Snorkel AB46JE User manual

Part Number 0260072
July 2008
Operator’s
Manual

The aerial platform is not electrically insulated. Death or serious injury will result from contact
with, or inadequate clearance from, an energized conductor.
Do not go closer than the minimum safe approach distance as defined by the Minimum Safe
Approach Distance section in Chapter 3–Safety.
Regard all conductors as energized.
Allow for electrical wire sag and aerial platform sway.
If the platform, booms, or any part of the aerial platform contacts a high-voltage electrical conductor,
the entire machine can become electrically charged.
If that happens, remain on the machine and do not contact any other structure or object. This includes
the ground, adjacent buildings, poles, and any other objects that are not part of the aerial platform.
Such contact could make your body a conductor to the other object, creating an electrical shock hazard
resulting in death or serious injury.
If an aerial platform is in contact with an energized conductor the platform operator must warn ground
personnel in the vicinity to stay away. Their bodies can conduct electricity creating an electrical shock
hazard resulting in death or serious injury.
Do not approach or leave the aerial platform until the electricity has been turned off.
Do not attempt to operate the lower controls when the platform, booms, or any part of the aerial plat-
form is in contact with a high-voltage electrical conductor or if there is an immediate danger of such
contact.
Personnel on or near an aerial platform must be continuously aware of electrical hazards, recognizing
that death or serious injury can result from contact with an energized conductor.
California
Proposition 65 Warning
Battery posts, terminals, and related accessories contain
lead and lead components, chemicals known to the
State of California to cause cancer and birth defects or
other reproductive harm. Wash hands after handling.

AB46JE – 0260072
Table of Contents
Electrical Danger ............................ Inside Front Cover
California Proposition 65 ................ Inside Front Cover
Chapter 1 – Introduction
Aerial Platform Features.............................................1
Options .......................................................................1
Operator’s Manual......................................................1
Safety Alerts ...............................................................1
Operation....................................................................1
Maintenance...............................................................2
Manual of Responsibilities..........................................2
Additional Information.................................................2
Chapter 2 – Specifications
Component Identification............................................3
Working Envelope .....................................................4
General Specifications................................................5
Chapter 3 – Safety
Electrocution Hazards ................................................7
Minimum Safe Approach Distance .............................7
Prestart Inspection......................................................8
Work Place Inspection and Practices.........................8
Operation....................................................................8
Tip-Over and Falling Hazards.....................................9
Electrical System........................................................9
Hydraulic System........................................................9
Placards and Decals.................................................10
Chapter 4 – Safety Devices
Emergency Stop Controls......................................... 11
Emergency Power System ....................................... 11
Ground Operation Switch ......................................... 11
Platform Foot Switch ................................................ 11
Guardrails.................................................................12
Lanyard Anchors.......................................................12
Ground Fault Circuit Interrupter................................12
Tilt Alarm...................................................................12
Horn..........................................................................12
All Motion Alarm........................................................13
Flashing Light ...........................................................13
Chapter 5 – Gauges and Displays
Hour Meter................................................................15
Drive Fault Light .......................................................15
Battery Condition Indicator .......................................15
Battery Charge Indicator...........................................15
Hydraulic Fluid Filter Gauge.....................................15
Hydraulic Fluid Level Sight Gauge ...........................16
Chapter 6 – Batteries
General Maintenance ...............................................17
Charging...................................................................17
Chapter 7 – Controls
Battery Disconnect Switch........................................19
Lower Controls .........................................................19
Start Switch ...........................................................19
Emergency Stop Button ........................................19
Controls Selector Switch .......................................19
Ground Operation Switch......................................19
Rotation Switch .....................................................19
Riser Switch ..........................................................20
Boom Elevation Switch .........................................20
Boom Extension Switch ........................................20
Jib Articulation Switch ...........................................20
Platform Level Switch............................................20
Platform Rotation Switch.......................................20
Emergency Power Switch .....................................20
Circuit Breaker Reset Buttons ..................................21
Upper Controls .........................................................21
Emergency Stop Button ........................................21
Drive Joystick ........................................................21
Steer Switch ..........................................................22
Drive Range Switch...............................................22
Boom Speed Knob ................................................22
Rotation Switch .....................................................22
Riser Switch ..........................................................22
Boom Elevation Switch .........................................22
Boom Extension Switch ........................................23
Jib Articulation Switch ...........................................23
Platform Level Switch............................................23
Platform Rotation Switch.......................................23
Emergency Power Switch .....................................23
Horn Switch...........................................................23
Platform Foot Switch .............................................23
Chapter 8 – Prestart Inspection
Operator’s Manual Holder ........................................25
Electrical System......................................................25
Battery Fluid Level ................................................25
Battery Terminals...................................................26
Battery Charger.....................................................26
Battery Condition Indicator....................................26
Cables and Wiring Harness......................................26
Hydraulic System......................................................27
Fluid Level.............................................................27
Fluid Filter .............................................................27
Hoses, Tubes, and Fittings....................................27
Tires and Wheels......................................................27
Lower Control Station...............................................28
Operating Controls ................................................28
Emergency Stop....................................................28
Emergency Power.................................................28
Level Sensor.............................................................29
Flashing Light ...........................................................29

