This manual includes detailed
procedures for each
maintenance inspection.
Rough Terrain
Scissor Lifts
For
Codes, Electrical and Hydraulic
Schematics, refer to the
appropriate Service and Repair
Manual for your machine.
Refer to the inside cover for a list of models
included in this
Original Instructions
Part No. 1272215GT
Rev E
March 2023
manual.
Repair procedures, Fault
2
Page 2
Maintenance ManualMarch 2023
Introduction
Introducti on Introducti on
Important
Read, understand and obey the safety rules and
operating instructions in the appropriate Operator's
Manual on your machine before attempting any
maintenance procedure.
This manual provides detailed scheduled
maintenance information for the machine owner
and user.
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 be performed at an
authorized Genie dealer service center.
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.
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.
ii Scissor Lifts Part No. 1272215GT
Page 3
March 2023 Maintenance Manual
Models
Serial number
GS
GS
from SN
from SN GS3011C
GS3016C
from SN GS3014D
GS3016D
from SN GS3016P
GS3016P
from GS30C
from GS30D
40100
from GS30P
GS30P
GS
from SN GS3211A
f
GS3216C
from SN GS3216P
GS3216P
from GS32C
from GS32D
10100
from GS32P
GS32P
GS
from SN GS4612A
from SN GS4612C
GS4616C
from SN GS4614D
GS4616D
from SN GS4616P
GS4616P
from GS46C
from GS46D
40100
from GS46P
GS46P
GS
from SN GS4612A
from SN GS4616P
GS4616P
from GS46P
GS
from SN GS4712C
GS4716C
from SN GS4714D
GS4716D
from GS4716P
GS4716P
from GS47C
from GS47D
from GS47P
GS
from SN GS6911
from SN GS6916F
GS69F
from
GS69F
GS
from SN GS6912
from SN GS6916F
GS6916F
from GS69F
GS69F
GS
from SN GS6914
from SN GS6916F
GS6916F
from GS69F
GS69F
GS
from SN GS8413
GS8415
from SN GS8416F
GS8416F
from GS84D
400
from GS84F
GS84F
GS
from SN GS9013
GS9015
from SN GS9016F
GS9016F
from GS90D
3200
from GS90F
GS90F
Introduction
Models included in this manual
Use the following chart to identify the specific
serial number for models included in this manual.
-1530 / GS-1532
-1930 / GS-1932
-200100
-2032/2632/3232
rom SN GS3212C-10000 to
-200100
-2046/2646/3246
-200100
-2646 AV/2646 AV35
-4047
Part No. 1272215GT Scissor Lifts iii
GS3010A-110000
-10000 to
-23999
-101 to
-607
-151487 to
-160599
-24000
-6080 to GS30D-
-160600 to
-110000
-17299
-142676 to
-148699
-17300
-101 to GS32D-
-148700 to
-110000
-10000 to
-18099
-101 to
-5029
-138362 to
-141799
-18100
-5030 to GS46D-
-141800 to
-110000
-138383 to
-141799
-141800
-101 to
-4499
-101 to
-3959
-101 to
-999
-4500
-3960
-1000
-2669/3369/4069 RT
-2669/3369/4069 DC
-2669/3369/4069 BE
-3384
-3390/4390/5390
-101
-7897 to
-10499
GS69F-10500 to
-17999
-1300
-7897 to
-10499
-10500 to
-17999
-5000
-7897 to
-10499
-10500 to
-17999
-42181 to
-42382
-42383 to
-45499
-101 to GS84D-
-45500 to
-45999
-48427 to
-51064
-51064 to
-53299
-101 to GS90D-
-53300 to
-55999
Page 4
Maintenance Manual March 2023
Introduction
Find additional Manuals for your
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.
Identifying the Correct Procedure
for your Model
Unless otherwise noted, each procedure will apply
to all models. Procedures that only apply to
specific models or options will include the
information in the procedure title.
Examples of procedures that apply to specific
models:
• Test the Oscillate Axle - GS-90
• Grease the Steer Yokes - GS-30, GS-32,
GS-46 and GS-47
• Model Abbreviations:
GS-30: GS-1530, GS-1532, GS-1930, GS-
ECM – Electronic Control Module
(GS-69 RT, GS-84, and GS-90)
GCON – Ground Controller. Located at the
chassis ground controls. (GS-30, GS-32, GS-46,
GS-47, GS-69 DC, and GS-69 BE)
PCON – Platform Controller. Located at the
platform. (GS-30, GS-32, GS-46, GS-47, GS-69
DC, and GS-69 BE)
CAT5 Cable – Standard Ethernet cable used for
networking purposes.
iv Scissor Lifts Part No. 1272215GT
Page 5
March 2023 Maintenance Manual
Reference Examples:
Introduction
Revision History
Revision Date Section Procedure / Description
A 3/2016
B 5/2016 Specifications GM .998L
Maintenance Programmed Maint. Report
B1 7/2016 Annual A-8
B2 9/2016 Introduction Models Included
C 1/2019 All Sections GS-1330m
D 6/2019 All Sections GS-4655
D1 6/2021 Annual A-9
E 10/2021 Introduction Add ending serial break
All Sections Remove GS-1330m, GS-4655
Initial Release
C-2, P2-1, P0-8
Programmed Maint. Report
E1 6/2022 Annual Remove A-6, A-7, A-8
E2
3/2023
Maintenance
P2-4
Section – Specifications
Section – Maintenance, (procedure)
Click on any content or procedure in the Table of Contents to view
Electronic Version
the update.
Part No. 1272215GT Scissor Lifts v
Page 6
Maintenance Manual March 2023
Introduction
Revision History (continued)
Revision Date Section Procedure / Description
Reference Examples:
Section – Specifications
Section – Maintenance, (procedure)
Electronic Version
Click on any content or procedure in the Table of Contents to view
the update.
vi Scissor Lifts Part No. 1272215GT
Page 7
March 2023 Maintenance Manual
Safety Rules
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 modify or alter a MEWP without prior
written permission from the manufacturer.
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.
Part No. 1272215GT Scissor Lifts vii
Page 8
Maintenance Manual March 2023
Read each procedure thoroughly. This
manual and the decals on the
machine, use signal words to identify
the following:
Safety alert symbol
alert personnel to potential
personal 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 s
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
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 load
wear approved steel
Be sure to
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 b
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 selflocking 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
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.
—used to
ituation which, if
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.
keep sparks, flames and
e lifted. Use
viii Scissor Lifts Part No. 1272215GT
result in
s. Always
-toed shoes.
Page 9
March 2023
Table of Contents
Introduction Introduction ........................................................................................................... ii
Important Information ............................................................................................. ii
Models included in this manual ............................................................................. iii
Find additional Manuals for your Model ................................................................ iii
Identifying the Correct Procedure for your Model ................................................. iv
Glossary of terms: ................................................................................................. iv
Revision History...................................................................................................... v
Section 1 Safety Rules ........................................................................................................ vii
General Safety Rules ........................................................................................... vii
Function speed, maximum from platform
(with maximum rated load in platform)
GS-1530, GS-1532, GS-1930 and GS-1932
econds
econds
econds
GS-2032 and GS-2632
econds
econds
econds
GS
econds
econds
econds
GS
Platform up (fast mode)
Platform up (slow mode)
Platform down
Platform Ext. Deck
Platform Ext. Deck
econds
econds
econds
econds
econds
GS-3232 and GS-3246
econds
econds
econds
GS-4047
econds
econds
econds
GS
econds
econds
econds
Function speed, maximum from platform controls
(with 1 person in platform)
GS-1530, GS-1532, GS-1930 and GS-1932
econds
econds
GS
econds
econds
GS-2046 and GS-2646
econds
econds
GS
Platform up
Platform down
Platform Ext. Deck
Platform Ext. Deck
econds
econds
econds
econds
GS
econds
econds
GS-4047
econds
econds
Performance Specifications
Section 2 Performanc e Specif icati ons
Function Speeds
(models without proportional lift)
controls
Platform up (fast mode)
Platform up (slow mode)
Platform down
Platform up (fast mode)
Platform up (slow mode)
Platform down
-2046 and GS-2646
Platform up (fast mode)
Platform up (slow mode)
Platform down
-2646 AV and GS-2646 AV35
- Extend
- Retract
15 to 17 s
30 to 32 s
28 to 30 s
28 to 32 s
58 to 62 s
32 to 36 s
28 to 32 s
58 to 62 s
32 to 36 s
28 to 32 s
58 to 62 s
32 to 36 s
28 to 32 s
31 to 35 s
Function Speeds
(models with proportional lift)
Platform up
Platform down
-2032 and GS-2632
Platform up
Platform down
Platform up
Platform down
-2646 AV and GS-2646 AV35
- Extend
- Retract
-3232 and GS-3246
Platform up
Platform down
15 to 17 s
18 to 25 s
28 to 32 s
24 to 28 s
28 to 32 s
28 to 32 s
28 to 32 s
28 to 32 s
28 to 32 s
31 to 35 s
55 to 59 s
28 to 32 s
Platform up (fast mode)
Platform up (slow mode)
Platform down
Platform up (fast mode)
Platform up (slow mode)
Platform down
-2669DC
Platform up (fast mode)
Platform up (slow mode)
Platform down
55 to 59 s
108 to 112 s
33 to 37 s
71 to 76 s
83 to 87 s
41 to 46 s
71 to 76 s
83 to 87 s
41 to 46 s
Platform up
Platform down
71 to 76 s
41 to 46 s
Part No. 1272215GT Scissor Lifts 1
Page 14
Maintenance Manual March 2023
Function speed, maximum from platform controls
(with maximum rated load in platform)
GS-2669 DC, GS-2669 BE, GS-2669 RT
Platform up
Platform down
econds
econds
GS
Platform up
Platform down
econds
econds
GS
Platform up
Platform down
econds
econds
GS-3384, GS-3390
Platform up
Platform down
econds
econds
GS
Platform up
Platform down
econds
econds
GS-5390
Platform up
Platform down
econds
econds
Performance Specifications
Function Speeds
-3369 DC, GS-3369 BE, GS-3369 RT
-4069 DC, GS-4069 BE, GS-4069 RT
-4390
29 - 39 s
26 - 46 s
34 - 44 s
24 - 44 s
56 - 66 s
33 - 53 s
40 - 50 s
24 - 34 s
40 - 50 s
34 - 44 s
55 - 65 s
44 - 54 s
2 Scissor Lifts Part No. 1272215GT
Page 15
March 2023 Maintenance Manual
paved surface
GS
30%
GS
25%
GS
GS
30%
GS
GS-3246
25%
GS
25%
20% (35mph Wind Rating)
GS
econds
25%
GS
High speed
40%
35% (with outriggers)
GS
GS
High speed
35%
30% (with outriggers)
GS
GS
GS
(DC
models)
35% (ext deck uphill)
15% (ext deck downhill)
GS
econds
50%
GS
GS
econds
50%
GS
econds
40%
Performance Specifications
Drive Speeds
Model Stowed position Elevated position
-1530, GS-1532
-1930, GS-1932
-2032, GS-2046,
-2646
-2632, GS-3232,
-2646 AV
-4047
-2669 RT
-3369 RT
-4069 RT
-2669
-3369
-4069
and BE
-3384
-3390
-4390
-5390
High torque 30 seconds
High torque 30 seconds
Forward - 6.1 seconds
Reverse - 9.1 seconds
10.9 seconds
40 ft / 12.2 m
10.9 seconds
40 ft / 12.2 m
12.4 seconds
40 ft / 12.2 m
12.4 seconds
40 ft / 12.2 m
12.4 seconds
40 ft / 12.2 m
13.6 seconds
40 ft / 12.2 m
7.8 seconds
40 ft / 12.2 m
40 ft / 12.2 m
7.8 seconds
40 ft / 12.2 m
40 ft / 12.2 m
40 ft / 12.2 m
6.8 s
40 ft / 12.2 m
5.5 s
40 ft / 12.2 m
5.5 s
40 ft / 12.2 m
55 seconds
40 ft / 12.2 m
55 seconds
40 ft / 12.2 m
55 seconds
40 ft / 12.2 m
55 seconds
40 ft / 12.2 m
55 seconds
40 ft / 12.2 m
55 s
40 ft / 12.2 m
91 seconds
40 ft / 12.2 m
91 seconds
40 ft / 12.2 m
91 seconds
40 ft / 12.2 m
39 seconds
40 ft / 12.2 m
39 seconds
40 ft / 12.2 m
39 seconds
40 ft / 12.2 m
Braking distance,
maximum
High range on
1 - 3 ft
0.3 - 0.9 m
1 - 3 ft
0.3 - 0.9 m
1 - 3 ft
0.3 - 0.9 m
1 - 3 ft
0.3 - 0.9 m
1 - 3 ft
0.3 - 0.9 m
1 - 3 ft
0.3 - 0.9 m
2 ft
0.6 m
2 ft
0.6 m
3 ft
0.9 m
5 ft
1.5 m
5 ft
1.5 m
5 ft
1.5 m
Gradeability
Part No. 1272215GT Scissor Lifts 3
Page 16
Maintenance Manual March 2023
Model
-
-
-
2646AV
Castle nut torque
225 ft-lbs
305 Nm
Model
-
4069 RT
Castle nut torque
(steer end)
lbs
305 Nm
Lug nut torque
(steer end)
lbs
92 Nm
Lug nut torque
(non
lbs
176 Nm
Model
4069
(DC and BE models)
Castle nut torque
(steer end)
lbs
47,5 Nm
Lug nut torque
(steer end)
lbs
92 Nm
Lug nut torque
(non
lbs
176 Nm
Model
-
5390
Lug nut torque
lbs
127 Nm
Tire pressure
high flotation
si
ar
Torque Specifications
Tires and Wheels
Torque values are listed as lubricated unless
otherwise noted. Lug nuts must be coated with a
mineral based lubricant when removed and
replaced on the machine.
Note: When upgrading from standard to AGM
batteries the machine software must be configured
for AGM batteries. Refer to Repair Procedure,
Machine Setup in the Service and Repair Manual.
