Snorkel S3970BE User manual

OPERATION
MANUAL
Part Number 13865-1
March 2014 (Rev A)
Version IV
Serial Numbers:
S2770RT-07-000064,
S3370RT-07-000061,
S3970RT-07-000029 and after
Diesel
Gasoline
LPG
Bi-Energy 24V DC

page - iRev A S3970RT, S3370RT & S2770RT – 13865-1
Electrical Hazard
nElectrical Hazard Warning
S3970RT, S3370RT & S2770RT ELEVATING WORK PLATFORMS ARE
NOT ELECTRICALLY INSULATED.
If the platform, scissors arm assembly, or any other conductive part of the machine contacts a high-voltage
electrical conductor, the result can be SERIOUS INJURY or DEATH for persons on or near the machine.
GO NO CLOSER THAN THE MINIMUM SAFE APPROACH DISTANCES
(M.S.A.D) - SEE BELOW.
Be sure to allow for sag and sway in the wires and the work platform.
If the machine comes in contact with a live electrical conductor, the entire machine can be charged.
If that happens, you should remain on the machine and not contact any other structure or object within
reach. That includes the ground, adjacent buildings, poles, and any object not a part of the machine.
Such contact could make your body a conductor to the other object creating an electrical shock hazard re-
sulting in SERIOUS INJURY or DEATH.
DO NOT attempt to enter or leave the machine until you are sure the electricity has been turned off.
If the machine is in contact with a live conductor, the platform operator MUST warn others on the ground in
the vicinity of the machine to STAY AWAY from the machine, since their bodies can also form a path for
electricity to ground thus creating an electrical shock hazard with possible ELECTROCUTION and
DEATH.
DO NOT attempt to operate the machine ground controls when the platform, scissors arm assembly, or
any other conducting part of the machine is in contact with electrical wires or if there is an immediate dan-
ger of such contact.
Regard all conductors as energised.
Personnel working on or near the machine must be continuously aware of electrical hazards, recognizing
that SERIOUS INJURY or DEATH can result if contact with an electrical wire does occur.
It is the OPERATOR'S responsibilty to ensure M.S.A.D., (subject to local regulations and laws),
are known and adhered to.
DANGER
IMPORTANT - M.S.A.D.

Introduction
The most important chapter in this manual is the
safety chapter - Chapter 1. Take time, now, to study
it closely.
The information in Chapter 1, might save your life,
prevent serious injury, or damage to property or the
S3970RT / S3370RT / S2770RT.
This introduction also contains important informa-
tion concerning the responsibilities of the owner of
the machine.
nStandard S3970RT / S3370RT /
S2770RT Version III
The standard S3970RT / S3370RT / S2770RT in-
cludes the following features:
lFully proportional one (1) handed joy stick
control
lReliable diesel engine
lLarge 1200mm multi position extension deck
l30% / 35% gradeability
l4 wheel drive
lHour meter
lTemperature & ammeter gauges
lEasy access side trays for engine &
hydraulics
lLockable hinged covers
lIndependently operated hydraulic stabilisers
with auto level
lSwinging gate
lIndependent articulating rear axles
lForklift pockets
lLifting lugs and tie down rings
lFlashing light
nOptions
The following options are available for the
S3970RT / S3370RT / S2770RT:
lNo stabilisers
lNon-marking tyres
l110/240V power to platform
lRCD/ELCB Outlet
lAlternative power options
mGasoline engine
mLPG engine
mCombination LPG/Gasoline engine
mBi-Energy 24V DC / Diesel engine
nOperation Manual
This manual provides information for safe and
proper operation of the aerial platform. Read and
understand the information in this Operator’s man-
ual before operating this machine on a job site.
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 cor-
rect manual will be supplied.
All information in this manual is based on the latest
product information at the time of publication. Snor-
kel reserves the right to make product changes at
any time without obligation.
nPhotographs
Photographs are taken to represent the machine
and its component parts as clearly as possible.
However, there may be minor differences between
the photographs and your machine. This repre-
sents individual customer preferences and Snor-
kel's on-going committment to product
development.
nSafety Alerts
A safety alert symbol is used throughout this man-
ual to indicate danger, warning and caution instruc-
tions. Follow these instructions to reduce the
likelihood of personal injury, property damage or
damage to the machine.
The terms danger, warning, and caution indicate
varying degrees of personal injury or property dam-
age that can result if the instruction is not followed.
Denotes an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
Denotes a potentially hazardous situation
which, if not avoided, could result in death or
serious injury.
Denotes 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 or action which may result in
damage to the S3970RT / S3370RT /
S2770RT.
S3970RT, S3370RT & S2770RT – 13865-1 Rev A page - ii
DANGER
WARNING
CAUTION

