Operator’s
Manual
Part Number 8210048
November, 2008
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 defi ned 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, scissors structure, 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, scissor structure, or any part of the
aerial platform 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.
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
Component Identifi cation ............................................3
Chapter 2 – Specifi cations
General Specifi cations................................................ 4
Chapter 3 – Safety
Electrocution Hazards ................................................5
Minimum Safe Approach Distance .............................5
Prestart Inspection......................................................6
Work Place Inspection and Practices ......................... 6
Operation .................................................................... 6
Tip-Over and Falling Hazards .....................................7
Electrical System ........................................................7
Hydraulic System........................................................7
Placards and Decals...................................................8
Chapter 4 – Safety Devices
Emergency Stop Controls...........................................9
Pothole Protector Skids .............................................. 9
Drive/Lift Level Sensor Interlock ...............................10
Emergency Lowering Knob ......................................10
Safety Prop ...............................................................10
Guardrails ................................................................. 10
Lanyard Anchors.......................................................10
Tilt Alarm ................................................................... 11
Horn Button ..............................................................11
Lowering Alarm ......................................................... 11
All Motion Alarm........................................................11
Flashing Lights .........................................................11
Chapter 5 – Gauges and Displays
Display Screen .........................................................13
Hour Meter ............................................................13
Battery Charge Indicator...........................................13
Chapter 7 – Controls
Battery Disconnect ...................................................17
Lower Controls .........................................................17
Start Switch ...........................................................17
Emergency Stop Button ........................................17
Enable Button ........................................................17
Platform Raise/Lower Switch ................................17
Upper Controls .........................................................18
Emergency Stop Button ........................................18
Joystick .................................................................18
Interlock Switch .....................................................19
Steer Switch ..........................................................19
High Speed Drive ..................................................19
Low Speed Drive ................................................... 19
Platform Raise/Lower Button ................................19
Horn Button ...........................................................19
Chapter 8 – Prestart Inspection
Operator’s Manual .................................................... 21
Electrical System ......................................................21
Battery Fluid Level ................................................21
Battery Terminals ...................................................22
Battery Charger ..................................................... 22
Safety Prop ...............................................................22
Cables and Wiring Harness ......................................23
Hydraulic System......................................................23
Fluid Level ............................................................. 23
Hoses, Tubes, and Fittings ....................................23
Tires and Wheels ......................................................23
Lower Control Station ............................................... 24
Operating Controls ................................................24
Emergency Stop ....................................................24
Emergency Lowering ................................................24
Lowering Alarm ......................................................... 25
All Motion Alarm........................................................25
Flashing Lights .........................................................25
Structures .................................................................25
Weldments ............................................................25
Slide Blocks ...........................................................25
Fasteners ..............................................................25
Upper Control Station ............................................... 26
Guardrail System ..................................................26
Platform Extension ................................................26
Lanyard Anchors ...................................................27
Operating Controls ................................................27
Emergency Stop ....................................................28
Horn Button ...........................................................28
Placards and Decals.................................................28
Prestart Inspection Checklist .................................... 31
Chapter 6 – Batteries
General Maintenance ............................................... 15
Charging ................................................................... 15
S2633 – 8210048
Chapter 9 – Operation
Preparing for Operation ............................................ 33
Lower Controls .........................................................33
Upper Controls .........................................................33
Platform ....................................................................34
Raising and Lowering ............................................34
Extending ..............................................................34
Wallboard Loading Gate ........................................35
Table of Contents
Driving and Steering ................................................. 35
Drive Speeds ........................................................36
Drive/Lift Level Sensor Interlock ...........................36
All Motion Alarm........................................................36
Fold Down Guardrails ...............................................36
Swing-Out Trays ....................................................... 38
Chapter 10 – Stowing and Transporting
Stowing ..................................................................... 39
Transporting .............................................................39
Lifting With a Forklift ..............................................39
Driving ...................................................................40
Winching ...............................................................40
Hoisting .................................................................41
Securing for Transport ...........................................42
Chapter 11 – Emergency Operation
Emergency Lowering Knob ......................................43
Towing ...................................................................... 43
Chapter 12 – Troubleshooting
Troubleshooting Chart .............................................. 45
Appendix A – Glossary
Limited Warranty
S2633 – 8210048
Chapter 1 – Introduction
Aerial Platform Features
The aerial platform is a self-propelled scissors lift that
has been designed to raise personnel, their tools, and
material to the workstation. The aerial platform has been
designed for use on hard surface fl oors such as concrete.