-4047
Voltage 12V DC
Group GC2
Type T-1275
Quantity 4
Battery capacity, maximum 150 AH
Reserve capacity @ 25A rate 280 minutes
-2669, GS-3369, GS-4069
Voltage 6V DC
Group GC2
Type T-105
Quantity 8
Battery capacity, maximum 225 AH
Reserve capacity @ 25A rate 447 minutes
-2669, GS-3369, GS-4069
Voltage 6V DC
Group 902
Type J305GH
Quantity 8
Battery capacity, maximum 315 AH
Reserve capacity @ 25A rate 678 minutes
-2669, GS-3369, GS-4069
Part No. 1272215GT Scissor Lifts 5
Voltage 6V DC
Group GC2
Type T145
Quantity 8
Battery capacity, maximum 260 AH
Reserve capacity @ 25A rate 530 minutes
Page 18
Maintenance Manual March 2023
Deutz D2011L03i
Genie part number 139320GT
Deutz D 2.9 L4
Genie part number 1251561GT
Perkins 403D
Genie part number 131661GT
Ford MSG-425
Genie part number 215322GT
Diagnostic Manual
Genie part number 162067GT
Kubota D1105-E3B
Genie part number 229761GT
Kubota WG
Genie part number 227584GT
Kohler KD350
Genie part number 1255885GT
GM .998L
Genie part number 1311928GT
D2011 L03i
Low idle
pm
313 Hz
High idle
pm
522 Hz
Oil capacity (including filter)
uarts
iters
Fan belt deflection
nch
m
D 2.9 L4
Low idle
pm
1500 Hz
High idle
pm
2500 Hz
Oil capacity (including filter)
uarts
iters
Engine coolant
Ethylene Glycol
Engine coolant capacity
uarts
iters
Fan belt deflection
nch
m
Engine Specifications
Engine Operator and
Maintenance Manuals
-11
-972
Deutz Engine Models
Unit ships with 15W-40. Extreme operating
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the
Engine Operator Manual for your engine.
1500 r
2500 r
9.5 q
9 l
3/8 to 1/2 i
9 to 12 m
1500 r
2500 r
9.4 q
9 l
10 q
9.4 l
3/8 to 1/2 i
9 to 12 m
6 Scissor Lifts Part No. 1272215GT
Page 19
March 2023 Maintenance Manual
403D
Low idle
pm
150 Hz
High idle
pm
300 Hz
Oil capacity (including filter)
uarts
iters
Engine coolant capacity
uarts
iters
Engine
Ethylene Glycol
Fan belt deflection
nch
m
MSG
Low idle
pm
53,3 Hz
High idle
pm
83,3 Hz
Oil capacity (including filter)
uarts
iters
Engine coolant capacity
uarts
iters
Engine coolant
Ethylene Glycol
Spark plug gap
nches
m
Fan belt deflection
nches
m
Engine Specifications
Perkins Engine Models
-11
coolant
Unit ships with 15W-40. Extreme operating
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the
Engine Operator Manual for your engine.
1500 r
3000 r
4.6 q
4.4 l
2.0 q
1.9 l
3/16 i
5 m
Ford Engine Models
-425
0.049 - 0.053 i
Unit ships with 15W-40. Extreme operating
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the
Engine Operator Manual for your engine.
1600 r
2500 r
6.7 q
6,4 l
10 q
9,5 l
1,25 - 1,35 m
3/8 - 1/2 i
9 - 12 m
Part No. 1272215GT Scissor Lifts 7
Page 20
Maintenance Manual March 2023
D1105
Low idle
pm
250 Hz
High idle
pm
500 Hz
Oil capacity (including filter)
uarts
iters
Engine coolant capacity
uarts
iters
Engine coolant
Ethylene Glycol
Fan belt deflection
nches
m
WG-972
Low idle
pm
250 Hz
High idle
pm
500 Hz
Oil capacity (including filter)
uarts
iters
Engine coolant capacity
uarts
iters
Engine coolant
Ethylene Glycol
Spark plug gap
nches
m
Fan belt deflection
nches
m
KD350
High idle
pm
Oil capacity (including filter)
uarts
iters
Engine Specifications
Kubota Engine Models
-E3B, D1105-E4B
0.024 - 0.028 i
0.28 - 0.35 i
Unit ships with 15W-40. Extreme operating
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the
Engine Operator Manual for your engine.
1500 r
3000 r
5.4 q
5,1 l
3.3 q
3,1 l
5/16 i
8 m
1500 r
3000 r
3.6 q
3,4 l
2.4 q
2,3 l
0,6 - 0,7 m
7 - 9 m
Kohler Engine Models
3600/3000 r
Unit ships with 15W-40. Extreme operating
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the
Engine Operator Manual for your engine.
1.3 q
1.2 l
8 Scissor Lifts Part No. 1272215GT
Page 21
March 2023 Maintenance Manual
.998L
Low idle
pm
36,6 Hz
High idle
pm
100 Hz
Oil capacity (including filter)
uarts
iters
Engine coolant capacity
uarts
iters
Engine coolant
Ethylene Glycol
Spark plug gap
nches
m
Engine Specifications
GM Engine Models
1100 r
0.039 - 0.047 i
3000 r
3.2 q
3,0 l
5 q
4,7 l
1,0 - 1,2 m
Unit ships with 15W-40. Extreme operating
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the
Engine Operator Manual for your engine.
Part No. 1272215GT Scissor Lifts 9
Page 22
Maintenance Manual March 2023
Manifold Relief Valve Pressure / Bar
GS
GS
GS
GS
3246
GS
o
GS
o
GS
GS
GS
GS
GS
GS
GS
Hydraulic Specifications
Hydraulic Relief Valve Pressure
Model System relief
-1530, GS-1532
-1930, GS-1932
-2032, GS-2632
-2046, GS-2646, GS-
-2646 AV
-3232
-4047
-2669 RT
-3369 RT
-4069 RT
-2669 DC and BE
-3369 DC and BE
-4069 DC and BE
3700 psi
255 bar
3700 psi
255 bar
3500 psi
241 bar
3500 psi
241 bar
3500 psi
241 bar
3500 psi
241 bar
3500 psi
241 bar
3500 psi
241 bar
3500 psi
241 bar
Lift relief Steer relief Outrigger
relief
1800 t
3700 psi
142 to 255 bar
1800 t
3700 psi
142 to 255 bar
3000 psi
206 bar
3100 psi
214 bar
2900 psi
200 bar
2850 psi
197 bar
3100 psi
214 bar
2900 psi
200 bar
2850 psi
197 bar
1500 psi
103 bar
1500 psi
103 bar
1500 psi
103 bar
X X
X X
X X
1500 psi
103 bar
1500 psi
103 bar
1500 psi
103 bar
X X X
3500 psi
241 bar
X X X
X
X
X
Oscillate
relief
X X
3300 psi
228 bar
3300 psi
228 bar
3300 psi
228 bar
3300 psi
228 bar
3300 psi
228 bar
3300 psi
228 bar
Traction
Manifold
Hot oil relief
2500 psi
172 bar
2500 psi
172 bar
2500 psi
172 bar
X
X
X
10 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Manifold Relief Valve Pressure / Bar
GS
GS
GS
GS
GS
GS
Check valve manifold
GS
Extension deck
manifold
GS
Lift pressure select
manifold
Hydraulic Specifications
Model System relief Lift relief Steer relief Outrigger
-3384
-3390
-4390
-5390
-1530, GS-1532
-1930, GS-1932
2700 to 2900 psi
186 to 200 bar
2700 to 2900 psi
186 to 200 bar
2900 to 3100 psi
200 to 214 bar
2900 to 3100 psi
200 to 214 bar
200 psi
14 bar
X
X
X
X
2700 to 2900 psi
186 to 200 bar
1950 to 2250 psi
135 to 155 bar
1950 to 2250 psi
135 to 155 bar
1950 to 2250 psi
135 to 155 bar
-2646 AV
750 psi
52 bar
relief
X X
X
X
X
Oscillate
relief
3500 psi
241 bar
3500 psi
241 bar
3500 psi
241 bar
Traction
Manifold
Hot oil relief
280 psi
19.3 bar
280 psi
19.3 bar
280 psi
19.3 bar
280 psi
19.3 bar
-4047
2000 psi
138 bar
Part No. 1272215GT Scissor Lifts 11
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Maintenance Manual March 2023
GS
GS
2646 AV
GS
GS
GS-2669, GS-3369, GS-4069
(all models)
24.5 fl oz
16.5 gallons
18 gallons
GS
GS
GS
GS
Hydraulic Specifications
Hydraulic and Drive Hub Fluid Capacities
Note: Hydraulic system includes hydraulic tank capacity.
Drive hub oil type: SAE 90 multipurpose hypoid gear oil API service classification GL5
Model Drive hubs Hydraulic tank
-1530, GS-1532, GS-1930, GS-1932 X
-2032, GS-2632, GS-2046, GS-2646, GS-
-3232, GS-3246 X
-4047 X
-3384
-3390
-4390
-5390
X
725 cc
26 fl oz
769 cc
26 fl oz
769 cc
26 fl oz
769 cc
26 fl oz
769 cc
3.4 gallons
12,9 liters
3.4 gallons
12,9 liters
3.4 gallons
12,9 liters
5.9 gallons
22,4 liters
62,5 liters
30 gallons
114 liters
30 gallons
114 liters
30 gallons
114 liters
30 gallons
114 liters
Hydraulic system
(including tank)
3.8 gallons
14,2 liters
4.5 gallons
17 liters
5.5 gallons
20,8 liters
7.5 gallons
28,4 liters
68,1 liters
37.5 gallons
142 liters
37.5 gallons
142 liters
38.25 gallons
145 liters
38.75 gallons
147 liters
12 Scissor Lifts Part No. 1272215GT
Page 25
March 2023 Maintenance Manual
Hydraulic Fluid Specifications
Genie specifications require hydraulic oils which are
designed to give
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 a
properties.
Cleanliness level,
minimum
ISO 15/13
Water content,
maximum
pm
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 Donax TG (Dexron III)
Chevron 5606A
Biodegradable
46
Fire resistant
5046
Optional fluids may not have
the same hydraulic lifespan and
may result in component
damage.
Do not top off with incompatible
raulic fluids. Hydraulic fluids
may be incompatible due to the
materials may form and deposit
nd may result in
Hydraulic Specifications
Hydraulic Oil Specifications
maximum protection to hydraulic
nd aeration suppression
250 p
hyd
differences in base additive
chemistry. When incompatible
fluids are mixed, insoluble
in the hydraulic system,
plugging hydraulic lines, filters,
control valves a
component damage.
Note: Do not operate the machine when the
ambient air temperature is consistently above
120°F / 49°C.
Hydraulic Fluid Temperature
Range
Petro Canada Environ MV
UCON Hydrolube HP-
Note: Genie specifications require additional
equipment and special installation instructions for
the approved optional fluids. Consult Genie
Product Support before use.
Note: Extended machine operation can cause the
hydraulic fluid temperature to increase beyond its
maximum allowable range. If the hydraulic fluid
temperature consistently exceeds 200°F / 90°C an
optional oil cooler may be required.
Continued use of Chevron
5606A hydraulic fluid, or
equivalent, when ambient
temperatures are consistently
above 32°F / 0°C may result in
component damage
Hydraulic Specifications
Chevron Rando HD Premium Oil
MV Fluid Properties
Chevron 5606A Hydraulic Oil
Fluid Properties
-4°F / -20°C
-22°F / -30°C
-58°F / -
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.
-40°F / -40°C
-81°F / -
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.
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)
-4 18 ft-lbs / 25 Nm
-6 30 ft-lbs / 41 Nm
-8 40 ft-lbs / 55 Nm
-10 60 ft-lbs / 81 Nm
-12 85 ft-lbs / 115 Nm
-16 110 ft-lbs / 150 Nm
-20 150 ft-lbs / 205 Nm
-24 230 ft-lbs / 315 Nm
SAE O-ring Boss Port
(tube fitting - installed into Aluminum)
(all types)
-4 14 ft-lbs / 19 Nm
-6 23 ft-lbs / 31,2 Nm
-8 36 ft-lbs / 49 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
JIC 37° Fittings
(swivel nut or hose connection)
SAE Dash Size Thread Size Flats
-4 7/16-20 2
-6 9/16-18 1 1/2
-8 3/4-16 1 1/2
-10 7/8-14 1 1/2
-12 1 1/16-12 1 1/4
-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 Steel)
SAE Dash Size Torque
-4 ORFS / 37° (Adj)
ORFS (Non-adj)
37° (Non-adj)
-6 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
-8 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
-10 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
-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
15 ft-lbs / 20,3 Nm
26 ft-lbs / 35,3 Nm
22 ft-lbs / 30 Nm
35 ft-lbs / 47,5 Nm
29 ft-lbs / 39,3 Nm
60 ft-lbs / 81,3 Nm
52 ft-lbs / 70,5 Nm
100 ft-lbs / 135,6 Nm
85 ft-lbs / 115,3 Nm
16 Scissor Lifts Part No. 1272215GT
Page 29
March 2023 Maintenance Manual
Hydraulic Specifications
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 Oring 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
Part No. 1272215GT Scissor Lifts 17
Page 30
Maintenance Manual March 2023
Hydraulic Specifications
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.
18 Scissor Lifts Part No. 1272215GT
Page 31
March 2023 Maintenance Manual
Failure to perform each
procedure as
scheduled may cause death,
serious injury or substantial
damage.
Maintenance Procedures
Section 3 Maintenanc e Proced ures
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 as specified on the Maintenance inspection Reports. The frequency and extent
of periodic examinations and tests may also
depend on national regulations.
presented and
Machine Configuration:
Unless otherwise specified, perform each
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
Immediately tag and remove from service a
damaged or malfunctioning machine.
Repair any machine damage or malfunction
before operating the machine.
Use only Genie approved replacement parts.
Machines that have been out of service for a
period longer than 3 months must complete
the quarterly inspection.
Part No. 1272215GT Scissor Lifts 19
Page 32
Maintenance Manual March 2023
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 a imminently hazardous
situation which, if not avoided, will
result in
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.
Indicates that tools will be required to
perform this procedure.
Indicates that new parts will be required to
perform this procedure.
Indicates that dealer service will be
required to perform this procedure.
Indicates that a
engine will be required to perform this
procedure.
Indicates that a warm engine will be
required to perform this procedure.
Maintenance Procedures
About This Section
This section contains detailed procedures for each
scheduled maintenance inspection.
Each procedure includes a description, safety
warnings and step-by-step instructions.
Maintenance Symbols Legend
Note: The following symbols have been used in
this manual to help communicate the intent of the
instructions. When one or more of the symbols
appear at the beginning of a maintenance
procedure, it conveys the meaning below.
Symbols Legend
death or serious injury.
cold motor/pump or
Indicates that a specific result is expected
after performing a series of steps.
Indicates that an incorrect result has occurred
after performing a series of steps.
20 Scissor Lifts Part No. 1272215GT
Page 33
March 2023 Maintenance Manual
Specific Interval: blank box is the interval to
be completed and the
as not required.
The description of the procedure or
checklist to be completed.
The procedure number or checklist to be
completed.
Check box to indicate stat
Specific interval is not required for this
procedure.
General area of the machine to complete
the procedure.
If this box has a designated time interval:
this is the specific time interval to complete
the procedure or
If this box is empty: the maintenance
checklist will include multiple time intervals,
use this box to write in the specific interval
for the inspection completed.
Maintenance Procedures
Maintenance Schedule
The maintenance procedures have been divided
into subsections that include: Commissioning,
Quarterly, Annually and Programmed maintenance
intervals. The maintenance inspection report has
been divided into general areas of the machine
that include: Drive Chassis, Platform, Functions
and Controls, Engine and Electrical.