Denotes important information pertaining to
settings, capacities, conditions, which
could, if ignored lead to machine damage or
future hazardous situations.
It is also used to alert the reader to pay
careful attention to a particular passage of
text in the manual.
Notes
Notes are used to provide special information or
helpful hints to assist in aerial platform operation,
but do not indicate a hazardous situation.
nOperation
The S3970RT / S3370RT / S2770RT aerial plat-
form has built in safety features and has been fac-
tory tested for compliance with Snorkel
specifications and industry standards. However,
any personnel lifting device can be potentially dan-
gerous in the hands of untrained or careless
operators.
Training is vitally important and must be performed
under the direction of a QUALIFIED person. You
must display proficiency in knowledge and actual
operation of the machine before using it on a job
site.
Before operation of the machine you must read and
understand the operating instructions in this man-
ual as well as the decals, warnings, and instruc-
tions on the machine itself.
Before operating the machine you must be
authorised by the person in charge to do so and the
operation of the machine must be within the scope
of the machine specifications.
The potential for an accident increases when
the aerial platform is operated by personnel
who are not trained and authorised. Death or
serious injury can result from such
accidents.
Read and understand the information in this
manual and on the placards and decals on
the machine before operating the machine
on the job site.
nMaintenance
Every person who maintains, inspects, tests, or re-
pairs these machines, and every person supervis-
ing any of these functions, must be properly trained
and qualified to do so.
This Operators Manual provides a daily inspection
procedure that will help you keep your S3970RT /
S3370RT / S2770RT in good operating condition.
Do not perform other maintenance unless you are a
trained mechanic, qualified to work on the
S3970RT / S3370RT / S2770RT. Call qualified
maintenance personnel if you find problems or
malfunctions.
Do not modify this machine without written ap-
proval from the Engineering Department of Snor-
kel. Modification may void the warranty, adversely
affect stability, or affect the operational character-
istics of the S3970RT / S3370RT / S2770RT.
nResponsibilities of parties
It is imperative that all owners and users of the
S3970RT / S3370RT / S2770RT read, understand,
and conform to all applicable regulations. Ultimate
compliance to OSHA regulations is the
responsibility of the user and their employer.
It is imperative that all owners and users of
the S3970RT / S3370RT / S2770RT read,
understand, and conform to all applicable
regulations.
Ultimate compliance to OSHA regulations is the
responsibility of the user and their employer.
ANSI Standard A92.6 clearly identifies
requirements of all parties who might be
involved with Self-Propelled Elevating Work
Platforms.
AUSTRALIAN / NZ STANDARD 2550-10 also
identifies the requirements of all parties who
might be involved with Boom-Supported
Elevating Work Platforms.
Note - Standards
It is the responsibility of the owner to ensure that
the person operating the S3970RT / S3370RT /
S2770RT is provided with all the relevant
information relating to standards and codes of
practice applicable in their region.
❑In summary
lOnly trained and authorised operators should
be permitted to operate the equipment.
lAll manufacturers operating instructions and
safety rules and all employers safety rules
and all OSHA and other government safety
rules should be strictly adhered to.
page - iii Rev A S3970RT, S3370RT & S2770RT – 13865-1
Introduction
WARNING
IMPORTANT
IMPORTANT
IMPORTANT

lRepairs and adjustments should be made
only by qualified and trained maintenance
personnel.
lNo modification should be made to the
equipment without prior written consent of
the Snorkel Engineering Department.
lMake a pre-start inspection of the S3970RT /
S3370RT / S2770RT at the beginning of
each shift. A malfunctioning machine must
not be used.
lMake an inspection of the work place to
locate possible hazards before operating the
S3970RT / S3370RT / S2770RT.
nProduct Warranty
For full terms of your warranty policy refer to the
Repair Parts manual, or check with your Snorkel
distributor, or check the Snorkel website.
nAdditional information
For additional information, contact your local
dealer or Snorkel at:
Snorkel New Zealand,
PO Box 1041
Levin 5510
New Zealand
S3970RT, S3370RT & S2770RT – 13865-1 Rev A page - iv
Introduction

Table of Contents
Electrical Hazard
Electrical Hazard Warning ..................i
Introduction
Standard S3970RT / S3370RT / S2770RT
Version III ..............................ii
Options ................................ii
Operation Manual ........................ii
Photographs ............................ii
Safety Alerts ............................ii
Operation ..............................iii
Maintenance............................iii
Responsibilities of parties .................iii
Product Warranty ........................iv
Additional information ....................iv
1. Safety
Safe Operation ........................1-1
Electrocution Hazards ...................1-1
Pre-start Inspection .....................1-1
Work Place Inspection and Practices .......1-1
Operation.............................1-2
Tipover and Falling Hazards ..............1-2
General Safety Precautions ..............1-3
Hydraulic System Precautions ............1-3
Fire / Explosion Prevention ...............1-3
Engine and Fuel Handling Precautions......1-3
Batteries .............................1-4
Safety Decals and Placards ..............1-4
Safety Placards and Decals Location .......1-4
2. Safety Devices
Safety Device Information ................2-1
Emergency Stop Switches ...............2-1
At platform control box .................2-1
At ground control box ..................2-1
Alarms ...............................2-1
Lowering ............................2-1
High temperature .....................2-2
Low oil pressure ......................2-2
Alternator not charging .................2-2
Drive (reverse) .......................2-2
Drive (forward) .......................2-2
Load sensing system....................2-2
Level sensor .........................2-2
Primary Fall Restraint System.............2-2
Safety Prop ...........................2-3
Safety Control .........................2-3
Bubble Level ..........................2-3
Operator Horn ........................2-3
Stabilisers (Option) .....................2-4
Rough Terrain Scissor Interlock Tests ......2-4
Enable switch ........................2-4
RCD/ELCB AC Outlet (option) ............2-4
Flashing Light .........................2-5
Fall Restraint Lanyard Anchor Points
(option) ..............................2-5
3. Specifications
Specifications .........................3-1
General Specifications, Standard Machine
S3970RT .............................3-1
General Specifications, Standard Machine
S3370RT .............................3-2
General Specifications, Standard Machine
S2770RT .............................3-3
Engine Data...........................3-4
DF752 (Option) .......................3-4
D902 ...............................3-4
Machine Component Identification .........3-5
4. Gauges
EzCal LCD Display .....................4-1
Water................................4-1
Alternator.............................4-1
Oil Pressure...........................4-1
Hours................................4-1
Work time ...........................4-1
Total time ...........................4-1
Engine Oil ............................4-1
Hydraulic Oil Level .....................4-1
Bubble Level ........................4-2
5. Automatic Shut-offs and Circuit Breakers
Automatic Shut-offs ....................5-1
Level sensor .........................5-1
Engine temperature ...................5-1
Engine oil pressure ....................5-1
Platform height vs. drive speed...........5-1
Dynamic brakes ......................5-1
Alternator not charging .................5-1
Load sensing system ..................5-1
Stabilisers ..........................5-2
Fuses ...............................5-2
RCD / ELCB outlet (option)..............5-2
6. Controls
Controls ..............................6-1
Hydraulic Compartment..................6-1
Ground Control Box.....................6-1
Platform Control Box ....................6-2
7. Daily Inspection and Maintenance
Daily Inspection and Maintenance Table ....7-1
S3970RT, S3370RT & S2770RT – 13865-1 page - vi

