Terex Genie GS-3369 DC Installation and operating manual

Service and Repair Manual
Serial Number Range
GS™-2669 DC
from GS6912-1300
This manual includes:
Repair procedures
Fault Codes
Electrical and
Hydraulic Schematics
GS™-3369 DC
from GS6916F-7897
to GS6916F-
10499
GS™-4069 DC
from GS69F-10500
to GS69F-
17999
For detailed maintenance
procedures, refer to the
appropriate Maintenance
Manual for your machine.
Part No. 1272220GT
Rev
B
May 2021

Service and Repair Manual May 2021
Introduction
ii GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Introducti on Introduction
Important
Read, understand and obey the safety rules and
operating instructions in the appropriate Operator's
Manual on your machine before attempting any
procedure.
This manual 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.
Compliance
Machine Classification
Group A/Type 3 as defined by ISO 16368
Machine Design Life
Unrestricted with proper operation, inspection and
scheduled maintenance.
Technical Publications
Genie 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:
Internet: www.genielift.com
E-mail: [e-mail]
Find a Manual for this Model
Go to http://www.genielift.com
Use the links to locate Service Manuals,
Maintenance Manuals, Service and Repair
Manuals, Parts Manuals and Operator's Manuals.
Copyright © 2016 by Terex Corporation
1272220GT Rev B, May 2021
First Edition, Second Printing
Genie is a registered trademark of Terex South Dakota, Inc. in
the U.S.A. and many other countries.
“GS” is a trademark of Terex South Dakota, Inc.

May 2021 Service and Repair Manual
Introduction
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC iii
Revision History
Revision Date Section Procedure / Page / Description
A 3/2016 Initial Release
A1 9/2016 Introduction Serial Number Legend
A2 11/2016 Repair 6-1
Schematics Hydraulic and Electrical - add proportional relief circuit
A3 11/2018 Repair 6-2
B 5/2021
Add ending serial break
Reference Examples:
Electronic Version
Click on any content or procedure in the Table of Contents to view
the update.
Section – Repair Procedure, 4-2
Section – Fault Codes, All charts
Section – Schematics, Legends and schematics

Service and Repair Manual May 2021
Introduction
iv GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Serial Number Legend
To August 31, 2016
1 Model
2 Model year
3 Facility code
4 Sequence number
5 Serial label (located inside cover)
6 Serial number (stamped on chassis)
From September 1, 2016
1 Model
2 Facility code
3 Sequence number
4 Serial label (located inside cover)
5 Serial number (stamped on chassis)

May 2021 Service and Repair Manual
Safety Rules
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC v
Section 1 Safety Rules
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.

Service and Repair Manual May 2021
Safety Rules
vi GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
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
perso
nal injury hazards. Obey
all safety messages that follow
this symbol to avoid possible
injury or death.
Indicates a 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 avoid
ed, 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
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.
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 maintai
ned 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 wei
ght 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.

May 2021
Table of Contents
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC vii
Introduction Introduction...........................................................................................................ii
Important Information ............................................................................................. ii
Find a Manual for this Model .................................................................................. ii
Serial Number Legend .......................................................................................... iv
Section 1 Safety Rules..........................................................................................................v
General Safety Rules ............................................................................................. v
Section 2Specifications .......................................................................................................1
Machine Specifications...........................................................................................1
Performance Specifications....................................................................................1
Hydraulic Oil Specifications....................................................................................2
Hydraulic Component Specifications .....................................................................4
Manifold Component Specifications.......................................................................4
Battery Specifications.............................................................................................4
Hydraulic Hose and Fitting Torque Specifications .................................................5
Torque Procedure ..................................................................................................6
Section 3 Repair Procedures ...............................................................................................8
Introduction.............................................................................................................8
Platform Controls ...............................................................................................10
1-1 Circuit Board...................................................................................................11
1-2 Joystick...........................................................................................................12
1-3 Platfrom Controls Alarm .................................................................................13
1-4 Platfrom Emergency Stop Button...................................................................13
Platform Components........................................................................................14
2-1 Platform ..........................................................................................................14
2-2 Platform Extension Deck................................................................................15
Scissor Components .........................................................................................17
3-1 Scissor Assembly, GS-2669 DC ....................................................................18
3-2 Scissor Assembly, GS-3369 DC ....................................................................21
3-3 Scissor Assembly, GS-4069 DC ....................................................................25
3-4 Wear Pads......................................................................................................28
3-5 Lift Cylinders...................................................................................................30

