Snorkel S1930 User Manual

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Page 1

Operator’s

Manual

P/N 0361266 March, 2001

Page 2

DANGER

The aerial platform is not electrically insulated. Death or serious injury can result from contact with,or inadequate clearance from,an energized conductor.

Do not go closer than the minimum safe approach distance as defined by the Mini mum 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, scissors structure, or any part oftheaerial platform contacts a high-voltage

electrical conductor, the entire machine can become electrically charged. Ifthathappens,remain onthe machineand donot contactanyotherstructure orobject.This

includestheground, adjacentbuildings,poles,andany otherobjectsthat are notpartofthe 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 groundpersonnelinthevicinityto stay away.Theirbodies 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, scissors structure, or any

part of theaerial platform is in contact with a high-voltage electricalconductor or if there is an immediate danger of such contact.

Personnel on or near an aerial platform must be continuously aware of electrical hazards, recognizingthat deathor seriousinjurycanresultfromcontactwithanenergizedconductor.

Battery posts, terminals and related accessories contain lead and lead components, chemicals knownto the State of California to cause cancer and birthdefects or other reproductive harm. Wash hands after handling.

S1930 – 0361266

Page 3

Chapter 1. Introduction

Aerial Platform Features. . . . . . . . . . . . . . . . . . . . . 1-1

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Operator’s Manual . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Manual of Responsibilities . . . . . . . . . . . . . . . . . . . 1-2

Additional Information. . . . . . . . . . . . . . . . . . . . . . . 1-2

Chapter 2. Specifications

Component Identification . . . . . . . . . . . . . . . . . . . . 2-1

General Specifications . . . . . . . . . . . . . . . . . . . . . . 2-2

Chapter 3. Safety

Electrocution Hazards . . . . . . . . . . . . . . . . . . . . . . 3-1

Minimum Safe Approach Distance . . . . . . . . . . 3-1

Prestart Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Work Place

Inspection and Practices . . . . . . . . . . . . . . . . . . . . 3-2

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Tip-Over and Falling Hazards. . . . . . . . . . . . . . . . . 3-2

Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Placards and Decals. . . . . . . . . . . . . . . . . . . . . . . . 3-3

Chapter 4. Safety Devices

Emergency Stop Controls. . . . . . . . . . . . . . . . . . . . 4-1

Drive Motion Alarm. . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Pothole Protector Skids . . . . . . . . . . . . . . . . . . . . . 4-1

Drive/Lift Pothole

Protector Interlock . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Drive/Lift Level Sensor Interlock. . . . . . . . . . . . . . . 4-2

Lowering Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Emergency Lowering Lever . . . . . . . . . . . . . . . . . . 4-2

Safety Prop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Guardrails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Ground Fault Circuit Interrupter . . . . . . . . . . . . . . . 4-3

Tilt Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Flashing Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Chapter 5. Gauges

Hour Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Ammeter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Battery Condition Indicator. . . . . . . . . . . . . . . . . . . 5-1

Chapter 6. Batteries

General Maintenance . . . . . . . . . . . . . . . . . . . . . . . 6-1

Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Chapter 7. Controls

Battery Disconnect Switch . . . . . . . . . . . . . . . . . . . 7-1

Lower Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Emergency Stop Button. . . . . . . . . . . . . . . . . . . 7-1

Control Selector Switch. . . . . . . . . . . . . . . . . . . 7-1

Platform Raise/Lower Switch. . . . . . . . . . . . . . . 7-1

Circuit Breaker Reset Buttons . . . . . . . . . . . . . . . . 7-1

Upper Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Emergency Stop Button. . . . . . . . . . . . . . . . . . . 7-2

Drive/Lift Selector Switch. . . . . . . . . . . . . . . . . . 7-2

Joystick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Steer Switch . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Horn Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Battery Condition Indicator . . . . . . . . . . . . . . . . 7-2

Chapter 8. Prestart Inspection

Operator’s Manual . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Battery Fluid Level. . . . . . . . . . . . . . . . . . . . . . . 8-1

Battery Terminals. . . . . . . . . . . . . . . . . . . . . . . . 8-1

Battery Charger. . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Safety Prop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Cables and Wiring Harness . . . . . . . . . . . . . . . . . . 8-2

Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Fluid Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

Hoses, Tubes, and Fittings . . . . . . . . . . . . . . . . 8-3

Free-Wheeling Valve . . . . . . . . . . . . . . . . . . . . . 8-3

Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Parking Brakes. . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Ground Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Lower Control Station. . . . . . . . . . . . . . . . . . . . . . . 8-4

Operating Controls. . . . . . . . . . . . . . . . . . . . . . . 8-4

Emergency Stop . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Lowering Alarm . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Pothole Protector Interlock. . . . . . . . . . . . . . . . . . . 8-5

Level Sensor Interlock . . . . . . . . . . . . . . . . . . . . . . 8-5

Emergency Lowering . . . . . . . . . . . . . . . . . . . . . . . 8-6

Flashing Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Weldments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Slide Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Fasteners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Upper Control Station. . . . . . . . . . . . . . . . . . . . . . . 8-7

Guardrail System. . . . . . . . . . . . . . . . . . . . . . . . 8-7

Platform Extension. . . . . . . . . . . . . . . . . . . . . . . 8-7

Operating Controls. . . . . . . . . . . . . . . . . . . . . . . 8-7

Emergency Stop . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Lowering Alarm . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Drive Motion Alarm . . . . . . . . . . . . . . . . . . . . . . 8-8