Table of Contents
AB46JE – 0260072
Structures .................................................................29
Weldments ............................................................29
Boom Slide Pads...................................................29
Fasteners ..............................................................30
Upper Control Station...............................................30
Guardrail System ..................................................30
Lanyard Anchors ...................................................30
Operating Controls ................................................30
Emergency Stop....................................................31
Emergency Power.................................................31
Horn Switch...........................................................31
Electrical Power Outlet..........................................31
All Motion Alarm........................................................32
Placards and Decals.................................................32
Prestart Inspection Checklist....................................37
Chapter 9 – Operation
Cold Weather Start-Up .............................................39
Manually Warming the Hydraulic System..............39
Preparing for Operation............................................39
Lower Controls .........................................................39
Upper Controls .........................................................40
Boom Operation ....................................................40
Driving and Steering..............................................41
Drive Speeds.........................................................41
All Motion Alarm........................................................42
Gradeability ..............................................................42
Theoretical Gradeability ........................................42
Actual Gradeability ................................................42
Percent vs. Degree of Slope .................................42
Driving on a Slope.................................................42
Calculating Percent Grade ....................................42
Machine Gradeability ............................................44
Electrical Power Outlet .............................................44
Air Line .....................................................................44
Chapter 10 – Stowing and Transporting
Stowing.....................................................................45
Transporting .............................................................45
Driving ...................................................................45
Winching ...............................................................46
Hoisting .................................................................46
Securing for Transport...........................................47
Chapter 11 – Emergency Operation
Emergency Power System .......................................49
Lower Controls ......................................................49
Upper Controls ......................................................49
Chapter 12 – Troubleshooting
Troubleshooting Chart ..............................................51
Appendix A – Glossary
Limited Warranty