May 2021
Table of Contents
viii GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Ground Controls ................................................................................................ 32
4-1 Software Revision Level ................................................................................ 33
4-2 Machine Setup............................................................................................... 34
4-3 Auxiliary Platform Lowering ........................................................................... 35
4-4 Level Sensor - Models without Outriggers..................................................... 35
4-5 Level Sensor - Models with Outriggers.......................................................... 38
4-6 Service Override Mode .................................................................................. 40
Hydraulic Pump.................................................................................................. 42
5-1 Hydraulic Pump ............................................................................................. 42
How to Test the Hydraulic Pump .................................................................... 42
How to Remove the Hydraulic Pump.............................................................. 42
How to Calibrate the Hydraulic Pump............................................................. 43
Manifolds ............................................................................................................ 45
6-1 Function Manifold Components..................................................................... 45
6-1a Function Manifold Components................................................................... 46
6-2 Valve Adjustments - Function Manifold ......................................................... 49
How to Adjust the System Relief Valve .......................................................... 49
How to Adjust the Oscillate Relief Valve ........................................................ 51
How to Adjust the Steer Relief Valve.............................................................. 53
How to Adjust the Platform Up Relief Valve -
Models with Platform Overload............................................................... 55
How to Adjust the Platform Up Relief Valve -
Models without Platform Overload.......................................................... 64
6-3 Outrigger Manifold Components.................................................................... 67
6-4 Valve Coils..................................................................................................... 68
Hydraulic Tank ................................................................................................... 70
7-1 Hydraulic Tank............................................................................................... 70

May 2021
Table of Contents
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC ix
Steer Axle Components.....................................................................................71
8-1 Yoke Assembly ..............................................................................................71
8-2 Steer Cylinder.................................................................................................73
8-3 Tie Rod...........................................................................................................73
8-4 Oscillate Cylinder ...........................................................................................74
8-5 Oscillate Hoses ..............................................................................................74
8-6 Steer Angle Sensor ........................................................................................76
Non-steer Axle Components.............................................................................80
9-1 Drive Motors...................................................................................................80
9-2 Drive Hub .......................................................................................................82
Outrigger Components ......................................................................................83
10-1 Outrigger Cylinder ........................................................................................83
10-2 Outrigger Calibration ....................................................................................84
Platform Overload Components .......................................................................86
11-1 Platform Overload System ...........................................................................86
11-2 Platform Overload Recovery........................................................................90

May 2021
Table of Contents
x GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Section 4 Fault Codes......................................................................................................... 92
Introduction .......................................................................................................... 92
GCON I/O Map..................................................................................................... 95
Operation Indicator Codes (OIC) ......................................................................... 97
Diagnostic Trouble Codes (DTC)......................................................................... 97
Troubleshooting "HXXX" and "PXXX" Faults....................................................... 98
Fault Inspection Procedure .................................................................................. 99
Type "HXXX" Faults ........................................................................................... 101
Type "PXXX" Faults ........................................................................................... 104
Type "UXXX" Faults ........................................................................................... 106
Type "FXXX" Faults ........................................................................................... 108
Type "CXXX" Faults ........................................................................................... 111

May 2021
Table of Contents
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC xi
Section 5 Schematics........................................................................................................113
Introduction.........................................................................................................113
Electrical Schematic Abbreviations and Wire Color Legends ............................114
Hydraulic Component Legend............................................................................117
Electrical Symbols Legend .................................................................................118
Hydraulic Symbols Legend.................................................................................119
Limit Switch Legend ...........................................................................................120
Fuse, Ground and Platform Control Boxes ...................................................121
Fuse Box Layout, All Models..............................................................................122
Ground Control Box Layout, All Models .............................................................123
Platform Control Box Layout, Models with 2 Speed Lift.....................................126
Control Box Layout, Models with Proportional Lift .............................................127
Electrical Schematics - ANSI / CSA................................................................129
Electrical Schematic, GS-2669 DC and GS-3369 DC with 2 Speed Lift,
(ANSI / CSA) (to serial number GS6915-6388)..........................................130
Electrical Schematic, GS-2669 DC and GS-3369 DC with Proportional Lift,
(ANSI / CSA) (from serial number GS6915-6389 to GS6915-7719)..........131
Electrical Schematic, GS-2669 DC and GS-3369 DC with Proportional Lift,
(ANSI / CSA) (from serial number GS6915-7720) .....................................134
Electrical Schematic, GS-4069 DC with 2 Speed Lift,
(ANSI / CSA) (to serial number GS6915-6388)..........................................135
Electrical Schematic, GS-4069 DC with Proportional Lift, (
ANSI / CSA) (from serial number GS6915-7720).......................................138
Electrical Schematic, GS-4069 DC with Proportional Lift,
(ANSI / CSA) (from serial number GS6915-6389 to GS6915-7719)..........138