Failure to perform these procedures may result in
poor performance, component damage and unsafe
operating conditions. They are essential to safe
operation, machine performance and service life.
Commissioning: A series of required one time
maintenance procedures to be performed at
50 and 150 hour intervals.
Quarterly and Annually: A series of maintenance
procedures to be performed quarterly or annually.
Programmed: A series of maintenance
procedures to be performed during a Pre-Delivery
Preparation or based on machine operating hours.
Programmed Example (under 1000 HRS):
Programmed Example:
Instructions Legend
Use the following detailed descriptions to identify
the intended use of the maintenance inspection
reports.
∅ marks the interval
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. Maintain completed
forms for a minimum of 4 years or in compliance
with your employer, jobsite and governmental
regulations and requirements.
Instruction Examples
Commissioning Example:
Quarterly and Annually Example:
us of inspection.
checklist.
Part No. 1272215GT Scissor Lifts 21
Page 34
Maintenance Manual March 2023
Legend
Comments
Pre
Pre
completed
Maintenance items completed
Function tests completed
Model
Serial number
Date
Machine owner
Inspected by (print)
Inspector signature
Inspector title
Inspector company
Pre-Delivery Preparation Report
Fundamentals
It is the responsibility of the owner or dealer to
perform the Pre-delivery Preparation.
The Pre-delivery Preparation is performed prior to
each delivery. The inspection is designed to
discover if anything is apparently wrong with a
machine before it is put into service.
A damaged or modified machine must never be
used. If damage or any variation from factory
delivered condition is discovered, the machine
must be tagged and removed from service.
Repairs to the machine may only be made by a
qualified service technician, according to the
manufacturer's specifications.
Scheduled maintenance inspections shall be
performed by qualified service technicians,
according to the manufacturer's specifications and
the requirements listed in the responsibilities
manual.
Instructions
Use the operator’s manual on your machine.
The Pre-delivery Preparation consists of
completing the Pre-operation Inspection, the
Maintenance items and the Function Tests.
Use this form to record the results. Place a check
in the appropriate box after each part is
completed. Follow the instructions in the operator’s
manual.
If any inspection receives an N, remove the
machine from service, repair and re-inspect it.
After repair, place a check in the R box.
Y = yes, acceptable
N = no, remove from service
R = repaired
-delivery Preparation
-operation inspection
Y N R
Page 35
Scheduled
March 2023
Maintenance Inspection Report – Scissor Lifts
Model
Drive Chassis
Electrical
Platform
Hour meter Date
Serial number Inspector company Machine owner
Inspected by (print) Inspector signature
Inspection Type
Q = quarterly or frequent inspections
A = annual inspections
Legend
Y = yes, acceptable
N = no, remove from service
R = repaired
∅ = not applicable
If any inspection receives an "N," tag and remove the machine from service, repair and re-inspect it. After repair, place a "R" in the box.
Intervals Q A
Inspect the Electrical Contactors - GS-30, GS-32,
GS-46, GS-47, GS-69 DC, GS-69 BE
Inspect the Fuel Tank Check Valve Venting
System - GS-69 RT Gas Models
Inspect the Tires, Wheels and Lug Nut Torque Q-15
Confirm the Proper Brake Configuration - GS-69,
GS-84, GS-90
Check the Drive Hub Oil Level and Fastener
Torque
Test the Oscillate Axle - GS-90 A-3
Check the Steer Yoke King Pin Fastener Torque GS-84, GS-90
Chassis Mechanicals and Hydraulics
Check the Module Tray Latch Components Q-3
Visual Inspection of the Hydraulic Oil Q-9
Inspect the Hydraulic Filters Q-10
Test the Function Pump -
GS-69 BE, GS-69 DC
Battery Inspection Q-2
Inspect the Battery Balancer - GS-69 DC Q-4
Inspect the Electrical Wiring Q-5
Inspect the Voltage Inverter (if equipped) Q-7
Engine
Check the Exhaust System Q-11
Check and Adjust the Engine RPM Q-14
Q-6
Q-12
Q-16
A-1
∅
∅
A-6
∅
Intervals Q A
A-2
∅
Intervals Q A
Intervals Q A
Test the Platform Overload Pressure Transducer
and Platform Height Sensor - GS-30, GS-32, GS46, GS-47 (if equipped)
Functions and Controls
Check for Open Bulletins and Owner Registration Q-1
Test the Flashing Beacons (if equipped) Q-8
Test the Fuel Select Operation - Gasoline/LPG
Models
Test the Drive Brakes Q-17
Test the Drive Speed – Stowed Position Q-18
Test the Drive Speed - Raised Position Q-19
Test the Down Limit Switch, Level Sensor and
Pothole Limit Switches - GS-30, GS-32, GS-46,
GS-47
Test the Platform Gate Proximity Switches and the
Extension Deck Limit Switch - GS-2646 AV, GS2646 AV35
Test the Down Limit Switch Descent Delay - GS69, GS-84, GS-90 (if equipped)
Make copies of this report to use for each inspection.
Select the appropriate procedures for the type of
inspection(s) to perform.
Intervals Q A
A-5
Intervals Q A
Q-13
Q-20
Q-21
A-4
∅
∅
Part No. 1272215GTScissor LiftsMaintenance Manual23
Page 36
Programmed
March 2023
Maintenance Inspection Report – Scissor Lifts
Model
All models
Perform every:
1 2 3 4 5
6
Hour meter Date
Serial number Inspector company Machine owner
Inspected by (print) Inspector signature
Programmed maintenance will be completed based on machine
hours. This program includes the onetime or commissioning
procedures for new products.
The onetime procedures will be completed at 50 or 150 hours.
Legend
Y = yes, acceptable
N = no, remove from
service
R = repaired
∅ = not applicable
If any inspection receives an "N," tag and remove the machine from service, repair and re-inspect it. After repair, place a "R" in the box.
Commissioning
50 Hour Service - all models C-1
Perform Engine Maintenance - 50 Hours C-2
Perform 150 Hour Service C-3
50 150
∅
∅
∅
Programmed Maintenance
Engines - all models, 1000 Hours P1-1
Replace the Drive Hub Oil - GS-69,
GS-84, GS-90
Engines- all models, 2000 Hours P2-1
Replace the Hydraulic Filters P2-2
Programmed Maintenance - Under 1000 HRS
Inspect the Engine Air Filter - GS-69 RT P0-1
Grease the Steer Yokes - GS-30, GS-32, GS-
P0-2
46, GS-47
Engines - Deutz Under 1000 Hours P0-3
Engines - Ford Under 1000 Hours P0-4
Engines - Kohler Under 1000 Hours P0-5
Engines - Kubota Under 1000 Hours P0-6
Engines - Perkins Under 1000 Hours P0-7
Engines - GM Under 1000 Hours P0-8
Status
Enter
Hours
40
100
Check the Free-wheel Configuration GS-84, GS-90
Check the Scissor Arm Wear Pads
(and Slider Blocks, If Equipped)
Grease the Steer Axle Wheel
Bearings - GS-69 BE, GS-69 DC
Test or Replace the Hydraulic Oil P2-6
Engines - all models, 3000 Hours P3-1
Make copies of this report to use for each
inspection.
Select the appropriate procedures for the type
of inspection(s) to perform.
Hours are in thousands
P1-2
∅
∅
P2-3
P2-4
P2-5
∅
∅
∅
∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
24 Scissor Lifts Maintenance Manual Part No. 1272215GT
Page 37
March 2023 Maintenance Manual
Commissioning Procedures
C-1
Perform 50 Hour Service
The 50 hour maintenance procedure is a one time
sequence of procedures to be performed after the
first 50 hours of usage. After this interval, refer to
the maintenance inspection report for continued
scheduled maintenance.
1 Perform the following maintenance
procedures:
All Models:
Q-15 Inspect the Tires, Wheels and Lug/Castle
Nut Torque
P1-2 Replace the Drive Hub Oil - GS-69, GS84, GS-90
P2-2 Replace the Hydraulic Filters
C-2
Perform Engine Maintenance - 50
Hours
The 50 hour maintenance procedure is a one time
sequence of procedures to be performed after the
first 50 hours of usage. After this interval, refer to
the maintenance inspection report for continued
scheduled maintenance.
Ford Models
• Oil, coolant, fuel, exhaust and vacuum
hoses - check for leaks, damage or
deterioration
• Electrical wiring - check for chafing or
damage
• Engine oil - replace
• Oil filter - replace
Kubota Models
• Engine oil - replace
• Oil filter - replace
Kohler Models
• Engine oil - replace
• Oil filter - replace
GM Models
• Cylinder head bolts - torque
40.5 ft-lbs / 55 Nm)
• Valve clearance - check/adjust
Required maintenance procedures and additional
engine information are available in the
manufacturer's manuals. Refer to Specifications,
Engine Operator and Maintenance Manuals.
Part No. 1272215GT Scissor Lifts 25
Page 38
Maintenance Manual March 2023
Commissioning Procedures
C-3
Perform 150 Hour Service
The 150 hour maintenance procedure is a one
time sequence of procedures to be performed after
the first 150 hours of usage. After this interval,
refer to the maintenance tables for continued
scheduled maintenance.
1 Perform the following maintenance
procedures:
Q-9 Visual Inspection of the Hydraulic Oil
Q-10 Inspect the Hydraulic Filters
26 Scissor Lifts Part No. 1272215GT
Page 39
March 2023 Maintenance Manual
Quarterly Maintenance Procedures
Q-1
Check for Open Bulletins and
Owner Registration
Genie specifications require that this procedure be
performed quarterly.
Completing required bulletins is essential to safe
machine operation. An important way to ensure
your machine has no open bulletins is to frequently
check the serial number of your Genie machine
against our bulletin database. Using the links
below you can view any open bulletins for your
machine(s) that require mandatory and immediate
work to be completed.
Note: If you are unable to access this information
on our websites, please contact your local Genie
representative using the contact information
provided on the back cover of this manual.
1 Locate the serial number plate or label on
your machine and document your Genie
machine serial number (exactly as its
displayed on the serial plate or label).
2 Confirm that Genie has the current machine
owner information on file by contacting our
warranty department at 1-800-536-1800 or
use the link included in this procedure to
download and complete a New Owner
Registration Form.
3 Using the link provided, check for current
bulletins for your machine(s).
Machines purchased in Australia:
Go to Australia Bulletins
(http://genielift.com.au/contact)
Machines purchased in ASIA, North America
and Latin America:
ASIA, North America and Latin America
Go to
Bulletins (https://www.gogenielift.com/)
1 Select "Customer Login" to login or select
"Request New Access" to create a new
account.
2 At the homepage, select "Unit Configuration"
and enter your machine serial number.
3 Press the "Lookup" button to view your
machine configuration and to check for open
bulletins.
4 Complete all required bulletins shown for your
specific machine serial number.
Machines purchased in Europe, Middle East,
Africa, and Russia:
Go to EMEAR Bulletins
(http://www.genielift.co.uk/en/sales-andsupport/bulletin-campaigns/index.htm)
1 Enter your machine serial number and press
search to check for open bulletins.
2 Complete all required bulletins shown for your
specific machine serial number.
1 Contact any one of the Genie Service centers
around Australia to arrange for factory trained
technicians to attend to your equipment
needs.
Part No. 1272215GT Scissor Lifts 27
Page 40
Maintenance Manual March 2023
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Bodily injury hazard. Batteries
contain acid. Avoid spilling or
contacting battery acid.
Neutralize battery acid spills with
baking
Quarterly Maintenance Procedures
Q-2
Battery Inspection
Genie specifications require that this procedure be
performed quarterly.
Proper battery condition is essential to good
engine and machine performance and operational
safety. Improper fluid levels or damaged cables
and connections can result in engine and
component damage and hazardous conditions.
6 Remove the battery vent caps and check the
specific gravity of each battery cell with a
hydrometer. Note the results.
7 Check the ambient air temperature and adjust
the specific gravity reading for each cell as
follows:
• Add 0.004 to the reading of each cell for
every 10° F / 5.5° C above 80° F / 26.7° C.
• Subtract 0.004 from the reading of each
cell for every 10° F / 5.5° C below 80° F /
26.7° C.
Result: All battery cells display an adjusted
specific gravity of 1.277 or higher. The battery
is fully charged. Proceed to step 11.
Result: One or more battery cells display a
specific gravity of 1.276 or below. Proceed to
step 8.
soda and water.
Note: Fully charge the batteries and allow the
batteries to rest 24 hours before performing this
procedure to allow the battery cells to equalize.
1 If equipped: Release the battery pack latch
and rotate the battery pack out and away from
the chassis.
2 Be sure that the battery cable connections are
free of corrosion.
Note: Adding terminal protectors and a corrosion
preventative sealant will help eliminate corrosion
on the battery terminals and cables.
3 Be sure that the battery retainers and cable
connections are tight.
4 Be sure that the battery separator wire
connections are tight (if equipped).
Models without maintenance-free or sealed
batteries:
5 Put on protective clothing and eye wear.
28 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Quarterly Maintenance Procedures
8 Perform an equalizing charge OR fully charge
the battery(s) and allow the battery(s) to rest
at least 6 hours.
9 Remove the battery vent caps and check the
specific gravity of each battery cell with a
hydrometer. Note the results.
10 Check the ambient air temperature and adjust
the specific gravity reading for each cell as
follows:
• Add 0.004 to the reading of each cell for
every 10° F / 5.5° C above 80° F / 26.7° C.
• Subtract 0.004 from the reading of each
cell for every 10° F / 5.5° C below 80° F /
26.7° C.
Result: All battery cells display a specific
gravity of 1.277 or greater. The battery is fully
charged. Proceed to step 11.
11 Check the battery acid level. If needed,
replenish with distilled water to 1/8 inch /
3 mm below the bottom of the battery fill tube.
Do not overfill.
12 Install the vent caps and neutralize any
electrolyte that may have spilled.
Result: One or more battery cells display a
specific gravity from 1.218 to 1.269. The
battery is still usable, but at a lower
performance. The battery will need to be
recharged more often. Proceed to step 11.
Result: One or more battery cells display a
specific gravity from 1.217 to 1.173. The
battery is approaching the end of its life.
Proceed to step 11.
Result: The difference in specific gravity
readings between cells is greater than 0.1 OR
the specific gravity of one or more cells is less
than 1.177. Replace the battery.
2 Inspect the battery charger plug and pigtail for
damage or excessive insulation wear.
Replace as required.
30 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Quarterly Maintenance Procedures
Q-3
Check the Module Tray Latch
Components
Genie specifications require that this procedure be
performed quarterly.
Maintaining the module tray latch components in
good condition is essential to good performance
and service life. Failure to detect worn out latch
components may result in module trays opening
unexpectedly, creating an unsafe operating
condition.
1 Inspect each module tray latch and related
components for wear. Tighten any loose
fasteners.