AB46JE – 0260072 1
Chapter 1 – Introduction
Aerial Platform Features
The aerial platform is a boom-supported elevating work
platform used to raise personnel, their tools, and material
to the workstation. The aerial platform has been designed
for use on hard surface floors such as concrete. The
booms are raised and lowered with hydraulic cylinders.
Electric motors on the drive wheels provide power to move
the aerial platform.
The standard machine includes the following features:
Proportional drive control
Hour meter
Tie-down/lifting lugs
AC 110V electrical outlet with GFCI at platform
5 degree tilt alarm
Two wheel drive
Hydraulic oil level gauge
360 degree non-continuous turntable rotation
Zero tail swing
6 foot steel 500 lb capacity platform with three gravity
gates: one on each side and one rear
Battery condition indicator
40 amp battery charger with charge indicator
Horn
Non-marking foam filled tires
Five year limited warranty
The aerial platform has been manufactured, when ap-
plicable, to conform to all applicable requirements of the
following organizations:
Occupational Safety and Health Administration
(OSHA)
American National Standards Institute (ANSI)
Options
The following options may be provided on the machine:
Airline to platform
Flashing light
Motion alarm
Australian Standards (AS) certification
Canadian Standards Association (CSA) certification
Operator’s Manual
This manual provides information for safe and proper
operation of the aerial platform. Some information in this
manual refers to options that may or may not be on your
machine. Read and understand the information in this
Operator’s Manual before operating the aerial platform
on the job.
Additional copies of this manual may be ordered from
Snorkel. Supply the model and manual part number from
the front cover to assure that the correct manual will be
supplied.
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All information in this manual is based on the latest
product information at the time of publication. Snorkel
reserves the right to make product changes at any time
without obligation.
Safety Alerts
A safety alert symbol is used throughout this manual to
indicate danger, warning, and caution instructions. Follow
these instructions to reduce the likelihood of personal
injury and property damage. The terms danger, warning,
and caution indicate varying degrees of personal injury
or property damage that can result if the instruction is
not followed.
ADanger
Indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
This signal word is to be used in the most extreme
situations.
AWarning
Indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
ACaution
Indicates a potentially hazardous situation which, if
not avoided,may result inminor ormoderate injury.It
may also be used to alert against unsafe practices.
Notes
Notes are used to provide special information or helpful
hints to assist in aerial platform operation, but do not
indicate a hazardous situation.
Operation
The aerial platform has built-in safety features and has
been factory tested for compliance with Snorkel specifi-
cations and industry standards. However, any personnel
lifting aerial platform can be potentially dangerous in the
hands of untrained or careless operators.
AWarning
The potential for an accident increases when the
aerial platform is operated by personnel who are not
trained and authorized.Death or seriousinjury could
result fromsuch accidents. Readand understandthe
information in this manual and on the placards and
decals on the machine before operating the aerial
platform on the job.
Training is essential and must be performed by a quali-
fied person.
Become proficient in knowledge and actual operation
before using the aerial platform on the job.
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Chapter 1 – Introduction
2 AB46JE – 0260072
The operator must be trained and authorized to per-
form any functions of the aerial platform.
Operation of the aerial platform must be within the
scope of the machine specifications.
The operator bears ultimate responsibility for following
all manufacturer’s instructions and warnings, regulations
and safety rules of their employer and/or any state or
federal law.
Maintenance
Every person who maintains, inspects, tests, or repairs
the aerial platform must be qualified to do so. Following
the daily prestart inspection in this Operator’s Manual will
help keep the aerial platform in optimum working condi-
tion. Other maintenance functions must be performed
by maintenance personnel who are qualified to work on
the aerial platform.
ACaution
Weldingcurrent canbe veryintense. Damageto elec-
tronic components may result. Connect the ground
clamp as close as possible to the area being welded.
Disconnect battery cablesand any microprocessors
and engine control modules before welding on the
machine.
If it becomes necessary to weld aerial platform com-
ponents as a method of repair, take all precautions to
prevent damage to electronic circuitry and devices on
the machine. This includes, but may not be limited to,
disconnecting battery cables and electronic devices.
Do not modify this aerial platform without prior written con-
sent of the Snorkel Engineering Department. Modification
may void the warranty, adversely affect stability, or affect
the operational characteristics of the aerial platform.
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Manual of Responsibilities
All owners and users of the aerial platform must read,
understand, and comply with all applicable regulations.
Ultimate compliance to OSHA regulations is the respon-
sibility of the user and their employer.
ANSI publications clearly identify the responsibilities of all
personnel who may be involved with the aerial platform.
A reprint of the “Manual of Responsibilities for Dealers,
Owners, Users, Operators, Lessors and Lessees of
ANSI/SIA A92.5-2006 Boom-Supported Elevating Work
Platforms” is available from Snorkel dealers or from the
factory upon request.
Copies are also available from:
Scaffold Industry Association, Inc.
P. O. Box 20574
Phoenix, AZ 85036-0574 USA
Additional Information
For additional information contact your local dealer or
Snorkel at:
Snorkel International
P.O. Box 1160
St. Joseph, MO 64502-1160 USA
1-800-255-0317
http://www.snorkelusa.com