Rough Terrain Scissor Interlock Tests ......7-2
Stabiliser locked out when platform
elevated test.........................7-2
Elevation locked out when axles not
stowed test..........................7-2
Elevation locked out when tilted test.......7-2
Fuel Level ............................7-3
Fuel Filter (diesel engines only) ..........7-3
Fuel Leaks............................7-3
Engine Oil ............................7-3
Engine Coolant ........................7-4
Radiator Cap ..........................7-4
Swinging Gate ........................7-4
Wiring Harnesses and Connectors .........7-4
Battery Terminals ......................7-5
Battery Fluid Level ....................7-5
Hydraulic Oil Tank ......................7-5
Hydraulic tank cap ....................7-5
Hydraulic oil level .....................7-5
Hydraulic Oil Leaks ....................7-5
Tires and Wheels ......................7-6
Bolts and Fasteners ....................7-6
Structural Damage & Welds ..............7-6
Primary Fall Restraint System.............7-7
Bubble Level ..........................7-7
Guides, rollers, and slides................7-7
Ground Controls .......................7-7
Flashing Light .........................7-8
Platform Controls.......................7-8
Emergency Lowering....................7-8
RCD / ELCB (Option) ...................7-9
Safety prop ...........................7-9
Fall Restraint Lanyard Anchor Points
(Option) .............................7-9
Non-Slip Tread Grip ....................7-9
Wrist Support..........................7-9
Operator Manual ......................7-10
Placards and Decals ...................7-12
Standard placards and decals ..........7-12
Inspection drawing ...................7-13
8. Operation
Operating Procedures ...................8-1
Control Stations........................8-1
Emergency Stopping ....................8-1
Operation Considerations ................8-1
Operating From The Ground Control
Box .................................8-2
Raising the platform ...................8-2
Operating From The Platform Control Box ...8-2
Driving ..............................8-4
Variable Maximum Drive Speed ..........8-4
Ramp Off............................8-4
Raising the Platform ...................8-5
Stabilisers ............................8-5
Operating The Stabilisers Manually ........8-6
To set the stabilisers ...................8-6
To raise the stabilisers: ................8-6
Operating The Auto Level System .........8-7
Setting the stabilisers automatically .......8-7
Raising the stabilisers automatically.......8-7
The Risks of Operating Scissor Lifts on
Outriggers on Ramps and Slopes ..........8-7
Extending The Multi-Position Platform ......8-8
9. Emergency Operation
Emergency Operation Procedures .........9-1
Emergency Stop .......................9-1
Emergency Bleed-Down .................9-1
Pushing / Towing.......................9-2
10. Stowing and Transporting
Stowing .............................10-1
To lock the machine:..................10-1
Transporting .........................10-1
Trailering ...........................10-1
Securing to a Transport Vehicle .........10-2
Towing ............................10-3
Lifting..............................10-3
Pushing ...........................10-3
Winching Procedure ..................10-3
Long Term Storage ....................10-3
11. Options
Bi-Energy Option ......................11-1
DC motor...........................11-1
DC motor operation...................11-1
Master battery isolater switches .........11-1
Batteries ...........................11-1
Battery charger ......................11-2
Batteries - General maintenance ........11-3
Batteries - Charging ..................11-3
Gasoline/LPG Fuel Option ..............11-3
Fuel Level ..........................11-3
LPG Tank Gauges & Fuel Level .........11-3
Operating From the Ground Control
Box ................................11-4
Operating From The Platform Control Box ..11-5
RCD / ELCB Outlet ....................11-6
Fall Restraint Lanyard Anchor Points
(option) .............................11-6
Electrical Outlet .......................11-7
Non-Marking Tyres ....................11-7
Alternative Power Options...............11-7
Stabilisers ...........................11-7
12. Fire Fighting and Chemical Containment
page - vii S3970RT, S3370RT & S2770RT – 13865-1
Table of Contents