2 Lubricate each module tray latch. Using light
oil, apply a few drops to each of the springs
and to the sides of the latch mechanism.
Part No. 1272215GT Scissor Lifts 31
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Maintenance Manual March 2023
Mode
Led indicator
Condition
Balanced
Green
Voltage differential (< 0.3V)
Equalizing
Green
Voltage differential (> 0.3V)
Low or Over voltage
Auto shutdown
Green w/ Orange blinking
(
B
Low or Over voltage
Auto shutdown
Green w/ Orange blinking
(
24V to 48V battery pack beyond normal range (< 18V or >
33V)
24V circuit
Disconnected
No LED
24V lead not connected
Auto shutdown
Red
1) Voltage differential, 8V between battery packs.
OR
2) 48V
Quarterly Maintenance Procedures
Q-4
Inspect the Battery Balancer GS-69 DC
Genie specifications require that this procedure be
performed quarterly.
1 Open the battery compartment and locate the
fuse box.
2 Locate the LED indicator under the fuse box
and watch the LED for 5 seconds to verify the
battery balancer condition.
1 every 4 seconds)
2 every 4 seconds)
- Steady
- Steady
- Blinking (1 per sec)
- to 24V battery pack beyond normal range (< 18V or > 33V)
disconnected.
32 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in dea
serious injury. Remove all rings,
watches and other jewelry.
Quarterly Maintenance Procedures
Q-5
Inspect the Electrical Wiring
Genie specifications require that this procedure be
performed quarterly.
Maintaining electrical wiring in good condition is
essential to safe operation and good machine
performance. Failure to find and replace burnt,
chafed, corroded or pinched wires could result in
unsafe operating conditions and may cause
component damage.
th or
1 Inspect the following areas for burnt, chafed,
corroded, pinched and loose wires:
• Battery tray(s)
• Battery charger
• Scissor arms
• All wire harness connectors to platform
control box
• ECM (GCON) to platform controls (PCON)
• Platform controls
• Power to platform wiring
• Harness connections
• Hydraulic manifold wiring
• Contactor
• Limit switches
2 Inspect for a lite, even coating of dielectric
grease on all harness connections.
Note: Do not apply excessive amounts of dielectric
grease to harness connectors, pins or sockets.
Note: Inspection areas will vary by model.
• All wire harness connectors to ground
control box
• Ground control panel
• Hydraulic power unit module tray
• Hydraulic tray
• Engine tray
• Engine wiring harness
• Generator cable
Note: Do not apply dielectric grease to a engine
ECU/ECM or engine harness connectors.
Part No. 1272215GT Scissor Lifts 33
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Maintenance Manual March 2023
Electrocution/burn hazard.
Contact with electrically charged
circuits could
serious injury. Remove all rings,
watches and other jewelry.
Quarterly Maintenance Procedures
Q-6
Inspect the Electrical Contactors
- GS-30, GS-32, GS-46, GS-47,
GS-69 DC, GS-69 BE
Genie specifications require that this procedure be
performed quarterly.
Maintaining the electrical contactor in good
condition is essential to safe machine
performance. Failure to locate a worn or damaged
contactor could result in unsafe operating
conditions and may cause component damage.
1 GS-30, GS-32, GS-46, GS-47: Open the
battery tray and disconnect the Anderson
connector.
GS-69 DC, GS-69 BE: Open the contactor
box below the ground control box.
2 Locate the electrical contactor mounted on
the fuse bracket.
Q-7
Inspect the Voltage Inverter
(if equipped)
Genie specifications require that this procedure be
performed quarterly.
Perform this procedure more often if dusty
conditions exist.
Note: Refer to the information in this procedure
that is appropriate for the inverter that is installed
on your machine.
1 Inspect the inverter plug and pigtail for
damage or excessive insulation wear.
Replace as required.
2 Turn the key switch to the on position and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
3 Visually inspect the contact points of the
contactor for the following items:
• Excessive burns
• Excessive arcs
• Excessive pitting
result in death or
Note: Replace the contactor if any damage is
found.
Inverter type 1
1 status LED
2 display LED
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March 2023 Maintenance Manual
Quarterly Maintenance Procedures
Inverter type 2
3 right fault LED
4 left fault LED
5 25V LED
6 21V LED
3 Connect an appropriate power tool to the
inverter. Activate the tool.
Inverter type 1:
Result: Status LED blinks orange. Inverter
status is On or Off.
Result: Status LED blinks red. Inverter fault.
Result: Display LED blinks green. DC volts.
Result: Display LED blinks red. Power output.
Inverter type 2:
Result: The power tool should operate. There
may be a brief (0.5 second) delay if the power
tool has not been used in the previous
10 minutes.
If the left fault LED (REV_POL) is illuminated,
the inverter is connected to batteries with the
incorrect polarity. Correct the polarity issue
with the red wire to battery positive and the
black wire to battery negative. The inverter
will then operate correctly and begin
supplying AC power.
If the right fault LED (123) blinks one time, the
power draw is too high. The tool being used
requires too much power to operate or is
being used at or near the limit of the inverter
for an extended period of time. Reduce the
power draw. The inverter will then operate
correctly and begin supplying AC power.
If the right fault LED (123) blinks two times,
the Ground Fault Interrupt (GFI) has been
activated. A short circuit or partial short exists
between the AC hot and ground in the tool or
outlet. Check the tool for burnt, chafed,
corroded and loose wires, and inspect the tool
for internal moisture. Correct the short circuit
or moisture issue OR inspect the wiring in the
power-to-platform box. The inverter will then
operate correctly and begin supplying AC
power.
If right fault LED (123) blinks three times, the
inverter is overheated. Allow the inverter to
cool. The inverter will then operate correctly
and begin supplying AC power.
If the battery 25 volt fault LED (25V) blinks
one time, the battery voltage is over 30V.
Operate the machine to lower the voltage
level. The inverter will then operate correctly
and begin supplying AC power.
If the battery 21 volt fault LED (21V) blinks
one time, the battery voltage is less than 20V
DC. The inverter will continue to operate until
the battery voltage falls to 17.8V DC.
Part No. 1272215GT Scissor Lifts 35
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Maintenance Manual March 2023
Quarterly Maintenance Procedures
Q-8
Test the Flashing Beacons (if
equipped)
Genie specifications require that this procedure be
performed quarterly.
Flashing beacons are used to alert operators and
ground personnel of machine proximity and
motion. The flashing beacons are located on both
sides of the machine.
1 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position at both ground and platform controls.
Result: The beacons should flash.
2 Turn the key switch to platform controls.
Result: The beacons should flash.
Q-9
Visual Inspection of the Hydraulic
Oil
Genie specifications require that this procedure be
performed quarterly.
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil and a clogged suction strainer
may cause the machine to perform poorly and
continued use may cause component damage.
Extremely dirty conditions may require oil changes
to be performed more often. For hydraulic oil
specifications, Refer to Specifications, Hydraulic Specifications.
Note: Before replacing the hydraulic oil, the oil
may be tested by an oil distributor for specific
levels of contamination to verify that changing the
oil is necessary. Replace the oil when it fails the
test. Refer to Maintenance Procedure, Test or Replace the Hydraulic Oil.
36 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Quarterly Maintenance Procedures
1 Collect a sample of hydraulic oil and place in
a clear container. Visually inspect the
hydraulic oil for the following:
• Color: oil should be a clear, light-honey
colored
• Appearance, oil should be clear and not
cloudy or visibly distorts the view through
the sight glass or container
• Contains no particles, foreign objects, or
other contamination
• The hydraulic oil can be inspected by smell
(can smell “hot” but not “burnt”) or rubbing
between fingers (should feel viscous and
free of any rough feel due to particles)
If the hydraulic oil passes all of the above
inspections, continue the scheduled
maintenance intervals.
If the hydraulic oil fails any of the above
inspections, the hydraulic oil must be tested
by an oil distributor or replaced.
Q-10
Inspect the Hydraulic Filters
Genie specifications require that this procedure be
performed quarterly.
Maintaining the hydraulic filter in good condition is
essential to good system performance and safe
machine operation. The filter condition indicator
will show when the hydraulic flow is bypassing a
clogged filter. If the filter is not frequently checked
and replaced, impurities will remain in the
hydraulic system and cause component damage.
Note: There are four types of hydraulic filters: tank
return filter, medium pressure filter, high pressure
filter and drive motor case drain filter. The quantity
and type of filter(s) may vary by model.
Models with Filter Condition Indicator:
1 Start the engine from the ground controls.
2 Set the engine idle to high rpm (rabbit
symbol).
Note: If the hydraulic oil was not replaced at or
before the 2000 hour maintenance interval, the oil
must be tested every quarter by an oil distributor
until the oil fails the test and is replaced. After the
oil has been replaced, continue the scheduled
quarterly maintenance inspection.
Note: When replacing the hydraulic oil, it is
recommended that all hydraulic filters be replaced
at the same time.
3 Visually inspect the filter condition indicator.
Result: The filter condition indicator is
operating in the green area.
Result: The filter condition indicator is
operating in the red area. This indicates that
the hydraulic filter is being bypassed and the
filter should be replaced. Refer to
Maintenance Procedure, Replace the Hydraulic Filters.
Part No. 1272215GT Scissor Lifts 37
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Maintenance Manual March 2023
Bodily injury hazard. Do not
inspect while the engine is
running. Remove the key to
secure from operation.
Burn hazard.
engine components. Contact
with hot engine components
may result in severe burns.
Quarterly Maintenance Procedures
Models without Filter Condition Indicator:
Note: Models without a filter condition indicator
cannot be inspected. At the required maintenance
interval, replace the filters.
Hydraulic Tank Cap (if equipped):
Q-11
Check the Exhaust System Engine Models
Genie specifications require that this procedure be
performed quarterly.
1 Remove the breather cap from the hydraulic
tank.
2 Check for proper venting.
Result: Air passes through the breather cap.
Proceed to step 4.
Result: If air does not pass through the cap,
clean or replace the cap. Proceed to step 3.
Note: When checking for positive tank cap venting,
air should pass freely through the cap.
3 Using a mild solvent, carefully wash the cap
venting system. Dry using low pressure
compressed air. Repeat this procedure
beginning with step 2.
4 Install the breather cap onto the hydraulic
tank.
Maintaining the exhaust system is essential to
good engine performance and service life.
Operating the engine with a damaged or leaking
exhaust system can cause component damage
and unsafe operating conditions.
Beware of hot
1 Be sure that all nuts and bolts are tight.
2 Inspect all welds for cracks.
3 Inspect for exhaust leaks; i.e., carbon buildup
around seams and joints.
38 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Explosion and fire hazard.
Engine fuels are combustible.
Perform this procedure in an
open, well
from heaters, sparks, flames and
lighted tobacco. Always have an
approved fire extinguisher within
easy reach.
Quarterly Maintenance Procedures
Q-12
Inspect the Fuel Tank Check
Valve Venting System - GS-69 RT
Gas Models
Note: For machines located in the United States,
EPA Certificate 40 CFR Part 1060 requires that
the check valve be in proper working condition.
Genie specifications require that this procedure be
performed quarterly.
Free-breathing fuel tank check valve is essential
for good machine performance and service life. A
dirty or clogged check valve may cause the fuel
tank to not vent properly. Extremely dirty
conditions may require that the check valve be
inspected more often.
-ventilated area away
Q-13
Test the Fuel Select Operation Gasoline/LPG Models
Genie specifications require that this procedure be
performed quarterly.
The ability to select and switch between gasoline
and LPG fuels as needed is essential to safe
machine operation. A fuel selection can be made
when the engine is running or not. Switching
malfunctions and/or the failure of the engine to
start and run properly in both fuel modes and
through all idle speeds can indicate fuel system
problems that could develop into a hazardous
situation.
Note: Perform this test after checking the gasoline
and LPG fuel levels, and warming the engine to
normal operating temperature.
1 Start the engine from the platform controls
and allow the engine to run at low idle.
2 Press high idle button at the platform controls
to allow the engine to run at high idle.
1 Locate the check valve near the top of the fuel
tank.
2 Remove the check valve from the fuel lines.
3 Check for proper venting.
Result: Air passes through the check valve.
Proceed to step 4.
Result: If air does not pass through the check
valve, replace the check valve. Proceed to
step 4.
Note: When checking for positive venting, air
should pass freely through the check valve only in
one direction from the tank.
4 Securely install the check valve to the fuel
lines.
Part No. 1272215GT Scissor Lifts 39
Result: The high idle indicator light should be
on and the engine should start promptly and
operate smoothly in low and high idle.
3 Press high idle button again to return the
engine to low idle.
Result: The high idle indicator light should
turn off and the engine should return to low
idle.
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Maintenance Manual March 2023
Quarterly Maintenance Procedures
4 Press the engine stop button.
Result: The engine should stop.
5 Press the LPG operation button.
Result: The LPG indicator light should be on.
6 Start the engine and allow it to run at low idle.
7 Press high idle button to allow the engine to
run at high idle.
Result: The high idle indicator light should be
on and the engine should start promptly and
operate smoothly in low and high idle.
Note: The engine may hesitate momentarily and
then continue to run on the selected fuel if the fuel
source is switched while the engine is running.
Q-14
Check and Adjust the Engine
RPM - GS-69 RT, GS-84, GS-90
Engine specifications require that this procedure
be performed quarterly.
Maintaining the engine rpm at the proper setting
for both low and high idle is essential to good
engine performance and service life. The machine
will not operate properly if the rpm is incorrect and
continued use may cause component damage.
Note: The on-board self diagnostics incorporate a
built-in engine tachometer. The first two digits of
the engine RPM are displayed on the diagnostic
display when the start toggle switch is moved to
the start position with the engine running. Engine
RPM equals the first two digits multiplied by 100.
Note: These procedures do not apply to the
following engine models. The engine RPM is
controlled by the ECM and can only be adjusted
by re-programming the ECM. If RPM or service is
required, please contact Genie Product Support.
Ford Models: MSG-425 EFI
Deutz Models: D 2.9 L4
Note: Some procedures may require two people.
Note: For engine RPM information refer to
Specifications, Engine Specifications for your
engine model.
40 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Quarterly Maintenance Procedures
1 Start the engine from the ground controls.
2 Press and hold the start button or hold the
start toggle switch and check the engine RPM
on the diagnostic display.
Result: Low idle rpm is correct. Continue with
step 3.
Result: Low idle rpm is not correct. Follow the
low rpm idle procedure for your engine model.
3 Activate high idle (rabbit symbol).
4 Press and hold the start button or hold the
start toggle switch and check the engine RPM
on the diagnostic display.
Result: High idle rpm is correct.
Result: High idle rpm is not correct. Follow the
high rpm idle procedure for your engine
model.
3 Tighten the lock nut.
Kubota WG-972:
Low rpm idle adjustment:
1 Loosen the core clamp screw so the cable
moves freely.
2 Hold the throttle lever against the low idle
adjustment screw.
