Snorkel AB46JRT User Manual
Oper ator’s
Manual
Part Number 0260071 (509646-100)
April 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 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.
California
Proposition 65 Warning
Diesel and gasoline engine exhaust and some of its constituents are known by the State of California to cause
cancer, birth defects or other reproductive harm.
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 – Specications
Component Identication ............................................3
Working Envelope ......................................................4
General Specications................................................5
Engine Specications .................................................6
Engine Oil Viscosity ....................................................6
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
Engine and Fuel Handling Precautions ....................10
Placards and Decals.................................................10
Chapter 4 – Safety Devices
Emergency Stop Controls.........................................11
Emergency Power System .......................................11
Ground Operation Switch .........................................11
Platform Foot Switch ................................................12
Guardrails .................................................................12
Lanyard Anchors.......................................................12
Ground Fault Circuit Interrupter ................................12
Tilt Alarm ...................................................................12
Engine Protection Systems ......................................12
High Engine Temperature Alarm ...........................12
Low Oil Pressure Alarm ........................................13
Horn ..........................................................................13
All Motion Alarm........................................................13
Flashing Light ...........................................................13
Chapter 5 – Gauges and Displays
Hour Meter................................................................15
Fuel Gauge ...............................................................15
Engine Oil .................................................................15
Hydraulic Fluid Filter Gauge .....................................15
Hydraulic Fluid Level Sight Gauge ...........................15
Chapter 6 – Controls
Battery Disconnect Switch ........................................17
Lower Controls .........................................................17
Preheat Button ......................................................17
Start Switch ...........................................................17
Emergency Stop Button ........................................18
Controls Selector Switch .......................................18
Ground Operation Switch ......................................18
Rotation Switch .....................................................18
Riser Switch ..........................................................18
Boom Elevation Switch .........................................18
Boom Extension Switch ........................................19
Jib Articulation Switch ...........................................19
Platform Level Switch ...........................................19
Platform Rotation Switch .......................................19
Engine/Emergency Power Switch .........................19
Hydraulic Oil Warm-Up Switch ..............................19
Circuit Breaker Reset Buttons ..................................19
Upper Controls .........................................................20
Preheat Switch ......................................................20
Start Switch ...........................................................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 ........................................22
Jib Articulation Switch ...........................................22
Platform Level Switch ...........................................22
Platform Rotation Switch .......................................22
Engine/Emergency Power Switch .........................22
Horn Switch ...........................................................23
Platform Foot Switch .............................................23
AC Generator Switch ............................................23
Hydraulic Oil Warm-Up Switch ..............................23
Chapter 7 – Prestart Inspection
Operator’s Manual Holder ........................................25
Engine ......................................................................25
Oil Level ................................................................25
Coolant ..................................................................26
Radiator ................................................................26
Fuel Tank ...............................................................26
Fuel Line ...............................................................26
Electrical System ......................................................26
Battery Fluid Level ................................................27
Battery Terminals ..................................................27
Cables and Wiring Harness ......................................27
Hydraulic System......................................................27
Fluid Level .............................................................27
Fluid Filter .............................................................28
Hoses, Tubes, and Fittings ...................................28
AB46JRT – 0260071
Table of Contents
Tires and Wheels ......................................................28
Air Filled ................................................................28
Foam Filled ...........................................................29
Lower Control Station ...............................................29
Operating Controls ................................................29
Emergency Stop ...................................................29
Emergency Power .................................................30
Level Sensor.............................................................30
Flashing Light ...........................................................30
Structures .................................................................30
Weldments ............................................................30
Boom Slide Pads ..................................................30
Fasteners ..............................................................31
Upper Control Station ...............................................31
Guardrail System ..................................................31
Lanyard Anchors ...................................................31
Operating Controls ................................................31
Emergency Stop ...................................................32
Emergency Power .................................................32
Horn Switch ...........................................................32
Electrical Power Outlet ..........................................32
All Motion Alarm........................................................33
Placards and Decals.................................................33
Prestart Inspection Checklist ....................................39
Chapter 8 – Operation
Cold Weather Start-Up .............................................41
Hydraulic System Cold Weather Warm-Up .............41
Hydraulic System Warm-Up Switch ......................41
Manually Warming The Hydraulic System ............41
Preparing for Operation ............................................42
Lower Controls .........................................................42
Upper Controls .........................................................42
Boom Operation ....................................................43
Driving and Steering .............................................43
Drive Speeds ........................................................44
Pivoting Front Axle....................................................44
All Motion Alarm........................................................45
Gradeability ..............................................................45
Theoretical Gradeability ........................................45
Actual Gradeability ................................................45
Percent vs. Degree of Slope .................................45
Driving on a Slope .................................................46
Calculating Percent Grade ....................................46
Machine Gradeability ............................................46
Electrical Power Outlet .............................................46
AC Generator ...........................................................47
Air Line .....................................................................47
Chapter 9 – Stowing and Transporting
Stowing .....................................................................49
Transporting .............................................................49
Driving ...................................................................49
Winching ...............................................................50
Hoisting .................................................................50
Securing for Transport ..........................................51
Chapter 10 – Emergency Operation
Emergency Power System .......................................53
Lower Controls ......................................................53
Upper Controls ......................................................53
Chapter 11 – Troubleshooting
Troubleshooting Chart ..............................................55
Appendix A – Glossary
Limited Warranty
AB46JRT – 0260071
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 booms are raised and lowered with
hydraulic cylinders. Hydraulic motors on the drive wheels
provide power to move the aerial platform.