The platform is raised and lowered with a hydraulic cylinder. A hydraulic motor on each of the front drive wheels
provides power to move the aerial platform.
The standard machine includes the following features:
y
39″ (0.99 m) platform extension
y
Fold-down guardrails
y
Wallboard loading gate
y
Entry gate
y
Horn
y
Tilt alarm
y
Proportional drive and lift controls
y
Working height up to 32′ (0.24 m)
y
24 volt DC electrical motor
y
Lowering alarm
y
Level sensor with drive/lift interlock
y
25 amp battery charger
y
Non-marking solid rubber tires
y
Tie-down/lifting lugs
y
Automatic pothole protection system
y
Hour meter
y
Low voltage indicator
y
Swing-out hydraulic and electrical component trays
y
Non-slip metal platform fl oor
y
Forklift loadable from three sides
y
Rear forklift pockets
y
Five year limited warranty
The aerial platform has been manufactured, when applicable, to conform to all applicable requirements of the
following organizations:
y
Occupational Safety and Health Administration
(OSHA)
y
American National Standards Institute (ANSI)
Options
The following options may be provided on the machine:
y
All motion alarm
y
Flashing lights
y
Canadian Standards Association (CSA) certifi cation
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.
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.
AW arning
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 in minor or moderate 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.
AW arning
The potential for an accident increases when the
aerial platform is operated by personnel who are not
trained and authorized. Death or serious injury could
result from such accidents. Read and understand the
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 qualifi ed person.
y
Become profi cient in knowledge and actual operation
before using the aerial platform on the job.
y
The operator must be trained and authorized to perform any functions of the aerial platform.
S2633 – 8210048 1
Chapter 1 – Introduction
Operation of the aerial platform must be within the
y
scope of the machine specifi cations.
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 qualifi ed to do so. Following
the daily prestart inspection in this Operator’s Manual will
help keep the aerial platform in optimum working condition. Other maintenance functions must be performed
by maintenance personnel who are qualifi ed to work on
the aerial platform.
ACaution
Welding current can be very intense. Damage to electronic components may result. Connect the ground
clamp as close as possible to the area being welded.
Disconnect battery cables and any microprocessors
and engine control modules before welding on the
machine.
If it becomes necessary to weld aerial platform components 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.
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 responsibility 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 A92.6–2006 Self-Propelled 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
Do not modify this aerial platform without prior written consent of the Snorkel Engineering Department. Modifi cation
may void the warranty, adversely affect stability, or affect
the operational characteristics of the aerial platform.