3 Turn the adjustment screw clockwise to
increase low rpm or counterclockwise to
decrease low rpm.
4 While holding the throttle lever against the low
idle adjustment screw, tighten the core clamp
screw.
High rpm idle adjustment:
1 Loosen the lock nut on the high idle
adjustment nut.
2 Turn the high idle adjustment nut clockwise to
increase the high rpm or counterclockwise to
decrease high rpm.
1 core clamp screw
2 throttle lever
3 low idle adjustment screw
4 lock nut
5 high idle adjustment nut
6 high idle solenoid
Part No. 1272215GT Scissor Lifts 41
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Maintenance Manual March 2023
4
2
1
3
Quarterly Maintenance Procedures
All other engine models:
Low rpm idle adjustment:
1 Loosen the lock nut on the low idle
adjustment screw.
2 Turn the adjustment screw clockwise to
increase low rpm or counterclockwise to
decrease low rpm.
3 Tighten the lock nut.
High rpm idle adjustment:
1 Loosen the lock nut on the high idle
adjustment nut.
2 Turn the high idle adjustment nut
counterclockwise to increase the rpm or
clockwise to decrease the rpm.
3 Tighten the lock nut.
Kubota D1105-E3B, D1105-E4B
Deutz D2011L03i
1 high idle solenoid
2 high idle adjustment nut
3 lock nut
4 low idle adjustment screw
Perkins 403D-11
1 high idle solenoid
2 low idle adjustment screw
3 lock nut
4 high idle adjustment nut
1 high idle solenoid
2 high idle adjustment nut
3 low idle adjustment screw
42 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Bodily injury hazard. An over
inflated tire can explode and
could cause death or serious
injury.
Tip
temporary flat tire repair
products.
1
2
Quarterly Maintenance Procedures
Q-15
Inspect the Tires and Wheels
(including torque)
Genie specifications require that this procedure be
performed quarterly.
Maintaining the tires and wheels, including proper
wheel fastener torque, is essential to safe
operation and good performance. Tire and/or
wheel failure could result in a machine tip-over.
Component damage may also result if problems
are not discovered and repaired in a timely
fashion.
-over hazard. Do not use
Note: The tires on some machines are foam-filled
or solid rubber and do not need air added to them.
1 Check all tire treads and sidewalls for cuts,
cracks, punctures and unusual wear.
-
Q-16
Confirm the Proper Brake
Configuration - GS-69, GS-84,
GS-90
Genie specifications require that this procedure be
performed quarterly.
Proper brake configuration is essential to safe
operation and good machine performance.
Hydrostatic brakes, hydraulically and electrically
released, spring-applied individual wheel brakes
can appear to operate normally when they are
actually not fully operational.
1 Check each drive hub disconnect cap to be
sure it is in the engaged position.
1 brake disengaged position
2 brake engaged position
2 Check each wheel for damage, bends and
cracked welds.
3 Models with Lug Nuts: Check each lug nut
for proper torque. Refer to Specifications,
Machine Specifications.
Models with Castle Nuts: Remove the cotter
pin and check the castle nut for proper torque.
Refer to Specifications, Tire and Wheel Specifications.
Note: Always replace the cotter pin with a new one
when removing the castle nut or when checking
the torque of the castle nut.
4 Check the pressure in each air-filled tire.
Part No. 1272215GT Scissor Lifts 43
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Maintenance Manual March 2023
Collision hazard. Be sure that the
machine is not in free
partial free
Refer to maintenance procedure,
Confirm the Proper Brake
Configuration
Quarterly Maintenance Procedures
Q-17
Test the Drive Brakes
Genie specifications require that this procedure be
performed quarterly.
Proper brake action is essential to safe machine
operation. The drive brake function should operate
smoothly, free of hesitation, jerking and unusual
noise. Hydraulically and electrically released,
spring applied individual wheel brakes can appear
to operate normally when they are actually not fully
operational.
-wheel configuration.
.
Note: Select a test area that is firm, level and free
of obstructions.
Note: Be sure the platform deck extension deck is
fully retracted and the platform is in the stowed
position.
1 Mark a test line on the ground for reference.
2 Choose a point on the machine (i.e., contact
patch of a tire) as a visual reference for use
when crossing the test line.
3 Bring the machine to top drive speed before
reaching the test line. Release the drive
joystick when your reference point on the
machine crosses the test line.
4 Measure the distance between the test line
and your machine reference point. Refer to
Specifications, Performance Specifications.
-wheel or
Q-18
Test the Drive Speed – Stowed
Position
Genie specifications require that this procedure be
performed quarterly.
Proper drive function is essential to safe machine
operation. The drive function should respond
quickly and smoothly to operator control. Drive
performance should also be free of hesitation,
jerking and unusual noise over the entire
proportionally controlled speed range.
Note: Perform this procedure with the machine on
a firm, level surface that is free of obstructions.
Note: Perform this procedure with the machine in
the stowed position.
1 Create start and finish lines by marking two
lines on the ground 40 feet / 12.2 m apart.
2 Choose a point on the machine (i.e., contact
patch of a tire) as a visual reference for use
when crossing the start and finish lines.
Note: Be sure the low drive speed light (if
equipped) is off. If the low dive speed light is on,
press the drive speed select button to turn off the
low drive speed function.
3 Bring the machine to top drive speed before
reaching the start line. Begin timing when
your reference point on the machine crosses
the start line.
4 Continue at full speed and note the time when
the machine reference point crosses the finish
line. Refer to Specifications, Drive Speed Specifications.
Note: The brakes must be able to hold the
machine on any slope it is able to climb.
44 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Crushing hazard. Keep hands
clear of the safety arm when
lowering the platform.
Quarterly Maintenance Procedures
Q-19
Test the Drive Speed - Raised
Position
Genie specifications require that this procedure be
performed quarterly.
Proper drive function is essential to safe machine
operation. The drive function should respond
quickly and smoothly to operator control. Drive
performance should also be free of hesitation,
jerking and unusual noise over the entire
proportionally controlled speed range.
1 Create start and finish lines by marking two
lines on the ground 40 feet / 12.2 m apart.
2 GS-30, GS-32, GS-46, GS-47: Raise the
platform approximately 4 feet / 1,2 m.
GS-69: Raise the platform approximately 6 ft /
2 m.
GS-84, GS-90: Raise the platform
approximately 12 feet / 3,6 m.
3 Choose a point on the machine (i.e., contact
patch of a tire) as a visual reference for use
when crossing the start and finish lines.
Q-20
Test the Down Limit Switch,
Level Sensor and Pothole Limit
Switches - GS-30, GS-32, GS-46,
GS-47
Genie specifications require that this procedure be
performed quarterly.
Maintaining the limit switches is essential to safe
operation and good machine performance.
Operating the machine with a faulty limit switch
could result in reduced machine performance and
a potentially unsafe operating condition.
Note: Perform this procedure with the machine on
a firm, level surface that is free of obstructions.
1 Remove the platform controls from the
platform.
2 Raise the platform 7 to 8 feet / 2,1 to 2,4 m.
3 Lift the safety arm, move it to the center of the
scissor arm and rotate down to a vertical
position.
4 Lower the platform onto the safety arm.
4 Bring the machine to top drive speed before
reaching the start line. Begin timing when
your reference point on the machine crosses
the start line.
5 Continue at full speed and note the time when
the machine reference point crosses the finish
line. Refer to Specifications, Drive Speed Specifications.
Part No. 1272215GT Scissor Lifts 45
5 Turn the selector/key switch to the off
position.
6 Tag and disconnect the platform control box
at the platform.
7 Follow the platform control cable down the
scissor stack to the alarm bracket on the
chassis deck. Tag and disconnect the
platform control cable from the GCON power
control harness at the 6-pin Deutsch
connector.
8 Securely install the platform control box
harness plug into the 6-pin Deutsch connector
of the GCON power control harness.
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Maintenance Manual March 2023
Quarterly Maintenance Procedures
Down Limit Switch
9 Disable the down limit switch. Loosen the
fastener securing the roller arm to the limit
switch, and rotate the roller arm 90 degrees in
a downwards direction. Do not activate the
switch contacts.
10 Turn the selector/key switch to platform
control.
11 Raise the platform and rotate the safety arm
to the stowed position.
12 Working at the platform controls, lower the
platform to the stowed position.
Result: The ground controls LCD displays
"PHS: POTHOLE GUARDS STUCK" and the
platform controls LED displays "PHS". The
alarm sounds and the lift function operates.
The machine is functioning properly. Refer to
the Operation Indicator Codes below.
Result: The ground controls LCD does not
display "PHS: POTHOLE GUARDS STUCK"
and the platform controls LED does not
display "PHS". The alarm does not sound and
the lift function does not operate. Replace the
down limit switch.
13 Attempt to drive and steer the machine.
Result: The ground controls LCD displays
"PHS: POTHOLE GUARDS STUCK" and the
platform controls LED displays "PHS". The
alarm sounds, and the drive and steer
functions do not operate. The machine is
functioning properly.
Result: The ground controls LCD does not
display "PHS: POTHOLE GUARDS STUCK"
and the platform controls LED does not
display "PHS". The alarm does not sound,
and the steer and drive functions operate.
Replace the down limit switch.
14 Raise the platform to approximately 1 ft /
30 cm.
Result: The ground controls LCD displays
"PHS: POTHOLE GUARDS STUCK" and the
platform controls LED displays "PHS". The
alarm sounds. The machine is functioning
properly.
Result: The ground controls LCD does not
display "PHS: POTHOLE GUARDS STUCK"
and the platform controls LED does not
display "PHS". The alarm does not sound.
Replace the down limit switch.
LCD display
LED display
46 Scissor Lifts Part No. 1272215GT
Page 59
March 2023 Maintenance Manual
Crushing hazard. Keep hands
clear of the safety arm when
lowering the platform.
Quarterly Maintenance Procedures
15 Raise the platform 7 to 8 feet / 2,1 to 2,4 m.
16 Lift the safety arm, move it to the center of the
scissor arm and rotate down to a vertical
position.
17 Lower the platform onto the safety arm.
18 Turn the selector/key switch to the off
position.
19 Enable the down limit switch. Loosen the
fastener securing the roller arm to the limit
switch, and rotate the roller arm 90 degrees in
a upwards direction. Do not activate the
switch contacts.
20 Turn the selector/key switch to ground control.
21 Raise the platform and rotate the safety arm
to the stowed position.
22 Lower the platform to the stowed position.
Level Sensor
23 Move the machine onto a grade which
exceeds the rating of the level sensor. Refer
to the serial label on the machine.
24 Standing on the up-hill side of the machine,
attempt to raise the platform to approximately
8 feet / 2,4 m.
Result: The ground controls LCD displays
"LL: MACHINE TILTED" and the platform
controls LED displays "LL". The alarm sounds
and the platform stops lifting after the pothole
guards are deployed. The machine is
functioning properly. Refer to the Operation
Indicator Codes below.
Result: The ground controls LCD does not
display "LL: MACHINE TILTED" and the
platform controls LED does not display "LL".
The alarm does not sound and the platform
continues to lift after the pothole guards are
deployed. Adjust or replace the level sensor.
LCD display
LED display
Part No. 1272215GT Scissor Lifts 47
Page 60
Maintenance Manual March 2023
Quarterly Maintenance Procedures
25 Standing on the up-hill side of the machine,
attempt to drive and steer the machine.
28 Attempt to raise the platform to approximately
8 feet / 2,4 m.
Result: The ground controls LCD displays
"LL: MACHINE TILTED" and the platform
controls LED displays "LL". The alarm
sounds, and the machine will not steer or
drive. The machine is functioning properly.
Result: The ground controls LCD does not
display "LL: MACHINE TILTED" and the
platform controls LED does not display "LL".
The alarm does not sound and the steer and
drive functions operate. Adjust or replace the
level sensor.
26 Lower the platform to the stowed position.
Move the machine onto a firm, level surface.
Pothole Limit Switches
27 Place a wooden block approximately 2 inches
/ 5 cm tall under the right pothole guard.
Result: The pothole guard contacts the block
and does not fully deploy. The ground
controls LCD displays "PHS: POTHOLE
GUARDS STUCK" and the platform controls
LED displays "PHS". The alarm sounds and
the platform will lift to 8 feet / 2,4 m or beyond.
The machine is functioning properly. Refer to
the Operation Indicator Codes below.
Result: The pothole guard contacts the block
and does not fully deploy. The ground
controls LCD does not display "PHS:
POTHOLE GUARDS STUCK" and the
platform controls LED does not display "PHS".
The alarm does not sound and the machine
will continue to lift the platform after the
pothole guards are deployed. Adjust or
replace the pothole limit switch.
LCD display
LED display
48 Scissor Lifts Part No. 1272215GT
Page 61
March 2023 Maintenance Manual
Crushing hazard. Keep hands
clear of the safety arm when
lowering the platform.
Quarterly Maintenance Procedures
29 Attempt to drive and steer the machine.
Result: The ground controls LCD displays
"PHS: POTHOLE GUARDS STUCK" and the
platform controls LED displays "PHS". The
alarm sounds, and the machine will not steer
or drive. The machine is functioning properly.
Result: The ground controls LCD does not
display "PHS: POTHOLE GUARDS STUCK"
and the platform controls LED does not
display "PHS". The alarm does not sound and
the steer and drive functions operate. Adjust
or replace the down limit switch.
30 Lower the platform to the stowed position and
remove the block under the right pothole
guard.
31 Repeat this procedure beginning with step
30 for the left pothole guard.
32 Lower the platform to the stowed position,
remove the block under the left pothole guard.
33 Raise the platform 7 to 8 feet / 2,1 to 2,4 m.
34 Lift the safety arm, move it to the center of the
scissor arm and rotate down to a vertical
position.
Q-21
Test the Platform Gate Proximity
Switches and the
Extension Deck Limit Switch GS-2646 AV, GS-2646 AV35
Genie specifications require that this procedure be
performed quarterly.
Maintaining the limit switches is essential to safe
operation and good machine performance.
Operating the machine with a faulty limit switch
could result in reduced machine performance and
a potentially unsafe operating condition.
Note: Perform this procedure with the machine on
a firm, level surface that is free of obstructions.
Platform Gate Proximity Switches:
1 Raise the platform approximately 8 feet /
2.4 m from the ground.
2 Open the rear entry gate and prop open.
35 Lower the platform onto the safety arm.
36 Turn the selector/key switch to the off
position.
37 Disconnect the platform controls (PCON) from
the platform control cable.
38 Securely install the connector of the GCON
power control harness into the platform
control cable.
39 Working at the platform, securely install the
connector from the platform controls (PCON)
into the platform control cable.
40 Raise the platform and rotate the safety arm
to the stowed position.
41 Turn off all machine power.
Part No. 1272215GT Scissor Lifts 49
Page 62
Maintenance Manual March 2023
Quarterly Maintenance Procedures
3 Attempt to raise the platform for
approximately 2 seconds and release.
