Snorkel SR2770 User manual

Engine Powered
Diesel - Gasoline
LPG Fuel
Operator’s
Manual
P/N 11669A
September 2005 V7

LIMITED WARRANTY
Snorkel warrants each new machine manufactured and sold by it to be free from defects in material and workmanship for a
period of one (1) year from date of delivery to a Customer or for one year after the machine has been placed in first service in a
Dealer rental fleet, whichever comes first. Any part or parts which, upon examination by the Snorkel Service Department, are
found to be defective, will be replaced or repaired, at the sole discretion of Snorkel, through its local Authorized Dealer at no
charge.
Snorkel further warrants the structural components; specifically, the mainframe chassis, turntable, booms and scissor arms,
of each new machine manufactured by it to be free from defects in material and workmanship for an additional period of four
(4) years. Any such part or parts which, upon examination by the Snorkel Service Department, are found to be defective will
be replaced or repaired by Snorkel through its local Authorized Dealer at no charge; however, any labor charges incurred as a
result of such replacement or repair will be the responsibility of the Customer or Dealer.
The Snorkel Service Department must be notified within forty-eight (48) hours of any possible warranty situation during the
applicable warranty period. Personnel performing warranty repair or replacement must obtain specific approval by Snorkel
Service Department prior to performing any warranty repair or replacement.
Customer and Dealer shall not be entitled to the benefits of this warranty and Snorkel shall have no obligations hereunder
unless the “Pre-Delivery and Inspection Report” has been properly completed and returned to the Snorkel Service
Department within ten (10) days after delivery of the Snorkel product to Customer or Dealer’s rental fleet. Snorkel must be
notified, in writing, within ten (10) days, of any machine sold to a Customer from a Dealer’s rental fleet during the warranty
period.
At the direction of the Snorkel Service Department, any component part(s) of Snorkel products to be replaced or repaired
under this warranty program must be returned freight prepaid to the Snorkel Service Department for inspection. All warranty
replacement parts will be shipped freight prepaid (standard ground) from the Snorkel Service Department or from Snorkel’s
Vendor to Dealer or Customer.
REPLACEMENT PARTS WARRANTY
Any replacement or service part made or sold by Snorkel is not subject to the preceding Limited Warranty beyond the
normal warranty period of the machine upon which the part was installed.
THIS WARRANTY EXCLUDES AND SNORKEL DOES NOT WARRANT:
1. Engines, motors, tires and batteries which are manufactured by suppliers to Snorkel, who furnish their own warranty.
Snorkel will, however, to the extent permitted, pass through any such warranty protection to the Customer or Dealer.
2. Any Snorkel product which has been modified or altered outside Snorkel’s factory without Snorkel’s written approval, if
such modification or alteration, in the sole judgment of Snorkel’s Engineering and/or Service Departments, adversely
affects the stability, reliability or service life of the Snorkel product or any component thereof.
3. Any Snorkel product which has been subject to misuse, improper maintenance or accident. “Misuse” includes but is
not limited to operation beyond the factory-rated load capacity and speeds. “Improper maintenance” includes but is not
limited to failure to follow the recommendations contained in the Snorkel Operation, Maintenance, Repair Parts
Manuals. Snorkel is not responsible for normal maintenance, service adjustments and replacements, including but not
limited to hydraulic fluid, filters and lubrication.
4. Normal wear of any Snorkel component part(s). Normal wear of component parts may vary with the type application or
type of environment in which the machine may be used; such as, but not limited to sandblasting applications.
5. Any Snorkel product that has come in direct contact with any chemical or abrasive material.
6. Incidental or consequential expenses, losses, or damages related to any part or equipment failure, including but not
limited to freight cost to transport the machine to a repair facility, downtime of the machine, lost time for workers, lost
orders, lost rental revenue, lost profits or increased cost.
This warranty is expressly in lieu of all other warranties, representations or liabilities of Snorkel, either expressed or implied,
unless otherwise amended in writing by Snorkel’s President, Vice President-Engineering, Vice President-Sales or Vice
President-Marketing.
SNORKEL MAKES NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THIS LIMITED WARRANTY.
SNORKEL MAKES NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
AND DISCLAIMS ALL LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT
LIMITED TO INJURY TO PERSONS OR PROPERTY.
The Customer shall make all warranty claims through its local Authorized Dealer and should contact the Dealer from whom
the Snorkel product was purchased for warranty service. Or, if unable to contact the Dealer, contact the Snorkel Service
Department for further assistance.
Effective July 1995