2 S2633 – 8210048
Component Identifi cation
Operator’s
Manual
Platform
Extension
Tie-Down/Lifting
Chapter 2 – Specifi cations
Lanyard
Guardrails
Upper
Controls
Lugs
Front
Anchors
Controls
Hydraulic Tray
Hydraulic Reservoir • Hydraulic Fluid Filter
Entry
Gate
Toeboards
Platform
Rear
Lower
Wallboard
Loading Gate
Right
Guardrail
Lanyard
Anchors
Scissors
Structure
Rear
Battery Charge
Indicator
Batteries • Charger Plug • Battery Disconnect
Battery Tray
Extension
Guardrails
Front
Left
Guardrail
Front
Guardrail
Chassis
Left Side
Emergency
Lowering Knob
Entry
Step
Tie-Down/Lifting
Lugs
Forklift
Pockets
Right Side
S2633 – 8210048 3
Rear
Chapter 2 – Specifi cations
General Specifi cations
Aerial Platform
Working height 32.5′ (9.93 m)
Maximum platform height 26′ (7.93 m)
Minimum working height 43′ (1.09 m)
Turning radius
Inside 8″ (203 mm)
Wheelbase 74.75″ (1.9 m)
Ground clearance
Pothole protector raised 3.5″ (89 mm)
Pothole protector lowered 3.35″ (85 mm)
Maximum wheel load 1,800 lbs (818 kg)
Maximum ground pressure 137 psi (9.6 kg/cm
Empty vehicle weight (EVW)
Approximate 5,200 lbs (2358 kg)
Width 32.5″ (0.82 m)
Stowed height 86″ (2.19 m)
Rails lowered 78.25″ (1.99 m)
Stowed length
Extension in 92.5″ (2.35 m)
Extension out 128.5″ (3.26 m)
Maximum Chassis Inclination
Side-to-side 1.5 degrees
Front-to-rear 2.5 degrees
Platform
Dimensions
Extension in 28″ x 87″ (.71 m x 2.21 m)
Extension out 28″ x 126″ (.71 m x 3.20 m)
Guardrail height 42.25″ (1.1 m)
Toeboard height 6″ (152 mm)
Rated work load
Total 750 lbs (340 kg)
On extension 250 lbs (110 kg)
Maximum number of occupants
Total 3 people
On extension 1 person
Drive System
Standard Two wheel drive
Gradeability 26% (14.5°)
Maximum drive height 26′ (7.93 m)
Parking brake Dual spring applied
hydraulic release
Tires
Non-marking, solid rubber 15″ (381 mm) diameter
2
)
Electrical System
Voltage 24 V DC
Source Four - 6V 235 Ah batteries
Fluid recommended Distilled water
Battery charger 25 A, 110/220 VAC
Minimum battery weight 66 lb (30 kg)
DC electric motor 4 hp
Hydraulic System
Maximum pressure 3,000 psi (20,700 kPa)
Reservoir capacity 4 US gal (15 l)
Maximum operating temperature 200°F (93°C)
Minimum operating temperature -20°F (-28°C)
Hydraulic fl uid recommended
Above 10°F (-13°C) Mobil DTE-13M (ISO VG32)
Below 10°F (-13°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)
Function Speed
Platform raise 42 seconds
Platform lower 40 seconds
Drive speed
High, platform lowered 0.50 mph (0.8 km/h)
Low, platform raised 2.0 mph (3.2 km/h)
4 S2633 – 8210048
Chapter 3 – Safety
Knowledge of the information in this manual, and proper
training, provide a basis for safely operating the aerial platform. Know the location of all controls and how they operate to act quickly and responsibly in an emergency.
Safety devices reduce the likelihood of an accident.
y
Never disable, modify, or ignore any safety device.
y
Safety alerts in this manual indicate situations where
accidents may occur.
If any malfunction, hazard or potentially unsafe condition
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.
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 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 defi ned by ANSI.
ANSI publications defi ne 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 A92.6.
Voltage Range
(Phase to Phase)
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
Minimum Safe Approach Distance
Feet Meters
Table 1 – Minimum Safe Approach Distance
Figure 3 – Minimum Safe Approach Distance
S2633 – 8210048 5
Chapter 3 – Safety
Prestart Inspection
Perform a prestart inspection before each shift as described 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.
y
The welding ground clamp must be attached to the
same structure that is being welded.
y
Electrical current fl ow 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:
y
Debris
y
Slopes
y
Drop-offs or holes
y
Bumps and fl oor obstructions
y
Overhead obstructions
y
Unauthorized persons
y
High voltage conductors
y
Wind and weather conditions
y
Inadequate surface and support to withstand load
forces applied by the aerial platform in all operating
confi gurations
Before using the aerial platform in any hazardous (classifi ed) 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 traffi c-fl ow patterns and
obey the fl agmen, road signs and signals.
