Snorkel S2770RT User manual

November 2017
Part Number 0102094
MANUAL
OPERATOR’S
Model S2770RT IS – Intrinsically Safe

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 de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, scissor 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
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.

S2770RT IS – 0102094
Table of Contents
Electrical Danger ............................ Inside Front Cover
California Proposition 65 ................ Inside Front Cover
Chapter 1 – Introduction
Aerial Platform Features.............................................1
Operator’s Manual......................................................1
Safety Alerts ...............................................................1
Operation....................................................................1
Maintenance...............................................................2
Manual of Responsibilities..........................................2
Additional Information.................................................2
Chapter 2 – Specications
Component Identication............................................3
General Specications................................................4
Aerial Platform.........................................................4
Platform...................................................................4
Function Speed .......................................................4
Drive System...........................................................4
Tires ........................................................................4
Hydraulic System ....................................................4
Ambient Air Temperature Operating Range ............4
Maximum Wind Speed ............................................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
Hydraulic System........................................................7
Engine and Fuel Handling Precautions ......................7
Placards and Decals...................................................8
Chapter 4 – Safety Devices
Emergency Stop Controls...........................................9
Manual Emergency Lowering Pump...........................9
Ground Operation Button ...........................................9
Outriggers.................................................................10
Bubble Levels...........................................................10
Platform Foot Valve ..................................................10
Tilt Alarm...................................................................10
Guardrails.................................................................10
Lanyard Anchors.......................................................10
Horn Button .............................................................. 11
Safety Prop............................................................... 11
Chapter 5 – Gauges and Displays
Fuel...........................................................................13
Engine Oil.................................................................13
Hydraulic Fluid Filter Gauge.....................................13
Hydraulic Fluid Level Gauge ....................................13
Bubble Levels...........................................................13
Chapter 6 – Controls
Outrigger Controls ....................................................15
Lower Controls .........................................................15
Emergency Stop Button ........................................15
Control Selector ....................................................15
Ground Operation Button ......................................15
Platform Raise Button ...........................................15
Platform Lower Button...........................................15
Upper Controls .........................................................16
Emergency Stop Button ........................................16
Lift/Drive Handle....................................................16
Steer Handle .........................................................16
Drive Speed Handle ..............................................16
High Speed Drive – Rabbit....................................16
Low Speed Drive – Turtle......................................16
Joystick .................................................................16
Horn Button ...........................................................17
Platform Foot Valve ..................................................17
Chapter 7 – Prestart Inspection
Operator’s Manual....................................................19
Engine ......................................................................19
Oil Level ................................................................19
Air Intake ...............................................................19
Fuel Tank...............................................................19
Fuel Line ...............................................................20
Hydraulic System......................................................20
Fluid Level.............................................................20
Fluid Filter .............................................................20
Hoses, Tubes, and Fittings....................................20
Tires and Wheels......................................................21
Outrigger Controls ....................................................21
Bubble Levels...........................................................21
Lower Control Station...............................................21
Operating Controls ................................................21
Emergency Stop....................................................22
Manual Emergency Lowering Pump.........................22
Structures .................................................................22
Weldments ............................................................22
Rollers and Slide Blocks .......................................22
Fasteners ..............................................................23
Upper Control Station...............................................23
Guardrail System ..................................................23
Lanyard Anchors.......................................................23
Platform Extension Deck ..........................................24
Operating Controls ................................................24
Emergency Stop....................................................25
Horn Button ...........................................................25
Placards and Decals.................................................25
Prestart Inspection Checklist....................................29
Chapter 8 – Operation
Hydraulic System Cold Weather Warm-Up .............31
Manually Warming The Hydraulic System ............31
Preparing for Operation............................................31
Outriggers.................................................................31
Operating with Outriggers Lowered on Slopes .....32
Lower Controls .........................................................33

Table of Contents
S2770RT IS – 0102094
Upper Controls .........................................................33
Platform ....................................................................34
Raising and Lowering............................................34
Driving and Steering.................................................34
Drive Speeds ........................................................35
Fold Down Guardrails...............................................35
Platform Extension Deck ..........................................36
Chapter 9 – Stowing and Transporting
Stowing.....................................................................37
Transporting .............................................................37
Driving ...................................................................37
Lifting With a Forklift..............................................37
Winching ...............................................................38
Hoisting .................................................................38
Securing for Transport...........................................39
Chapter 10 – Emergency Operation
Manual Emergency Lowering Pump.........................41
Chapter 11 – Troubleshooting
Troubleshooting Chart ..............................................43
Appendix A – Glossary
Limited Warranty

S2770RT IS – 0102094 1
Chapter 1 – Introduction
Aerial Platform Features
The aerial platform is a self-propelled work platform that
has been designed to raise personnel, their tools, and
material to the workstation. The platform is raised and
lowered with hydraulic cylinders. A hydraulic motor on
each wheel provides power to move the aerial platform.
The standard machine includes the following features:
yProportional controls
yMulti-position extension deck
yLanyard anchors
ySwinging entry gate
yFour wheel drive
yEasy access side trays for engine and hydraulics
yLockable hinged covers
yIndependently operated hydraulic outriggers
yHorn
yDrivable at full height
yTie-down/lifting lugs
yForklift pockets
• Manual emergency lowering pump
yFive year limited warranty
The aerial platform has been manufactured, when ap-
plicable, to conform to all applicable requirements of the
following organizations:
yOccupational Safety and Health Administration
(OSHA)
yAmerican National Standards Institute (ANSI)
Operator’s Manual
This manual provides information for safe and proper
operation of the aerial platform. 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.
Danger
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.
Warning
Indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
Caution
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 speci-
cations and industry standards. However, any personnel
lifting aerial platform can be potentially dangerous in the
hands of untrained or careless operators.
Warning
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 quali-
ed person.
yBecome procient in knowledge and actual operation
before using the aerial platform on the job.
yThe operator must be trained and authorized to per-
form any functions of the aerial platform.
yOperation of the aerial platform must be within the
scope of the machine speci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.