Electrical Power Outlet . . . . . . . . . . . . . . . . . . . 8-8

Battery Condition Indicator . . . . . . . . . . . . . . . . 8-8

Horn. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Placards and Decals. . . . . . . . . . . . . . . . . . . . . . . . 8-9

Prestart Inspection Check List . . . . . . . . . . . . . . . 8-11

S1930 – 0361266

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Table of Contents

Chapter 9. Operation

Preparing for Operation . . . . . . . . . . . . . . . . . . . . . 9-1

Lower Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Upper Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Drive Speeds . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Drive/Lift Level Sensor Interlock. . . . . . . . . . 9-2

Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Raising and Lowering. . . . . . . . . . . . . . . . . . 9-3

Extending . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Brakes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Swing-Out Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Electrical Power Outlet . . . . . . . . . . . . . . . . . . . . . . 9-4

Chapter 10. Stowing and Transporting

Stowing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Lifting With a Forklift . . . . . . . . . . . . . . . . . . . . 10-1

Winching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Hoisting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Securing for Transport. . . . . . . . . . . . . . . . . . . 10-3

Chapter 11. Emergency Operation

Emergency Lowering . . . . . . . . . . . . . . . . . . . . . . 11-1

Towing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Chapter 12. Troubleshooting

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . 12-1

Appendix A. Glossary

S1930 – 0361266

Page 5

Chapter 1. Introduction

Aerial Platform Features

The aerial platformisaself-propelled scissors lift that has been designed for indoor use only, to raise personnel, theirtools,and materialtothe workstation.The platformis raised and lowered with a hydraulic cylinder. A h ydr aulic motor oneachofthefront drivewheels provides powerto move the aerial platform.

The standard machine includes the following features.

●

Proportional drive and lift up control

●

Driveable at full height

●

Drive motion alarm

●

Non-marking tires

●

Automatic pothole protection system

●

Level sensor with drive/lift interlock

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Hour meter

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Manual lowering valve

●

Lockable battery disconnect switch

●

Tie-down lugs

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Lifting lugs

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Heavy duty battery charger with ammeter

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Swing-outhydraulicandelectricalcomponenttrays

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Non-slip metal platform floor

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Three foot platform extension

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125 volt AC electrical outlet with GFCI

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Scissor ar m safety support prop

●

Lowering alarm

●

Removable upper controls

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Forklift loadable from three sides

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Rear forklift pockets

●

Chain entry gate

●

Five year warranty

The aerial platform has been manufacturedtoconform toallapplicablerequirements of the followingorganiza tions.

●

Occupational Safety and Health Administration (OSHA)

●

American National Standards Institute (ANSI)

●

Canadian Standards Association (CSA)

●

European Standard prEN 280

Options

Thefollowingoptionsmaybeprovidedonthe machine.

●

Horn

●

Flashing light

●

Swinging platform gate

●

Battery condition indicator

●

EE rating (consult factory)

Operator’s Manual

This manual provides information for safe and proper operation of the aerial platform. Read and understand theinformationin thisOperator’sManualbeforeoperat ing 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 makeproductchangesat any time without obligation.

Safety Alerts

A safetyalert symbol is used throughout this manual to indicate danger and caution instructions.Follow these instructions to reduce the likelihood of personal injury andpropertydamage.Thetermsdanger andcaution indicate varying degrees of personal injury or property damagethat canresult iftheinstructionis notfollowed.

ADANGER

Indicates asituationwhich if not avoided canresult in death or serious injury.

ACAUTION

Indicates asituationwhich if not avoided canresult in minor injury or property damage.

Notes

Notes are used to provide special information or helpful hints to assist in aerial platform operation, but do not indi cate a hazardous situation.

S1930 – 0361266 1-1

Page 6

Chapter 1. Introduction

Operation

The aerial platform has built-in safety featuresand has beenfactorytested forcompliancewith Snorkel specifi cations and industr y standards. However, any person nellifting aerialplatformcanbepotentiallydangerousin the hands of untrained or careless operators.

ADANGER

The potential for an accident increases when the aerial platform is operated by personnel who are not trained and authorized. Death or serious injury can result from such accidents. Read and under stand the information in this manual and on the placards and decals on the machine before operat ing the aerial platform on the job.

Training is essentialandmustbe performed by a quali fiedperson.Becomeproficientin knowledgeandactual operation before using the aerial platform on the job. Youmustbetrainedandauthorizedtoperformanyfunc tions of the aer ial platform. Operation of the aerial plat form must be within the scope of the machine specifications.

The operator bears ultimate responsibility for following all manufacturer’s instructions and warnings, regulationsandsafetyrulesoftheir employerand/orany state or federal law.

Maintenance

Every person who maintains, inspects,tests,orrepairs the aerial platform must be qualified to do so.Following

the daily prestart inspection in this Operator’s Manual

will help keep the aerial platform in optimum working condition. Other maintenance functions must be per formed by maintenance personnel whoare qualified to work on the aerial platform.

Do not modify this aerial platform without prior written consent of the Snorkel Engineering Department.Modi ficationmayvoid thewarranty, adverselyaffectstability,

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 re sponsibility of the user and their employer.

