cm
Models with folding rails
Height, stowed maximum 95 in 241 cm
Height, stowed maximum 733/8 in 186 cm
Rails folded
Platform height 511/4in 130.2 cm
Stowed maximum
Operational dimensions
Maximum platform height 32 ft 11.75 m
Maximum platform working height 38 ft 11.6 m
Maximum platform extension 39 in 99 cm
Wheelbase 72 7/8in 185.1 cm
Turning radius, outside 91 3/4in 233.1 cm
Turning radius, inside 0 in 0 cm
SPECIFICATIONS
Platform dimensions
Length 89 in 226 cm
Width 45 3/4in 116 cm
Extension length 39 in 99 cm
Maximum load capacity 1000 lbs 454 kg
All Models
Weight 5564 lbs 2524 kg
Ground clearance 4 in 10.2 cm
Pothole guards deployed 7/8in 2.2 cm
Tires and wheels
Tire size (solid rubber) 15 x 5 x 11 1/4in
38.1 x 12.7 x 28.6 cm
Load range 2,400 lbs 1,089 kg
Tire contact area 10 sq in 64.5 sq cm
Overall tire diameter 15 in 38.1 cm
Wheel diameter 11
1/4in 28.6 cm
Wheel width 5 in 12.7 cm
Castle nut torque 300 ft-lbs 406.7 Nm
Fluid Capacities
Hydraulic tank capacity 51/2gallons 20.8 liters
Hydraulic system capacity 6 gallons 22.7 liters
(including tank)
Continuous improvement of our products is a
Genie policy. Product specifications are subject to
change without notice.

2 - 4 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Section 2 - Specifications Service Manual - First Edition
SPECIFICATIONS
Performance Specifications -
All Models
Drive speeds (maximum)
Stowed, maximum 2.2 mph 3.5 km/h
40 ft/12.4 sec 12.2 m/12.4 sec
Platform raised 0.5 mph 0.8 km/h
40 ft/54.5 sec 12.2 m/54.5 sec
Gradability
GS-2046, GS-2646 30%
GS-3246 25%
Function speeds, maximum
from platform controls
GS-2046
Platform up 28 to 32 seconds
Platform down 26 to 30 seconds
GS-2646
Platform up 28 to 32 seconds
Platform down 26 to 30 seconds
GS-3246
Platform up 55 to 59 seconds
Platform down 38 to 40 seconds
Hydraulic Specifications -
All Models
Hydraulic fluid Dexron equivalent
Lift pump
Type: gear
Displacement
per revolution 0.244 cu in 4 cc
Displacement 4 gallons per minute
15.1 liters per minute
(2500 psi/172 bar)
Hydraulic tank 10 micron with 25 psi
return line filter (1.7 bar) bypass
Function manifold
System relief valve pressure
(GS-2046 & GS-2646 models) 3700 psi 205.1 bar
Drive relief valve pressure
(GS-3246 models) 3700 psi 205.1 bar
Lift relief valve pressure
(GS-3246 models) 2000 psi 137.9 bar
Steer relief valve pressure 1500 psi 103.4 bar

Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 2 - 5
Section 2 - SpecificationsService Manual - First Edition
SPECIFICATIONS
Hydraulic Hose and Fitting Torque Specifications
Your machine is equipped with either 37° flared fittings and hose ends OR Parker Seal-Lok®fittings and
hose ends. Machines that utilize Parker Seal-Lok®hoses and fittings require that the fittings and hose
ends be torqued to specification when they are removed and installed or when new hoses or fittings are
installed. Machines equipped with 37° flared fittings and hose ends do not need to be torqued to these
specifications.
Torque Procedure
1 Replace the O-ring. The O-ring must be
replaced anytime the seal has been broken.
The O-ring cannot be re-used if the fitting or
hose end has been tightened beyond finger
tight.
The O-rings used in the Parker
Seal Lok® fittings and hose ends
are a custom-size O-ring. They
are not a standard SAE size O-
ring. They are available in the O-
ring field service kit (Genie pn.
49612).
2 Lubricate the O-ring before installation.
3 Be sure that the face seal O-ring is seated and
retained properly.
4 Position the tube and nut squarely on the face
seal end of the fitting and tighten the nut finger
tight.
5 Tighten the nut or fitting to the appropriate
torque per given size as shown in the table
above.
6 Operate all machine functions and inspect the
hoses and fittings and related components to
be sure that there are no leaks.
Hydraulic Hose and Fitting Torque Specifications
SAE O-ring Boss Port - tube fitting Seal-Lok® - hose end
SAE Dash
Size
Installing
into... ft. lbs. Nm
SAE Dash
Size ft. lbs. Nm
-4 Aluminum 11 14.9 -4 18 24.4
Steel 16 21.7 -6 27 36.6
-6 Aluminum 23 31.2 -8 40 54.2
Steel 35 47.5 -10 63 85.4
-8 Aluminum 40 54.2 -12 90 122
Steel 60 81.3 -16 120 162.7
-10 Aluminum 69 93.6 -20 140 190
Steel 105 142.4 -24 165 223.7
-12 Aluminum 93 126.1
Steel 140 190
-16 Aluminum 139 188.5
Steel 210 284.7
-20 Aluminum 172 233.2
Steel 260 352.5
-24 Aluminum 208 282
Steel 315 427.1

2 - 6 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Section 2 - Specifications Service Manual - First Edition
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Part No. 48339 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 3 - 1
Section 3 - Scheduled Maintenance InspectionsService Manual - First Edition
Tools
are
required
New
parts
required
Dealer
service
suggested
Scheduled Maintenance Inspections
Observe and Obey:
Maintenance inspections shall be completed by
a person trained and qualified on the
maintenance of this machine.
Scheduled maintenance inspections shall be
completed daily, quarterly, annually and every
2 years as specified on the Maintenance
Inspection Report.
Failure to properly complete each
inspection when required may
cause death, serious injury or
substantial machine damage.
Immediately tag and remove from service a
damaged or malfunctioning machine.
Repair any machine damage or malfunction
before operating machine.
Keep records on all inspections for three years.
A quarterly inspection must be completed for
machines that have been out of service for a
period longer than 3 months.
About This Section
The Schedule
There are four types of maintenance inspections
that must be performed according to a schedule—
daily, quarterly, annual and every two years. To
account for repeated procedures, the
Maintenance
Tables and the Maintenance Inspection Report
have been divided into four subsections—A, B, C,
D. Use the following chart to determine which
group(s) of procedures are required to perform a
scheduled inspection.
Inspection Table or Checklist
Daily A
Quarterly A + B
Annual A + B + C
Two year A + B + C + D
Maintenance Tables
The maintenance tables contained in this section
provide summary information on the specific
physical requirements for each inspection.
Complete step-by-step instructions for each
scheduled maintenance procedure are provided in
section 4, Scheduled Maintenance Procedures .
Maintenance Inspection Report
The maintenance inspection report contains
checklists for each type of scheduled inspection.
Make copies of the Maintenance Inspection
Report to use for each inspection. Store
completed forms for three years.

3 - 2 Genie GS-2046 & Genie GS-2646 & Genie GS-3246 Part No. 48339
Section 3 - Scheduled Maintenance Inspections Service Manual - First Edition
Tools
are
required
New
parts
required
Dealer
service
suggested
Table A
A-1 Inspect the Operator's and Safety Manuals
A-2 Inspect the Decals and Placards
A-3 Inspect for Damage, Loose or Missing Parts
A-4 Check the Hydraulic Oil Level
A-5 Check for Hydraulic Leaks
A-6 Test the Platform and Ground Controls
A-7 Test the Manual Platform Lowering Operation
A-8 Test the Tilt Sensor
A-9 Test the Pothole Guards
A-10 Test the Lift/Drive Select Switch
A-11 Perform 30 Day Service
Table B
B-1 Check the Batteries
B-2 Inspect the Electrical Wiring
B-3 Inspect the Tires and Wheels
(including castle nut torque)
B-4 Test the Key Switch
Maintenance Tables