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.

Chapter 3 – Safety
S2770RT IS – 0102094 7
Tip-Over and Falling Hazards
Operate the aerial platform only on a rm, at, level sur-
face capable of withstanding all load forces imposed by
the aerial platform in all operating conditions. Refer to
the General Specications chart for the maximum wheel
load and ground pressure. 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 ac-
cident. 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.
On scissor lifts, personal fall protection is not required by
ANSI, Federal OSHA, nor Snorkel. However, fall restraint
might be required by work regulations. If so, the user is
responsible for tness and method of use.
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 anchor-
age 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.
3. Use the platform entrance, do not climb over or
through the guardrails.
Do not operate the aerial platform in windy or gusty condi-
tions. Do not add anything to the aerial platform that will
increase the wind loading such as billboards, banners,
ags, 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 nor the platform-
extension capacity as indicated on the platform rating
placard on the platform. Do not carry loads that extend
beyond the platform guardrails without prior written con-
sent from Snorkel.
Do not operate the aerial platform from trucks, trailers, rail-
way cars, 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.
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, hoses, etc.,
from becoming caught in or on the aerial platform.
yIf the platform or elevating assembly becomes caught
on an adjacent structure or other obstacle and is
prevented from normal motion, reverse the control to
free the platform.
yIf control reversal does not free the platform, evacuate
the platform before attempting to free it.
Hydraulic System
The hydraulic system contains hoses with hydraulic uid
under pressure.
ADanger
Hydraulic uid escaping under pressure can have
enough force to inject uid into the esh. Serious
infection or reaction will result if medical treatment is
not given immediately. In case of injury by escaping
hydraulic uid, seek medical attention at once.
Do not place your hand or any part of your body in front
of escaping hydraulic uid. Use a piece of cardboard or
wood to search for hydraulic leaks.
Engine and Fuel Handling Precautions
Refer to the engine manufacturer’s Operator’s Manual for
complete information on safe engine operation, mainte-
nance, and specications.
ADanger
Engine exhaust contains carbon monoxide, a poi-
sonous 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 ames while fueling or near
fueling operations.
Never remove the fuel cap or ll the fuel tank while the
engine is running or hot. Never allow fuel to spill on hot
machine components.
Maintain control of the fuel ller nozzle when lling the
tank. Spilled fuel is a potential re hazard.
Do not overll the fuel tank. Allow room for expansion.

Chapter 3 – Safety
8 S2770RT IS – 0102094
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.
Use the correct fuel grade for the operating season.
Placards and Decals
The aerial platform is equipped with placards and decals
that provide instruction for operation and accident preven-
tion. Do not operate the aerial platform if any placards or
decals are missing, damaged, or illegible.

S2770RT IS – 0102094 9
Chapter 4 – Safety Devices
This aerial work platform is manufactured with safety
devices, placards, and decals to reduce the likelihood
of an accident.
yFor the safety of all personnel, do not disable, modify,
or ignore any safety device.
ySafety 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 qualied maintenance person-
nel can make repairs.
Emergency Stop Controls
There is an emergency stop control at the lower and
upper controls.
At the lower controls, the emergency stop is a two-posi-
tion red push button (refer to Figure 4.1).
Figure 4.1 – Lower Controls
Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged, the lower
controls can still be used to operate the aerial platform.
yPush the emergency stop button inward to disconnect
power to all control circuits.
yPull the button outward to restore power.
At the upper controls, the emergency stop is a two-posi-
tion red push button (refer to Figure 4.2).
Figure 4.2 – Upper Controls
yPush the emergency stop button inward to disconnect
power to all the control circuits.
yPull the button outward to restore power.
Manual Emergency Lowering Pump
The manual emergency lowering pump may be used to
lower the platform and to release the brakes if the engine
will not start. The pump (refer to Figure 4.3) is behind the
cowling door on the right side of the chassis.
Figure 4.3 – Manual Emergency Lowering Pump
After selecting either the scissor lower or brake release
valve, the hand pump may be used for emergency op-
eration.
Ground Operation Button
The ground operation button (refer to Figure 4.1) prevents
platform movement if a control button on the lower control
panel is accidentally pressed.
Press and hold the button to operate the machine from
the lower controls.
Pump
Main Control
Valve Assembly
Brake
Release Knob
Scissor
Lower Knob
Emergency Stop Button
Ground Operation Button
Emergency
Stop Button