SR2770 – 11669A page - i
Electrical Hazard
Electrical Hazard
■Electrical Hazard Warning
SR ELEVATING WORK PLATFORMS
ARE NOT ELECTRICALLY INSULATED.
If the platform, scissors arm assembly, or any other conductive part of an SR contacts a high-voltage elec-
trical 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) - AS OUTLINED IN TABLE 1. AND FIGURE 3.,
ON THE NEXT PAGE.
Be sure to allow for sag and sway in the wires and the work platform.
If an SR 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 SR.
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 SR until you are sure the electricity has been turned off.
If an SR is in contact with a live conductor, the platform operator MUST warn others on the ground in the vi-
cinity of the SR 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 SR ground controls when the platform, scissors arm assembly, or any other
conducting part of the SR is in contact with electrical wires or if there is an immediate danger of such con-
tact.
Regard all conductors as energized.
Personnel working on or near an SR must be continuously aware of electrical hazards, recognizing that
SERIOUS INJURY or DEATH can result if contact with an electrical wire does occur.
DANGER

page - ii SR2770 – 11669A
Electrical Hazard
■Minimum Safe Approach Distance
An SR is an all metal NOT ELECTRICALLY INSULATED, aerial work platform. DO NOT operate it near
ELECTRICAL conductors. Regard all conductors as being energized. Use the table and illustration below
to determine safe clearance from electrical conductors. (Table 1 and Figure 3, below, are from ANSI/SIA
A92.6–1990 Standard, reprinted with permission of Scaffold Industry Association.)
❑Table 1 - (M.S.A.D.)
Minimum Safe Approach Distance
to energized (exposed or insulated power lines)
Voltage range Minimum safe approach distance
(phase to phase) (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
❑Figure 3 - (M.S.A.D.)
Denotes prohibited zone
Danger:
Caution:
- Do not allow machine personnel or conductive
materials inside prohibited zone.
- Maintain M.S.A.D. From all energised lines and parts
as well as those shown.
- Assume all electrical parts and wires are energised
unless known otherwise.
- Diagrams shown are only for purposes of illustrating
M.S.A.D. Work positions, not all work positions.

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 prop-
erty or the SR2770.
■Standard SR2770
The standard SR2770 includes the following fea-
tures:
●Fully proportional one handed joy stick
control
●Reliable diesel engine
●Large 1210mm multi position extension deck
●35% gradeability
●4 wheel drive with articulating axle
●Hour meter
●Temperature & ammeter gauges
●Easy access side trays for engine &
hydraulics
●Lockable hinged covers
●Independently operated hydraulic stabilisers
●Swinging gate
■Options
The following options are available for the SR2770:
●Flashing light
●110/240V power to platform
●RCD/ELCB Outlet
●Optional AC generator
●Automatic stabilisers
●Alternative power options
❍Gasoline engine
❍LPG engine
❍Combination LPG/Gasoline engine
■Operation 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
correct 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.
■Safety 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 SR.
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 SR aerial platform has built in safety features
and has been factory tested for compliance with
Snorkel specifications and industry standards.
However, any personnel lifting device can be po-
tentially dangerous 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 SR before using it on a job site.
Before operation of the SR you must read and un-
derstand the operating instructions in this manual
as well as the decals, warnings, and instructions on
the machine itself.
Before operating the SR you must be
AUTHORIZED by the person in charge to do so
and the operation of the SR must be within the
scope of the machine specifications.
SR2770 – 11669A page - iii
CAUTION
DANGER
WARNING