Hazardous Components ................12-1
Antifreeze (UN 1993) .................12-1
Battery, Lead/Acid (UN 2794) ...........12-1
Diesel Fuel (NA 1993).................12-1
Foam In Tires .......................12-2
Gasoline (UN 1203) ..................12-2
Hydraulic Oil (UN 1270) ...............12-3
Liquefied Petroleum Gas (UN 1075)......12-3
Motor Oil (UN 1270) ..................12-3
13. Operator's Troubleshooting
Troubleshooting.......................13-1
Operator Troubleshooting Chart .........13-1
Appendix A. Glossary
S3970RT, S3370RT & S2770RT – 13865-1 page - viii
Table of Contents

1. Safety
nSafe Operation
Knowledge of the information in this manual, and
proper training, provide a basis for safely operating
the S3970RT / S3370RT / S2770RT. Know the lo-
cation of all the controls and how they operate to
act quickly and responsibly in an emergency.
Safety devices reduce the likelihood of an acci-
dent. Never disable, modify, or ignore any safety
device. Safety alerts in this manual indicate situa-
tions where accidents may occur.
If any malfunction, hazard or potentially unsafe
condition relating to capacity, intended use, or safe
operation is suspected, stop the operation of the
S3970RT / S3370RT / S2770RT and seek
assistance.
The operator bears ultimate responsibility for fol-
lowing all manufacturers instructions and warn-
ings, regulations and safety rules of their employer
and/or any country or regional law.
nElectrocution Hazards
The S3970RT / S3370RT / S2770RT is an all metal
aerial work platform and is not electrically insu-
lated. Do not operate it near electrical conductors.
Regard all conductors as being energised. Do not
operate outside during a thunderstorm.
nPre-start Inspection
At the start of each work shift, the S3970RT /
S3370RT / S2770RT shall be given a visual
inspection and function test. See the Daily
Inspection and Maintenance chapter , in this
manual for a list of items to inspect and test.
DO NOT operate the S3970RT / S3370RT /
S2770RT unless you are trained and
authorised, understand the operation
characteristics of the S3970RT / S3370RT /
S2770RT, and have inspected and tested all
functions to be sure they are in proper
working order.
nWork Place Inspection and Practices
Do not use the S3970RT / S3370RT / S2770RT as
a ground for welding. Ground to the work piece.
Before the S3970RT / S3370RT / S2770RT is
used, and during use, check the area in which the
S3970RT / S3370RT / S2770RT is to be used for
possible hazards such as, but not limited to:
lDrop-offs or holes.
lSide slopes.
lBumps and floor obstructions.
lDebris.
lOverhead obstructions and electrical
conductors.
lHazardous locations.
lInadequate surface and support to withstand
all load forces imposed by the aerial platform
in all operating configurations.
lWind and weather conditions.
lPresence of unauthorised persons.
lOther possible unsafe conditions.
Before the S3970RT / S3370RT / S2770RT is
used, determine the hazard classification of any
particular atmosphere or location according to
ANSI/NFPA 505-1987.
Any S3970RT / S3370RT / S2770RT operated in a
hazardous location must be approved and of the
type required by ANSI/NFPA 505-1987.
While operating the S3970RT / S3370RT /
S2770RT a recommended safety practice is to
have trained and qualified personnel in the immedi-
ate work area of the S3970RT / S3370RT /
S2770RT to:
lHelp in case of an emergency.
lOperate emergency controls as required.
lWatch for loss of control by platform
operator.
lWarn the operator of any obstructions or
hazards that may not be obvious to them.
lWatch for soft terrain, sloping surfaces,
drop-offs, etc., where stability could be
jeopardized.
lWatch for bystanders and never allow
anyone to be under, or to reach through the
booms while operating the aerial platform.
Pinch points may exist between moving
components. Death or serious injury can
result from becoming trapped between
components, buildings, structures, or other
obstacles. Make sure there is sufficient
clearance around the machine before
moving the chassis, booms, or platform.
Allow sufficient room and time to stop
movement to avoid contact with structures
or other hazards.
Keep ground personnel from under the platform
when the platform is raised.
S3970RT, S3370RT & S2770RT – 13865-1 Rev A page 1- 1
WARNING
DANGER