Chapter 4 – Safety Devices
10 S2770RT IS – 0102094
Guardrails
The guardrails (refer to Figure 4.6) help protect personnel
from falling off the platform.
The guardrail system includes:
yA top rail
yA mid rail
yAn entry gate
yToeboards around the sides of the platform.
Figure 4.6 – Platform
The gates close automatically after entering or exiting
the platform. The gate is part of the guardrail system and
must be securely fastened after entering the platform.
Lanyard Anchors
Four lanyard anchors for fall restraint anchorage are
provided on the oor of the platform (refer to Figure 4.7).
Figure 4.7 – Platform Floor
yIf local work rules require the use of a fall restraint
device, properly connect it to a lanyard anchor before
raising the platform.
yAttach only one fall restraint device to each lanyard
anchor.
Outriggers
Four outriggers, one on each corner of the machine are
used to level the chassis before raising the platform. The
machine should not be driven unless the outriggers are
completely raised.
Bubble Levels
Bubble levels (refer to Figure 4.4) are located on the
right front and left rear of the chassis. When the bubbles
are centered, the chassis is level and the platform can
safely be raised.
Figure 4.4 – Bubble Level
Platform Foot Valve
The platform foot valve is on the platform oor beneath
the upper controls. Stepping down on the platform foot
valve (refer to Figure 4.5) activates the upper controls.
Figure 4.5 – Platform Foot Valve
The foot valve must be engaged and a control must be
moved to operate the scissor and drive functions from
the upper controls.
Tilt Alarm
The tilt alarm sounds when the platform is elevated out
of the rest and the machine is not level.
Note
While the alarm is sounding, the drive and platform func-
tions will not operate.
Platform Foot
Valve
Toeboard
Swinging
Gate
Top Rail
Mid Rail
Lanyard Anchor

Chapter 4 – Safety Devices
S2770RT IS – 0102094 11
yDo not use the lanyard anchors for personal fall arrest
anchorage.
Note
The lanyard anchors are not designed for lifting or tying
the machine down.
Horn Button
The horn button may be used to warn personnel on the
ground. The horn button is located on the left side of the
upper control panel.
Safety Prop
The safety prop (refer to Figure 4.8) 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.
Figure 4.8 – Safety Prop

Chapter 4 – Safety Devices
12 S2770RT IS – 0102094

S2770RT IS – 0102094 13
The aerial platform is equipped with several gauges to
monitor the condition of the machine before and during
operation.
Fuel
The fuel tank is translucent. The amount of fuel in the
tank can be gauged by opening the door on the front of
the machine (refer to Figure 5.1) and looking at the tank.
Figure 5.1 – Front of Chassis
Note
Do not run a diesel fuel tank empty. Air in the fuel line
makes the engine hard to start.
Engine Oil
The engine oil level is measured with a dipstick. The dip-
stick 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 uid lter gauge (refer to Figure 5.2) is located on the
return line lter on the left side of the reservoir. The res-
ervoir is behind the door on the left side of the turntable.
yDuring high pump ow situations, the gauge indicates
the condition of the lter.
yWhen the needle on the gauge is in the red zone, its
time to change the lter.
Figure 5.2 – Hydraulic Fluid Filter Gauge
Hydraulic Fluid Level Gauge
The hydraulic uid level gauge is on the front of the
hydraulic oil tank (refer to Figure 5.3) located behind the
doors on the left side of the chassis.
Figure 5.3 – Hydraulic Tank
Only read the uid level when the scissor structure is
completely lowered. Otherwise, the lift cylinders become
large reservoirs for hydraulic oil and the oil level in the
tank will be low. The uid should be between the Full
and Add lines.
Bubble Levels
Bubble levels (refer to Figure 5.4) are located on the
right front and left rear of the chassis. When the bubbles
are centered, the chassis is level and the platform can
safely be raised.
Figure 5.4 – Bubble Level
Chapter 5 – Gauges and Displays
Fuel Level