The standard machine includes the following features:
• Proportional controls
• Hour meter
• Tie-down/lifting lugs
• AC 110V electrical outlet with GFCI at platform
• Horn
• 5 degree tilt alarm
• Pivoting front axle
• Four wheel drive
• High engine temperature shut down
• Low oil pressure shut down
• 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
• Kubota V1505-TE diesel engine
• Five year limited warranty
The aerial platform has been manufactured, when applicable, to conform to all applicable requirements of the
following organizations:
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.
AWarning
Indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
• 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
• All motion alarm
• Foam filled tires
• Hydraulic fluid warm-up system
•
AC generator – hydraulic powered, 110 V, 2,000 W
• 8 foot steel 500 lb capacity platform with three gravity
gates: one on each side and one rear
• 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.
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 specifications 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 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.
AB46JRT – 0260071 1
Chapter 1 – Introduction
Training is essential and must be performed by a qualified person.
• Become proficient in knowledge and actual operation
before using the aerial platform on the job.
• The operator must be trained and authorized to perform 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 condition. Other maintenance functions must be performed
by maintenance personnel who are qualified 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.
Do not modify this aerial platform without prior written consent of the Snorkel Engineering Department. Modification
may void the warranty, adversely affect stability, or affect
the operational characteristics of the aerial platform.
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 A92.5-2006 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
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.
http://www.snorkelusa.com
2 AB46JRT – 0260071
Component Identication
Chapter 2 – Specications
Upper Controls
Platform
Tie-Down Lugs
Engine Compartment
Engine • Hydraulic Pump • Battery
Level Sensor • Drive Valve Block
Hydraulic Fluid
Reservoir and Filter
Power to Platform Outlet
Riser
Rear
Chassis
Right Side
Hydraulic Reservoir
Hydraulic Fluid Filter
Pivoting Front Axle
Tie-Down/Lifting Lugs
Front
Main Boom
Tip Boom
Riser Boom
Lower
Controls
Front
Fuel Tank
Battery Disconnect Switch
Rear
Jib
Lanyard
Anchors
Operator’s
Manual
Platform
Foot Switch
Power to Platform Inlet
Tie-Down/Lifting Lugs
Left Side
AB46JRT – 0260071 3
Chapter 2 – Specications
Working Envelope
55
(16.7)
50
(15.2)
45
(13.7)
40
(12.2)
35
(10.6)
30
(9.1)
25
(7.6)
20
(6.1)
15
(4.5)
10
(3.0)
5
(1.5)
0
30
Feet
(Meters)
4 AB46JRT – 0260071
(9.1)
25
(7.6)
20
(6.1)
15
(4.5)
10
(3.0)
5
(1.5)
General Specications
Chapter 2 – Specications
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″ (7.4 m)
Main boom
Articulation 0° to +72°
Extension 80″ (2.0 m)
Jib
Articulation -70° to +70°
Extension 5′ (1.5 m)
Tail swing 0
Turntable rotation 360° non-continuous
Turning radius
Inside 32″ (0.8 m)
Outside 10′ 5″ (3.1 m)
Wheelbase 8′ 6″ (2.5 m)
Ground clearance 13″ (33 cm)
Maximum wheel load 9,850 lbs (4,470 kg)
Maximum ground pressure 125 psi (8.8 kg/cm²)
Weight, EVW
Approximate 14,600 lbs (6,622 kg)
Width 6′ 10″ (2.1 m)
Stowed length 18′ 8″ (5.6 m)
Stowed height 7′ 2″ (2.1 m)
Platform
Dimensions
Standard Steel 39″ x 72″ (99 cm x 183 cm)
Optional Aluminum 30″ x 96″ (76 cm x 244 cm)
Rated work load
Steel 39″ x 72″ 500 lb (227 kg)
Aluminum 30″ x 96″ 500 lb (227 kg)
Toeboard height 6″ (15.2 cm)
Rotation 90° CW to 90° CCW
Maximum number of occupants 2 people
Optional AC generator 110 V, 2,000 W
Function Speed
Turntable rotation 65 to 85 seconds