May 2021
Table of Contents
xii GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Electrical Schematics - AS / CE...................................................................... 141
Electrical Schematic, GS-2669 DC and GS-3369 DC with 2 Speed Lift,
(AS / CE) (to serial number GS6915-6388) ............................................... 142
Electrical Schematic, GS-2669 DC and GS-3369 DC with Proportional Lift,
(AS / CE) (from serial number GS6915-6389 to GS6915-7719) ............... 143
Electrical Schematic, GS-2669 DC and GS-3369 DC with Proportional Lift,
(AS / CE) (from serial number GS6915-7720) ........................................... 146
Electrical Schematic, GS-4069 DC with 2 Speed Lift,
(AS / CE) (to serial number GS6915-6388) ............................................... 147
Electrical Schematic, GS-4069 DC with Proportional Lift,
(AS / CE) (from serial number GS6915-6389 to GS6915-7719) ............... 150
Electrical Schematic, GS-4069 DC with Proportional Lift,
(AS / CE) (from serial number GS6915-7720) ........................................... 151
Hydraulic Schematics...................................................................................... 153
Hydraulic Schematic, GS-2669 DC and GS-3369 DC with 2 Speed Lift
(to serial number GS6915-6388)................................................................ 154
Hydraulic Schematic, GS-2669 DC and GS-3369 DC with Proportional Lift
(from serial number GS6915-6389) ........................................................... 155
Hydraulic Schematic, GS-4069 DC with 2 Speed Lift
(to serial number GS6915-6388)................................................................ 158
Hydraulic Schematic, GS-4069 DC with Proportional Lift
(from serial number GS6915-6389) ........................................................... 159
Hydraulic Schematic, GS-2669 DC and GS-3369 DC with 2 Speed Lift
(to serial number GS6915-6388)................................................................ 162
Hydraulic Schematic, GS-2669 DC and GS-3369 DC with Proportional Lift
(from serial number GS6915-6389) ........................................................... 163

May 2021 Service and Repair Manual
Specifications
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC 1
Section 2 Specifications
Machine Specifications
Fluid capacities
Hydraulic tank
(maximum fill
capacity)
16.5 gallons
62.5 liters
Hydraulic system (including tank)
18 gallons
68.1 liters
Drive hub
EP 90 or SAE 90 multipurpose hypoid
gear oil API service classification GL5
24.5 ounces
725 cc
Tires and wheels
Wheel lugs
9 @ 5/8-
18
Lug nut
torque, dry
Rear
170 ft-
lbs
230 Nm
Lug nut torque, lubricated
Rear
130 ft-
lbs
176 Nm
Lug nut torque, dry
Front
90 ft-
lbs
122 Nm
Lug nut torque, lubricated
Front
68 ft-
lbs
92 Nm
Castle nut (steer end)
Castle nut torque
35 ft-
lbs
47.5 Nm
Non-marking, foam filled, RT
Tire size
26 x 12D380
Tire ply rating
8
Tire diameter
26 in
66 cm
Tire width
12 in
30 cm
Weight, each
177.5 lbs
80.5 kg
For operational specifications, refer to the
Operator's Manual.
Performance Specifications
Drive speed, maximum
Platform stowed
Forward direction
4.5 mph
7.2 km/h
40 ft / 6.1 sec
12.2 m / 6.1 sec
Platform stowed
Reverse direction
3.0 mph
4.8 km/h
40 ft / 9.1 sec
12.2 m / 9.1 sec
Platform
raised
0.3 mph
0.5 km/h
40 ft / 91 sec
12.2 m / 91 sec
Braking distance, maximum
High range on paved surface
3 ft
0.9 m
Gradeability
See Operator's Manual
Function speed, maximum from platform controls
(with maximum rated load in platform)
GS-2669 DC
Platform up
Platform down
29 to 39 seconds
26 to 36 seconds
GS-3369 DC
Platform up
Platform down
34 to 44 seconds
24 to 34 seconds
GS-4069 DC
Platform up
Platform down
56 to 66 seconds
23 to 33 seconds
Outrigger leveling, maximum
Front
Back
Side to side
5.3°
4.2°
11.7°