While operating the aerial platform, a good safety practice is to have qualifi ed personnel in the immediate work
area to:
y
Help in case of an emergency
y
Operate emergency controls as required
y
Watch for loss of control by platform operator
y
Warn the operator of any obstructions or hazards that
may not be obvious to them
y
Watch for soft terrain, sloping surfaces, drop-offs, etc.
where stability could be jeopardized
y
Watch for bystanders and never allow anyone to be
under, or to reach through the scissors structure while
operating the aerial platform
chassis or platform. Allow suffi cient room and time
to stop movement to avoid contact with structures
or other hazards.
Always look in the direction of movement.
y
Drive with care and at speeds compatible with the
work place conditions.
y
Use caution when driving over rough ground, on
slopes and when turning.
y
Do not engage in any form of horseplay or permit riders any place other than in the platform.
Secure all accessories, containers, tools and other materials 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 another platform.
AW arning
The potential for an accident increases when operating an aerial platform that is damaged or malfunctioning. 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. Qualifi ed 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 fl oor grating or otherwise ob-
struct your view below. Make sure the area below the
platform is free of personnel before lowering.
Make sure the area below the platform is free of personnel before lowering.
Keep both feet positioned fi rmly on the platform fl oor.
y
Operate the controls slowly and deliberately to avoid
jerky and erratic operation.
y
Always stop the controls in neutral before going in the
opposite direction.
ADanger
Pinch points may exist between moving components.
Do not dismount while the aerial platform is in motion or
jump off the platform.
Death or serious injury will result from becoming
trapped between components, buildings, structures,
or other obstacles. Make sure there is suffi cient
clearance around the machine before moving the
6 S2633 – 8210048
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.
Chapter 3 – Safety
Tip-Over and Falling Hazards
Operate the aerial platform only on a fi rm, fl at, level
surface capable of withstanding all load forces imposed
by the aerial platform in all operating conditions. Refer
to the General Specifi cations chart for the maximum
wheel load and drive/lift level sensor interlock information. Raise the platform only when the aerial platform is
on level ground.
ADanger
The aerial platform can tip over if it becomes unstable.
Death or serious injury will result from a tip-over accident. Do not drive or position the aerial platform
for elevated use near any drop-off, hole, slope, soft
or uneven ground, or other tip-over hazard. Do not
raise the platform outdoors in wind speeds above 28
mph (12.5 m/s).
Do not operate the aerial platform within 4′ (1.2 m) of any
drop-off or hole.
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. If you are using a fall restraint, transfer your anchorage from one structure to the other before stepping
across.
2. Remember that you might be transferring to a struc-
ture where personal fall arrest is required.
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.
y
If the platform or scissors structure becomes caught
on an adjacent structure or other obstacle and is
prevented from normal motion, reverse the control to
free the platform.
y
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
fl ame, sparks, or other hazards that might cause fi re or
explosion.
Do not operate any of the aerial platform functions while
the battery charger is plugged in.
AW arning
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 fl ames or sparks when checking the
batteries.
Battery acid can damage the skin and eyes. Serious
infection or reaction could result if medical treatment
is not given immediately. Wear face and eye protection when working near the batteries.
3. Use the platform entrance, do not climb over or
through the guardrails.
Do not operate the aerial platform in windy or gusty conditions. Do not add anything to the aerial platform that will
increase the wind loading such as billboards, banners,
fl ags, etc.
Never operate the aerial platform without all parts of the
guardrail system in place and the safety gate closed.
Make sure that all protective guards, cowlings, and doors
are securely fastened.
Do not exceed the platform capacity nor the platformextension 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, railway cars, fl oating 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.
y
Batteries contain sulfuric acid that can damage your
eyes or skin on contact.
y
Wear a face shield, rubber gloves, and protective
clothing when working around batteries.
y
If acid contacts your eyes, fl ush immediately with clear
water and get medical attention.
y
If acid contacts your skin, wash off immediately with
clear water.
Hydraulic System
The hydraulic system contains hoses with hydraulic fl uid
under pressure.
ADanger
Hydraulic fl uid escaping under pressure can have
enough force to inject fl uid into the fl esh. Serious
infection or reaction will result if medical treatment is
not given immediately . In case of injury by escaping
hydraulic fl uid, seek medical attention at once.