Riser
Up 35 to 40 seconds
Down 20 to 25 seconds
Main boom
Up 25 to 30 seconds
Down 20 to 25 seconds
Extend 20 to 25 seconds
Retract 22 to 27 seconds
Platform rotation 16 to 20 seconds
Jib
Up 12 to 16 seconds
Down 10 to 14 seconds
Drive
High, booms stowed 4.5 mph (7.2 km/h)
Low, booms raised/extended 0.8 mph (1.2 km/h)
Drive System
Standard Four wheel drive
Gradeability – theoretical 45%
Tires
Bar lug 355/55D625NHS, 14 ply
Electrical System
Voltage 12 V DC negative chassis ground
Source One - 12 V 600 CCA batteries
Fluid recommended distilled water
Hydraulic System
Drive circuit max. pressure 5,000 psi (34,473 kPa)
Boom circuit max. pressure 2,750 psi (18,960 kPa)
Reservoir capacity 25 US gal (94 l)
System capacity 65 US gal (246 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)
Engine
Diesel Kubota V1505-TE
Fuel Tank Capacity
Diesel 25 US gal (94 l)
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)
AB46JRT – 0260071 5
Chapter 2 – Specications
Engine Specications
Engine
Kubota
V1505-TE
Note 1: Refer to the Kubota Operator’s Manual for specific fuel recommendations and specifications.
Note 2: Refer to the Kubota Operator’s Manual for specific coolant recommendations and specifications.
Note 3: Refer to the Kubota Operator’s Manual for specific lubricating oil recommendations and specifications.
Displacement Fuel Grade Coolant
91 cu. in.
(1498 cm3)
Diesel Fuel No. 2-D
ASTM D975
1
50% water
50% Antifreeze
2
Engine Oil Viscosity
Kubota V1505-TE
Oil
Capacity
1.77 gal
(6.7 liter)
Oil
Grade
API:
CD grade or
higher
3
6 AB46JRT – 0260071
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.
• 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 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 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.
Voltage Range
(Phase to Phase)
0 to 300V
Over 300V to 50kV
Over 50kV to 200kV
Over 200kV to 350kV
Over 350kV to 500kV
Over 500kV to 750kV
Over 750kV to 1000kV
Table 1 – Minimum Safe Approach Distance
Minimum Safe Approach Distance
Feet Meters
Avoid Contact
10
15
20
25
35
45
3.05
4.60
6.10
7.62
10.67
13.72
Figure 3 – Minimum Safe Approach Distance
AB46JRT – 0260071 7
Chapter 3 – Safety
Prestart Inspection
Perform a prestart inspection before each shift as described in Chapter 7. 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 (classified) location, make certain it is approved and of the
type required by ANSI/NFPA 505 for use in that particular
location.
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
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.
AWarning
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. Qualified maintenance personnel
must correct the problem before putting the aerial platform
back into service.
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 practice 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
ADanger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components, buildings, structures,
or other obstacles. Make sure there is sufficient clearance around the machine before moving the chassis,
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 obstruct 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.
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.
8 AB46JRT – 0260071
Chapter 3 – Safety
Tip-Over and Falling Hazards
Operate the aerial platform only on a firm, flat, level surface 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 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.
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.
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 adjacent
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 operate any of the aerial platform functions 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 or reaction could result if medical treatment
is not given immediately. Wear face and eye protection when working near the batteries.