Secure all accessories, containers, tools, and
other materials in the platform to prevent them from
accidentally falling or being kicked off the platform.
Always look in the direction of travel. 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 stunt
driving while operating the S3970RT / S3370RT /
S2770RT.
Do not permit riders on the machine anyplace other
than on the platform.
Remove all loose objects stored in or on the ma-
chine, particularly in the platform. Remove all ob-
jects which do not belong in or on the machine.
Never steady the platform by positioning it against
another platform.
Do not operate an S3970RT / S3370RT / S2770RT
that is damaged or not functioning properly. Do not
use the S3970RT / S3370RT / S2770RT until the
machine has been repaired by a qualified mainte-
nance person.
Do not operate a S3970RT / S3370RT / S2770RT
that does not have all its decals and placards at-
tached and legible.
Watch for bystanders and never allow anyone to be
under, or to reach through, the machine and its
equipment while operating.
Use the recommended transport device when
loading the machine.
nOperation
ENSURE that you wear appropriate PPE while us-
ing the machine. The required PPE will vary de-
pending on the specific job. A risk and hazard
analysis must be performed by the operatorto un-
derstand what PPE will be required.
DO NOT operate the S3970RT / S3370RT /
S2770RT if you feel tired, sick, or if you are under
the influence of alcohol, prescription or illicit drugs.
If you encounter any suspected malfunction of the
aerial platform, or any hazard or potentially unsafe
condition relating to capacity, intended use, or safe
operation, cease operation immediately and seek
assistance from management.
Use three (3) points of support when getting on or
off the platform (two (2) hands and one (1) foot or a
similar set of points). Keep the platform clean.
Maintain a firm footing on the platform floor. Oper-
ate the controls slowly and deliberately to avoid
jerky and erratic operation. Always stop the con-
trols in neutral before going in the opposite
direction.
Do not dismount while the platform is in motion or
jump off the machine.
Do not start until all personnel are clearly away
from the machine.
Never cover the floor grating or otherwise obstruct
your view below. Make sure the area below the
platform is free of personnel before lowering.
Access and egress from the platform is to be at-
tempted ONLY when the platform is fully lowered.
DO NOT overload the platform by lifting additional
equipment from an elevated platform.
The S3970RT / S3370RT / S2770RT is not in-
tended for on-road use. The S3970RT / S3370RT /
S2770RT may be used on the road if applicable
control measures are in place and local regulations
are adhered to.
Operator's of the S3970RT / S3370RT / S2770RT
MUST NOT push or pull objects with the platform.
nTipover and Falling Hazards
Operate the S3970RT / S3370RT / S2770RT only
on a firm, flat, level surface capable of withstanding
all load forces imposed by the S3970RT / S3370RT
/ S2770RT in all operating conditions.
The S3970RT / S3370RT / S2770RT can tip
over if it becomes unstable. Death or serious
injury can result from a tip-over accident. Do
not drive or position the S3970RT / S3370RT /
S2770RT platform for elevated use near any
drop-off, hole, slope, soft or uneven ground,
or other tip-over hazard.
Do not operate the S3970RT / S3370RT /
S2770RT from a position on trucks, trailers, railway
cars, floating vessels, scaffolds, or similar equip-
ment unless the application is approved in writing
by Snorkel.
Care shall be taken to prevent rope, electric cords,
and hoses, etc., from becoming entangled in the
aerial platform. If the platform or elevating assem-
bly becomes caught, snagged, or otherwise pre-
vented from normal motion by an adjacent
structure or other obstacle such that control rever-
sal does not free the platform, remove all personnel
from the platform before attempts are made to free
the platform using ground controls.
page 1- 2 Rev A S3970RT, S3370RT & S2770RT – 13865-1
1. Safety
DANGER

No person shall access or egress from the platform
in the elevated position (except in an emergency)
unless the requirements of AS2550.10 have been
met.
For full requirements refer directly to AS2550.10
Do not exceed the unrestricted platform capacity
as indicated on the capacity placard at the
entrance to the platform. Do not carry loads from
any point outside of the platform.
Make sure that all protective guards, cowlings, and
doors are in place and secure. Be sure the guard-
rail system, including the gate, is in place and se-
cure.
Do not climb on the guardrails or use ladders,
planks, or other devices to extend or increase your
work position from the platform.
Do not use the S3970RT / S3370RT / S2770RT as
a crane, hoist, or jack,or for any other purpose
other than to position personnel, their tools, and
materials.
Do not operate the S3970RT / S3370RT /
S2770RT in winds, or wind gusts, of 28 mph, 45kph
12.5 m/s) or more.
Do not add banners, flags, screens or
shelters etc., to areas of the S3970RT /
S3370RT / S2770RT that are exposed to wind
forces as this will increase the wind loading
and effect stability.
nGeneral Safety Precautions
Do not modify the S3970RT / S3370RT / S2770RT
in any way.
When parts or components are replaced, they shall
be identical or equivalent to original Snorkel parts
or components.
Do not override any of the safety features of the
S3970RT / S3370RT / S2770RT.
Ensure that the machine is secure from any un-
authorised use.
nHydraulic System Precautions
The hydraulic system contains hoses with hydrau-
lic fluid under pressure.
Hydraulic fluid escaping under pressure can
have enough force to inject fluid into the
flesh. Serious infection or reaction can
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.
Do not attempt repairs to hydraulic systems unless
you are trained. Refer to experienced repair per-
sonnel for help.
nFire / Explosion Prevention
Never operate your S3970RT / S3370RT /
S2770RT near a flame or spark. Hydraulic oil and
gasoline are flammable and can explode.
DO NOT operate the S3970RT / S3370RT /
S2770RT in an explosive environment unless the
machine is suitably modified by an authorised
agent of the manufacturer.
DO NOT carry fuel or other flammable or explosive
or toxic substances in the platform unless a risk
and hazard analysis shows that it is safe to do so
and that applicable control measures are in place
e.g. carry only the minimum amount required and in
approved containers etc.
nEngine and Fuel Handling Precautions
Engine exhaust contains carbon monoxide,
a poisonous gas that is invisible and
odorless. Breathing engine exhaust fumes
can cause death or serious illness. Do not
run the engine in an enclosed area or
indoors without adequate ventilation.
Only refuel your S3970RT / S3370RT / S2770RT
outdoors in a clear area void of gas fumes or spilled
gas. Never remove the fuel cap or refuel a gasoline
engine while the engine is running or hot. ALWAYS
allow the engine to cool before refueling. Never al-
low fuel to spill on hot machine components.
DO NOT smoke or permit open flames while
fueling or near fueling operations.
Maintain control of the fuel filler nozzle when filling
the tank.
ENSURE you use an approved fuel container
with appropriate fuel filler nozzle
Do not fill the fuel tank to capacity. Allow room for
expansion.
S3970RT, S3370RT & S2770RT – 13865-1 Rev A page 1- 3
1. Safety
DANGER
DANGER
DANGER
CAUTION
WARNING