ANSI publications clearly identify the responsibilities of all personnel who may be involved with the aerial plat form. A reprint of the “Manual of Responsibilities for Dealers, Owners, Users, Operators, Lessors and Lessees of ANSI/SIA A92.6-1999 Self-Propelled Elevating Work Platforms” is available from Snorkel dealers or from the factory upon request.

Copies are also available from: Scaffold Industry Association

20335 Ventura Blvd. Suite 310 Woodland Hills, CA 91364-2471 USA

Additional Information

For additional information contact your local dealer or Snorkel at:

Snorkel Inter national, Inc. P.O.Box 1160 St. Joseph, MO 64502-1160 USA 816-364-0317

http://www.snorkelusa.com

1-2 S1930 – 0361266

Page 7

Chapter 2. Specifications

Component Identification

Upper Controls

Operator’s Manual Holder

Platform Extension

Scissors Structure

Chassis

Guardrails

Toeboards

Platform

Entry Step

Ground Strap

Front

Lower Controls

HydraulicTrayonRightSide Battery Tray on Left Side

S1930 – 0361266 2-1

Pothole Protector Skid

Rear

Page 8

Chapter 2. Specifications

General Specifications

Aerial Platform

Working height 25′ (7.6 m) Maximum platform height 19′ (5.8 m) Turning radius (Right turn)

Inside 5.0″ (12.7 cm)

Outside 64.5″ (1.64 m) Wheelbase 4′ 6″ (1.37 m) Ground clearance

Pothole protector raised 2.5″ (6.3 cm)

Pothole protector lowered 0.75″ (1.9 cm) Maximum wheel load 1,416 lbs (642 kg) Maximum floor pressure 175 psi (12.3 kg/cm²) Weight, GVW

Approximate 3,040 lbs (1,379 kg) Stowed width 30″ (76.2 cm) Stowed length 6′ 2″ (1.9 m)

With step removed 5′ 6″ (1.7 m) Stowed height 6′ 7″ (2.0 m)

Platform

Dimensions

Main 29″ x 61.5″ (74 cm x 156 cm)

Extension 24″ x36″ (61.0 cm x 91.4 cm) Guardrail height

Main 39″ (1.0 m)

Extension 39″ (1.0 m) Toeboard height 6″ (15.2 cm) Rated work load

Total 500 lb (227 kg)

Extension 250 lb (113 kg) Maximum number of occupants 2 people AC outlet 120 V, 17.4 amp

Function Speed

Platform raise 12 to 20 seconds Platform lower 20 to 26 seconds Drive

Platform raised less than 7′ (2.1 m)

0 to 2 mph (0.6 to 3.2 km/h)

Platform raised more than 7′ (2.1 m)

0 to 0.4 mph (0 to 0.6 km/h)

Drive System

Standard 2-wheel dr ive Gradeability 20%

Drive/Lift Level Sensor Interlock

Side to side 2° Front to rear 4°

Tires

Solid r ubber 4″ x12″ (10.2 cm x 30.5 cm)

Electrical System

Voltage 24 V DC negative chassis ground Source 4-6 V 220 amp hour batteries Fluid recommended distilled water

Hydraulic System

Maximum pressure 2,800 psi (19,305 kPa) Reservoir capacity 3 US gal (11.4 l) System capacity 3.5 US gal (13.2 l) Maximum operating temperature 160°F (71°C) Hydraulic fluid recommended

Above 10°F (-13°C) Mobil DTE-13M (ISO VG32) Below 10°F (-13°C) Mobil DTE-11M (ISO VG15)

Ambient Air Temperature Operating Range

Fahrenheit 0°F to 110°F Celsius -18°C to 43°C

2-2 S1930 – 0361266

Page 9

Chapter 3. Safety

Knowledgeoftheinformationinthismanual,andproper training, provide a basis for safely operating the aerial platform.Know the location of all controls and howthey operatetoactquicklyandresponsiblyin anemergency.

Safety devices reduce the likelihood of an accident. Never disable, modify, or ignore any safety device. Safety alerts in this manual indicate situations where accidents may occur.

If any malfunction, hazard or potentially unsafe condi tionrelatingtocapacity,intended use, orsafeoperation is suspected, stop aerial platform operation and seek assistance.

The operator bears ultimate responsibility for following all manufacturer’s instructions and warnings, regula tionsandsafetyrulesoftheir employerand/orany state or federal law.

Electrocution Hazards

Theaerialplatform ismadeof metalcomponentsand 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 linesandtheir associatedpartsmustbeobservedwhile operating the aerial platform.

ADANGER

The aerial platform is not electrically insulated. Deathor seriousinjurycan resultfromcontactwith, or inadequate clearance from, an energized con ductor.Do not go closer than the minimumsafeap proach distance as defined by ANSI.

ANSI publications define minimum distances that must be observed when working near bus bars and ener

gized power lines. Table 1 and Figure 3 are reprinted

courtesy of Scaffold Industry Association, ANSI/SIA A92.6, page 36.

Voltage range

(phase to phase)

0 to 300V Over 300V to 50kV Over 50kV to 200kV Over 200kV to 350kV Over 350kV to 500kV Over 500kV to 750kV Over 750kV to 1000kV

Table 1—Minimum Safe Approach Distance

Minimum safe approach distance

(Feet) (Meters)

Avoid contact 10 15 20 25 35 45

3.05

4.60

6.10

7.62

10.67

13.72

Figure 3—Minimum Safe Approach Distance

S1930 – 0361266 3-1

Page 10

Chapter 3. Safety

Prestart Inspection

Perform a prestart inspection before each shift as de scribed in Chapter 8. Do not use the aerial platform on thejob unlessyouaretrainedandauthorizedto doso.