Do not place your hand or any part of your body in front
of escaping hydraulic fl uid. Use a piece of cardboard or
wood to search for hydraulic leaks.
S2633 – 8210048 7
Chapter 3 – Safety
Placards and Decals
The aerial platform is equipped with placards and decals
that provide instruction for operation and accident prevention. Do not operate the aerial platform if any placards or
decals are missing, damaged, or illegible.
8 S2633 – 8210048
Chapter 4 – Safety Devices
This aerial work platform is manufactured with safety
devices, placards, and decals to reduce the likelihood
of an accident.
y
For the safety of all personnel, do not disable, modify,
or ignore any safety device.
y
Safety devices are included in the daily prestart
inspection.
AW arning
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.
Emergency
Emergency
Stop Button
Stop Button
Figure 4.2 – Upper Controls
If any safety devices are defective, remove the aerial
platform from service until qualifi ed maintenance person-
nel can make repairs.
Emergency Stop Controls
There is an emergency stop control at the lower and
upper controls. Both the lower and upper control emergency stop buttons must be on to operate the machine.
At the lower controls, the emergency stop is a two-position red push button (refer to Figure 4.1).
Emergency
Emergency
Stop Button
Stop Button
Push the emergency stop button inward to disconnect
y
power to the upper control circuits.
y
Twist the button clockwise to restore power.
Pothole Protector Skids
When the platform raise function is actuated at either
the lower or upper controls, the pothole protector skids
automatically lower just before the platform is elevated.
Ground clearance is reduced from 3.5″ (89 mm) to 3.35″
(85 mm) when the skids lock into position (refer to Figure
4.3).
Pothole Protector
Pothole Protector
Skid
Skid
Figure 4.1 – Lower Controls
y
Push the emergency stop button inward to disconnect
Figure 4.3 – Pothole Protector Skid
power to all control circuits.
y
Twist the button clockwise to restore power.
At the upper controls, the emergency stop is a two-position red push button (refer to Figure 4.2).
The aerial platform can tip over if it becomes unstable.
Death or serious injury will result from a tip-over accident. Do not drive or position the aerial platform for
elevated use within four feet of any drop-off, hole, or
ADanger
other tip-over hazard.
This protection system limits the tilt angle if a wheel is
driven into a drop-off or hole. This greatly reduces the
likelihood of the aerial platform tipping over.
The pothole protection system is for added protection and
does not justify operating near drop-offs or holes.
S2633 – 8210048 9
Chapter 4 – Safety Devices
Drive/Lift Level Sensor Interlock
The aerial platform drive and lift functions are interlocked
through a level sensor system. The drive/lift level sensor
interlock operates when the platform is elevated approximately 6′ (1.8 m).
If the chassis is tilted more than two degrees side-to-side
or front-to-rear, the drive and lift functions will not operate
and an alarm will sound.
Lower the platform and drive to a level surface when the
drive/lift level sensor alarm sounds.
The drive/lift level sensor system is for added protection
and does not justify operating on anything other than fi rm,
fl at, level surfaces.
Safety PropSafety Prop
Figure 4.5 – Safety Prop
Emergency Lowering Knob
The emergency lowering knob may be used to lower
the platform if there is a malfunction in the hydraulic or
electrical system. The knob is mounted at the rear of the
aerial platform (refer to Figure 4.4).
Emergency
Emergency
Lowering Knob
Lowering Knob
Figure 4.4 – Rear of Machine
y
Pull the emergency lowering knob outward to open the
cylinder bleed down valve for emergency lowering.
Safety Prop
The safety prop (refer to Figure 4.5) is used to support
the scissors structure when access to the scissors arm
components or the chassis is required. Always use the
safety prop when the platform is raised during inspection
and maintenance.
Guardrails
The guardrails (refer to Figure 4.6) help protect personnel
from falling off the platform.
The guardrail system includes:
y
A top rail
y
A mid rail
y
An entry gate
y
A wallboard loading gate
y
Toeboards around the sides of the platform.