If gasoline is spilled, clean up spilled fuel
immediately, push/tow the S3970RT / S3370RT /
S2770RT away from the area of the spill and avoid
creating any source of ignition until the spilled fuel
has evaporated.
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.
nBatteries
Charge batteries in a well ventilated area free of
flame, sparks, or other hazards that might cause
fire or explosion.
Batteries give off hydrogen and oxygen that
can combine explosively. Death or serious
injury can result from a chemical explosion.
Do not smoke or permit open flames or
sparks when checking batteries.
Battery acid can damage the skin and eyes.
Serious infection or reaction can result if
medical treatment is not given immediately.
Wear face and eye protection when working
near batteries.
Batteries contain sulfuric acid that can damage
your eyes or skin on contact. Wear a face shield,
rubber gloves, and protective clothing when work-
ing around batteries. If acid contacts your eyes,
flush immediately with clear water and get medical
attention. If acid contacts your skin, wash off imme-
diately with clear water.
nSafety Decals and Placards
There are several safety decals and placards on
the S3970RT / S3370RT / S2770RT. Their loca-
tions and descriptions are shown in this section.
Take time to study them.
Be sure that all the safety decals and
placards on the S3970RT / S3370RT /
S2770RT are legible. Clean or replace them if
you cannot read the words or see the
pictures. Clean with soap & water and a soft
cloth. Do not use solvents.
You MUST replace a decal or placard if it is
damaged, missing, or cannot be read. If it is
on a part that is replaced, make sure a new
decal or placard is installed on the replaced
part. See your Snorkel dealer for new decals
and placards.
Note:
From time-to-time certain Snorkel decals may be
deleted, altered or replaced, or new decals may
be added in line with new safety regulations or
machine specification changes.
If you are unsure or want to check a particular
decal or its placement on the machine contact
your nearest Snorkel dealer or the snorkel
website.
nSafety Placards and Decals Location
page 1- 4 Rev A S3970RT, S3370RT & S2770RT – 13865-1
1. Safety
CAUTION
WARNING

S3970RT, S3370RT & S2770RT – 13865-1 Rev A page 1- 5
1. Safety
LEFT HAND SIDE OF THE MACHINE
On Fuel Tank Inside Cabinet &
Outside Of Cabinet Door
0372061
TORQUE
·
90-100 Ft. Lbs.122-135 N m
Lug Bolts/Nuts
Check Every 30 Days
501453-000
All 4 Stabilisers

page 1- 6 Rev A S3970RT, S3370RT & S2770RT – 13865-1
1. Safety
RIGHT-HAND SIDE OF MACHINE
STORAGE POSITION
PROPER POSITION FOR USE
SAFETY BAR 24”
YOU MUST NOT OPERATE THIS DEVICE UNLESS:
AN UNTRAINED OPERATOR SUBJECTS HIMSELF AND OTHERS TO
DEATH OR SERIOUS INJURY.
0323897
1.
2.
YOU HAVE BEEN TRAINED IN THE SAFE OPERATION OF THIS
DEVICE AND HHHH
YOU KNOW AND FOLLOW THE SAFETY AND OPERATING
RECOMMENDATIONS CONTAINED IN THE MANUFACTURER'S
MANUALS, YOUR EMPLOYER'S WORK RULES, AND APPLI-
CABLE GOVERNMENTAL REGULATIONS. HHHHHHHH
DANGER
DANGER
300700
SHEARING HAZARD/CRUSHING HAZARD
Death or serious injury might result from
having body parts sheared or crushed as the
platform descends. Keep away from closing
scissor arms and keep out from under the
platform as the platform comes down.
0372061
TORQUE
·
90-100 Ft. Lbs.122-135 N m
Lug Bolts/Nuts
Check Every 30 Days
0372061
TORQUE
·
90-100 Ft. Lbs.122-135 N m
Lug Bolts/Nuts
Check Every 30 Days
EMERGENCY OPERATION
1. EMERGENCY LOWERING
In the event of total power failure pull the emergency lowering handle
[A] mounted at the front of the chassis until the platform starts to
descend. Once the platform is lowered the handle can be released.
2. TOWING OR PUSHING THE MACHINE
Free-wheel the Drive Motors
DANGER
A runaway machine can cause death or Serious Injury. Do Not
proceed unless the machine is on a level surface or is attached
to an object that can hold the machine on a slope.
CAUTION
The machines Drive motors will be ruined if the machine
is pushed or towed faster than 3.2 kph (2 mph).
In order to push or tow the machine the following steps
MUST be taken.
Open the free-wheeling valve [A] by turning counterclockwise until the
knob stops.
Release the Brakes
To release the brakes, pump the hand pump [B] 5 - 10 times. The brakes
will now be released and the machine is ready to be pushed / towed.
Resetting the Brakes
Once the machine has been safely pushed / towed it is IMPORTANT to
re-apply the brakes by pulling the re-set valve [C] and close the free-
wheel valve [A] by turning fully clockwise.
A
B
C
Free-wheel
Valve
Hand
Pump
Brakes Re-Set
Valve
13601-1
A

