Terex Genie GR-20J User manual

Operator's Manual
Serial Number Range
GR™-20J
CE
GR™-26J
with
Maintenance
Information
Original Instructions
Third Edition
First Printing
Part No. 1319686GT

Operator's Manual Third Edition • First Printing
GR™-20J • GR™-26J Part No. 1319686GT
Front Matter
Manufacturer:
Terex Global GmbH
Bleicheplatz 2
Schaffhausen, 8200
Switzerland
EU Authorized representative:
Genie Industries B.V.
Boekerman 5
4751 XK OUD GASTEL
The Netherlands
UK Authorized representative:
Genie UK Limited
The Maltings
Wharf Road
Grantham
NG31 6BH
UK
Contents
Introduction ........................................................... 1
Symbol and Hazard Pictorials Definitions............. 5
General Safety ...................................................... 7
Personal Safety................................................... 10
Work Area Safety................................................ 11
Legend ................................................................ 18
Controls............................................................... 19
Inspections.......................................................... 23
Operating Instructions......................................... 35
Transport and Lifting Instructions ....................... 44
Maintenance ....................................................... 48
Specifications...................................................... 50
Copyright © 2010 Terex Corporation
Third Edition: First Printing, April 2023
Genie is a registered trademark of Terex South Dakota, Inc. in
the U.S.A. and many other countries.
“GR” is a trademark of Terex South Dakota, Inc.
Complies with EC Directive 2006/42/EC
See EC Declaration of Conformity
Supply of Machinery (Safety) Regulations 2008

Third Edition • First Printing Operator's Manual
Introduction
Part No. 1319686GT GR™-20J • GR™-26J 1
Introduction
About this manual
Genie appreciates your choice of our machine for
your application. Our number one priority is user
safety, which is best achieved by our joint efforts.
This book is an operation and daily maintenance
manual for the user or operator of a Genie
machine.
This manual should be considered a permanent
part of your machine and should remain with the
machine at all times. If you have any questions,
contact Genie.
Product Indentification
The machine serial number is located on the serial
label.
Serial label
Intended Use and Familiarization
Guide
The intended use of this machine is to lift
personnel, including tools, and materials to an
aerial work site. Before operating the machine, it’s
the operator’s responsibility to read and
understand this familiarization guide.
Each person must be trained to operate a
Mobile Elevating Work Platform (MEWP).
Familiarization with the MEWP must be given
to each person who is authorized, competent
and trained.
Only trained and authorized personnel should
be permitted to operate the machine.
The operator is responsible to read,
understand, and obey the manufacturer’s
instructions and safety rules provided in the
Operator’s Manual.
The Operator’s Manual is located in the
manual storage container, at the platform.
For specific product applications, see
Contacting The Manufacturer.

Operator's Manual Third Edition • First Printing
Introduction
2 GR™-20J • GR™-26J Part No. 1319686GT
Platform controls symbology and related
machine movement:
Jib boom function button
Mast function and turntable rotate
function button
Function switch for drive and boom
functions
Proportional control handle for
drive and boom functions
Thumb rocker switch for steer
function
Drive function enable button
Ground controls symbology and related
machine movement:
Jib boom up/down
Turntable rotate
Mast up/down
Mast down, Jib boom down
Mast Up, Jib boom Up
Key switch
Sequential functions and movement:
•Drive and steer.
Interlocked functions:
•Elevated drive speed.
•Elevated drive in an off-level condition.
•All platform and ground controls.
Limitations of use:
•The intended use of this machine is to lift
personnel, including tools, and materials to an
aerial work site.
•Do not elevate the platform unless the machine
is on firm level ground.

Third Edition • First Printing Operator's Manual
Introduction
Part No. 1319686GT GR™-20J • GR™-26J 3
Bulletin Distribution and
Compliance
Safety of product users is of paramount
importance to Genie. Various bulletins are used by
Genie to communicate important safety and
product information to dealers and machine
owners.
The information contained in the bulletins is tied to
specific machines using the machine model and
serial number.
Distribution of bulletins is based on the most
current owner on record along with their
associated dealer, so it is important to register
your machine and keep your contact information
up to date.
To ensure safety of personnel and the reliable
continued operation of your machine, be sure to
comply with the action indicated in a respective
bulletin.
To view any open bulletins for your machine, visit
us on the web at www.genielift.com.
Contacting the Manufacturer
At times it may be necessary to contact Genie.
When you do, be ready to supply the model
number and serial number of your machine, along
with your name and contact information. At
minimum, Genie should be contacted for:
Accident reporting
Questions regarding product applications and
safety
Standards and regulatory compliance information
Current owner updates, such as changes in
machine ownership or changes in your contact
information. See Transfer of Ownership, below.
Transfer of Machine Ownership
Taking a few minutes to update owner information
will ensure that you receive important safety,
maintenance and operating information that
applies to your machine.
Please register your machine by visiting us on the
web at www.genielift.com or by calling us toll free
at 1-800-536-1800.