AB46JE – 0260072 3
Chapter 2 – Specifications
Component Identification
Right Side
Front
Rear
Upper Controls
Platform
Power to Platform
Outlet
Riser
Battery Tray
(Both Sides)
Chassis
Hydraulic Fluid Filter
Tie-Down/Lifting Lugs
Front Axle
Drive Control Compartment
Hydraulic Pump • Drive Motors
Battery Charger • Level Sensor
Tie-Down Lugs
Battery Disconnect
Switch
Operator’s
Manual
Front Platform
Foot Switch
Rear
Lower
Controls
Main Boom
Tip Boom
Jib
Left Side
Tie-Down/Lifting
Lugs
Riser
Boom Lanyard
Anchors
Power to Platform Inlet
Battery
Charger Plug
Hydraulic
Reservoir

Chapter 2 – Specifications
4 AB46JE – 0260072
Working Envelope
Feet
(Meters)
20
(6.1)
15
(4.6)
10
(3.0)
5
(1.5)
35
(10.7)
5
(1.5)
10
(3.0)
25
(7.6)
30
(9.1)
15
(4.6)
20
(6.1)
25
(7.6)
30
(9.1)
40
(12.2)
45
(13.7)
50
(15.2)
0
55
(16.7)

Chapter 2 – Specifications
AB46JE – 0260072 5
General Specifications
Aerial Platform
Working height 52′4″(15.9 m)
Maximum platform height 46′4″(14.1 m)
Up and over height 25′2″(7.6 m)
Maximum horizontal reach 24′6″(7.47 m)
Main boom
Articulation 0° to +72°
Extension 80″(2 m)
Jib
Articulation -70° to +70°
Extension 5′(1.5 m)
Tail swing 0
Turntable rotation 360° non-continuous
Turning radius
Inside 24″(0.6 m)
Outside 9′10″(3 m)
Wheelbase 73″(1.8 m)
Ground clearance 6″(15.2 cm)
Maximum wheel load 7,150 lbs (3,243 kg)
Maximum ground pressure 151 psi (10.6 kg/cm2)
Weight, EVW
Approximate 14,300 lbs (6486 kg)
Width 5′9″(1.7 m)
Stowed length 18′4″ (5.6 m)
Stowed height 6′7″ (2.1 m)
Platform
Dimensions 39″x 72″(99 cm x 178 cm)
Toeboard height 6″(15.2 cm)
Rated work load 500 lb (227 kg)
Rotation 80° CW to 80° CCW
Maximum number of occupants 2 people
Function Speed
Turntable rotation 65 to 85 seconds
Riser
Up 25 to 30 seconds
Down 15 to 20 seconds
Main boom
Up 25 to 30 seconds
Down 18 to 23 seconds
Extend 12 to 16 seconds
Retract 26 to 30 seconds
Platform rotation 16 to 20 seconds
Jib
Up 20 to 25 seconds
Down 30 to 35 seconds
Drive
High, booms stowed 3.2 mph ( 5.1 km/h)
Low, booms raised/extended 0.8 mph (1.3 km/h)
Drive System
Standard Two wheel drive
Gradeability – theoretical 30%
Tires
Non-marking IN240/55D 17.5
Electrical System
Voltage 48 V DC
Source Eight - 6 V 360 amp batteries
Fluid recommended distilled water
Charger 40 amp
Hydraulic System
Maximum pressure 2,800 psi (19,305 kPa)
Reservoir capacity 5 US gal (18.9 l)
System capacity 9 US gal (34 l)
Maximum operating temperature 200°F (93°C)
Hydraulic fluid recommended
Above 10°F (-12°C) Mobil DTE-13M (ISO VG32)
Below 10°F (-12°C) Mobil DTE-11M (ISO VG15)
Ambient Air Temperature Operating Range
Fahrenheit 0°F to 110°F
Celsius -18°C to 43°C
Maximum Wind Speed
Gust or steady 28 mph (45 km/h)