Attempt to lower the platform for
approximately 2 seconds and release.
Result: The platform up and down functions
do not operate. The ground controls LCD
displays "Fd: FUNCTION DISABLED" and the
platform controls LED displays "Ld". The
machine is functioning properly.
Result: The platform up and down functions
operate.The ground controls LCD does not
display "Fd: FUNCTION DISABLED" and the
platform controls LED does not display "Ld".
Adjust or replace the rear entry proximity
switch.
4 Attempt to drive and steer the machine.
Result: The drive and steer functions do not
operate.The ground controls LCD displays
"Fd: FUNCTION DISABLED" and the platform
controls LED displays "Ld". The machine is
functioning properly.
Result: The drive and steer functions operate.
The ground controls LCD does not display
"Fd: FUNCTION DISABLED" and the platform
controls LED does not display "Ld". Adjust or
replace the rear entry proximity switch.
5 Press and hold the powered extension deck
function enable button (if equipped).
6 Press the powered extension deck extend
button for approximately 2 seconds and
release. Press the powered extension deck
retract button for approximately 2 seconds
and release.
Result: The powered extension deck extend
and retract functions do not operate. The
ground controls LCD displays "Fd:
FUNCTION DISABLED" and the platform
controls LED displays "Ld". The machine is
functioning properly.
Result: The powered extension deck extend
and retract functions operate.The ground
controls LCD does not display "Fd:
FUNCTION DISABLED" and the platform
controls LED does not display "Ld". Adjust or
replace the rear entry proximity switch.
7 Fully close the rear entry gate.
8 Open the front entry gate and prop open.
9 Repeat steps 3 through 6.
10 Fully close the front entry gate.
50 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Quarterly Maintenance Procedures
Extension Deck Limit Switch
11 Deploy the manual extension deck or the
powered extension deck (if equipped),
approximately 2 ft / 0.6 m.
12 Attempt to raise the platform for
approximately 2 seconds and release.
Attempt to lower the platform for
approximately 2 seconds and release.
Result: The platform up and down functions
do not operate. The ground controls LCD
displays "dE: DECK EXTENDED" and the
platform controls LED displays "dE". The
machine is functioning properly.
Result: The platform up and down functions
operate. The ground controls LCD does not
display "dE: DECK EXTENDED" and the
platform controls LED does not display "dE".
Adjust or replace the extension deck limit
switch.
13 Attempt to drive and steer the machine.
Result: The drive and steer functions do not
operate. The ground controls LCD displays
"dE: DECK EXTENDED" and the platform
controls LED displays "dE". The machine is
functioning properly.
Result: The drive and steer functions operate.
The ground controls LCD displays "dE: DECK
EXTENDED" and the platform controls LED
displays "dE". Adjust or replace the extension
deck limit switch.
Part No. 1272215GT Scissor Lifts 51
Page 64
Maintenance Manual March 2023
Torque specifications
Drive hub mounting bolts
lbs
244 Nm
1
Annual Maintenance Procedures
A-1
Check the Drive Hub Oil Level
and Fastener Torque - GS-69, GS84, GS-90
Genie specifications require that this procedure be
performed annually.
Failure to maintain proper drive hub oil levels may
cause the machine to perform poorly and
continued use may cause component damage.
1 Drive the machine to rotate the hub until the
plugs are located one on top and the other at
90 degrees.
4 Install the plug(s) into the drive hub.
5 Check the torque of the drive hub mounting
fasteners. Refer to Torque Specifications,
Tires and Wheels.
6 Repeat this procedure for each drive hub.
180 ft-
1 drive hub plugs
2 Remove the plug located at 90 degrees and
check the oil level.
Result: The oil level should be even with the
bottom of the plug hole.
3 If necessary, remove the top plug and add oil
until the oil level is even with the bottom of the
side plug hole.
52 Scissor Lifts Part No. 1272215GT
Page 65
March 2023 Maintenance Manual
GS
econds
GS
econds
GS
econds
Tip-over hazard. Failure to
repair or replace the function
pump as instructed could
compromise the stabili
machine resulting in death or
serious injury.
Annual Maintenance Procedures
A-2
Test the Function Pump
GS-69 BE and GS-69 DC
Genie specifications require that this procedure be
performed annually.
Proper pump function is essential to safe oscillate
operation and machine function.
Note: Perform this procedure on a firm, level
surface with the platform in the stowed position
and the platform extension deck fully retracted.
1 Lower the platform to the stowed position.
2 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position at both ground and platform controls.
3 At the ground controls, record the time it takes
to fully raise the platform.
Result: The time to fully elevate the platform is
at or less than the table shown below. The
efficiency of the function pump is good.
-2669 55 s
-3369 60 s
-4069 94 s
Result: The time to fully elevate the platform
is greater than the table shown above, Refer
to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How to Set Up the Machine from Ground
Controls. Repeat the above procedure.
A-3
Test the Oscillate Axle - GS-90
Genie specifications require that this procedure be
performed annually.
The oscillate system is designed so that all four
tires maintain firm contact to the ground on unlevel
terrain improving traction and machine stability.
Proper axle oscillation is essential to safe machine
operation. If the axle oscillation system is not
operating correctly, the stability of the machine is
compromised and it may tip over.
Note: Perform this procedure on a firm, level
surface with the platform in the stowed position in
a safe, secure location away from obstacles and
with an area working height of 20 ft / 6 m.
Note: The outrigger, if equipped, must be fully
retracted.
1 Disconnect and remove the platform controller
from the platform.
2 Open the ground control panel door and
locate the cable connector below the ground
controls. Unplug the control cable from the
ground control plug and connect the platform
controller to the cable.
3 Remove the two retaining fasteners from the
ground control panel and set aside. Tilt the
control panel out towards you exposing the
wiring and relays.
Note: If the above times can not be achieved, the
machine must be tagged and removed from
service until the function pump is repaired or
replaced.
Part No. 1272215GT Scissor Lifts 53
ty of the
Page 66
Maintenance Manual March 2023
Annual Maintenance Procedures
Test the down limit switch and relay K11
Note: Perform this test using the platform controls
while standing on the ground as described below.
4 At the ground controls, turn the key switch to
platform controls and pull out the red
Emergency Stop button.
5 Pull out the red Emergency Stop button on
the platform controller and start the engine.
6 Using a volt meter, check for voltage by
connecting the positive lead to relay K11,
terminal 30 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 12V DC or
greater.
Result: The volt meter reads 0V DC. Check
the down limit switch LS6.
7 Using a volt meter, check for voltage by
connecting the positive lead to relay K11,
terminal 87 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 0V DC.
Result: The volt meter reads 12V DC or
greater. Check the green wire on terminal
86 for voltage. If yes, the drive controller is
activated or the ECU needs to be replaced.
8 Press the drive speed button and select high
speed drive mode.
Result: The green LED should go off.
Result: The green LED stays on. Check the
down limit switch LS6 for an open circuit.
9 Raise the platform until the green LED comes
on.
10 Using a volt meter, check for voltage by
connecting the positive lead to relay K11,
terminal 30 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 0V DC.
Result: The volt meter reads 12V DC or
greater. Check the down limit switch for a
closed circuit.
11 Using a volt meter, check for voltage by
1 ground control side
2 down limit switch LS6
3 load sense delay LS25 (CE models only)
4 hydraulic tank side
connecting the positive lead to relay K11,
terminal 87 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 0V DC.
Result: The volt meter reads 12V DC or
greater. Check the relay K11 for an internal
short to power.
12 Lower the platform to the stowed position.
54 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Crushing Hazard. Stay clear of
the machine when performing
this procedure. Movement of
machine could result in death or
serious injury.
Annual Maintenance Procedures
Oscillate Float Test
Note: The following procedure will require two
people.
13 Using a volt meter, check for voltage by
connecting the positive lead to terminals D2,
D3, D4 and D5. Connect the negative lead to
the ground strip terminal. Slowly move the
drive controller just off center.
the
Result: The volt meter should read 12V DC or
greater.
Result: The volt meter reads 0V DC. Do not
proceed. Contact Genie Product Support for
assistance.
Test the Oscillating Axle Limit Switches
14 Using the jumper wire, jump from relay K12,
terminal 87A to terminal D3 below the white
wire.
Result: The right steer end oscillate cylinder
will extend causing the machine to tilt towards
you. This simulates closing the left rear limit
switch causing the right oscillate cylinder to
extend.
Result: No movement. Verify there is voltage
on the jumper wire. Check for voltage on relay
K12, terminal 30.
Oscillate operates in the incorrect direction.
Do not proceed. Contact Genie Product
Support.
15 Using the jumper wire, jump from relay K12,
terminal 87A to terminal D4 below the blue
wire.
Result: The left steer end oscillate cylinder will
extend causing the machine to tilt away from
you. This simulates closing the right rear limit
switch causing the left oscillate cylinder to
extend.
Result: No movement. Verify there is voltage
on the jumper wire. Check for voltage on relay
K12, terminal 30.
Oscillate operates in the incorrect direction.
Do not proceed. Contact Genie Product
Support.
Note: Remove the jumper wire from relay K12 and
terminal D4 after the limit switch activates the
oscillate in the opposite direction.
16 Using a volt meter, check for voltage by
connecting the positive lead to relay K12,
terminal 87 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 0V DC.
Result: The volt meter reads 12V DC or
greater. Check terminal 86 for voltage. If yes,
the drive controller is activated or the ECU
needs to be replaced.
17 Move the drive controller just of center in a
safe driving direction.
Result: The volt meter should read 12V DC or
greater.
Result: The volt meter reads 0V DC. Do not
proceed. Contact Genie Product Support for
assistance.
Note: Remove the jumper wire from relay K12 and
terminal D3 after the limit switch activates the
oscillate in the opposite direction.
Part No. 1272215GT Scissor Lifts 55
Page 68
Maintenance Manual March 2023
Annual Maintenance Procedures
18 Push in the red Emergency Stop button on
the platform controller and on the ground
controls. Turn the key switch to the off
position.
19 Close the ground control panel and secure
using the fasteners removed in Step 3 and
securely tighten.
20 Disconnect the platform controller from the
control cable and securely connect the control
cable to the ground control plug. Close the
ground control panel door.
21 Install the platform controller in the platform.
22 Perform the function tests. Refer to the
Operator’s Manual on your machine.
23 Return the machine to service.
A-4
Test the Down Limit Switch
Descent Delay (if equipped) GS69, GS-84 and GS-90
Genie specifications require that this procedure be
performed annually.
Check the Down Limit Switch
Rocker Arm Orientation
1 Turn the key switch to ground controls and
pull out the red Emergency Stop button to the
on position at both ground and platform
controls.
2 Raise the platform approximately 16 feet /
5 m.
3 Push in the red Emergency Stop button to the
off position.
4 Verify the limit switch rocker arms are
adjusted 30° from the vertical position.
56 Scissor Lifts Part No. 1272215GT
Page 69
March 2023 Maintenance Manual
GS
nches
m
GS-3369
nches
m
GS
nches
m
GS
GS
n
m
GS
n
m
GS
n
m
Annual Maintenance Procedures
Check the Descent Delay
Function
Check the Down Limit Switch
Height
1 GS-69: Raise the platform approximately
10 feet / 3 m.
GS-84 and GS-90: Raise the platform
approximately 15 ft / 4.6 m.
2 Lower the platform until the down limit switch
activates and the platform stops lowering.
Quickly release the controls and then
immediately attempt to lower the platform to
the stowed position.
Result: The platform will not lower for 4 to
6 seconds. Release the joystick and proceed
to step 3
Result: The platform continues to lower.
Confirm that the descent delay option has
been selected to on. Refer to Repair
Procedure in the appropriate Service and
Repair Manual for your machine, How to Setup the Machine or Software Configuration.
Repeat this procedure.
3 Lower the platform to the stowed position.
1 GS-69: Raise the platform approximately
10 feet / 3 m.
GS-84 and GS-90: Raise the platform
approximately 15 ft / 4.6 m.
2 Lower the platform until the down limit switch
activates and the platform stops lowering.
3 Push in the red Emergency Stop button to the
off position.
4 Measure the distance between the working
surface and the platform deck.
-2669
-4069
-3384
-3390
-4390
-5390
63 to 69 i
1.6 to 1.75
66 to 72 i
1.7 to 1.83
76 to 82 i
1.9 to 2.1
95 to 107 i
2.4 to 2.7
106 to 118 i
2.7 to 3.0
118 to 130 i
3.0 to 3.3
Part No. 1272215GT Scissor Lifts 57
Page 70
Maintenance Manual March 2023
Crushing hazard. Keep hands
clear of the safety arm when
lowering the platform.
A
B
C
+
_
V
1
3
4
2
Annual Maintenance Procedures
A-5
Test the Platform Overload
Pressure Transducer and
Platform Height Sensor - GS-30,
GS-32, GS-46, GS-47 (if equipped)
Genie specifications require that this procedure be
performed annually OR when the machine fails to
lift the maximum rated load.
Testing the platform overload pressure transducer
and platform height sensor regularly is essential to
safe machine operation. Continued use of an
improperly operating platform overload pressure
transducer or platform height sensor could result in
the system not sensing an overloaded platform
condition. Machine stability could be compromised
resulting in the machine tipping over.
Note: Perform this procedure with the machine on
a firm, level surface that is free of obstructions.
4 Lower the platform onto the safety arm.
5 At the ground controls, turn the key switch to
the off position and push in the red
Emergency Stop button to the off position.
Pressure Transducer
6 Working at the barrel end of the lift cylinder,
follow the pressure transducer cable down the
scissor stack to its end point, at the chassis
deck.
7 Using the positive post of a multimeter probe,
securely fit the post into pin C of the pressure
transducer cable rubber boot. Refer to the
illustration below.
8 Using the negative post of a multimeter probe,
securely fit the post into pin B of the pressure
transducer cable rubber boot. Refer to the
illustration below.
1 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position at both ground and platform controls.
2 Raise the platform 7 to 8 feet / 2,1 to 2,4 m.
3 Lift the safety arm, move it to the center of the
scissor arm and rotate down to a vertical
position.
1 negative post
2 positive post
3 pressure transducer cable
4 pressure transducer sensor harness
58 Scissor Lifts Part No. 1272215GT
Page 71
March 2023 Maintenance Manual
A
B
C
+
_
V
1
3
4
2
Annual Maintenance Procedures
9 Turn the key switch to ground controls and
pull out the ground controls red Emergency
Stop button to the on position.
10 Using the multimeter, measure the voltage
reading of the pressure transducer at pin C
and B.
transducer is between 1V and 5V. The
pressure transducer is functioning properly.
Result: The voltage reading of the pressure
transducer is between 0V and 1V. The
pressure transducer is not functioning
properly. Replace the pressure transducer.
Refer to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How to Remove the Pressure Transducer (if
equipped).
Platform Height Sensor
13 Working at platform height sensor assembly,
follow the platform height sensor cable to its
end point at the chassis deck.