Operator's Manual Third Edition • First Printing
Introduction
4 GR™-20J • GR™-26J Part No. 1319686GT
Danger
Failure to obey the instructions and
safety rules in this manual will result
in death or serious injury.
Do Not Operate Unless:
You learn and practice the principles of safe
machine operation contained in this operator’s
manual.
1 Avoid hazardous situations.
Know and understand the safety rules
before going on to the next section.
2 Always perform a pre-operation inspection.
3 Always perform function tests prior to use.
4 Inspect the workplace.
5 Only use the machine as it was intended.
You read, understand and obey the
manufacturer’s instructions and safety rules—
safety and operator’s manuals and machine
decals.
You read, understand and obey employer’s
safety rules and worksite regulations.
You read, understand and obey all applicable
governmental regulations.
You are properly trained to safely operate the
machine.
Safety Sign Maintenance
Replace any missing or damaged safety signs.
Keep operator safety in mind at all times. Use mild
soap and water to clean safety signs. Do not use
solvent-based cleaners because they may
damage the safety sign material.
Hazard Classification
Decals on this machine use symbols, color coding,
and signal words to identify the following:
Safety alert symbol—used to alert
you to potential personal injury
hazards. Obey all safety
messages that follow this symbol
to avoid possible injury or death.
Indicates a hazardous situation
which, if not avoided, will result in
death or serious injury.
Indicates a hazardous situation
which, if not avoided, could result
in death or serious injury.
Indicates a hazardous situation
which, if not avoided, could result
in minor or moderate injury.
Indicates a property damage
message.

Third Edition • First Printing Operator's Manual
Symbol and Hazard Pictorials Definitions
Part No. 1319686GT GR™-20J • GR™-26J 5
Symbol andHazard Pictorials Definitions
Crush hazard
Electrocution hazard
Fire hazard
Explosion hazard
Burn hazard
Fall hazard
Batteries used as
counterweights
No Open Flames
Tip-over hazard
No smoking
Voltage rating for
power to platform
Electrocution hazard
Maintain required
clearance
Keep away from
moving parts
Read the operator’s
manual
No smoking
No flame
Stop engine
Keep off this surface.
Only trained
maintenance
personnel should
access
compartments
Collision hazard
Chock wheels before
releasing brakes

Operator's Manual Third Edition • First Printing
Symbol and Hazard Pictorials Definitions
6 GR™-20J • GR™-26J Part No. 1319686GT
Crush hazard
Keep away from
elevated components
while servicing
machine
Collision hazard
Do not stand under
raised platform
Tip-over hazard
Grounded AC 3-wire
outlet only
Replace damaged
wires and cords
Lanyard anchorage
points
Wheel load
1When tilt alarm
sounds.
2Lower platform.
Burn hazard
Maximum platform
capacity
Maximum allowable
manual force
Maximum wind
speed
Lifting and tie down
instructions
Auxiliary lowering

Third Edition • First Printing Operator's Manual
General Safety
Part No. 1319686GT GR™-20J • GR™-26J 7
GeneralSafety

Operator's Manual Third Edition • First Printing
General Safety
8 GR™-20J • GR™-26J Part No. 1319686GT

Third Edition • First Printing Operator's Manual
General Safety
Part No. 1319686GT GR™-20J • GR™-26J 9

Operator's Manual Third Edition • First Printing
Personal Safety
10 GR™-20J • GR™-26J Part No. 1319686GT
PersonalSafety
Personal Fall Protection
Personal fall protection equipment (PFPE) is
required when operating this machine.
Occupants must wear a safety belt or harness in
accordance with governmental regulations. Attach
the lanyard to the anchor provided in the platform.
Operators must comply with employer, job site and
governmental rules regarding the use of personal
protective equipment.
All PFPE must comply with applicable
governmental regulations, and must be inspected
and used in accordance with the PFPE
manufacturer’s instructions.