Chapter 2 – Specifications
6 AB46JE – 0260072

AB46JE – 0260072 7
Chapter 3 – Safety
Knowledge of the information in this manual, and proper
training, provide a basis for safely operating the aerial plat-
form. Know the location of all controls and how they oper-
ate to act quickly and responsibly in an emergency.
Safety devices reduce the likelihood of an accident.
Never disable, modify, or ignore any safety device.
Safety alerts in this manual indicate situations where
accidents may occur.
If any malfunction, hazard or potentially unsafe condi-
tion relating to capacity, intended use, or safe operation
is suspected, stop aerial platform operation and seek
assistance.
The operator bears ultimate responsibility for following
all manufacturer’s instructions and warnings, regulations
and safety rules of their employer and/or any state or
federal law.
Electrocution Hazards
The aerial platform is made of metal components and is
not insulated. Regard all conductors as energized. Do
not operate outside during a thunderstorm.
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Minimum Safe Approach Distance
Minimum safe approach distances to energized power
lines and their associated parts must be observed while
operating the aerial platform.
ADanger
The aerialplatform is notelectrically insulated. Death
or serious injury will result from contact with, or in-
adequate clearance from, an energized conductor.
Do not go closer than the minimum safe approach
distance as defined by ANSI.
ANSI publications define minimum distances that must
be observed when working near bus bars and energized
power lines. Table 1 and Figure 3 are reprinted courtesy
of Scaffold Industry Association, ANSI/SIA A92.5.
Table 1 – Minimum Safe Approach Distance
Figure 3 – Minimum Safe Approach Distance
Voltage Range
(Phase to Phase) Minimum Safe Approach Distance
Feet Meters
0 to 300V Avoid Contact
Over 300V to 50kV 10 3.05
Over 50kV to 200kV 15 4.60
Over 200kV to 350kV 20 6.10
Over 350kV to 500kV 25 7.62
Over 500kV to 750kV 35 10.67
Over 750kV to 1000kV 45 13.72