Chapter 5 – Gauges and Displays
14 S2770RT IS – 0102094

S2770RT IS – 0102094 15
Figure 6.2 – Lower Controls
Emergency Stop Button
The emergency stop is a two-position, red push button.
yPush the button inward to disconnect power to all
control circuits.
yPull the button outward to restore power.
Control Selector
Use the control selector to select between lower control
and upper control operation.
yPlace the arrow in the upper control position to
operate the aerial platform from the upper controls.
yPlace the arrow in the lower control position to operate
the aerial platform from the lower controls.
Ground Operation Button
The ground operation button must be pressed when
operating the platform raise or lower buttons from the
lower controls. The engine speed increases when the
button is held inward.
yHold the button inward continually to operate the
platform raise or lower buttons from the lower controls.
Platform Raise Button
The platform raise button is used to raise the platform.
yTo raise the platform, press and hold the ground op-
eration button and the platform raise button. Release
the buttons when the desired height is reached.
Platform Lower Button
The platform lower button is used to lower the platform.
yTo lower the platform, press and hold the ground op-
eration button and the platform lower button. Release
the buttons when the desired height is reached.
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.
yControls to position the platform are located on the
lower control panel on the chassis and on the upper
control panel in the platform.
yControls to drive the aerial platform are located on the
upper control panel only.
Outrigger Controls
The outrigger controls (refer to Figure 6.1) are located on
the right side of the chassis. Each handle corresponds to
one of the outriggers.
Figure 6.1 – Outrigger Controls
yHold the enable handle downward to activate the
outrigger controls.
yHold an outrigger handle downward to lower the cor-
responding outrigger leg.
yHold an outrigger handle upward to raise the corre-
sponding outrigger leg.
Lower Controls
The lower controls (refer to Figure 6.2) are located on
the right side of the chassis. Only platform functions can
be operated from the lower controls. The following are
located on the lower control panel:
yEmergency stop button
yControl selector
yGround operation button
yPlatform raise button
yPlatform lower button
0102102
LEFT
REAR
RIGHT
REAR
LEFT
FRONT
RIGHT
FRONT
ENABLE
Emergency Stop Button
Ground Operation Button
Control Selector
Platform
Raise
Button
Platform
Lower
Button

Chapter 6 – Controls
16 S2770RT IS – 0102094
Upper Controls
The upper controls (refer to Figure 6.3) are located on the
control panel at the platform. Scissor, platform, and drive
functions can be operated from the upper controls. The
following controls are located on the upper control panel.
yEmergency stop button
yLift/drive handle
ySteer handle
yDrive range handle
yJoystick
yHorn
Figure 6.3 – Upper Control Panel
Emergency Stop Button
The emergency stop is a two-position, red push button
on the top of the upper control panel (refer to Figure 6.3).
Push the button inward to disconnect power to all control
circuits at the upper controls. Pull the button outward to
restore power.
Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged the lower
controls can still be used to operate the aerial platform.
Push the emergency stop button inward when the upper
controls are not in use to protect against unintentional
operation.
Lift/Drive Handle
Use the lift/drive handle to select between platform raise/
lower and machine drive operation.
yPlace the handle in the platform position to oper-
ate the aerial platform raise and lower functions.
yPlace the handle in the drive position to operate the
machine drive and steer functions.
Note
The platform may either be raised or lowered or driven.
Raise and lower function and drive functions cannot be
operated simultaneously.
Steer Handle
The steer handle is used to adjust the direction of the
steer wheels.
yHold the steer handle in the left position to steer to
the left.
yHold the steer handle in the right position to steer to
the right.
Note
The steering wheels are not self-centering. Set the steer-
ing wheels straight ahead after completing a turn.
Drive Speed Handle
The drive range handle has two positions to select drive
wheel operation when the platform is in the stowed po-
sition.
High Speed Drive – Rabbit
The high speed drive position is used to set the drive
speed to high while the platform is in the stowed position.
yPlace the handle in the Rabbit position to double the
top speed of the machine.
yTo drive the machine forward at high speed, place the
handle in the Rabbit position and push the joystick
forward, the direction of the white arrow.
yTo drive the machine in reverse at high speed, place
the handle in the Rabbit position and pull the joystick
backward, the direction of the black arrow.
Low Speed Drive – Turtle
The low speed drive position is used to set the drive
speed to low.
yPlace the handle in Turtle position when working in
close quarters, climbing grades, or when unfamiliar
with the machine operation.
yTo drive the machine forward at low speed, place the
handle in the Turtle position and push the joystick
forward, the direction of the white arrow.
yTo drive the machine in reverse at low speed, place
the handle in the Turtle position and pull the joystick
backward, the direction of the black arrow.
Note
The drive range operates in Lo when the platform is out
of the stowed position, regardless of the drive speed
button selected.
Joystick
The joystick (refer to Figure 6.3) is used to either drive
the aerial platform or to raise and lower the platform after
selecting the appropriate function.
yPlace the lift/drive handle in the drive position to use
the joystick to drive the aerial platform.
Emergency
Stop Button
Lift/Drive
Handle
Steer
Handle
Drive
Speed
Handle
Joystick