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 SR on the job site.
■Maintenance
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 Operator’s Manual provides a daily inspection
procedure that will help you keep your SR in good
operating condition.
Do not perform other maintenance unless you are a
trained mechanic, qualified to work on the SR. Call
qualified maintenance personnel if you find prob-
lems 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 SR.
■Responsibilities of parties
It is imperative that all owners and users of the SR
read, understand, and conform to all applicable
regulations. Ultimate compliance to OSHA regula-
tions is the responsibility of the user and their em-
ployer.
ANSI Standard A92.2-2001clearly identifies
requirements of all parties who might be
involved with Boom-Supported Elevating
Work Platforms.
AUSTRALIAN / NZ STANDARD 2550-10 1994
Also identifies the requirements of all
parties who might be involved with
Boom-Supported Elevating Work Platforms.
A reprint of the “Manual of Responsibilities for
Dealers, Owners, Users, Operators, Lessors and
Lessees of ANSI/SIA A92.6-1990 Self Propelled
Elevating Work Platforms” is available from Snor-
kel dealers or from the factory upon request.
Copies are also available from:
Scaffold Industry Association, Inc.,
P.O. Box 1160
Phoenix, AZ 85036-0574 USA
■In summary
●Only trained and authorised operators should
be permitted to operate the equipment.
●All manufacturer’s operating instructions and
safety rules and all employers’ safety rules
and all OSHA and other government safety
rules should be strictly adhered to.
●Repairs and adjustments should be made
only by qualified and trained maintenance
personnel.
●No modification should be made to the
equipment without prior written consent of
the Snorkel Engineering Department.
●Make a pre-start inspection of the SR at the
beginning of each shift. A malfunctioning
machine must not be used.
●Make an inspection of the work place to
locate possible hazards before operating the
SR.
■Additional information
For additional information, contact your local
dealer or Snorkel at:
Snorkel International
2/26 Redfern Street
Wetherill Park NSW 2164
Australia
Snorkel International
PO Box 1041
Levin 5500
New Zealand
page - iv SR2770 – 11669A
Introduction
WARNING
WARNING

Table of Contents
Electrical Hazard
Electrical Hazard Warning ..................i
Minimum Safe Approach Distance ...........ii
Table 1 - (M.S.A.D.) .....................ii
Figure 3 - (M.S.A.D.) ....................ii
Introduction
Standard SR2770........................iii
Options................................iii
Operation Manual........................iii
Safety Alerts............................iii
Operation ..............................iii
Maintenance ...........................iv
Responsibilities of parties .................iv
In summary ............................iv
Additional information ....................iv
1. Safety
Safe Operation ........................1-1
Electrocution Hazards ...................1-1
Minimum safe approach distance .........1-1
Pre-start Inspection .....................1-1
Work Place Inspection and Practices .......1-1
Operation.............................1-2
Tipover and Falling Hazards ..............1-3
General Safety Precautions ..............1-3
Hydraulic System Precautions ............1-3
Fire Prevention ........................1-3
Engine and Fuel Handling Precautions......1-4
Batteries .............................1-4
Safety Decals and Placards ..............1-4
Safety Placards and Decals Location .......1-5
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
Platform control box ...................2-1
Ground control box ....................2-2
Level sensor .........................2-2
Lowering ............................2-2
High temperature .....................2-2
Low oil pressure ......................2-2
Drive (reverse) .......................2-2
Drive (forward) .......................2-2
Guardrails ............................2-2
Safety Prop ...........................2-3
Swinging Gate .........................2-3
Safety Control .........................2-3
Bubble Level ..........................2-3
Operator Horn ........................2-3
Stabilisers ............................2-4
RCD/ELCB AC Outlet (option) ............2-4
Flashing Light (option)...................2-4
Lanyard Anchor Points (option) ...........2-4
3. Specifications
General Specifications, Standard Machines ..3-1
Recommended Hydraulic Oil..............3-1
Engine Data...........................3-2
Engine Oil Charts ......................3-2
WG750-G ...........................3-2
D905-B .............................3-2
Hydraulic Hose Age.....................3-2
Nomenclature and Serial Numbers .........3-3
4. Gauges
Water................................4-1
Amps ................................4-1
Engine Oil ............................4-1
Hydraulic Oil Level .....................4-1
Hours................................4-2
Fuel Level (option)......................4-2
Bubble Level (stabiliser machines only) .....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
Stabilisers ..........................5-1
Circuit Breakers .......................5-2
Main breaker .........................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
Self Levelling Stabilisers (optional)........6-3
7. Daily Inspection and Maintenance
Daily Inspection and Maintenance Table ....7-1
Fuel Level ............................7-2
(Option - LPG) .......................7-2
Fuel Filter (diesel engines only) ...........7-2
Fuel Leaks............................7-2
Engine Oil ............................7-3
Engine Coolant ........................7-3
Radiator Cap ..........................7-3
SR2770 – 11669A