14 Using the positive post of a multimeter probe,
securely fit the post into pin C of the platform
height sensor cable rubber boot. Refer to the
illustration below.
15 Using the negative post of a multimeter probe,
securely fit the post into pin B of the platform
height sensor cable rubber boot. Refer to the
illustration below.
GS-3232, GS-4047
Result: The voltage reading of the pressure
transducer is between 0.2V and 6.25V. The
pressure transducer is functioning properly.
Result: The voltage reading of the pressure
transducer is between 0V and 0.2V or greater
than 6.25V. The pressure transducer is not
functioning properly. Replace the pressure
transducer. Refer to Repair Procedure in the
appropriate Service and Repair Manual for
your machine, How to Remove the Pressure Transducer (if equipped).
11 At the ground controls, turn the key switch to
the off position and push in the red
Emergency Stop button to the off position.
12 Remove the probes from the rubber boot of
the pressure transducer cable.
1 negative post
2 positive post
3 platform height sensor cable
4 GCON platform height sensor wire
harness
16 Turn the key switch to ground controls and
pull out the ground controls red Emergency
Stop button to the on position.
Part No. 1272215GT Scissor Lifts 59
Page 72
Maintenance Manual March 2023
Torque specifications
lbs
60 Nm
1
2
3
1
2
3
Annual Maintenance Procedures
17 Using the multimeter, measure the voltage
reading of the pressure transducer at pin C
and B.
Result: The voltage reading of the platform
height sensor is between 1V and 4V. The
platform height sensor is functioning properly.
Result: The voltage reading of the platform
height sensor is 0V or above 5V. The platform
height sensor is not functioning properly.
Replace the platform height sensor. Refer to
Repair Procedure in the appropriate Service
and Repair Manual for your machine, How to
Disassemble the Platform Height Sensor
Assembly (if equipped).
18 At the ground controls, turn the key switch to
the off position and push in the red
Emergency Stop button to the off position.
19 Remove the probes from the rubber boot of
the platform height sensor cable.
20 Turn the key switch to ground controls and
pull out the ground controls red Emergency
Stop button to the on position.
A-6
Check the Steer Yoke King Pin
Fastener Torque - GS-84, GS-90
Genie specifications require that this procedure be
performed annually.
Maintaining proper torque is essential to safe
machine operation. Improper bolt torque could
result in an unsafe operating condition and
component damage.
Note: Perform this procedure on both sides of the
steer axle.
1 Check the upper and lower steer yoke king
pin fastener torque.
®
Note: Loctite
to the retaining fasteners whenever they are
removed or replaced.
243™ threadlocker must be applied
21 Raise the platform to approximately 1 ft /
30 cm.
22 Return the safety arm to the stowed position.
23 Lower the platform to the stowed position.
24 Turn the key switch to the off position.
1 retaining fasteners
2 rod end
3 king pin
44 ft-
60 Scissor Lifts Part No. 1272215GT
Page 73
March 2023 Maintenance Manual
Programmed Maintenance Procedures
P0-1
Inspect the Engine Air Filter - GS69 RT
Genie specifications require that this procedure be
performed every 40 hours or weekly, whichever
comes first.
Maintaining the engine air filter in good condition is
essential to good engine performance and service
life. Failure to perform this procedure can lead to
poor engine performance and component damage.
1 Kubota WG972 models: Remove the engine
tray flange nut, located under the radiator on
the engine pivot tray. Swing the engine pivot
tray out and away from the machine for
access.
2 Kubota D1105 models: Remove the wing nut
securing the end cap to the air cleaner
canister. Remove the end cap.
6 Inspect the air filter element. If needed, blow
from the inside out using low pressure dry
compressed air, or carefully tap out dust.
7 Securely install the filter element into the
canister.
8 Install the gasket and baffle (if equipped), and
end cap onto the air cleaner canister.
Note: Be sure the dust discharge valve is facing
down when installed.
9 Secure the end cap to the air cleaner
cannister with the retaining clamps.
10 Kubota WG972 models: Swing the engine
pivot tray back to its original position and
secure with the flange nut.
All other models: Disconnect the retaining
clamps securing the end cap to the air cleaner
canister. Remove the end cap.
3 Remove the air filter element.
4 Clean the inside of the air filter canister and
the canister gasket with a damp cloth.
5 Inspect for and remove any blockage or
debris from the intake air passages.
Part No. 1272215GT Scissor Lifts 61
Page 74
Maintenance Manual March 2023
Grease Specifications
Chevron Ultra
or equivalent
Programmed Maintenance Procedures
P0-2
Grease the Steer Yokes - GS-30,
GS-32, GS-46, GS-47
Genie specifications require that this procedure be
performed every 100 hours of operation.
Regular application of lubrication to the steer
yokes is essential to good machine performance
and service life. Continued use of an insufficiently
greased steer yoke will result in component
damage.
1 Locate the grease fitting on the top of the
steer yoke.
2 Pump multipurpose grease into the steer yoke
until the steer yoke is full and grease is being
forced past the bearings. Repeat this step for
the other steer yoke.
-duty grease, EP NLGI 2 (lithium based)
62 Scissor Lifts Part No. 1272215GT
Page 75
March 2023 Maintenance Manual
Deutz D2011L03i
Deutz D 2.9 L4
∅ =
Programmed Maintenance Procedures
P0-3
Deutz Engine Maintenance – Under 1000 Hours
Additional engine maintenance is required. Refer to the Programmed Maintenance Inspection Report for
the specific intervals that apply.
Required maintenance procedures and additional engine information are available in the manufacturer's
manuals. Refer to Specifications, Engine Operator and Maintenance Manuals.
This maintenance schedule applies to the following Deutz Engines:
Deutz Engines Hour Intervals
Procedure
Oil level - check
Coolant level - check
Oil, fuel and coolant systems - check for leaks
Fuel system filter/water separator – inspect/drain
Air filter discharge valve - clean
Not required
Daily 250 500
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
Exhaust system - inspect
Check / clean the oil cooler and cooling fins
Air filter - replace
Valve clearance - check/adjust
Engine coolant - test/add
Air intake pipes - inspect
V-belts - inspect
Fuel filter / separator - replace
∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅
Part No. 1272215GT Scissor Lifts 63
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Maintenance Manual March 2023
∅ =
Programmed Maintenance Procedures
P0-4
Ford Engine Maintenance – Under 1000 Hours
Additional engine maintenance is required. Refer to the Programmed Maintenance Inspection Report for
the specific intervals that apply.
Required maintenance procedures and additional engine information are available in the manufacturer's
manuals. Refer to Specifications, Engine Operator and Maintenance Manuals.
Ford MSG 425 Hour Intervals
Procedure
Oil level - check
Coolant level - check
Oil, fuel and coolant systems - check for leaks
Air filter discharge valve - clean
Oil, coolant, fuel, exhaust and vacuum hoses - check for leaks, damage or
deterioration
Not required
Daily 100 200 400 800
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅
∅ ∅ ∅
Electrical wiring - check for chafing or damage
Engine belts - check/adjust
Fuel filters - check/replace
Engine oil - replace
Oil filter - replace
Air filter - replace
Spark plugs - clean/adjust/replace
Loose or missing fasteners - tighten/replace
PCV valve - check
PCV hoses, tubes and fittings - clean
∅
∅ ∅
∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅
∅ ∅
∅ ∅
∅
∅
∅
∅
∅
64 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
∅ =
Programmed Maintenance Procedures
P0-5
Kohler Engine Maintenance – Under 1000 Hours
Additional engine maintenance is required. Refer to the Programmed Maintenance Inspection Report for
the specific intervals that apply.
Required maintenance procedures and additional engine information are available in the manufacturer's
manuals. Refer to Specifications, Engine Operator and Maintenance Manuals.
Kohler KD350 Hour Intervals
Procedure
Oil level - check
Not required
Daily 250 500
∅∅
Air cleaner - check and maintenance
Oil and fuel leaks
Engine oil and filter – replace
Fuel tank
Cooling fins - clean
Dry air cleaner cartridge
Fuel filter - replace
Rocker arm
Injector cleaning and adjustment
∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅
Part No. 1272215GT Scissor Lifts 65
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Maintenance Manual March 2023
∅ =
Programmed Maintenance Procedures
P0-6
Kubota Engine Maintenance – Under 1000 Hours
Additional engine maintenance is required. Refer to the Programmed Maintenance Inspection Report for
the specific intervals that apply.
Required maintenance procedures and additional engine information are available in the manufacturer's
manuals. Refer to Specifications, Engine Operator and Maintenance Manuals.
This maintenance schedule applies to the following Kubota Engines:
Kubota D-1105-E3B Kubota WG972
Kubota Engines Hour Intervals
Procedure
Coolant level - check
Oil level - check
Oil, fuel and coolant systems - check for leaks
Fuel system filter/water separator – inspect/drain
Fuel hoses and clamp bands - check
Fan belt tension and damage - check
Battery electrolyte level - check
Spark plug - check
Air cleaner element - clean
(Replace the element after 6 times cleaning)
Fuel filter (element type) - clean
Oil filter cartridge - replace,
Engine oil - replace
Radiator hoses and clamps - check
Intake air line - check, D-1105
Fuel filter cartridge - replace
Air cleaner element - replace
Fan belt - replace
Cleaning of water jacket (radiator interior)
Removal of sediment in fuel tank
Damage in electric wiring and loose connections - check
Valve clearance - check
Not required
Daily 50 75 100
∅ ∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅ ∅
∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅ ∅ ∅
150 200 400 500 800
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅
∅
∅
∅
∅
∅
66 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
∅ =
Programmed Maintenance Procedures
P0-7
Perkins Engine Maintenance – Under 1000 Hours
Additional engine maintenance is required. Refer to the Programmed Maintenance Inspection Report for
the specific intervals that apply.
Required maintenance procedures and additional engine information are available in the manufacturer's
manuals. Refer to Specifications, Engine Operator and Maintenance Manuals.
Perkins 403D-11 Hour Intervals
Procedure
Air filter discharge valve - clean
Not required
Daily 50 500
∅∅
Oil, fuel and coolant systems - check for leaks
Coolant level – check/add
Oil level - check
Fuel system filter/water separator – drain
Engine air precleaner - check/drain
Alternator belt - inspect/adjust/replace
Fuel tank water/sediment - drain
Hoses and clamps – inspect/replace
Cooling system supplement additive - test/add
Engine oil and filter – replace
Fuel system filter(s) - replace
Radiator – clean
Air cleaner element - clean/replace
Fan clearance - check
∅
∅
∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅
∅
∅
Part No. 1272215GT Scissor Lifts 67
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Maintenance Manual March 2023
∅ =
Programmed Maintenance Procedures
P0-8
GM Engine Maintenance – Under 1000 Hours
Additional engine maintenance is required. Refer to the Programmed Maintenance Inspection Report for
the specific intervals that apply.
Required maintenance procedures and additional engine information are available in the manufacturer's
manuals. Refer to Specifications, Engine Operator and Maintenance Manuals.
GM .998L Engine Hour Intervals
Procedure
Not required
Daily 100 150 200 400 800
Coolant level - check
Oil level - check
Oil, fuel and coolant systems - check for leaks
Fan belt tension and damage - check
Radiator hoses and clamps - check
Intake manifold - check for vacuum leaks
LPG system - check for leaks
Radiator – clean
Engine oil and filter – replace
LPG Vaporizer - drain/clean
PCV valve - check
Air cleaner element - clean/replace
Timing belt - check
Electrical wiring - check for chafing or damage
Vacuum lines and fittings - check
Fuel filter - replace
Fuel lines and clamps - check for leaks
Air intake system - inspect for leaks
Cylinder head bolts - torque (40.5 ft-lbs / 55 Nm)
Valve clearance - check/adjust
PCV valve - replace
Cooling system coolant - replace
∅
∅
∅
∅
∅
∅ ∅
∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅ ∅
∅ ∅ ∅
∅ ∅ ∅
∅ ∅
∅ ∅
∅ ∅
∅
∅
∅
∅
∅
∅
∅
Spark plugs - replace
Spark plug wires - check/replace
68 Scissor Lifts Part No. 1272215GT
∅ ∅ ∅ ∅ ∅
∅ ∅ ∅ ∅ ∅
Page 81
March 2023Maintenance Manual
Programmed Maintenance Procedures
P1-1
Perform Engine Maintenance –
1000 Hours
Engine specifications require that this procedure
be performed every 1000 hours.
Required maintenance procedures and additional
engine information are available in the
manufacturer's manuals. Refer to Specifications,
Engine Operator and Maintenance Manuals.
Deutz Models
• Fuel system primary filter (water separator)
element – replace
• Fuel system secondary filter – replace
• Hoses and clamps – inspect/replace
• By-pass oil filter - replace
• Engine mounts - inspect
• Hoses and clamps – inspect/replace
• Glow plugs - check
• Valve clearance - check
• V-belts - re-tension/renew
Perkins Models
• Alternator and fan belts - replace
• Engine valve lash – inspect/adjust
• Engine crankcase breather - replace
Kubota Models
WG972
• Spark plugs - replace
• Coolant and vacuum lock hose of LPG
vaporizer - replace
• Radiator coolant (L.L.C.) - replace
• Cleaning water jacket and radiator interior
• Valve clearance - check
• Cleaning cylinder head
• Valve seats - check
• Gasoline fuel hose and clamp bands -
replace
• Carburetor and fuel tank inside - clean
D-1105
• Fuel injection nozzle injection pressure check
• Cold starting device (if equipped) - check
• Battery and cable connectors - check
• Engine valve lash – inspect/adjust
• Engine oil and filter – replace
D 2.9 L4:
• Coolant (additive concentration) - check
Part No. 1272215GT Scissor Lifts 69
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Maintenance Manual March 2023
1
Programmed Maintenance Procedures
P1-2
Replace the Drive Hub Oil - GS69, GS-84, GS-90
Drive hub specifications require that this procedure
be performed after the first 50 hours of operation.
After the initial oil replacement, specifications
require that this procedure be performed every
1000 hours.
Replacing the drive hub oil is essential for good
machine performance and service life. Failure to
replace the drive hub oil at yearly intervals may
cause the machine to perform poorly and
continued use may result in component damage
1 Select the drive hub to be serviced. Drive the
machine until one of the two plugs is at the
lowest point.
2 Remove the plugs and drain the oil into a
suitable container.
3 Drive the machine until one of the two plugs is
at the highest point.
P2-1
Perform Engine Maintenance –
2000 Hours
Engine specifications require that this procedure
be performed every 2000 hours.
Required maintenance procedures and additional
engine information are available in the
manufacturer's manuals. Refer to Specifications,
Engine Operator and Maintenance Manuals.