Third Edition • First Printing Operator's Manual
Work Area Safety
Part No. 1319686GT GR™-20J • GR™-26J 11
Work AreaSafety
Electrocution Hazards
This machine is not
electrically insulated and
will not provide protection
from contact with or
proximity to electrical
current.
Maintain safe distances
from electrical power lines
and apparatus in
accordance with applicable
governmental regulations
and the following chart.
Line Voltage
Required Clearance
0 to 50KV
3.05 m
50 to 200KV
4.60 m
200 to 350KV
6.10 m
350 to 500KV
7.62 m
500 to 750KV
10.67 m
750 to 1000KV
13.72 m
Allow for platform movement, electrical line sway
or sag, and beware of strong or gusty winds.
Keep away from the machine if it contacts
energized power lines. Personnel on the ground or
in the platform must not touch or operate the
machine until energized power lines are shut off.
Do not operate the machine during lightning or
storms.
Do not use the machine as a ground for welding.
Tip-over Hazards
Occupants, equipment and materials shall not
exceed the maximum platform capacity.
Maximum platform capacity
200 kg
The weight of options and accessories, such as
pipe cradles and panel cradles, will reduce the
rated platform capacity and must be factored into
the total platform load. See the decals on the
options and accessories.
If using accessories, read, understand and obey
the decals, instructions and manuals with the
accessory.
Do not alter or disable the limit switches.
Do not raise the platform
unless the machine is on a
firm, level surface.
Do not depend on the tilt
alarm as a level indicator.
The tilt alarm sounds in the
platform only when the
machine is on a severe
slope.
If the tilt alarm sounds: Lower
the mast, then lower the jib
boom. Move the machine to a
firm, level surface. Use
extreme caution to lower the
mast.

Operator's Manual Third Edition • First Printing
Work Area Safety
12 GR™-20J • GR™-26J Part No. 1319686GT
When raising the platform, follow ratings for
allowable manual force and number of occupants
below.
Do not operate the machine
in strong or gusty winds. Do
not increase the surface area
of the platform or the load.
Increasing the area exposed
to the wind will decrease
machine stability.
Use extreme care and slow
speeds while driving the
machine in the stowed
position across uneven
terrain, debris, unstable or
slippery surfaces and near
holes and drop-offs.
Do not drive the machine on or near uneven
terrain, unstable surfaces or other hazardous
conditions with the boom raised or extended.
Do not push off or pull
toward any object outside
of the platform.
Maximum allowable manual force
Maximum number
of occupants
400 N Indoor Use Only
2
200 N Outdoor
1
Do not alter or disable machine components that
in any way affect safety and stability.
Do not replace items critical to machine stability
with items of different weight or specification.
Do not modify or alter a mobile elevating work
platform without prior written permission from the
manufacturer. Mounting attachments for holding
tools or other materials onto the platform,
toeboards, or guard rail system can increase the
weight in the platform and the surface area of the
platform or the load.

Third Edition • First Printing Operator's Manual
Work Area Safety
Part No. 1319686GT GR™-20J • GR™-26J 13
Do not place or attach fixed
or overhanging loads to any
part of this machine.
Do not place ladders or
scaffolds in the platform or
against any part of this
machine.
Do not transport tools and
materials unless they are
evenly distributed and can be
safely handled by person(s)
in the platform.
Do not use the machine on a
moving or mobile surface or
vehicle.
Be sure the tires are in good
condition and the lug nuts
tightened.
Do not use the platform controls to free a platform
that is caught, snagged, or otherwise prevented
from normal motion by an adjacent structure. All
personnel must be removed from the platform
before attempting to free the platform using the
ground controls.
Do not use batteries that weigh less than the
original equipment. Batteries are used as
counterweight and are critical to machine stability.
The battery box, including batteries, must weigh a
minimum of 212 kg.
Do not use the machine as a crane.
Do not push the machine or other objects with the
boom.
Do not contact adjacent structures with the boom.
Do not tie the boom or platform to adjacent
structures.
Do not place loads outside the platform perimeter.
Operation on Slopes Hazards
Do not drive the machine on a slope that exceeds
the maximum uphill, downhill or side slope rating
of the machine. Slope rating applies only to
machines in the stowed position.
Maximum slope rating, stowed position
25% (14°)
Maximum side slope rating, stowed
position
15% (9°)
Note: Slope rating is subject to ground conditions
with one person in the platform and adequate
traction. Additional platform weight may reduce
slope rating. See Driving on a Slope in the
Operating Instructions section.

Operator's Manual Third Edition • First Printing
Work Area Safety
14 GR™-20J • GR™-26J Part No. 1319686GT
Fall Hazards
Occupants must wear a
safety belt or harness in
accordance with
governmental regulations.
Attach the lanyard to the
anchor provided in the
platform.
Do not sit, stand, or climb
on the platform guard
rails. Maintain a firm
footing on the platform
floor at all times.
Do not climb down from
the platform when raised.
Keep the platform floor
clear of debris.
Lower the platform entry
mid-rail or close the entry
gate before operating.
Do not enter or exit the platform unless the
machine is in the stowed position and the platform
is at ground level.
Collision Hazards
Be aware of limited sight
distance and blind spots
when driving or operating.
Be aware of the platform position and tailswing
when rotating the turntable.
Check the work area for
overhead obstructions or
other possible hazards.
Be aware of crushing
hazards when grasping
the platform guard rail.
Operators must comply with employer, job site,
and governmental rules regarding use of personal
protective equipment.
Observe and use the color-coded direction arrows
on the platform controls and drive chassis for drive
and steer functions.