Swinging Gate ........................7-3
Wiring Harnesses and Connectors .........7-3
Battery Terminals ......................7-4
Hydraulic Oil Tank ......................7-4
Hydraulic tank cap ....................7-4
Hydraulic oil level .....................7-4
Hydraulic Oil Leaks ....................7-4
Tires and Wheels ......................7-5
Bolts and Fasteners ....................7-5
Structural Damage & Welds ..............7-5
Guardrails ............................7-6
Bubble Level (machines with stabilisers)....7-6
Guides, rollers, and slides................7-6
Charging System.......................7-6
Level Sensor ..........................7-7
Ground Controls .......................7-7
Emergency Lowering....................7-7
Platform Controls.......................7-7
Flashing Light (option)...................7-8
RCD / ELCB (option) ....................7-8
Safety prop ...........................7-8
Lanyard Anchorages (option) .............7-8
Placards and Decals ...................7-10
Standard placards and decals ..........7-10
Inspection drawing ...................7-11
8. Operation
Operating Procedures ...................8-1
Control Stations........................8-1
Emergency Stopping ....................8-1
Operation Considerations ................8-1
Fuel type ............................8-2
Operating From The Ground Control Box ...8-2
Raising the platform ...................8-3
Operating From The Platform Control Box ...8-4
Driving .............................8-7
Raising the Platform ...................8-7
Stabilisers ............................8-8
Setting the stabilisers ...................8-8
To raise the stabilisers: ................8-9
Self Levelling Stabilisers (Optional) ........8-9
Setting the stabilisers manually .........8-10
Raising the stabilisers manually .........8-10
Extending The Multi-Position Platform .....8-11
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
Transporting .........................10-2
Trailering ...........................10-2
Securing to a Transport Vehicle .........10-2
Towing ............................10-3
Lifting / Lashing Down.................10-3
Pushing ...........................10-3
Winching Procedure ..................10-4
11. Options
RCD / ELCB Outlet ....................11-1
Flashing Light ........................11-1
Electrical Outlet .......................11-1
Lanyard Anchor Points .................11-1
12. Fire Fighting and Chemical Containment
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) ..................12-4
13. Operator's Troubleshooting
Troubleshooting.......................13-1
Operator Troubleshooting Chart .........13-1
page - vi SR2770 – 11669A
Table of Contents