Chapter 3 – Safety
8 AB46JE – 0260072
Prestart Inspection
Perform a prestart inspection before each shift as de-
scribed in Chapter 8. Do not use the aerial platform on
the job unless you are trained and authorized to do so.
Work Place Inspection and Practices
Do not use the aerial platform as a ground connection
when welding.
The welding ground clamp must be attached to the
same structure that is being welded.
Electrical current flow can be very intense, causing
serious internal damage to some components.
Inspect the area before and during aerial platform use.
The following are some potential hazards that may be in
the work place:
Debris
Slopes
Drop-offs or holes
Bumps and floor obstructions
Overhead obstructions
Unauthorized persons
High voltage conductors
Wind and weather conditions
Inadequate surface and support to withstand load
forces applied by the aerial platform in all operating
configurations
Before using the aerial platform in any hazardous (clas-
sified) location, make certain it is approved and of the
type required by ANSI/NFPA 505 for use in that particular
location.
Know and understand the job site traffic-flow patterns and
obey the flagmen, road signs, and signals.
While operating the aerial platform, a good safety prac-
tice is to have qualified personnel in the immediate work
area to:
Help in case of an emergency
Operate emergency controls as required
Watch for loss of control by platform operator
Warn the operator of any obstructions or hazards that
may not be obvious to them
Watch for soft terrain, sloping surfaces, drop-offs, etc.
where stability could be jeopardized
Watch for bystanders and never allow anyone to
be under, or to reach through the booms while
operating the aerial platform
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ADanger
Pinch pointsmay existbetween movingcomponents.
Death or serious injury will result from becoming
trapped between components,buildings, structures,
orother obstacles.Make surethere issufficientclear-
ance aroundthe machine beforemoving the chassis,
booms, or platform. Allow sufficient room and time
to stop movement to avoid contact with structures
or other hazards.
Always look in the direction of movement.
Drive with care and at speeds compatible with the
work place conditions.
Use caution when driving over rough ground, on
slopes, and when turning.
Do not engage in any form of horseplay or permit rid-
ers any place other than in the platform.
Secure all accessories, containers, tools, and other ma-
terials in the platform to prevent them from accidentally
falling or being kicked off the platform. Remove all objects
that do not belong in or on the aerial platform.
Never steady the platform by positioning it against an-
other platform.
AWarning
Thepotentialfor anaccidentincreases when operat-
ingan aerial platform that is damaged or malfunction-
ing. Death or serious injury could result from such
accidents. Do not operate the aerial platform if it is
damaged or malfunctioning.
Do not operate the aerial platform if it is damaged or not
functioning properly. Qualified maintenance personnel
must correct the problem before putting the aerial platform
back into service.
Operation
Use three points of support when entering or exiting the
platform. For example, use two hands and one foot when
climbing into the platform.
Never cover the platform floor grating or otherwise ob-
struct your view below. Make sure the area below the
platform is free of personnel before lowering.
Keep both feet positioned firmly on the platform floor.
Operate the controls slowly and deliberately to avoid
jerky and erratic operation.
Always stop the controls in neutral before going in the
opposite direction.
Do not dismount while the aerial platform is in motion or
jump off the platform.
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Chapter 3 – Safety
AB46JE – 0260072 9
Properly stow the aerial platform and secure it against
unauthorized operation at the end of each work day,
before transporting, or if it is left unattended.
Tip-Over and Falling Hazards
Operate the aerial platform only on a firm, flat, level sur-
face capable of withstanding all load forces imposed by
the aerial platform in all operating conditions. Refer to
the General Specifications chart for the maximum wheel
load and ground pressure. Raise the booms only when
the aerial platform is on level ground.
ADanger
The aerialplatformcan tipover ifit becomesunstable.
Death or serious injury will result from a tip-over ac-
cident. Donot drive or positionthe aerial platformfor
elevated use near any drop-off, hole, slope, soft or
uneven ground, or other tip-over hazard.
All platform occupants must wear a fall restraint device
connected to a lanyard anchor point.
It is best not to transfer from the platform to another
structure or from the structure to the platform, unless
that is the safest way to do the job. Judge each situation
separately taking the work environment into account. If
it is necessary to transfer from the platform to another
structure the following guidelines apply:
1. Where possible, place the platform over a roof or
walking structure to do the transfer.
2. Transfer your anchorage from one structure to the
other before stepping across.
3. Remember that you might be transferring to a
structure where personal fall arrest is required.
4. Use the platform entrance, do not climb over or
through the guardrails.
Do not operate the aerial platform in windy or gusty condi-
tions. Do not add anything to the aerial platform that will
increase the wind loading such as billboards, banners,
flags, etc.
Never operate the aerial platform without all parts of the
guardrail system in place and the gate closed. Make
sure that all protective guards, cowlings, and doors are
securely fastened.
Do not exceed the platform capacity as indicated on the
platform rating placard on the platform. Do not carry loads
that extend beyond the platform guardrails without prior
written consent from Snorkel.
Do not operate the aerial platform from trucks, trailers, rail-
way cars, floating vessels, scaffolds, or similar equipment
unless the application is approved in writing by Snorkel.
Do not use the aerial platform as a crane, hoist, jack, or
for any purpose other than to position personnel, tools,
and materials.
Do not climb on the guardrails or use ladders, planks,
or other devices to extend or increase the work position
from the platform.
Take care to prevent rope, electrical cords, and hoses,
etc., from becoming caught in or on the aerial platform.
If the platform or booms becomes caught on an ad-
jacent structure or other obstacle and is prevented
from normal motion, reverse the control to free the
platform.
If control reversal does not free the platform, evacuate
the platform before attempting to free it.
Electrical System
Charge the batteries in a well-ventilated area free of
flame, sparks, or other hazards that might cause fire or
explosion.
Do not attempt to operate any of the aerial platform func-
tions while the battery charger is plugged in.
AWarning
Batteries give off hydrogen and oxygen that can
combine explosively. Death or serious injury could
result from a chemical explosion. Do not smoke or
permit open flames or sparks when checking the
batteries.
Battery acid can damage the skin and eyes. Serious
infection orreaction could resultif medical treatment
is not given immediately. Wear face and eye protec-
tion when working near the batteries.
Batteries contain sulfuric acid that could damage your
eyes or skin on contact.
Wear a face shield, rubber gloves, and protective
clothing when working around batteries.
If acid contacts your eyes, flush immediately with clear
water and get medical attention.
If acid contacts your skin, wash off immediately with
clear water.
Hydraulic System
The hydraulic system contains hoses with hydraulic fluid
under pressure.
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Chapter 3 – Safety
10 AB46JE – 0260072
ADanger
Hydraulic fluid escaping under pressure can have
enough force to inject fluid into the flesh. Serious
infection orreaction will resultif medical treatmentis
not given immediately. In case of injury by escaping
hydraulic fluid, seek medical attention at once.
Do not place your hand or any part of your body in front
of escaping hydraulic fluid. Use a piece of cardboard or
wood to search for hydraulic leaks.
Placards and Decals
The aerial platform is equipped with placards and decals
that provide instruction for operation and accident preven-
tion. Do not operate the aerial platform if any placards or
decals are missing or not legible.