Work Place Inspection and Practices

Do not use the aerial platform as a ground connection when welding. The welding ground clamp must be at tachedtothe same structure thatisbeing welded.Elec trical current flowcan be very intense, causingserious internal damage to some components.

Inspect the area beforeand during aerial platform use. Thefollowingaresomepotentialhazards thatmaybein the work place.

●

Debris

●

Slopes

●

Drop-offs or holes

●

Bumps and floor obstructions

●

Overhead obstructions

●

Unauthorized persons

●

High voltage conductors

●

Wind and weather conditions

●

Inadequate surface and support to withstand load forcesappliedby theaerialplatformin all operating configurations

Beforeusing the aerial platforminany hazardous (classified) location, make certain it is approved and of the typerequiredbyANSI/NFPA 505foruse in thatparticu lar location.

Know and understand the job site traffic-flow patterns and obey the flagmen, road signs, and signals.

While operatingtheaerialplatform,agoodsafety prac ticeistohavequalifiedpersonnelinthe immediatewor k area to:

●

Help in case of an emergency

●

Operate emergency controls as required

●

Watch for loss of control by platform operator

●

Warn the operator of any obstructions or hazards that may not be obvious to them

●

Watch for soft terrain, sloping surfaces, drop-offs, etc. where stability could be jeopardized

●

Watchfor bystandersandnever allowanyonetobe under, or to reach through the scissors structure while operating the aerial platform

Pinch points may exist between moving compo

ADANGER

nents. Death or serious injury can result from be coming trapped between components, buildings, structures, or other obstacles. Make sure there is sufficient clearance around the machine before moving the chassis or platform. Allow sufficient room and time to stop movement to avoid contact

with structures or other hazards.

Always look in the direction of movement. Drive with

careandat speeds compatiblewith the workplacecon ditions.Usecautionwhendrivingoverrough ground,on slopes,andwhenturning.Do not engage inanyform of horseplay or permit riders any place other than in the platform.

Secureallaccessories,containers,tools,and otherma terials in the platform to preventthemfromaccidentally falling or being kicked off the platform. Remove all ob jects that do not belong in or on the aerial platform.

Never steady the platform by positioning it against an other platform.Do not use boards, or other temporary means to support or level the aerial platform.

Donotoperate the aerialplatformif it isdamagedor not functioning properly. Qualified maintenance personnel must correct the problembeforeputting the aerial platform back into service.

Operation

Usethreepoints of support whenenteringorexitingthe platform. For example, use two hands and one foot

when climbing into the platform. Makesure theareabelow theplatform isfreeof person

nel before lowering. Keep both feet positioned firmly on the platform floor.

Operate the controls slowly and deliberately to avoid jerky and erratic operation. Always stop the controls in neutral before going in the opposite direction.

Donotdismount while theaerialplatformis in motionor jump off the platform.

Properly stow the aerial platform and secure it against unauthorizedoperationat theendof eachworkday,be fore transporting, or if it is left unattended.

Tip-Over and Falling Hazards

Operatetheaer ial platform onlyona firm, flat, level sur facecapableof withstanding all load forcesimposedby the aerial platform in all operating conditions. Refer to the General Specifications chart for the maximum wheel load, maximumfloorpressure,and drive/lift level sensor interlock information. Raise the platform only when the aerial platform is on level ground.

3-2 S1930 – 0361266

Page 11

Chapter 3. Safety

ADANGER

The aerial platformcan tip over if it becomesunstable. Death or serious injury can result from a tip-overacci dent.Donotdriveorpositiontheaerialplatf ormforele vateduse nearan ydrop-off,hole,slope,softor uneven ground, or other tip-over hazard.

Do not operate the aerial platform within 4 (1.2 m) of any drop-off or hole.

It isbestnotto transfer fromtheplatformtoanother struc tureorfrom the structuretotheplatform, unlessthatis the safest way to do the job.Judge each situation separately takingthe workenvironment intoaccount.If itisnecessary to transf er from the platform to another structure the fol lowing guidelines apply:

1. Ifyou areusinga fallrestraint, transferyouranchor age fromonestructuretothe other beforestepping across.

2. Remember that you might be transf erring to a struc ture where

3. Use the platform entrance, do not climb over the guardrails.

Donotraise theplatformoutdoors or inthewind.Donot addanythingtothe aerial platform that willincreasethe wind loading such as billboards, banners, flags, etc.

Never operate the aerial platform without all parts of the guardrail system in place and the safety chain or gate closed.Makesure thatallprotectiveguards,cowlings,and doors are securely fastened.

Donotexceed theplatformcapacity as indicatedonthe platform rating placard on the platform. Do not carry loads that extend beyond the platform guardrails without prior written consent from Snorkel.

Do not operate the aerial platform from trucks, trailers, railway cars, floating vessels, scaffolds, or similar equipment unless the application is approvedinwriting by Snorkel.

Do not usetheaerialplatformasacrane, hoist, jack,or for anypurpose other than to position personnel, tools, and materials.

Donotclimb ontheguardrails oruseladders, planks,or other devices to extend or increase the work position from the platform.