1. Safety
■Safe Operation
Knowledge of the information in this manual, and
proper training, provide a basis for safely operating
the SR2770. Know the location of all the controls
and how they operate to act quickly and responsi-
bly 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
SR 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.
■Electrocution Hazards
The SR is an all metal aerial work platform and is
not electrically insulated. Do not operate it near
electrical conductors. Regard all conductors as be-
ing energized. Do not operate outside during a
thunderstorm.
❑Minimum safe approach distance
Minimum safe approach distances to energised
power lines and their associated parts must be ob-
served wile operating the SR.
Figure 1. - Minimum Safe Approach Distance
The SR is not electrically insulated. Death or
serious injury can result from contact with,
or inadequate clearance from, an energised
conductor. Do not go closer than the
minimum safe approach distance as defined
by ANSI.
ANSI publications define minimum distances that
must be observed when working near bus bars and
energised power lines. Figure 1 and Table 1 are re-
printed courtesy of the Scaffold industry Associa-
tion, ANSI/SIA A92.5.
Table 1. - Minimum Safe Approach Distance
■Pre-start Inspection
At the start of each work shift, the SR2770 shall be
given a visual inspection and function test. See the
“Daily Inspection and Maintenance” chapter 7, in
this manual for a list of items to inspect and test.
DO NOT operate the SR2770 unless you are
trained and authorized, understand the
operation characteristics of the SR2770, and
have inspected and tested all functions to be
sure they are in proper working order.
■Work Place Inspection and Practices
Do not use the SR2770 as a ground for welding.
Ground to the work piece.
Before the SR2770 is used, and during use, check
the area in which the SR2770 is to be used for pos-
sible hazards such as, but not limited to:
●Drop-offs or holes.
●Side slopes.
SR2770 – 11669A page 1- 1
WARNING
Denotes prohibited zone
Caution: - Diagrams shown are only for purposes of illustrating
M.S.A.D. Work positions, not all work positions.
Voltage Range
(Phase to Phase
Minimum Safe Approach
Distance
Feet Metres
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 10.7
Over 750kV to 1000kV 45 13.72
DANGER

●Bumps and floor obstructions.
●Debris.
●Overhead obstructions and electrical
conductors.
●Hazardous locations.
●Inadequate surface and support to withstand
all load forces imposed by the aerial platform
in all operating configurations.
●Wind and weather conditions.
●Presence of unauthorized persons.
●Other possible unsafe conditions.
Before the SR2770 is used, determine the hazard
classification of any particular atmosphere or loca-
tion according to ANSI/NFPA 505-1987.
Any SR2770 operated in a hazardous location
must be approved and of the type required by
ANSI/NFPA 505-1987.
While operating the SR a recommended safety
practice is to have trained and qualified personnel
in the immediate work area of the SR2770 to:
●Help in case of an emergency.
●Operate emergency controls as required.
●Watch for loss of control by platform
operator.
●Warn the operator of any obstructions or
hazards that may not be obvious to them.
●Watch for soft terrain, sloping surfaces,
drop-offs, etc., where stability could be
jeopardized.
●Watch for bystanders and never allow
anyone to be under, or to reach through the
booms while operating the aerial platform.
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.
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 SR2770.
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 SR2770 that is damaged or not
functioning properly. Do not use the SR until the
machine has been repaired by a qualified mainte-
nance person.
Do not operate a SR2770 that does not have all its
decals and placards attached 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.
■Operation
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 points of support when getting on or off
the platform (two hands and one 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 direc-
tion.
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.
page 1- 2 SR2770 – 11669A
1. Safety
DANGER

■Tipover and Falling Hazards
Operate the SR only on a firm, flat, level surface
capable of withstanding all load forces imposed by
the SR2770 in all operating conditions.
The SR can tip over if it becomes unstable.
Death or serious injury can result from a
tip-over accident. Do not drive or position
the SR platform for elevated use near any
drop-off, hole, slope, soft or uneven ground,
or other tip-over hazard.
Do not operate the SR2770 from a position on
trucks, trailers, railway cars, floating vessels, scaf-
folds, or similar equipment 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
assembly becomes caught, snagged, or otherwise
prevented from normal motion by an adjacent
structure or other obstacle such that control
reversal does not free the platform, remove all
personnel from the platform before attempts are
made to free the platform using ground controls.
Under normal working conditions it is best not to
transfer from the platform to another structure or
vice versa, unless that is the safest way to do the
job. Each situation must be judged separately tak-
ing the work environment into account. The follow-
ing guidelines apply:
1. Where possible, place the work platform over
a roof or walking structure to do the transfer.
2. Transfer your anchorage from one structure
to another before you step across.
3. Remember, you might be departing the work
platform to a structure where fall arrest is
required.
4. Do not climb over or through the guardrails.
Use the platform entrance.
All platform occupants MUST wear and use fall re-
straint. Attach fall restraints to the platform lanyard
anchor points.
Do not exceed the unrestricted platform capacity
as indicated on the capacity placard at the en-
trance 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 SR as a crane, hoist, or jack,or for
any other purpose other than to position personnel,
their tools, and materials.
Do not operate the SR2770 in winds, or wind gusts,
of 28 mph, 45kph 12.5 m/s) or more and do not add
anything to the SR2770 that will increase the wind
loading (banners, flags, etc.).
■General Safety Precautions
Do not modify the SR2770 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
SR2770.
■Hydraulic 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.
■Fire Prevention
Never operate your SR near a flame or spark. Hy-
draulic oil and gasoline are flammable and can ex-
plode.
NOTE:
This machine is equipped with an internal
combustion engine (in it's standard configuration)
and should not be used on or near any
unimproved forest-covered, brush-covered or
grass covered land unless the engine's exhaust
system is equipped with a spark arrester meeting
applicable laws. If a spark arrester is used, it
SR2770 – 11669A page 1- 3
1. Safety
DANGER
DANGER