Service and Repair Manual May 2021
Specifications
2 GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Hydraulic Oil Specifications
Hydraulic Fluid Specifications
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 prevention, corrosion inhibition, seal
conditioning, and foam and aeration suppression
properties.
Cleanliness l
evel,
minimum
ISO 15/13
Water content,
maximum
250 ppm
Recommended Hydraulic Fluid
Hydraulic oil type
Chevron Rando HD Premium
Viscosity grade
32
Viscosity index
200
Optional Hydraulic Fluids
Mineral based
Shell Tellus S2 V 32
Shell Tellus S2 V 46
Shell Tellus S4 VX 32 Shell
Shell Donax TG (Dexron III)
Chevron 5606A
Biodegradable
Petro Canada Environ MV
46
Fire resistant
UCON Hydrolube HP-
5046
Note: Genie specifications require additional
equipment and special installation instructions for
the approved optional fluids. Consult Genie
Product Support before use.
Optional fluids may not have
the same hydraulic lifespan and
may result in component
damage.
Note: Extended machine operation can cause the
hydraulic fluid temperature to increase beyond it's
maximum allowable range. If the hydraulic fluid
temperature consistently exceeds 200°F / 90°C an
optional oil cooler may be required.
Do not top off with incompatible
hydraulic fluids. Hydraulic fluids
may be incompatible due to the
differences in base additive
chemistry. When incompatible
fluids are mixed, insoluble
materials may form and deposit
in the hydraulic system,
plugging hydraulic lines, filters,
control valves and may result in
component damage.
Note: Do not operate the machine when the
ambient air temperature is consistently above
120°F / 49°C.
Hydraulic Fluid Temperature
Range
Ambient air temperature
1 Chevron hydraulic oil 5606A
2 Petro-Canada Environ MV 46
3 UCON Hydrolube HP-5046D
4 Chevron Rando HD premium oil MV

May 2021 Service and Repair Manual
Specifications
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC 3
Chevron Rando HD Premium Oil
MV Fluid Properties
ISO Grade
32
Viscosity index
200
Kinematic Viscosity
cSt @ 200°F / 100°C
cSt @ 104°F / 40°C
7.5
33.5
Brookfield Viscosity
cP @
-4°F / -20°C
cP @
-22°F / -30°C
1040
3310
Flash
point
375°F / 190°C
Pour point
-58°F / -
50°C
Maximum continuous operating
temperature
171°F / 77°C
Note: A hydraulic oil heating system is
recommended when the ambient temperature is
consistently below 0°F / -18°C.
Note: Do not operate the machine when the
ambient temperature is below -20°F / -29°C with
Rando HD Premium MV.
Chevron 5606A Hydraulic Oil
Fluid Properties
ISO Grade
15
Viscosity index
300
Kinematic Viscosity
cSt @ 200°F / 100°C
cSt @ 104°F / 40°C
cSt @
-40°F / -40°C
5.5
15.0
510
Flash point
180°F / 82°C
Pour point
-81°F / -
63°C
Maximum continuous operating
temperature
124°F / 51°C
Note: Use of Chevron 5606A hydraulic fluid, or
equivalent, is required when ambient temperatures
are consistently below 0°F / -17°C unless an oil
heating system is used.
Continued use of Chevron
5606A hydraulic fluid, or
equivalent, when ambient
temperatures are consistently
above 32°F / 0°C may result in
component damage
Petro-Canada Environ MV 46
Fluid Properties
ISO Grade
46
Viscosity index
154
Kinematic Viscosity
cSt @ 200°F / 100°C
cSt @ 104°F / 40°C
8.0
44.4
Flash point
482°F / 250°C
Pour point
-49°F / -
45°C
Maximum continuous operating
temperature
180°F / 82°C
Shell Tellus S4 VX Fluid
Properties
ISO Grade
32
Viscosity index
300
Kinematic Viscosity
cSt @ 200°F / 100°C
cSt @ 104°F / 40°C
9
33.8
Brookfield Viscosity
cSt @
-4°F / -20°C
cSt @
-13°F / -25°C
cSt @
-40°F / -40°C
481
702.4
2624
Flash point
>100
Pour point
-76°F / -
60°C
Maximum
continuous operating
temperature
103°F / 75°C
UCON Hydrolube HP-5046 Fluid
Properties
ISO Grade
46
Viscosity index
192
Kinematic Viscosity
cSt @ 149°F / 65°C
cSt @ 104°F / 40°C
cSt @ 0°F /
-18°C
22
46
1300
Flash point
None
Pour point
-81°F / -
63°C
Maximum continuous operating
temperature
189°F / 87°C