Chapter 1 – Introduction
2 S2770RT IS – 0102094
Maintenance
Every person who maintains, inspects, tests, or repairs
the aerial platform must be qualied 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 qualied to work on
the aerial platform.
Do not modify this aerial platform without prior written
consent of the Snorkel Engineering Department. Modi-
cation 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 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 A92.6–2006 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.snorkellifts.com

S2770RT IS – 0102094 3
Chapter 2 – Specications
Component Identication
Toeboards
Scissors
Structure
Right Side
Extension
Deck
Front
Top Rail
Rear
Left Side
Entry
Steps
Lower
Controls
Operator’s
Manual
Chassis
Upper
Controls
Front Rear
Entry
Gate
Tie-Down/Lifting
Lugs
Engine Compartment
Engine • Hydraulic Pump
Hydraulic Compartment
Hydraulic Reservoir • Hydraulic Fluid Filter
Emergency Lowering Pump
Mid Rail
Tie-Down/Lifting
Lugs
Platform
Outriggers
Steer
Wheels
Serial Number Placard
Serial Number
Model Number
Forklift Pockets
Both Sides
Fuel Tank

Chapter 2 – Specications
4 S2770RT IS – 0102094
General Specications
Aerial Platform
Working height 33′ 9″ (10.28 m)
Maximum platform height 27′ 2″ (8.28 m)
Maximum outreach – deck extended 4′ (1.2 m)
Turning radius
Inside 9′ 3″ (2.83 m)
Outside 15′ 1″ (4.6 m)
Ground clearance 14.6″ (37 cm)
Maximum wheel load 3,820 lbs (1,733 kg)
Empty vehicle weight (EVW)
Approximate 7,600 lbs (3,455 kg)
Stowed width 5′ 9″(1.77 m)
Stowed length 11′ (3.36 m)
Stowed height
Rails up 8′ 2″ (2.5 m)
Rails down 5′ 8″ (1.7 m)
Platform
Dimensions
Deck retracted 8′ 11″x 5′ 5″ (2.73 m x 1.65 m)
Deck extended 12′ 8″x 5′ 5″ (3.86 m x 1.65 m)
Guardrail height 45″ (1.14 m)
Toeboard height 6″(152 mm)
Rated work load
Deck retracted 1,275 lbs (580 kg)
Deck extended
Main deck 1,015 lbs (460 kg)
Extension 265 lbs (120 kg)
Maximum number of occupants 4 people
Function Speed
Platform raise 26 seconds
Platform lower 35 seconds
Drive speed maximum
Elevated 0.64 mph (1 km/h)
Stowed 2.8 mph (4.5 km/h)
Drive System
Standard Four wheel drive
Gradeability – theoretical 30%
Maximum drive height 27′ 2″ (8.28 m)
Tires
Air lled 26 x 12.00 - 16.5 NHs
Hydraulic System
Maximum pressure 3,300 psi (22,750 kPa)
Reservoir capacity 13 US gal (50 l)
Maximum operating temperature 180°F (82°C)
Hydraulic uid recommended
Above 10°F (-13°C) ISO VG32
Below 10°F (-13°C) ISO VG15
Fuel Tank Capacity
Diesel 11 US gal (41.5 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)

S2770RT IS – 0102094 5
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.
yNever disable, modify, or ignore any safety device.
ySafety 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 sus-
pected, 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 in-
adequate clearance from, an energized conductor.
Do not go closer than the minimum safe approach
distance as dened by ANSI.
ANSI publications de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.
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
6 S2770RT IS – 0102094
Prestart Inspection
Perform a prestart inspection before each shift as de-
scribed 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.
yThe welding ground clamp must be attached to the
same structure that is being welded.
yElectrical current 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:
yDebris
ySlopes
yDrop-offs or holes
yBumps and oor obstructions
yOverhead obstructions
yUnauthorized persons
yHigh voltage conductors
yWind and weather conditions
yInadequate surface and support to withstand load
forces applied by the aerial platform in all operating
congurations
Before using the aerial platform in any hazardous (clas-
si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 trafc-ow patterns and
obey the agmen, road signs and signals.
While operating the aerial platform, a good safety prac-
tice is to have qualied personnel in the immediate work
area to:
yHelp in case of an emergency
yOperate emergency controls as required
yWatch for loss of control by platform operator
yWarn the operator of any obstructions or hazards that
may not be obvious to them
yWatch for soft terrain, sloping surfaces, drop-offs, etc.
where stability could be jeopardized
yWatch for bystanders and never allow anyone to be
under, or to reach through the elevating assembly
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 sufcient
clearance around the machine before moving the
chassis or platform. Allow sufcient room and time
to stop movement to avoid contact with structures
or other hazards.
Always look in the direction of movement.
yDrive with care and at speeds compatible with the
work place conditions.
yUse caution when driving over rough ground, on
slopes and when turning.
yDo 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
The potential for an accident increases when operat-
ing an 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. Quali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.
Make sure the area below the platform is free of personnel
before lowering.
Make sure the area below the platform is free of person-
nel before lowering.
Keep both feet positioned rmly on the platform oor.
yOperate the controls slowly and deliberately to avoid
jerky and erratic operation.
yAlways 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.