Take caretopre v entrope, electrical cords,andhoses, etc., from becoming caught in or on the aerial platform. If the platform orscissorsstructurebecomescaughtonanadja cent structure or other obstacle and is preventedfromnor mal motion, reverse the control to free the platform. If control reversal does not free the platform, evacuate the platform before attempting to free it.

personal fall arrest

is required.

Electrical System

Charge the batteries in a well-ventilated area free of flame, sparks, or other hazards that might cause fire or

explosion.

Donotoperateanyoftheaerialplatform functionswhile the battery charger is plugged in.

ADANGER

Batteries give off hydrogen and oxygen that can combineexplosively.Deathor seriousinjury canre

sult from a chemical explosion. Do not smoke or permit open flames or sparks when checking the batteries.

Battery acidcan damage theskinand eyes.Serious infection orreactioncan result if medical treatment

is not given immediately. Wearfaceandeye protec tion when working near the batteries.

Batteries contain sulfuric acid that can damage your

eyes or skin on contact. Wear a face shield, rubber gloves, and protective clothing when wor king around batteries. If acid contacts your eyes, flush immediately with clear water and get medical attention. If acid contacts your skin, wash off immediately with clear water.

Hydraulic System

The hydraulic system contains hoses with hydraulic fluid under pressure.

ADANGER

Hydraulic fluid escaping under pressure can have enough force to inject fluid into the flesh. Serious infection orreactioncan result if medical treatment is notgivenimmediately.In caseofinjuryby escap inghydraulic fluid,seekmedical attentionat once.

Do not place yourhandoranypart of yourbodyinfront of escaping hydraulicfluid.Use a piece of cardboard or wood to search for hydraulic leaks.

Placards and Decals

The aerial platform is equipped with placards and de cals that provide instruction for operation and accident prevention. Do not operate the aerial platform if any placards or decals are missing or not legible.

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Page 12

Page 13

Chapter 4. Safety Devices

This aerial platform is manufactured with safety de vices, placards, and decals to reduce the likelihood of an accident. For the safety of all personnel, do not dis able,modify,orignoreanysafetydevice.Safetydevices are included in the daily prestart inspection.

ADANGER

Thepotentialfor anaccidentincreases whensafety devices do not function properly. Death or serious injury can result from such accidents. Do not alter, disable, or override any safety device.

If any safety devices are defective, remove the aerial platform from service until qualified maintenance per sonnel can make repairs.

Emergency Stop Controls

Thereisan emergencystopcontrol atthelowerandup per controls.

At the lower controls, the emergency stop is a two-position push button (refer to Figure 4.1).

Pushtheemergency stopbuttonin todisconnectpower to all control circuits. Pull the button out to restore power.

Emergency Stop

Figure 4.2—Upper Controls

Drive Motion Alarm

Whenthe joystickismovedout ofneutral todr ivetheae rial platform, the alarm emits a loud beeping sound to warn personnel in the work area to stand clear.

Pothole Protector Skids

The pothole protector skids automatically lower when the platform is elevated approximately 24″ (61 cm). Ground clearance is reduced from 2 (1.9 cm) when the skids lockinto position (refer to Figure 4.3).

″ (6.3 cm)

/4″

Pothole Protector Skid

Figure 4.1—Lower Controls

Note The lower controls override the upper controls. If the upper control emergency stop button is engaged, the lower controls can still be used to operate the aerial platform.

At the upper controls, the emergency stop is a two-position push button (refer to Figure 4.2).

Pushtheemergency stopbuttonin todisconnectpower to the upper control circuits. Pull the button out to re store power.

S1930 – 0361266 4-1

The aerialplatformcan tip over ifitbecomesunsta ble. Death or serious injury can result from a tip-overaccident.Do notdriveor position the aerial platform for elevated use within four feet of any

drop-off, hole, or other tip-over hazard.

This protection system limits the tilt angle if a wheel is driven into a drop-off or hole. This greatly reduces the likelihood of the aerial platform tipping over.

The pothole protection system is for added protection and does not justify operating near drop-offs or holes.

Figure 4.3—Pothole Protector Skids

ADANGER

Page 14

Chapter 4. Safety Devices

Drive/Lift Pothole Protector Interlock

The aerial platform drive and lift functions are inter lockedthrough a limit switchthatsenses whether ornot the pothole protection linkage is locked into position. The drive/lift pothole interlock operates when the plat form is elevated approximately 7′ (2.1 m).

If an obstruction under the skids, or some other impair ment prevents the skids from locking into position, the driveandliftfunctionswill not operate and an alarm will sound.

Lower the platform and remove the obstruction when the drive/lift pothole protector interlock alarm sounds.

Drive/Lift Level Sensor Interlock

The aerial platform drive and lift functions are inter lockedthrough alevelsensorsystem.The drive/liftlevel sensorinterlockoperateswhen theplatformiselevated approximately 7′ (2.1 m).

Ifthechassis istiltedmorethan2degreesside-to-sideor morethan4 degreesfront-to-rear, thedriveandlift func tions will not operate and an alarm will sound.

Lowerthe platformanddriveto alevelsurfacewhenthe drive/lift level sensor alarm sounds.

Thedrive/liftlevelsensor systemisforaddedprotection and does not justify operating on anything other than firm, flat, level surfaces.

Lowering Alarm

When the joystick is moved out of neutral to lower the platform,thealarmemitsaloudbeeping sound to warn personnel in the work area to stand clear.

