Terex Genie GRC-12 Setup guide

Operator's Manual
Serial Number Range
GR
C
™
-
12 from GRCP
-
6000 AUS
Australia
with
Maintenance
Information
Third Edition
First Printing
Part No. 1297727GT

Operator's Manual Third Edition • First Printing
GRC™-12 Part No. 1297727GT
Front Matter
Contents
Introduction ........................................................... 1
Symbol and Hazard Pictorials Definitions............. 6
General Safety ...................................................... 8
Personal Safety................................................... 10
Work Area Safety................................................ 11
Legend ................................................................ 17
Controls............................................................... 18
Inspections.......................................................... 21
Operating Instructions......................................... 34
Transport and Lifting Instructions ....................... 41
Maintenance ....................................................... 46
Specifications...................................................... 48
Copyright © 2008 Terex Corporation
Third Edition: First Printing, September 2020
Genie is a registered trademark of Terex South Dakota, Inc. in
the U.S.A. and many other countries.
“GRC” is a trademark of Terex South Dakota, Inc.
These machines comply with
AS 1418.10

Third Edition • First Printing Operator's Manual
Introduction
Part No. 1297727GT GRC™-12 1
Introducti on
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 Identification
The machine serial number is located on the serial
label.
Serial number stamped
on chassis
Serial label located on
chassis
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 GRC™-12 Part No. 1297727GT
Platform controls symbology and related
machine movement:
Lift function enable button
Drive function enable button
Platform up/down (when lift function
selected)
Drive forward/reverse (when drive function
selected)
Steer right/left (when drive function
selected)
Area of operation, indoor use button
Ground controls symbology and related
machine movement:
Lift function enable button
Platform up/down button
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. 1297727GT GRC™-12 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 GRC™-12 Part No. 1297727GT
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.

Third Edition • First Printing Operator's Manual
Introduction
Part No. 1297727GT GRC™-12 5
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.
DANGER
WARNING
CAUTION
NOTICE

Operator's Manual Third Edition • First Printing
Symbol and Hazard Pictorials Definitions
6 GRC™-12 Part No. 1297727GT
Symbol and Hazard P ictorials Definiti ons
Read the operator’s
manual
Read the service
manual
Crush hazard No smoking Collision hazard
Collision hazard Tip-over hazard Tip-over hazard Electrocution hazard Electrocution hazard
Burn hazard Explosion hazard Fire hazard Batteries used as
counterweights
Tiedown
Voltage rating for
power to platform
Pressure rating for air
line to platform
Keep away from
moving parts
Move machine to
level ground
Lifting & tie down
instructions

Third Edition • First Printing Operator's Manual
Symbol and Hazard Pictorials Definitions
Part No. 1297727GT GRC™-12 7
Maintain required
clearance
Access by trained
and authorized
personnel only
Chock the wheels Release brakes Grounded AC
3-wire only
Replace damaged
wires and cords
Wheel load Lanyard anchorage
points
Side force Manual force
Lifting point Indoor Maximum capacity including occupant, tools,
materials and options
Wind speed
Maximum capacity Auxiliary lowering
+
+
+

Operator's Manual Third Edition • First Printing
General Safety
8 GRC™-12 Part No. 1297727GT
General Safety

Third Edition • First Printing Operator's Manual
General Safety
Part No. 1297727GT GRC™-12 9

Operator's Manual Third Edition • First Printing
Personal Safety
10 GRC™-12 Part No. 1297727GT
Personal Safety
Personal Fall Protection
Personal fall protection equipment (PFPE) is not
required when operating this machine. If PFPE is
required by job site or employer rules, the following
shall apply:
All PFPE must comply with applicable
governmental regulations and must be inspected
and used in accordance with the manufacturer’s
instructions.

Third Edition • First Printing Operator's Manual
Work Area Safety
Part No. 1297727GT GRC™-12 11
WorkArea Safety
Electrocution Hazards
This machine is not
electrically insulated and will
not provide protection from
contact with or proximity to
electrical current.
Obey all local and
governmental regulations
regarding required clearance
from electrical power lines. At
a minimum, the required
clearance contained in the
chart below must be
followed.
Line Voltage Required Clearance
0 to 50KV 10 ft 3.05 m
50 to 200KV 15 ft 4.60 m
200 to 350KV 20 ft 6.10 m
350 to 500KV 25 ft 7.62 m
500 to 750KV 35 ft 10.67 m
750 to 1000KV 45 ft 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 or the
maximum platform capacity of the platform
extension. Weight in trays is part of the total
platform load.
Maximum capacity - GRC-12
Standard platform
Platform retracted 500 lbs 227 kg
Platform extended –Platform only 250 lbs 113 kg
Platform extended –Extension only 250 lbs 113 kg
Work tray station (each) 25 lbs 11 kg
Maximum occupants 2
500 lbs / 227 kg Extension only
250 lbs / 113 kg
Platform only
250 lbs / 113 kg
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 at the
platform controls and the
ground controls when the
machine is on a severe slope.