4. 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,
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.
• 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.
ADanger
Do not operate the aerial platform from trucks, trailers, railway 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.
AB46JRT – 0260071 9
Hydraulic fluid escaping under pressure can have
enough force to inject fluid into the flesh. Serious
infection or reaction will result if medical treatment is
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.
Chapter 3 – Safety
Engine and Fuel Handling Precautions
Refer to the engine manufacturer’s Operator’s Manual for
complete information on safe engine operation, maintenance, and specifications.
ADanger
Engine exhaust contains carbon monoxide, a poisonous gas that is invisible and odorless. Breathing
engine exhaust fumes will cause death or serious
illness. Do not run the engine in an enclosed area or
indoors without adequate ventilation.
Be careful not to run the diesel fuel tank empty. Bleed the
fuel system if air enters the lines between the tank and
the injection pump.
Allow the engine to return to idle before shutting the
engine off.
Do not smoke or permit open flames while fueling or near
fueling operations.
Never remove the fuel cap or fill the fuel tank while the
engine is running or hot. Never allow fuel to spill on hot
machine components.
Maintain control of the fuel filler nozzle when filling the
tank. Spilled fuel is a potential fire hazard.
Do not overfill the fuel tank. Allow room for expansion.
Clean up spilled fuel immediately.
Tighten the fuel tank cap securely. If the fuel cap is lost,
replace it with an approved cap from Snorkel. Use of a
non-approved cap without proper venting may result in
pressurization of the tank.
Never use fuel for cleaning purposes.
For diesel engines, use the correct fuel grade for the
operating season.
ACaution
Engine coolant escaping under pressure may cause
serious burns. Shut the engine off and let it cool
before removing the radiator cap.
Let the engine and radiator cool before adding coolant.
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 or not legible.
10 AB46JRT – 0260071
Chapter 4 – Safety Devices
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
inspection.
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 personnel 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-position push button (refer to Figure 4.1).
Note
The lower controls override the upper controls. If the upper 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-position push button (refer to Figure 4.2).
Engine/Emergency
Power Switch
Figure 4.2 – Upper Controls
• Push the emergency stop button inward to disconnect
power to the upper control circuits.
Emergency
Stop Button
Emergency
Stop Button
Operation Switch
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.
Engine/Emergency
Power Switch
Ground
• Pull the button outward to restore power.
Emergency Power System
The emergency power system includes a back-up pump,
motor, and battery. Use this system to operate the boom
and turntable functions to lower the platform if the main
power system fails due to engine or pump failure.
ACaution
The emergency power system is for emergency lowering and stowing only. The length of time the pump
can be operated depends on the capacity of the battery. 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 battery.
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.
AB46JRT – 0260071 11
Chapter 4 – Safety Devices
Platform Foot Switch
Step down on the platform foot switch (refer to Figure
4.3) to activate the upper controls.
Top Rail
Gravity Gate
Platform Foot
Switch
The foot switch must be engaged and a control must be
moved to operate the boom, drive, and/or platform from
the upper controls.
Lanyard Anchors
Gravity Gate
Mid Rail
Toeboard
Figure 4.3 – Platform
Guardrails
The guardrails (refer to Figure 4.3) help protect personnel
from falling off the platform.
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.
Reset Button
Test Button
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.
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 provided 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 machine 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.
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 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.
Engine Protection Systems
A constant tone alarm will sound to warn against high
engine temperature or low oil pressure.
The engine will shut-down:
• if the operating temperature exceeds a preset level
• or if the oil pressure is too low for safe operation.
High Engine Temperature Alarm
If the coolant exceeds the engine operating temperature
an alarm will sound and the engine will shut off.
• Do not use the aerial platform for personal fall arrest
anchorage.
12 AB46JRT – 0260071
Do not restart the engine until the condition that caused
the overheating has been corrected.
Chapter 4 – Safety Devices
Low Oil Pressure Alarm
The low oil pressure alarm sounds when the engine oil
pressure is near the lower limit for safe engine operation.
If the alarm sounds, lower the platform to the ground and
then turn the engine off.
• If the engine oil pressure falls below a safe operating
value the engine will shut off.
• The engine can be restarted with low oil pressure,
but it will only run for a few seconds before it shuts
off again.
• Do not restart the engine until the condition that
caused the low oil pressure has been corrected.