Emergency Lowering Lever

Theemergencyloweringlevermaybeusedto lowerthe platformifthere isamalfunction inthehydraulicorelec

tricalsystem.Theleverismounted atthe frontofthe ae

rial platform (refer to Figure 4.4).

Emergency Lowering Lever

Figure 4.4—Emergency Lowering Lever

Theemergencyloweringlevermaybeusedto lowerthe scissorsarmsontothesafetyprop beforeinspectingthe

machine.

Safety Prop

The safety prop (refer to Figure 4.5) 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.

Safety Prop

ADANGER

Pinch points exist on the scissors structure. Death or seriousinjurycan result if thescissorsstructure lowers onto personnel within the scissors arms or under the raised platform.Stand clear while raising and lowering the platform.

Becarefulwhenlowering the platform.Keephandsand fingersawayfrom thescissorsstructurescomponents.

Figure 4.5—Safety Prop

4-2 S1930 – 0361266

Page 15

Chapter 4. Safety Devices

Guardrails

The guardrail system includes a top rail, mid rail, and toeboardsaroundthesides of theplatform(refer toFig ure 4.6).

Top Rail

Mid Rail

Toeboard

Figure 4.6—Guardrails

A safety chain or an optional swinging gate allows for access to the platform. The gates close automatically after entering or exitingthe platform.The chain or gate is part of the guardrail system and must be securely fastened after entering the platform.

Entry Chain

Ground Fault Circuit Interrupter

The electrical power outlet (refer to Figure 4.7), at the platform contains a ground fault circuit interrupter (GFCI)to helppreventaccidental conductorgrounding.

Tilt Alarm

An alarm will sound if the aerial platform chassis is out of level more than 1

raised.

/2 degrees when the platform is

ADANGER

The aerialplatformcan tip over ifitbecomesunsta ble. Death or serious injury can result from a tip-overaccident.Do notdriveor position the aerial platform for elevated use near any drop-off, hole, slope, soft or uneven ground,or other tip-over haz ard.

Completely lower the platform and then drive to a level surface when the tilt alar m sounds.

Thetiltalarm isforaddedprotection anddoesnotjustify operating on anything other than firm, flat, level sur faces.

Horn

The optional horn may be used to warn personnel on the ground. The horn is operational when the machine is set up for operation from the upper controls.

Flashing Light

Anoptional redor amberflashing lightmaybelocatedat the rear of the aerial platform (refer to Figure 4.9).The flashinglightwarnspersonnel that the aerial platformis in the area.

Flashing Light

Figure 4.7—Electrical Power Outlet

The light flashes at about one flash per second when the machine is set up for operation from the upper con trols.

S1930 – 0361266 4-3

Figure 4.9—Flashing Light

Page 16

Page 17

Chapter 5. Gauges

The aerial platform is equipped with several gauges to monitor the condition of the machine before and during operation.

Hour Meter

Thehourmeterislocated onthe lowercontrol panel(re fer to Figure 5.1). It measures the accumulated aerial platform operating time.

Hour Meter

Figure 5.1—Lower Controls

Ammeter

The ammeter is located on the battery charger (refer to Figure 5.2). When the batteries are charging, the ammeterdisplaysthe levelof current flowfromthe charger to the batteries.

Ammeter

Figure 5.2—Battery Charger

Battery Condition Indicator

The optional battery conditionindicator (refer to Figure

5.3)islocated ontheupper control panel.Itdisplaysthe level of available battery power to operate the aerial platform. The number one on the scale indicates full power and zero indicates no power.

Battery

Condition Indicator

Figure 5.3—Battery Condition Indicator

SL 19e – 0361265 5-1

Page 18

Page 19

Chapter 6. Batteries

Thebatterytraycontains 4,220amphour,6volt batter ies.These batteries supply 24 volt DC electrical power to operatetheaerialplatform drive and platformcontrol systems. Proper machine operation depends on well maintained and charged batteries.

General Maintenance

Always keep the batter ies clean, free of dirt and corro sion. A film on top of the battery can accelerate dis charge.

Cold reduces battery capacity and retards charging. Heat increases water usage and can result in over charging. Very high temperatures can cause thermal runawaywhichmaylead toanexplosionorfire.Consult a battery charger specialist if extreme temperature use is unavoidable.

ADANGER

Battery acidcan damage theskinand eyes.Serious infection orreactioncan result if medical treatment is not given immediately. Wearfaceandeye protection when working near the batteries.

Use distilled water to refill the batteries. Avoid water containing metallic solids such as iron.

Charging

Fullyrechargethebatteries,immediately afteruse.One charging cycle per day is preferred. Fully charged batteries perform best. The deeper the discharge, the fewernumber of cycles a battery will deliver. Deep dis charges deteriorate the battery quickerthan light shal low cycles.

An overly discharged battery may need to be cycled a fewtimesbeforeit canfully recover.Ifabatterybeginsto heat before becoming fully charged, it may be neces sarytorechargeanddischargethebatteryafewtimes.

The aerial platform is equipped with an automatic bat tery charger thatwill completely recharge the batteries and tur n off after the charge cycle is completed.

ADANGER

Batteries give off hydrogen and oxygen that can combineexplosively.Deathor seriousinjury canre sult from a chemical explosion. Charge the batter ies only in a well ventilated area away from sparks or flame.

It maytakefrom1

ies dependingontheamount of discharge.Ifthe charg ing cycle exceeds 16 hours without the batteries being fully recharged, shut off the charger and have the bat teries checked.