Deutz Models
• V-Belts - replace
• Glow plugs - replace
• Cooling system coolant - replace
• Extended life coolant (ELC) - replace
Perkins Models
• Alternator - inspect
• Engine mounts - inspect
4 Fill the hub until the oil level is even with the
5 Install the plugs into the drive hub.
6 Repeat this procedure for each drive hub.
1 drive hub plugs
bottom of the lowest plug hole. Refer to
Specifications, Machine Specifications.
• Starting motor - inspect
• Engine crankcase breather - replace
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March 2023 Maintenance Manual
Beware of hot oil. Contact with
hot oil may cause severe burns.
Programmed Maintenance Procedures
Kubota Models
D1105, WG972
• Radiator coolant (L.L.C.) - replace
• Battery - replace
• Radiator hoses and clamp bands - replace
• Fuel pipes and clamp bands - replace
• Intake air line - replace
WG972
• Fuel filter - replace
• LPG fuel hose and clamp bands - replace
• Coolant and vacuum lock hose of LPG
vaporizer - replace
GM Models
• Intake manifold - check for vacuum leaks
• Timing belt - replace
P2-2
Replace the Hydraulic Filters
Genie specifications require that this procedure be
performed every 2000 hours.
Replacement of the hydraulic tank return filter is
essential for good machine performance and
service life. A dirty or clogged filter may cause the
machine to perform poorly and continued use may
cause component damage. Extremely dirty
conditions may require that the filter be replaced
more often.
Tank breather filter (if equipped):
1 Remove and discard the hydraulic tank
breather cap.
2 Install a new cap onto the tank.
GS-30, GS-32, GS-46, GS-47, GS-69, GS-84, GS90
Replace the Hydraulic Return Filter
1 Clean the area around the oil filter. Remove
the filter with an oil filter wrench.
2 Apply a thin layer of fresh oil to the gasket of
the new oil filter.
3 Install the new filter and tighten it securely by
hand.
4 Use a permanent ink marker to write the date
and number of hours from the hour meter on
the oil filter.
5 Raise the platform to approximately 3 ft / 1 m.
6 Inspect the filter and related components to
be sure that there are no leaks.
7 Clean up and properly dispose of any oil that
may have spilled during the installation
procedure.
Part No. 1272215GT Scissor Lifts 71
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Maintenance Manual March 2023
Collision hazard. Select a work
site that is firm and level.
Component damage hazard. If
the machine must be towed, do
not exceed
Programmed Maintenance Procedures
GS-69, GS-84, GS-90
Replace the Medium and High Pressure
Hydraulic Filter(s)
1 Locate the medium and high pressure filter(s).
2 Remove the filter housing using a wrench on
the nut provided on the bottom of the housing.
3 Remove the filter element from the housing.
4 Inspect the housing seal and replace it if
necessary.
5 Install the new filter and hand tighten the
housing onto the filter head.
6 Use a permanent ink marker to write the date
and number of hours from the hour meter on
the oil filter.
7 Inspect the filter assembly to be sure that
there are no leaks.
8 Clean up and properly dispose of any oil that
may have spilled during the installation
procedure.
P2-3
Check the Free-wheel
Configuration - GS-84 and GS-90
Genie requires that this procedure be performed
every 2000 hours.
Proper use of the free-wheel configuration is
essential to safe machine operation. The freewheel configuration is used primarily for towing. A
machine configured to free-wheel without operator
knowledge may cause death or serious injury and
property damage.
2 mph / 3.2 km/h.
Non-Steer wheels:
1 Chock the steer wheels to prevent the
machine from rolling.
2 Center a lifting jack of ample capacity
(20,000 lbs / 10,000 kg) under the drive
chassis between the non-steer tires.
3 Lift the wheels off the ground and then place
jack stands under the drive chassis for
support.
72 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Collision hazard. Failure to re
engage the drive hubs could
result in death or serious injury
and property d
Collision hazard. Failure to re
engage the dr
result in death or serious injury
and property damage.
1
2
1
2
Programmed Maintenance Procedures
4 Disengage the drive hubs by turning over the
drive hub disconnect caps on each non-steer
wheel hub.
1 brake disengaged position
2 brake engaged position
5 Manually rotate each non-steer wheel.
Result: Each non-steer wheel should rotate
with minimum effort.
6 Re-engage the drive hubs by turning over the
hub disconnect caps. Rotate each wheel to
check for engagement. Raise the machine,
remove the jack stands and lower the
machine.
-
amage.
Steer wheels:
7 Chock the non-steer wheels to prevent the
machine from rolling.
8 Center a lifting jack of ample capacity
(20,000 lbs / 10,000 kg) under the drive
chassis between the steer tires.
9 Lift the wheels off the ground and then place
jack stands under the drive chassis for
support.
10 Disengage the drive hubs by turning over the
drive hub disconnect caps on each steer
wheel hub.
1 brake disengaged position
2 brake engaged position
11 Manually rotate each steer wheel.
Result: Each steer wheel should rotate with
minimum effort.
12 Re-engage the drive hubs by turning over the
hub disconnect caps. Rotate each wheel to
check for engagement. Raise the machine,
remove the jack stands and lower the
machine.
ive hubs could
-
Part No. 1272215GT Scissor Lifts 73
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Maintenance Manual March 2023
Cross tube to chassis specification
Measurement, minimum
nch
m
Programmed Maintenance Procedures
P2-4
Check the Scissor Arm Wear
Pads
(and Slider Blocks, if equipped)
Genie requires that this procedure be performed
every 2000 hours.
Maintaining the condition of the scissor arm wear
pads is essential to safe machine operation.
Continued use of worn out wear pads may result in
component damage and unsafe operating
conditions.
Note: Perform this procedure with the machine on
a firm, level surface that is free of obstructions.
GS-1530, GS-1532, GS-1930, GS-1932:
1 Measure the distance between the number
one inner arm cross tube and the chassis
deck at the ground controls side of the nonsteer end of the machine. Refer to illustration
1.
2 Measure the distance between the number
one inner arm cross tube and the chassis
deck at the battery pack side of the non-steer
end of the machine. Refer to illustration 1.
Result: The measurement is 0.90 inch /
22.9 mm or more. Proceed to step 3.
Result: The measurement is less than
0.90 inch / 22.9 mm. Replace both wear pads.
Refer to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How to Replace the Scissor Arm Wear Pads.
Result: The measurement is 0.90 inch /
22.9 mm or more. Proceed to step 2.
Result: The measurement is less than
0.90 inch / 22.9 mm. Replace both wear pads.
Refer to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How to Replace the Scissor Arm Wear Pads.
Illustration 1
1 wear pad
2 inner arm cross tube
3 chassis deck
3 Apply a thin layer of dry film lubricant to the
area of the chassis where the scissor arm
wear pads make contact.
one outer arm cross tube and the fork lift tube
at the ground controls side of the non-steer
end of the machine. Refer to Illustration 2.
Result: The measurement is 0.88 inch /
22.4 mm or more. Proceed to step 2.
Result: The measurement is less than
0.88 inch / 22.4 mm. Replace both wear pads.
Refer to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How to Replace the Scissor Arm Wear Pads.
2 Measure the distance between the number
one outer arm cross tube and the fork lift tube
at the battery pack side of the non-steer end
of the machine. Refer to Illustration 2.
Result: The measurement is 0.88 inch /
22.4 mm or more. Proceed to step 3.
Result: The measurement is less than
0.88 inch / 22.4 mm. Replace both wear pads.
Refer to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How to Replace the Scissor Arm Wear Pads.
Illustration 2
1 Outer arm cross tube
2 fork lift tube
3 wear pad
3 Apply a thin layer of dry film lubricant to the
area of the chassis where the scissor arm
wear pads make contact.
scissor arm slider blocks at the non-steer end
of the machine.
Result: The measurement is 3.875 inch /
9.843 cm or more. Proceed to step 2.
Result: The measurement is less than
3.875 inch / 9.843 cm. Replace both slider
blocks.
1 Slider block
2 Measure the thickness of each chassis
scissor arm upper and lower slider wear pads
at the non-steer end of the machine.
Result: The measurement is 11/32 inch /
8.71 mm or more.
Result: The measurement is less than
11/32 inch / 8.71 mm. Replace both upper
and lower slider wear pads.
GS-3384, GS-3390, GS-4390, GS-5390
1 Measure the thickness of each chassis wear
pad at the steer end of the machine.
Result: The measurement is 5/16 inch / 8 mm
or more. Proceed to step 2.
Result: The measurement is less than
5/16 inch / 8 mm. Replace both wear pads.
2 Measure the thickness of each chassis wear
pad at the non-steer end of the machine.
Result: The measurement is 5/16 inch / 8 mm
or more. Proceed to step 3.
Result: The measurement is less than
5/16 inch / 8 mm. Replace both wear pads.
3 Measure the thickness of each platform
scissor arm wear pad at the steer end of the
machine.
Result: The measurement is 5/16 inch / 8 mm
or more. Proceed to step 4.
Result: The measurement is less than
5/16 inch / 8 mm. Replace both wear pads.
4 Measure the thickness of each platform
scissor arm wear pad at the non-steer end of
the machine.
Result: The measurement is 5/16 inch / 8 mm
or more.
Result: The measurement is less than
5/16 inch / 8 mm. Replace both wear pads.
1 Upper slider pad
2 Lower slider pad
76 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Programmed Maintenance Procedures
P2-5
Grease the Steer Axle Wheel
Bearings - GS-69 BE and GS-69
DC
Genie requires that this procedure be performed
every 2000 hours.
Perform this procedure more often if dusty
conditions exist.
Maintaining the steer axle wheel bearings is
essential for safe machine operation and service
life. Operating the machine with loose or worn
wheel bearings may cause an unsafe operating
condition and continued use may result in
component damage. Extremely wet or dirty
conditions or regular steam cleaning and pressure
washing of the machine may require that this
procedure be performed more often.
1 Loosen the wheel lug nuts. Do not remove
them.
2 Block the non-steer wheels, then center a
lifting jack under the steer axle.
3 Raise the machine 6 inches / 15 cm and place
blocks under the drive chassis for support.
4 Remove the lug nuts. Remove the tire and
wheel assembly.
5 Check for wheel bearing wear by attempting
to move the wheel hub side to side, then up
and down.
Result: There is no side to side or up and
down movement. Proceed to step 10.
Result: There is side to side or up and down
movement Proceed to step 6.
6 Remove the dust cap from the hub. Remove
the cotter pin from the castle nut.
7 Tighten the castle nut to 150 ft-lbs / 203 Nm
to seat the bearings.
8 Fully loosen the castle nut and re-tighten to
35 ft-lbs / 48 Nm.
9 Check for wheel bearing wear by attempting
to move the wheel hub side to side, then up
and down.
Result: There is no side to side or up and
down movement. Proceed to step 10.
Result: There is side to side or up and down
movement. Proceed to step 10 and replace
the wheel bearings with new ones.
Note: When replacing a wheel bearing, both the
inner and outer bearings, including the pressed-in
races, must be replaced.
10 Remove the dust cap from the hub. Remove
the cotter pin from the castle nut.
11 Remove the castle nut.
12 Pull the hub off of the spindle. The spindle
washer, thrust washer and outer bearing
should fall loose from the hub.
Part No. 1272215GT Scissor Lifts 77
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Maintenance Manual March 2023
Component damage hazard. Do
not apply excessive force or
damage to the lip of the seal
may occur.
Programmed Maintenance Procedures
13 Place the hub on a flat surface and gently pry
the bearing seal out of the hub. Remove the
rear bearing.
P2-6
Test or Replace the Hydraulic Oil
14 Pack both bearings with clean, fresh grease.
15 Place the large inner bearing into the rear of
the hub.
16 Install a new bearing grease seal into the hub
by pressing it evenly into the hub until it is
flush.
17 Slide the hub onto the yoke spindle.
18 Place the outer bearing into the hub.
19 Install the spindle washer, thrust washer and
castle nut.
20 Tighten the slotted nut to 150 ft-lbs / 203 Nm
to seat the bearings.
21 Fully loosen the castle nut and re-tighten to
35 ft-lbs / 48 Nm.
22 Install a new cotter pin. Bend the cotter pin to
lock it in place.
Note: Always use a new cotter pin when installing
a castle nut.
Genie requires that this procedure be performed
every 2000 hours.
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil and a clogged suction strainer
or hydraulic filters may cause the machine to
perform poorly and continued use may cause
component damage. Extremely dirty conditions
may require oil changes to be performed more
frequently.
Note: Before replacing the hydraulic oil, the oil
may be tested by an oil distributor for specific
levels of contamination to verify that changing the
oil is necessary. If the hydraulic oil is not replaced
at the 2000 hour inspection, test the oil quarterly.
Replace the oil when it fails the test.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
23 Install the dust cap.
78 Scissor Lifts Part No. 1272215GT
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March 2023 Maintenance Manual
Scissor Lif ts
Part No. 1272215GT
Maintenanc e M anual
March 2023
Maintenanc e Ins pe ctio n R epor t – Sc issor Lifts
Programmed Maintenance Procedures
Testing the oil:
1 Complete the hydraulic oil testing with an oil
distributor.
If the hydraulic oil passes testing at the
2000 hour maintenance interval, the oil must
be tested every quarter by an oil distributor
until the oil fails the test and is replaced.
If the hydraulic oil fails testing at the
2000 hour maintenance interval, the oil must
be replaced. After the oil has been replaced,
continue the scheduled quarterly maintenance
inspection.
P3-1
Perform Engine Maintenance –
3000 Hours
Engine specifications require that this procedure
be performed every 3000 hours.
Required maintenance procedures and additional
engine information are available in the
manufacturer's manuals. Refer to Specifications,
Engine Operator and Maintenance Manuals.
Replacing the hydraulic oil:
1 Remove the drain plug from the hydraulic tank
and completely drain the tank into a container
of suitable capacity. Refer to Specifications,
Hydraulic Fluid Capacities Specifications.
2 Fill the tank with the proper hydraulic oil for
your machine. Refer to Specifications,
Hydraulic Specifications.
3 Engine Models: Prime the pump. Refer to
Repair Procedure in the appropriate Service
and Repair Manual for your machine, How to Prime the Pump.
4 Clean up and properly dispose of any oil that
may have spilled.
Note: When replacing the hydraulic oil, it is
recommended that the hydraulic tank be cleaned
using a mild solvent and all hydraulic filters and
strainers be replaced.
Note: Always use pipe thread sealant when
installing the suction hose fittings and the drain
plug.
Note: After the oil has been replaced, continue the
scheduled quarterly maintenance inspection.
Deutz Models:
All Models:
• Injection valve- replace
• Toothed belt - replace
• V-belt and tensioning pulley - replace
D 2.9 L4 Models:
• Charge air cooler entry- drain lube
oil/condensate
Ford Models:
• Coolant filler cap - clean/replace
Perkins Models:
• Water pump - inspect
• Fuel Injector - test/change
• Cooling system coolant (Heavy Duty) -
change
Kubota Models
• Injection pump - check
• Fuel injection timing - check
Part No. 1272215GT Scissor Lifts 79
Page 92
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