should be maintained in effective working order
by the operator.
■Engine 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 SR outdoors in a clear area void of
gas fumes or spilled gas.
Never remove the fuel cap or refuel a gasoline en-
gine while the engine is running or hot. ALWAYS al-
low the engine to cool before refueling. Never allow
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.
If gasoline is spilled, clean up spilled fuel
immediately, push/tow the SR 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.
■Batteries
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.
■Safety Decals and Placards
There are several safety decals and placards on
the SR2770. Their locations and descriptions are
shown in this section. Take time to study them.
Be sure that all the safety decals and
placards on the SR2770 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.
page 1- 4 SR2770 – 11669A
1. Safety
WARNING
DANGER
CAUTION
WARNING
CAUTION

■Safety Placards and Decals Location
SR2770 – 11669A page 1- 5
1. Safety

page 1- 6 SR2770 – 11669A
1. Safety
STORAGE POSITION
PROPER POSITION FOR USE
SAFETY BAR 24”
RIGHT-HAND SIDE OF SRT

SR2770 – 11669A page 1- 7
1. Safety
REAR END
FRONT END
SRT2770 PLATFORM RATINGS
UNIFORMLY DISTRIBUTED
RATED LOAD
RATED WORK LOAD
MAIN
EXT
EXTENSION
RETRACTED
EXTENSION
EXTENDED
RATED NUMBER OF OCCUPANTS:
5 PERSONS
11346-1
580kg
1280lbs
460kg 1015lbs
120kg
265lbs

2. Safety Devices
■Safety 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 an SR 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” chapter7). If any is found to be
defective, remove the SR from service
immediately until a qualified service
technician can make repairs.
■Emergency Stop Switches
❑At 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 SR from the platform (pull the switch
and it will pop out).
❑At ground control box
Figure 2.2 - Ground Control Box Emergency
Stop Switch
Press the red EMERGENCY STOP switch cover
down, at any time, under any conditions, and the
entire machine stops, the engine turns off, and
nothing moves. the EMERGENCY STOP switch
must be up for anything on the SR to work.
■Alarms
❑Platform control box
Figure 2.3 - Platform Control Box Alarm
There are two alarms on an SR. One is located in
the platform control box, the other is located in the
ground control box.
SR2770 – 11669A page 2- 1
WARNING