Use the following procedure to charge the batteries.

1. Turn thebattery disconnect switch off (refer to Fig ure 6.1). The switch is next to the latch on the bat tery tray.

Battery

Disconnect Switch

2. Checkthebattery water level.Add water to individualcellsonlyif the platesareexposed.Replacethe battery caps.

3. Plug the charger into a properly grounded outlet (115 voltAC,60Hz)usinga3conductor, 14 gauge or larger extension cord. The extension cord must beas short aspossibleandingoodelectrical condi tion. The charger will turn on three to five seconds afteracompleteelectricalconnectionis made.The ammeter (refer to Figure 6.1) will indicate near 20 amps initially then taper off to 5 to 10 amps as the batteries charge.

Note If the batteries are fully charged when the charger is pluggedin,theammeter will initiallyread15to 20 amps then quickly read zero.

4. Leavethechargerpluggedinuntil itshuts itselfoff.

5. Unplugthe extensioncordafterthe battery charger turns itself off. Allow the batteries to cool off after charging.

6. Checkthebattery water level.Add water to individ ualcellsonlyif the platesareexposed.Replacethe battery caps.

/2 to 16 hours to recharge the batter

Figure 6.1—Battery Tray

ACAUTION

The batteries can be overcharged and/or damaged if the charger fails to shut off automatically. Do not leavethe batterychargeronformore thantwodays.

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Page 20

Page 21

Chapter 7. Controls

Controlstoposition the platformarelocatedon the lower control panel on the chassis and on the upper control panel in the platform. Drive controls are located on the upper control panel only.

Emergency Stop Button

Battery Disconnect Switch

Thebattery disconnectislocatednext to thelatchonthe battery tray (refer to Figure 7.1).

Battery

Disconnect Switch

Figure 7.1—Battery Disconnect Switch

Thebatterydisconnect switchremoveselectricalpower from all electrically controlled functions when in the off position. Place the switch in the on position to operate any electrically controlled function.

ACAUTION

Only authorized personnel should operate the aerial platform. Unqualified personnel may cause injury to coworkers or property damage. Lock the battery disconnect switchintheoffpositionbefore leaving the aerial platform unattended.

Lock the battery disconnect switch in the off position to prevent unauthorized use of the aerial platform.

Lower Controls

The lower controls (refer to Figure 7.2) are located on the left side of the chassis.Only platformfunctions can be operated from the lowercontrols.The followingcon trols are located on the lower control panel.

●

Emergency stop button

●

Control selector switch

●

Platform raise/lower switch

Control Selector Switch

Platform

Raise/Lower Switch

Figure 7.2—Lower Controls

Emergency Stop Button

The emergency stop is a two-position push button. Push thebuttonin to disconnect powertoall control cir cuits.Pull the button out to restore power.

Control Selector Switch

Placethecontrolselector switch inthedownposition to operate aerial platform functions from the lower controls.The uppercontrols will not operate while the control selector is in the lower position.

Place the selector switch in the up position to operate the aerial platform functions from the upper controls.

Platform Raise/Lower Switch

Pull up ontheplatformswitch towardthewhitearrow to raisetheplatform.Releasethe switchwhenthedesired height is reached.

Pushdownontheswitchtowardtheblackarrowtolower the platform.Theloweringalarm will sound as the plat form lowers.

Circuit Breaker Reset Buttons

The lower control panel electrical system has a circuit breakerin itspowerline.Thecircuitbreakersprotectthe

electrical wiring and components from electrical over load in case of a short circuit or other fault.

ACAUTION

A tripped circuit breaker indicates a malfunction in the electrical system. Component damage can re sult ifthecause of the malfunctionisnot corrected. Do not operate the aerial platform if the circuit breaker trips repeatedly.

Push the button to reset the circuit breaker.

S1930 – 0361266 7-1

Page 22

Chapter 7. Controls

Upper Controls

The upper controls (refer to Figure 7.3) are located on the control box at the platform. The following controls are located at the upper control station.

●

Emergency stop button

●

Drive/lift selector switch

●

Joystick to control platform lift, drive and steer

Theoptionalhorn buttonandbattery conditionindicator gaugemayalsobelocatedattheuppercontrol station.

Interlock Switch

Steer Switch

Emergency

Stop Button

Figure 7.3—Upper Controls

Emergency Stop Button

The emergency stop is a two-position red push button on the front of the upper control box.Push thebuttonin to disconnect power to all control circuits at the upper controls.Pull the button out to restore power.

Note The lower controls override the upper controls. If the upper control emergency stop is engaged the lower controlscan stillbe usedto operatetheaerialplatform.

Push the button in when the upper controls are not in use to help protect against unintentional platform oper ation.

Drive/Lift

Selector

Switch

Joystick

Drive/Lift Selector Switch

Placethedrive/liftselectorswitchinthe drivepositionto drivetheaerialplatform using thejoystick.The platform will not raise or lower while driving.

Place the dr ive/lift selector switch in the lift position to raise and lower the platform using the joystick.

Joystick

Use the joystick (refer to Figure 7.3) to operate the fol lowing functions.

●

Aerial platform steering

●

Aerial platform drive and speed

●

Platform raise/lower and speed

Movementof thejoystickinagivendirectionproducesa corresponding movement of the aerial platform. The steering and drive functions may be operated sepa rately or simultaneously.