Service and Repair Manual May 2021
Specifications
4 GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Hydraulic Component
Specifications
Function pump
Type
gear pump
Displacement
0.4 cu in
6 cc
Flow rate @ 3100 rpm
6 gpm
22.7 L/min
Function manifold
System relief valve pressure,
maximum
3500 ps
241 bari
Lift relief valve pressure
GS
-2669 DC
3100 psi
214 bar
Lift relief valve pressure
GS
-3369 DC
2900 psi
200 bar
Lift relief valve pressure
GS
-4069 DC
2850 psi
197 bar
Steer relief
valve pressure
1500 psi
103 bar
Oscillate relief valve pressure
3300 psi
228 bar
Steer flow regulator
2 gpm
7.6 L/min
Oscillate flow regulator
1 gpm
4 L/min
Manifold Component
Specifications
Plug torque
SAE No. 2
36 in-
lbs / 4 Nm
SAE No. 4
10 ft-
lbs / 13 Nm
SAE No. 6
14 ft-
lbs / 19 Nm
SAE No. 8
38 ft-
lbs / 51 Nm
SAE No.10
41 ft-
lbs / 55 Nm
SAE No. 12
56 ft-
lbs / 76 Nm
Battery Specifications
T105
Type
6v DC
Quantity
8
Capacity
225 AH
Reserve capacity @ 25A rate
447 minutes
Reserve capacity @ 75A rate
115 minutes
Weight, each
62 lbs / 28 kg
Weight (tray with batteries)
554 lbs / 251 kg
J305GH
Type
6V DC
Quantity
8
Capacity
315 AH
Reserve capacity @ 25A
rate 678 minutes
Reserve capacity @ 75A rate
175 minutes
Weight, each
88 lbs / 40 kg
Weight (tray with batteries)
779 lbs / 353.5kg

May 2021 Service and Repair Manual
Specifications
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC 5
Hydraulic Hose and Fitting
Torque Specifications
Your machine is equipped with Parker Seal-Lok™
ORFS or 37° JIC fittings and hose ends. Genie
specifications require that fittings and hose ends be
torqued to specification when they are removed
and installed or when new hoses or fittings are
installed.
Seal-Lok™ Fittings
(hose end - ORFS)
SAE Dash Size Torque
-4 10 ft-lbs / 13.6 Nm
-6 30 ft-lbs / 40.7 Nm
-8 40 ft-lbs / 54.2 Nm
-10 60 ft-lbs / 81.3 Nm
-12 85 ft-lbs / 115 Nm
-16 110 ft-lbs / 150 Nm
-20 140 ft-lbs / 190 Nm
-24 180 ft-lbs / 245 Nm
JIC 37° Fittings
(swivel nut or hose connection)
SAE Dash Size Thread Size Flats
-4 7/16-20 2
-6 9/16-18 1 ¼
-8 3/4-16 1
-10 7/8-14 1
-12 1 1/16-12 1
-16 1 5/16-12 1
-20 1 5/8-12 1
-24 1 7/8-12 1
SAE O-ring Boss Port
(tube fitting - installed into Aluminum)
(all types)
SAE Dash Size Torque
-4 14 ft-lbs / 19 Nm
-6 23 ft-lbs / 31.2 Nm
-8 36 ft-lbs / 54.2 Nm
-10 62 ft-lbs / 84 Nm
-12 84 ft-lbs / 114 Nm
-16 125 ft-lbs / 169.5 Nm
-20 151 ft-lbs / 204.7 Nm
-24 184 ft-lbs / 249.5 Nm
Adjustable Fitting Non-adjustable fitting
1 jam nut
SAE O-ring Boss Port
(tube fitting - installed into Steel)
SAE Dash Size
Torque
-4 ORFS / 37° (Adj)
ORFS (Non-adj)
37° (Non-adj)
15 ft-lbs / 20.3 Nm
26 ft-lbs / 35.3 Nm
22 ft-lbs / 30 Nm
-6 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
35 ft-lbs / 47.5 Nm
29 ft-lbs / 39.3 Nm
-8 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
60 ft-lbs / 81.3 Nm
52 ft-lbs / 70.5 Nm
-10 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
100 ft-lbs / 135.6 Nm
85 ft-lbs / 115.3 Nm
-12 (All types) 135 ft-lbs / 183 Nm
-16 (All types) 200 ft-lbs / 271.2 Nm
-20 (All types) 250 ft-lbs / 339 Nm
-24 (All types) 305 ft-lbs / 413.5 Nm