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.
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 engine is running.
Horn Switch
Figure 4.5 – Upper Controls
AB46JRT – 0260071 13
Chapter 4 – Safety Devices
14 AB46JRT – 0260071
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 engine
operating time.
Hour Meter
Engine Oil
The engine oil level is measured with a dipstick. The dipstick is the only way to accurately determine the engine
oil level. The engine oil level should always be between
the add and full marks on the dipstick.
Hydraulic Fluid Filter Gauge
The fluid filter gauge (refer to Figure 5.3) is located on
the control valve behind the door on the right side of the
turntable.
Filter Gauge
Figure 5.3 – Hydraulic Fluid Filter Gauge
Figure 5.1 – Lower Controls
Fuel Gauge
The fuel gauge is located on top of the fuel tank. Access
the gauge by opening the door on the top, left rear of the
chassis (refer to Figure 5.2). Read the fuel level at the
line in the clear plastic window. The gauge indicates the
fuel tank level in fractions of a full tank.
Fuel 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.
Hydraulic Fluid Level Sight Gauge
A sight gauge on the end of the reservoir displays the
level of the hydraulic fluid (refer to Figure 5.4).
Fluid Sight Gauge
Figure 5.4 – Hydraulic Fluid Gauge
Remove the engine cover and check the fluid level with
Figure 5.2 – Fuel Tank
Note
Do not run a diesel fuel tank empty. Air in the fuel line
makes the engine hard to start.
AB46JRT – 0260071 15
the aerial platform in the stowed position, booms completely down and retracted. Otherwise, the cylinders act
as large reservoirs for hydraulic fluid making the level
appear too low. The fluid should be visible in the sight
gauge.
Chapter 5 – Gauges and Displays
16 AB46JRT – 0260071
Chapter 6 – Controls
ADanger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components, buildings, structures,
or other obstacles. Make sure all personnel stand
clear while operating the aerial platform.
• Controls to position the platform are located on the
lower control panel on the turntable and on the upper
control panel in the platform.
• Controls to drive the aerial platform are located on
the upper control panel only.
Battery Disconnect Switch
The battery disconnect is located at the left rear of the
chassis (refer to Figure 6.1).
Battery Disconnect Switch
Lower Controls
The lower controls (refer to Figure 6.2) are located on the
left side of the turntable. Boom and platform functions can
be operated from the lower controls. The following are
located on the lower control panel:
• Preheat button
• Start switch
• Emergency stop button
• Controls selector switch
• Ground operation switch
• Rotation switch
• Riser switch
• Boom elevation switch
• Boom extension switch
• Jib articulation switch
• Platform level switch
• Platform rotation switch
• Engine/Emergency power switch
• Hydraulic system warm-up switch (option)
Preheat Button
The preheat button (refer to Figure 6.2) is a two-position,
black push button. This button operates the glow plugs
to aid in starting the engine when the start switch is in
the on position.
Figure 6.1 – Battery Disconnect Switch
The battery disconnect removes electrical power from all
electrically controlled functions when in the off position.
• Place the switch in the on position to electrically connect the battery to the electrical system.
ACaution
Only authorized personnel should operate the aerial
platform. Unqualified personnel may cause injury
to coworkers or property damage. Lock the battery
disconnect switch in the off position before leaving
the aerial platform unattended.
• Lock the battery disconnect switch in the off position
to prevent unauthorized use of the aerial platform.
• When the engine is warmed up or the ambient temperature is above 50°F (10°C), it is not necessary to
operate the glow plugs before starting the engine.
• When the ambient temperature range is 50°F (10°C)
to 23°F (-5°C), press and hold the preheat button for
five seconds before starting the engine.
• When the ambient temperature is below 23°F (-5°C),
press and hold the preheat button for ten seconds
before starting the engine.
Start Switch
The start switch (refer to Figure 6.2) works like an automobile ignition switch.
• Hold the switch in the start position until the engine
starts, then release it to on.
• If the engine dies, the switch must be turned to off
before it can be turned back to start.
An alarm sounds, when the switch is turned on, to warn
others that the machine engine is being started.
Note
On some machines it may be necessary to pause about
three seconds in the on position before going to start so
the starter can engage.
If the platform is to stay in a particular position for a long
time, turn the start switch to off to shut off the engine and
save fuel.
AB46JRT – 0260071 17
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