Operator's Manual Third Edition • First Printing
Work Area Safety
12 GRC™-12 Part No. 1297727GT
If the tilt alarm sounds:
Lower the platform. Move the machine to a firm,
level surface. If the tilt alarm sounds when the
platform is raised, use extreme caution to lower the
platform.
Do not drive over 0.5 mph / 0.8 km/h with the
platform raised.
When raising the platform, follow ratings for
allowable side force and number of occupants
shown 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.
Do not drive the machine on
or near uneven terrain,
unstable surfaces or other
hazardous conditions with
the platform raised.
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 use the machine as a crane.
Do not push the machine or other objects with the
platform.
Do not contact adjacent structures with the
platform.
Do not tie the platform to adjacent structures.
Do not place loads outside the platform perimeter.
The work station tray is considered part of the
platform.
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 push off or pull toward
any object outside of the
platform.
Maximum allowable side force Maximum
occupants
90 lbs / 400 N 2
Do not alter or disable the limit switches.
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.

Third Edition • First Printing Operator's Manual
Work Area Safety
Part No. 1297727GT GRC™-12 13
Do not use batteries that weigh less than the
original equipment. Batteries are used as
counterweight and are critical to machine stability.
Each battery must weigh a minimum of
62 lbs/28 kg.
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.
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 all tires are
in good condition, castle nuts
are properly tightened and
cotter pins are properly
installed.
Crushing Hazard
Keep hands and limbs out of mast.
Do not work under the platform or mast without the
battery cover raised.
Use common sense and planning when operating
the machine with the controller from the ground.
Maintain safe distances between the operator, the
machine and fixed objects.
Operation on Slopes Hazards
Do not drive the machine on a slope that exceeds
the slope and side slope rating of the machine.
Slope rating applies to machines in the stowed
position.
Maximum slope rating, stowed
position
30% (16.7°)
Maximum side slope rating, stowed
position
30% (16.7°)
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.
Fall Hazards
The guard rail system provides fall protection. If
occupant(s) of the platform are required to wear
personal fall protection equipment (PFPE) due to
job site or employer rules, PFPE and its use shall
be in accordance with the PFPE manufacturer’s
instructions and applicable governmental
requirements. Use approved lanyard attachment
point provided.
Keep the platform floor clear of debris.
Close the entry gate before operating.

Operator's Manual Third Edition • First Printing
Work Area Safety
14 GRC™-12 Part No. 1297727GT
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.
Do not enter or exit the
platform unless the
machine is in the stowed
position.
Collision Hazards
Be aware of limited sight
distance and blind spots
when driving or operating.
Be aware of extended platform position when
moving the machine.
The machine must be on a level surface and
wheels chocked or secured before releasing the
brakes.
Operators must comply with employer, job site,
and governmental rules regarding use of personal
protective equipment.
Check the work area for
overhead obstructions or
other possible hazards.
Be aware of crushing
hazards when grasping
the platform guard rail.
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.

Third Edition • First Printing Operator's Manual
Work Area Safety
Part No. 1297727GT GRC™-12 15
Observe and use color-coded direction arrows on
the platform controls and the platform decal plate
for drive and steer functions.
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.
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.
Explosion and Fire Hazards
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.
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, safety, and responsibilities
manuals are complete, legible, and in the storage
container located on the machine.
Component Damage Hazards
Do not use any battery charger greater than 24V to
charge the batteries.
Do not use the machine as a ground for welding.

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Work Area Safety
16 GRC™-12 Part No. 1297727GT
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.
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 tray may remain
open 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 24V to
charge the batteries.
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.
Each battery must weigh a minimum of
62 lbs/28 kg.
Lifting Hazard
Use the appropriate number of people and proper
lifting techniques when lifting batteries.
Lockout After Each Use
1Select a safe parking location—firm level
surface, clear of obstruction and traffic.
2Lower the platform.
3Turn the key switch to the off position and
remove the key to secure from unauthorized
use.
4Charge the batteries.

Third Edition • First Printing Operator's Manual
Legend
Part No. 1297727GT GRC™-12 17
Legend
1Pothole guard
2Non-steer tire
3Forklift pockets
4Transport tie-down
5Emergency lowering valve
6Covers
7Battery charger display
8Ground controls
9Hydraulic oil level indicator
10 Power to platform/battery charger connection for
optional inverter
11 GFCI outlet
12 Work station tray
13 Brake release pump knob (under covers)
14 Platform controls
15 Platform extension release lever
16 Mast
17 Platform extension entry gate
18 Battery compartment covers
19 Battery cover latch
20 Steer tire
21 Manual storage container
22 Lanyard anchorage points

Operator's Manual Third Edition • First Printing
Controls
18 GRC™-12 Part No. 1297727GT
Controls
The ground control station is to be used as a means to raise the platform for function tests and for storage
purposes. The ground control station can be used in the event of an emergency to rescue an
incapacitated person in the platform.
Ground Control Panel
17A breaker for electrical circuits
2Red Emergency Stop button
Push in the red Emergency Stop button to the off
position to stop all functions. Pull out the red
Emergency Stop button to the on position to
operate the machine.
3Menu down button
4Menu enter button
5Platform up button
6Platform down button
7Lift function enable button
Press and hold this button to activate the lift
function.
8Menu escape button
9Menu up button
10 LCD diagnostic readout
11 Key switch for platform/off/ground selection
Turn the key switch to the platform position and
the platform controls will operate. Turn the key
switch to the off position and the machine will be
off. Turn the key switch to the ground position
and the ground controls will operate.
12 Tech Pro Link Connector