Wallboard Loading Gate
Wallboard Loading Gate
Entry
Entry
Gate
Gate
Figure 4.6 – Upper Controls
The entry gate allows for access to the platform. The
gate must be securely latched except when personnel
are entering or leaving the platform.
Top Rail
Top Rail
Mid Rail
Mid Rail
Toeboard
Toeboard
The wallboard loading gate can be used for loading work
materials in the platform. The gate must be securely
fastened closed except when personnel are loading or
unloading work materials in the platform.
Lanyard Anchors
Four lanyard anchors for fall restraint anchorage are provided on the fl oor of the platform (refer to Figure 4.7):
10 S2633 – 8210048
Lanyard
Lanyard
Anchors
Anchors
Figure 4.7 – Platform
Note
The lanyard anchors are not designed for lifting or tying
the machine down.
y
All personnel in the platform must connect their fall
restraint device to a lanyard anchor before raising
the platform.
y
Attach only one fall restraint device to each lanyard
anchor.
Chapter 4 – Safety Devices
Horn Button
The horn button may be used to warn personnel on the
ground. The horn button is located on the upper control
panel (refer to Figure 4.8).
HornHorn
Figure 4.8 – Upper Controls
Lowering Alarm
When the aerial platform is lowered, the alarm emits a
loud beeping sound to warn personnel in the work area
to stand clear.
y
Do not use the lanyard anchors for personal fall arrest anchorage.
Tilt Alarm
If the aerial platform chassis is out of level more than
2 degrees side-to-side or front-to-rear when the platform
is raised, an alarm will sound.
ADanger
The aerial platform can tip over if it becomes unstable.
Death or serious injury will result from a tip-over accident. Do not drive or position the aerial platform
for elevated use near any drop-off, hole, slope, soft
or uneven ground, or other tip-over hazard.
Completely lower the platform and 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 fi rm, fl at, level
surfaces.
ADanger
Pinch points exist on the machine. Death or serious
injury will result if the platform lowers onto personnel.
Stand clear while raising and lowering the platform.
Be careful when lowering the platform. Keep hands and
fi ngers away from the machine components.
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 warm personnel in the work area to stand clear.
Flashing Lights
The optional fl ashing lights are mounted on each side of
the machine and may be used to warn personnel that the
aerial platform is in the area.
The lights fl ash at approximately one fl ash per second
when the machine is operated from the upper or lower
controls.
S2633 – 8210048 11
Chapter 4 – Safety Devices
12 S2633 – 8210048
Chapter 5 – Gauges and Displays
The aerial platform is equipped with a display screen, an
hour meter and a battery charge indicator to monitor the
condition of the machine before and during operation.
Display Screen
An LED display screen is located on the upper control
panel (refer to Figure 5.1).
Emergency
Emergency
Stop Button
Stop Button
Display Screen
Display Screen
Figure 5.1 – Upper Controls
The display screen shows:
5. Push the emergency stop button inward.
Battery Charge Indicator
The battery charge indicator is located at the right side of
the chassis (refer to Figure 5.2). When the batteries are
charging, the battery charge indicator displays the level
of charge in the batteries.
Battery Charge
Battery Charge
Indicator
Indicator
Figure 5.2 – Battery Tray
y
general operators information.
y
fault codes used to locate and eliminate situations
where machine operation may be interrupted.
Note
Refer to Chapter 12 for a list of fault codes.
Hour Meter
The hour meter is part of the digital display on the upper
control panel (refer to Figure 5.1). It measures the accumulated aerial platform operating time.
To view the hour meter reading:
1. From the lower controls, twist the emergency stop
button clockwise to the on position and turn the start
switch on.
2. From the upper controls, push the emergency stop
button inward.
3. Press and hold the platform raise/lower and horn buttons and twist the emergency stop button to restore
power. The display should now have “hr” shown.
4. Press the right side of the steer switch to scroll
through the hour meter reading, two digits at a
time.
For example, if pressing the switch slowly three times
displays “10” followed by “40” and then “hr” after the
third time, the accumulated aerial platform operating
time is 1,040 hours.
S2633 – 8210048 13
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