AB46JE – 0260072 11
This aerial work platform is manufactured with safety
devices, placards, and decals to reduce the likelihood
of an accident.
For the safety of all personnel, do not disable, modify,
or ignore any safety device.
Safety devices are included in the daily prestart in-
spection.
AWarning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury could result from such accidents. Do not alter,
disable, or override any safety device.
If any safety devices are defective, remove the aerial
platform from service until qualified maintenance person-
nel can make repairs.
Emergency Stop Controls
There is an emergency stop control at the lower and
upper controls.
At the lower controls, the emergency stop is a two-posi-
tion push button (refer to Figure 4.1).
Figure 4.1 – Lower Controls
Push the emergency stop button inward to disconnect
power to all control circuits.
Pull the button outward to restore power.
Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged, the lower
controls can still be used to operate the aerial platform.
At the upper controls, the emergency stop is a two-posi-
tion push button (refer to Figure 4.2).
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Emergency
Power Switch
Ground
Operation Switch
Emergency
Stop Button
Emergency
Power Switch
Ground
Operation Switch
Emergency
Stop Button
Chapter 4 – Safety Devices
Figure 4.2 – Upper Controls
Push the emergency stop button inward to disconnect
power to the upper control circuits.
Pull the button outward to restore power.
Emergency Power System
The emergency power system includes a back-up pump
and motor. Use this system to operate the boom and
turntable functions to lower the platform if the main power
system fails due to low battery power or pump failure.
ACaution
The emergency power system is for emergency low-
ering and stowing only. The length of time the pump
can be operated depends on the capacity of the bat-
teries. Do not use this system for normal operation.
Hold the emergency power switch (refer to Figures 4.1
and 4.2) in the direction of the white arrow to activate
the emergency power system.
Release the switch to disengage the emergency
power system.
The length of time the pump can be operated depends
on the capacity of the batteries.
Ground Operation Switch
The ground operation switch (refer to Figure 4.1) prevents
boom and platform movement if a control switch on the
lower control panel is accidentally moved.
Hold the switch up to operate the machine from the lower
controls.
Platform Foot Switch
Step down on the platform foot switch (refer to Figure
4.3) to activate the upper controls.
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Emergency
Power Switch Emergency
Stop Button
Emergency
Power Switch Emergency
Stop Button

Chapter 4 – Safety Devices
12 AB46JE – 0260072
Figure 4.3 – Platform
The foot switch must be engaged and a control must be
moved to operate the boom, drive, and/or platform from
the upper controls.
Guardrails
The guardrails (refer to Figure 4.3) help protect personnel
from falling off the platform.
The guardrail system includes:
A top rail
A mid rail
Three gravity gates: one on each side and one rear
Toeboards around the sides of the platform
The gravity gates allow for access to the platform and
close automatically after entering or exiting the platform.
After entering the platform check to make sure the gates
are fully lowered and even with the mid rail.
Lanyard Anchors
Two lanyard anchors for fall restraint anchorage are pro-
vided below the upper controls at the front of the platform
(refer to Figure 4.3).
Note
The lanyard anchors are not for lifting or tying the ma-
chine down.
All personnel in the platform must connect their fall
restraint device to a lanyard anchor before raising
the platform.
Attach only one fall restraint device to each lanyard
anchor.
Do not use the aerial platform for personal fall
arrest anchorage.
Ground Fault Circuit Interrupter
The electrical power outlet at the platform (refer to Figure
4.4) contains a ground fault circuit interrupter (GFCI) to
provide protection for personnel.
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Lanyard
Anchors
Platform Foot
Switch Toeboard
Gravity
Gate
Mid Rail
Top Rail
Gravity
Gate
Lanyard
Anchors
Platform Foot
Switch Toeboard
Gravity
Gate
Mid Rail
Top Rail
Gravity
Gate
Figure 4.4 – Electrical Power Outlet
Tilt Alarm
If the aerial platform chassis is out of level more than five
degrees when the main boom is raised or extended, or
when the riser boom is raised, an alarm will sound. The
tilt alarm is located under the upper control panel.
ADanger
The aerialplatformcan tipover ifit becomesunstable.
Death or serious injury will result from a tip-over ac-
cident. Donot drive or positionthe aerial platformfor
elevated use near any drop-off, hole, slope, soft or
uneven ground, or other tip-over hazard.
Completely lower the booms and then drive to a level
surface when the tilt alarm sounds.
The tilt alarm is for added protection and does not
justify operating on anything other than firm, flat, level
surfaces.
Horn
The horn may be used to warn personnel on the ground.
The horn switch is to the right of the emergency stop
button on the upper control panel (refer to Figure 4.5).
The horn is operational when the machine is set up for
operation from the upper controls.
Figure 4.5 – Upper Controls
Test Button
Reset Button
Test Button
Reset Button
Horn SwitchHorn Switch