S3970RT, S3370RT & S2770RT – 13865-1 Rev A page 1- 7
1. Safety
FRONT END OF THE MACHINE
DEATH OR SERIOUS INJURY CAN RESULT FROM TIPPING OVER.
TO KEEP FROM TIPPING THIS MACHINE OVER FOLLOW THESE RULES.
OTHER ACTIONS CAN ALSO CAUSE THIS MACHINE TO TIP OVER
NOTE: STUDY THE OPERATOR'S MANUAL BEFORE OPERATING THIS MACHINE. 12574
DO NOT override safety devices.
DO NOT overload the machine.
DO NOT stand or sit on guardrails.
DO NOT attach ropes or chains to guardrails.
DO NOT carry loads outside the railing or use
as a crane.
DO NOT use this machine without the railings and the
entry gate in place. You could
fall out and hurt or kill yourself.
DO NOT use this machine if it is not operating correctly,
or if any part of it is damaged,
worn, or missing. An accident
could cause injury or death.
DO NOT let an untrained or unauthorized person use this machine.
When you leave the machine unattended,
remove the key, or turn off the battery
switch on the base of the machine and lock
the battery switch in the off position.
DO NOT replace components critical to machine stability, such as
batteries and wheel equipment, with lighter
DO NOT ride platform while machine is on a truck, fork
lift or other device.
DO NOT use ladder, scaffold, or other means to
increase size or platform height.
DO NOT use with improperly inflated or damaged tires
or wheels.
DO NOT RAISE OR DRIVE AN ELEVATED
PLATFORM ON
SOFT OR UNEVEN
SURFACES
DO NOT RAISE OR DRIVE AN ELEVATED
PLATFORM ON A
SLOPE
GO NO CLOSER THAN 4 feet (1.2m)
to ANY DROP OFF
OR HOLE
4 FT/1.2M
OK
1. 3.2.
TWO-TONE ALARM MEANS TIPOVER DANGER!
LOWER PLATFORM IMMEDIATELY TO AVOID
TIPOVER HAZARDS
USE ON
FLAT, LEVEL, AND
SOLID SURFACES
ONLY
OK
DO NOT RAISE A PLATFORM
IN WIND ABOVE 28 MPH (12.5 M/S)
4 FT/1.2M
WARNING
KEEP LINESCLEAR POWEROF
Unless the Electrical Supply Authority has advised
in writing otherwise;
the clearance between any live overhead
power line and any part of this machine or
load carried is required by law to be
AT LEAST 4 METRES
This is a requirement of regulation 93 of the
Electrical Supply Regulations 1984
in the interests of safe working.
EMERGENCY BLEED
DOWN VALVE
12753
Australia Only
New Zealand Only
ALL DECALS ON
REVERSE SIDE
On Top Of Chassis Member

page 1- 8 Rev A S3970RT, S3370RT & S2770RT – 13865-1
1. Safety
REAR END OF THE MACHINE
S3370RT
S2770RT
11346-1
90 lb
(400 N) Max
28 mph
(12.5 m/s)
90 lb
(400 N) Max
0 mph
(0 m/s)
315 lb
(140 kg)
lb
kg
875 lb
(400 kg)
400 lb
(180 kg)
700 lb
(320 kg)
1015 lb
(460 kg)
1275 lb
(580 kg)
lb
kg
85 lb
(40 kg)
lb
kg
175 lb
(80 kg)
260 lb
(120 kg)
85 lb
(40 kg)
lb
kg
175 lb
(80 kg)
260 lb
(120 kg)
400 lb
(180 kg)
lb
kg
875 lb
(400 kg)
1275 lb
(580 kg)
315 lb
(140 kg)
lb
kg
700 lb
(320 kg)
1015 lb
(460 kg)
12699
90 lb
(400 N) Max
28 mph
(12.5 m/s)
90 lb
(400 N) Max
0 mph
(0 m/s)
40 lb
(10 kg)
lb
kg
875 lb
(400 kg)
125 lb
(50 kg)
700 lb
(320 kg)
740 lb
(330 kg)
1000 lb
(450 kg)
lb
kg
85 lb
(40 kg)
lb
kg
175 lb
(80 kg)
260 lb
(120 kg)
85 lb
(40 kg)
lb
kg
175 lb
(80 kg)
260 lb
(120 kg)
650 lb
(290 kg)
lb
kg
350 lb
(160 kg)
1000 lb
(450 kg)
565 lb
(250 kg)
lb
kg
175 lb
(80 kg)
740 lb
(330 kg)
12699-4
90 lb
(400 N) Max
28 mph
(12.5 m/s)
90 lb
(400 N) Max
0 mph
(0 m/s)
335 lb
(150 kg)
lb
kg
875 lb
(400 kg)
420 lb
(190 kg)
700 lb
(320 kg)
510 lb
(230 kg)
770 lb
(350 kg)
lb
kg
85 lb
(40 kg)
lb
kg
175 lb
(80 kg)
260 lb
(120 kg)
85 lb
(40 kg)
lb
kg
175 lb
(80 kg)
260 lb
(120 kg)
420 lb
(190 kg)
lb
kg
350 lb
(160 kg)
770 lb
(350 kg)
335 lb
(150 kg)
lb
kg
175 lb
(80 kg)
510 lb
(230 kg)
S3970RT