Service and Repair Manual May 2021
Specifications
6 GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Torque Procedure
Seal-Lok™ fittings
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.
Note: The O-ring in Parker Seal Lok™ fittings and
hose end are custom-size O-rings. They are not
standard size O-rings. They are available in the
O-ring field service kit (Genie part number 49612).
2 Lubricate the O-ring before installation.
3 Be sure the O-ring face seal 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. Refer to the appropriate torque chart in
this section.
6 Operate all machine functions and inspect the
hose, fittings and related components to
confirm there are no leaks.
JIC 37° fittings
1 Align the tube flare (hex nut) against the nose
of the fitting body (body hex fitting) and tighten
the hex nut to the body hex fitting to hand tight,
approximately 30 in-lbs / 3.4 Nm.
2 Using a permanent ink marker, make a
reference mark on one the flats of the hex nut
and continue the mark onto the body of the
hex fitting. Refer to Illustration 1.
Illustration 1
1 hex nut
2 reference mark
3 body hex fitting

May 2021 Service and Repair Manual
Specifications
Part No. 1272220GT GS™-2669 DC • GS™-3369 DC • GS™-4069 DC 7
3 Working clockwise on the body hex fitting,
make a second mark with a permanent ink
marker to indicate the proper tightening
position. Refer to Illustration 2.
Note: Use the JIC 37° Fitting table in this section to
determine the correct number of flats, for the
proper tightening position.
Note: The marks indicate the correct tightening
positions have been determined. Use the second
mark on the body hex fitting to properly tighten the
joint after it has been loosened.
Illustration 2
1 body hex fitting
2 reference mark
3 second mark
4 Tighten the hex nut until the mark on the hex
nut is aligned with the second mark on the
body hex fitting.
5 Operate all machine functions and inspect the
hose, fittings and related components to
confirm there are no leaks.

Service and Repair Manual May 2021
Repair Procedures
8 GS™-2669 DC • GS™-3369 DC • GS™-4069 DC Part No. 1272220GT
Section 3 Repair Procedures
Observe and Obey:
Repair procedures shall be completed by a
person trained and qualified on the repair of
this machine.
Immediately tag and remove from service a
damaged or malfunctioning machine.
Repair any machine damage or malfunction
before operating the machine.
Before Repairs Start:
Read, understand and obey the safety rules
and operating instructions in the appropriate
operator's manual on your machine.
Be sure that all necessary tools and parts are
available and ready for use.
Use only Genie approved replacement parts.
Read each procedure completely and adhere
to the instructions. Attempting shortcuts may
produce hazardous conditions.
Machine Configuration:
Unless otherwise specified, perform each
repair procedure with the machine in the
following configuration:
•Machine parked on a firm, level surface
•Key switch in the off position with the key
removed
•The red Emergency Stop button in the off
position at both the ground and platform
controls
•Wheels chocked
•All external AC power supply disconnected
from the machine
•Platform in the stowed position