❑Ground control box
Figure 2.4 - Ground Control Box Alarm
The alarms are connected in parallel, they both
emit the same pattern of sound at the same time.
The different alarm sound patterns are shown in
the table immediately below and discussed below
the table.
Figure 2.5 - Alarm Sound Patterns
The high-temperature, low oil-pressure, and alter-
nator not-charging alarms are each a continuous
tone.
The DRIVE (forward) and the platform-lowering
alarms beep at one beep per second. DRIVE (re-
verse) beeps at two beeps per second. The level
sensor alarm is a high-low warbling sound.
❑Level sensor
The level sensor alarm warns the SR operator that
the SR is not level. If the tilt continues to increase,
the SR will eventually tip over. When you hear this
alarm, immediately lower the platform completely
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 SR nor raise the platform
❑Lowering
The lowering alarm warns people near an SR that
the platform is coming down and the scissor arm
assembly is closing.
❑High temperature
The high-temperature alarm warns you that the en-
gine is overheating. When the alarm sounds you
should immediately lower the platform completely
down then turn the engine off until the condition
that caused the overheating has been corrected.
(See “Automatic Shut-Offs & Circuit Breakers”
chapter 5for more information.)
❑Low oil pressure
The low pressure alarm warns you that the engine
oil pressure is near the lower limit for safe operation
of the engine. When the alarm sounds you should
immediately lower the platform completely down
then turn the engine off until the condition that
caused the low oil pressure has been corrected.
(See “Automatic Shut-Offs & Circuit Breakers”
chapter 5for more information.)
❑Drive (reverse)
The DRIVE (reverse) alarm alerts people that the
SR is traveling backward along the ground. This
alarm beeps twice as fast as the DRIVE (forward)
alarm.
❑Drive (forward)
The DRIVE (forward) alarm alerts people that the
SR is traveling forward along the ground. This
alarm beeps half as fast as the DRIVE (reverse)
alarm.
■Guardrails
Figure 2.6 - Guardrails
The guardrails help protect you from falling off the
platform. Be sure the guardrails are properly in-
stalled and that the safety chain (or gate) and fas-
teners are in place.
page 2- 2 SR2770 – 11669A
2. Safety Devices

■Safety Prop
Figure 2.7 - Safety Prop
Always raise the safety prop then lower the scis-
sor-arm assembly onto the safety prop before
reaching into the scissor-arm assembly for any
reason. The safety chain should be closed at all
times except when someone is entering or leaving
the platform.
■Swinging Gate
Figure 2.8 - Swinging Gate
The swinging gate should be closed at all times ex-
cept when someone is entering or leaving the plat-
form.
■Safety Control
Figure 2.9 - Joystick Safety Control
The safety control must be squeezed and held to
activate the joystick. The safety control prevents
the joystick from moving the platform if something
accidentally pushes the joystick. Do not disable the
safety control in any way.
■Bubble Level
Figure 2.10 - Bubble Level
See the “Gauges” chapter 4for a discussion of the
bubble level.
■Operator Horn
Figure 2.11 - Operator Horn
The operator horn is used primarily to get the atten-
tion of people on the ground when you are working
aloft. For the horn to work the following switches,
on the ground control box, must be set as indi-
cated:
SR2770 – 11669A page 2- 3
2. Safety Devices

MAIN POWER........................ON
EMERGENCY STOP..............on (up)
SELECTOR............................PLATFORM
■Stabilisers
Figure 2.12 - Stabilisers
The stabiliser controls are on the upper left side of
the platform control box. The stabilisers are used to
level the SR (for complete stabiliser operating pro-
cedures see the “Operation” chapter 8).
NOTE
The SR must be on a firm surface capable of
withstanding all load forces imposed by the aerial
platform in all operation conditions before the
stabilisers are used.
■RCD/ELCB AC Outlet (option)
Figure 2.13 - RCD/ELCB AC Outlet
The RCD (Residual Current Device) is located at
the ground and will protect against short circuits to
earth. When there is a short circuit the RCD will
shut down the 230v AC power to the platform
outlet. To reset the outlet disconnect the power tool
lead from the platform box and reset the RCD at the
ground. If the problem persists call a trained
service technician.
■Flashing Light (option)
Figure 2.14 - Flashing Light
The flashing light alerts people that the SR is pres-
ent and that the SR is moving. The light flashes at
about one flash per second any time the SR engine
is running. There is no ON/OFF switch for the flash-
ing light, it cannot be turned off while the SR is run-
ning.
■Lanyard Anchor Points (option)
There are four anchors on the floor of the platform,
one at the front of the roll-out deck, one at the back
of the platform, and one on each side of the plat-
form.
NOTE
These anchors are not for lifting or tying down
the machine.
You should attach your fall protection to the an-
chors if work rules require it.
page 2- 4 SR2770 – 11669A
2. Safety Devices
RCD
Power Input
Connector
Power Outlet
At Platform