Chapter 4 – Safety Devices
AB46JE – 0260072 13
All Motion Alarm
An optional all motion alarm may be provided on the
machine. The alarm sounds, in short beeps, anytime the
machine functions are being operated. The alarm is used
to warn personnel in the work area to stand clear.
Flashing Light
An amber flashing light may be located on the top of the
counterweight. The flashing light warns personnel that
the aerial platform is in the area.
The light flashes at approximately one flash per second
when the machine is set up for operation from the upper
or lower controls.

Chapter 4 – Safety Devices
14 AB46JE – 0260072

AB46JE – 0260072 15
Figure 5.2 – Upper Controls
Battery Charge Indicator
The battery charge indicator is located at the rear of
the chassis (refer to Figure 5.3). When the batteries are
charging, the battery charge indicator displays the charg-
ing state of the charger.
Figure 5.3 – Battery Disconnect Panel
Hydraulic Fluid Filter Gauge
The fluid filter gauge (refer to Figure 5.4) is located on
the control valve behind the cover on the right side of
the turntable.
Battery Condition
Indicator
Battery Condition
Indicator
Battery Charge IndicatorBattery Charge Indicator
Chapter 5 – Gauges and Displays
The aerial platform is equipped with several gauges to
monitor the condition of the machine before and during
operation.
Hour Meter
The hour meter is located on the lower control panel
(refer to Figure 5.1). It measures the accumulated aerial
platform operating time.
Figure 5.1 – Lower Controls
Drive Fault Light
The drive fault light is located on the lower control panel
(refer to Figure 5.1). It indicates the condition on the drive
control when the foot switch is pressed.
If the drive fault light is lit, the machine is in normal
operation mode and can be driven from the upper
controls.
If the drive fault light is not lit or flashing, there is no
power to the drive control or there is a machine error.
Remove the aerial platform from service until qualified
maintenance personnel can make repairs.
Battery Condition Indicator
There is a battery condition indicator at the upper controls
(refer to Figure 5.2). The battery condition indicator dis-
plays the level of available battery power to operate the
aerial platform when the foot switch is pressed.
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Drive Fault Light
Hour Meter
Drive Fault Light
Hour Meter

Chapter 5 – Gauges and Displays
16 AB46JE – 0260072
Hydraulic Fluid Level Sight Gauge
A sight gauge on the end of the reservoir displays the
level of the hydraulic fluid (refer to Figure 5.5).
Figure 5.5 – Hydraulic Fluid Gauge
Remove the drive control compartment cover and check
the fluid level with the aerial platform in the stowed posi-
tion, booms completely down and retracted. Otherwise,
the cylinders act as large reservoirs for hydraulic fluid
making the level appear too low. The fluid level should
be visible in the sight gauge.
Fluid Sight GaugeFluid Sight Gauge
Figure 5.4 – Hydraulic Fluid Filter Gauge
During high pump flow situations, the gauge indicates
the condition of the filter.
When the needle on the gauge is in the red zone, its
time to change the filter.
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Filter GaugeFilter Gauge