Third Edition • First Printing Operator's Manual
Work Area Safety
Part No. 1319686GT GR™-20J • GR™-26J 15
Do not lower the platform
unless the area below is
clear of personnel and
obstructions.
Limit travel speed
according to the condition
of the ground surface,
congestion, slope,
location of personnel, and
any other factors which
may cause collision.
Do not operate a machine in the path of any crane
or moving overhead machinery unless the controls
of the crane have been locked out and/or
precautions have been taken to prevent any
potential collision.
No stunt driving or horseplay while operating a
machine.
The machine must be on a level surface or
secured before releasing the brakes.
Explosion and Fire Hazards
Charge the battery only in an open, well-ventilated
area away from sparks, flames and lighted
tobacco.
Do not operate the machine or charge the battery
in hazardous locations or locations where
potentially flammable or explosive gases or
particles may be present.
Bodily Injury Hazard
Do not operate the machine with a hydraulic oil or
air leak. An air leak or hydraulic leak can penetrate
and/or burn skin.
Improper contact with components under any
cover will cause serious injury. Only trained
maintenance personnel should access
compartments. Access by the operator is only
advised when performing a pre-operation
inspection. All compartments must remain closed
and secured during operation.
Damaged Machine Hazards
Do not use a damaged or malfunctioning machine.
Conduct a thorough pre-operation inspection of
the machine and test all functions before each
work shift. Immediately tag and remove from
service a damaged or malfunctioning machine.
Be sure all maintenance has been performed as
specified in this manual and the appropriate Genie
service manual.
Be sure all decals are in place and legible.
Be sure the operator's manual is complete, legible,
and in the storage container located on the
machine.
Component Damage Hazards
Do not use the machine as a ground for welding.
Failure to charge the batteries when the low
battery indicator is on may result in battery
damage and may require a complete battery pack
replacement.

Operator's Manual Third Edition • First Printing
Work Area Safety
16 GR™-20J • GR™-26J Part No. 1319686GT
Battery Safety
Burn Hazards
Batteries contain acid.
Always wear protective
clothing and eye wear when
working with batteries.
Avoid spilling or contacting
battery acid. Neutralize
battery acid spills with baking
soda and water.
The battery pack must remain in the upright
position.
Do not expose the batteries or the charger to
water or rain during charging.
Explosion Hazards
Keep sparks, flames, and
lighted tobacco away from
batteries. Batteries emit
explosive gas.
The battery pack cover must
remain off during the entire
charging cycle.
Do not contact the battery
terminals or the cable
clamps with tools that may
cause sparks.
Component Damage Hazard
Do not use any battery charger greater than 48V
to charge the batteries.
Do not use the machine as a ground for welding.
Electrocution/Burn Hazards
Connect the battery charger to a
grounded, AC 3-wire electrical
outlet only.
Inspect daily for damaged cords,
cables and wires. Replace
damaged items before operating.
Avoid electrical shock from contact with battery
terminals. Remove all rings, watches and other
jewelry.
Tip-over Hazard
Do not use batteries that weigh less than the
original equipment. Batteries are used as
counterweight and are critical to machine stability.
The battery box, including batteries, must weigh a
minimum of 212 kg.
Lifting Hazard
Use a suitable lifting device to remove or install the
batteries.

Third Edition • First Printing Operator's Manual
Work Area Safety
Part No. 1319686GT GR™-20J • GR™-26J 17
Lockout After Each Use
1Select a safe parking location—firm level
surface, clear of obstruction and traffic.
2Lower the Jib boom and the mast to the
stowed position.
3Rotate the turntable so that the platform is
between the non-steer wheels.
4Turn the key switch to the off position and
remove the key to secure from unauthorized
use.

Operator's Manual Third Edition • First Printing
Legend
18 GR™-20J • GR™-26J Part No. 1319686GT
Legend
1Steer tire
2Auxiliary lowering controls (also under cover on
opposite side)
3Ground controls
4Batteries (under cover)
5Mast
6Jib boom
7Auxiliary lowering valve for jib boom
8Platform controls
9Platform
10 Sliding mid-rail
11 Lanyard anchorage points
12 Manual storage container
13 Red Emergency Stop button
14 Power to charger
15 Non-steer tire