2. Safety Devices
nSafety Device Information
For emergency operation controls and procedures
see the Emergency Operation chapter 9, in this
manual.
The devices listed in this chapter are safety de-
vices.
They are on the machine to increase safety in the
work place for both the operator and other people
near the machine.
Do not by-pass, disable, modify, or ignore
any of these devices. Check them carefully
at the start of each work shift to see that they
are in working order (see Daily Inspection &
Maintenance chapter 7). If any is found to be
defective, remove the S3970RT / S3370RT /
S2770RT from service immediately until a
qualified service technician can make
repairs.
nEmergency Stop Switches
qAt platform control box
Figure 2.1 - Platform Control Box Emergency
Stop Switch
Press the large red EMERGENCY STOP button in
and the entire machine stops, the engine turns off,
and nothing moves. This switch must be out (on) to
control the S3970RT / S3370RT / S2770RT from
the platform (pull the switch and it will pop out).
Note
In order for the Emergency Stop switch at the
Platform to have an effect the Platform/Ground
Key selector switch (on the lower control box)
must be set on platform.
qAt ground control box
Figure 2.2 - Ground Control Box Emergency
Stop Switch
Press the large red EMERGENCY STOP button in
and the entire machine stops, the engine turns off,
and nothing moves. the EMERGENCY STOP
switch must be out (on) for anything on the
S3970RT / S3370RT / S2770RT to work (pull the
switch and it will pop out).
nAlarms
When an alarm occurs the buzzer in the lower con-
trol box will sound. The upper alarm will only sound
if the upper controls are selected and active.
The different alarm sound patterns are shown in
the table immediately below.
Figure 2.3 - Alarm Sound Patterns
qLowering
The lowering alarm warns people near the machine
that the platform is coming down and the scissor
arm assembly is closing.
Note:
When the alarm sounds for either High
Temperature, Low Oil Pressure, or Alternator not
S3970RT, S3370RT & S2770RT – 13865-1 Rev A page 2- 1
WARNING
No oil Pressure
No Alternator Charge
High Water Temperature
Overloaded
Tilted and Elevated
Axle Switch Open
and Elevated
Lowering or
Forward Drive
Reverse Drive

Charging the engine will automatically shutdown
after 20 seconds.
qHigh temperature
The high-temperature alarm warns you that the
engine is overheating. (See Automatic Shut-Offs &
Circuit Breakers chapter 5for more information.)
qLow oil pressure
The low pressure alarm warns you that the engine
oil pressure is near the lower limit for safe operation
of the engine. (See Automatic Shut-Offs & Circuit
Breakers chapter 5for more information.)
qAlternator not charging
This alarm warns you that the alternator is not
charging the battery. (See Automatic Shut-Offs &
Circuit Breakers chapter 5for more information.)
qDrive (reverse)
The DRIVE (reverse) alarm alerts people that the
S3970RT / S3370RT / S2770RT is traveling back-
ward along the ground. This alarm beeps twice as
fast as the DRIVE (forward) alarm.
qDrive (forward)
The DRIVE (forward) alarm alerts people that the
S3970RT / S3370RT / S2770RT is traveling for-
ward along the ground. This alarm beeps half as
fast as the DRIVE (reverse) alarm.
nLoad sensing system
As soon as the scissor stack rises from it's stowed
position the overload protection system becomes
active.
●If 90% of rated capacity is reached in the
platform the overload light will illuminate.
This is a warning to the operator that the platform
is reaching rated capacity.
Normal function will remain and the machine can
continue to be used
●If 100% of rated capacity is reached in the
platform the overload light will continue to
be illuminated and an alarm will sound.
This is a warning to the operator that rated capac-
ity has been reached and the platform load must be
reduced.
Normal function will remain to allow the platform to
be positioned to remove some load from the plat-
form.
Note:
The machine should not be operated
continuously with the overload alarm sounding.
●If 110% of rated capacity is reached in the
platform the overload light will continue to
be illuminated and an alarm will continue
to sound and all functions will be disabled.
The operator must remove load from the platform.
Normal function will resume once the platform load
has been reduced below 110% continuously for at
least two (2) seconds.
Figure 2.4 - Platform Overload Light
qLevel sensor
The level sensor alarm warns the S3970RT /
S3370RT / S2770RT operator that the S3970RT /
S3370RT / S2770RT is not level. When you hear
this alarm, immediately lower the platform com-
pletely down. When the platform is completely
down, determine and correct the cause of the tilt
before raising the platform again.
NOTE
While the alarm is sounding it is not possible to
drive the S3970RT / S3370RT / S2770RT nor
raise the platform
nPrimary Fall Restraint System
Figure 2.5 - Fall Restraint
page 2- 2 Rev A S3970RT, S3370RT & S2770RT – 13865-1
2. Safety Devices