Interlock

The joystick has an interlock switch in the handle.En gage the interlock by grasping the joystick and pulling the switch toward the handle. Engage the interlock to activate the steering, drive, or lift functions.

Steer Switch

The steer switch is a momentary contact, rocker switch on top of the joystick.This switchcontrols the two front wheels to steer the aerial platform.

To steertothe right, engagetheinterlockon thejoystick andholddowntherightside ofthesteer switch.To steer to the left, engage the interlock on the joystickand hold down the left side of the steer switch.

Note The steering wheels are not self-centering. Set the steeringwheelsstraightaheadaftercompleting aturn.

Horn Button

The optional horn button is onthe left side of the upper control box. Press the button to sound the horn.

Battery Condition Indicator

The optionalbattery condition indicatorgaugeisonthe top of the upper control box. It indicates the level of available battery power to operate the aerial platform.

7-2 S1930 – 0361266

Page 23

Chapter 8. Prestart Inspection

Potentialservice and safetyproblemsmay be detected by inspecting the aerial platform. This chapter includes information on properly inspecting the aerial platform and includes a prestart inspection checklist at the end of the chapter to ensure that no areas are overlooked.

ADANGER

The potential for an accident increases when oper atinganaerial platformthat is damagedor malfunc tioning. Death or serious injury can result from suchaccidents.Donot operate theaerial platformif it is damaged or malfunctioning.

Perform a prestart inspection at the beginning of each shift, beforeusingtheaerialplatform on the job.The in spection site must have a smooth and level surface.

Operator’s Manual

The manual holder is located at the inside the platform (refer to Figure 8.1) at the front of the machine. Make certain it is securely fastened in place.

ACAUTION

Even with low voltage electrical systems, severe arcing can occur. Electrical shock or component damage can result from contact with energized conductors. Use caution when working with any electrical device.

Thebatteriesareinthe swing-outtrayon the leftsideof

the aerial platform.

Battery Fluid Level

Removethecapsfromeachbattery (refertoFigure8.2).Vi sually check the battery fluid level. If the lev el is not within

/4″ (0.6 cm) of the bottom of the filler neck inside each

hole, add distilled water.

Caps

Manual Holder

Figure 8.1—Operator’s Manual Holder

Checkto see thattheproper Operator’sManualis inthe holder.The manual should be complete with all pages intact and in readable condition.

Electrical System

Electricalpoweris suppliedfrom4, 220amphour,6 volt batteries. These batteries supply 24 volt DC electrical power to operate the aerial platform drive and control system.

ADANGER

Batteries give off hydrogen and oxygen that can combineexplosively.Deathor seriousinjury canre sult from a chemical explosion. Do not smoke or permit open flames or sparks when checking the batteries.

Terminals

Figure 8.2—Batteries

Replace the caps on the batteries.The caps must be in place and tight during machine operation and battery charging.

Battery Terminals

Check the top of the batteries, the terminals,andcable ends(refertoFigure8.2).Theyshouldbecleanandfree of corrosion and dirt. Clean the top of the batteries if necessary. Clean the terminals and cable ends with a wirebrushor terminal cleaningtool.Allcable endsmust be securely fastened to the terminals.

Battery Charger

Inspect the battery charger (refer to Figure 8.3) to en sure that it is operating properly.

1. Turn the battery disconnect switch off.

2. Plug the charger into a source of power.

S1930 – 0361266 8-1

Page 24

Chapter 8. Prestart Inspection

3. Observe the reading on the ammeter.The reading should be 20 amps.

Ammeter

Figure 8.3—Battery Charger

4. Unplug the charger.

Safety Prop

Using the lower controls, raise the platform until the openheightbetweenthearm pinsiswide enoughto po sition the safety prop.Refer to Figure 8.4.

Safety Prop

When inspecting or servicing the aerial platform with theplatform raised,use thefollowingproceduretoprop erly position the safety prop.

1. Remove all tools and material from the platform.

2. Usingthe lowercontrols,raise theplatform untilthe openheightbetween thearmpinsis wide enoughto position the safety prop.Ref erto Figure 8.4.

3. Swing the safety prop downward from the storage position to the suppor t position.

4. Remove hands and ar ms from the scissors struc ture area.

5. Lowerthe platform until the scissors are supported by the safety prop.

Use the following procedure to stow the safety prop.

1. Usingthe lowercontrols,raise theplatform untilthe open height between the arm pins is wide enough to position the safety prop.

2. Swing the safety prop up to the stowed position.

Cables and Wiring Harness

Inspect all cables and wiring for wear and/or physical damage such as loose connections, broken wires, and frayed insulation. Check the wiring in areas where a change in routing direction maycausethemtobecome pinched (refertoFigure8.5).Make sure the cables and wires are properly routed to avoid sharp edges, pinching, and scuffing.

Figure 8.4—Safety Prop

Swing thesafetyprop downward fromthestorageposi tion to the support position. Inspect the safety prop for damageanddeformation.Checkforcracksin thewelds that hold the handle and the support channel onto the tube.

Alwaysuse the safety prop when theplatform is raised during inspection and maintenance.

ADANGER

Pinch points exist on the scissors structure. Death or seriousinjurycan result if thescissorsstructure drops onto personnel working within the scissors arms or under the raised platform. Properly posi tion the safety prop before reaching through the scissors structure.

8-2 S1930 – 0361266

Figure 8.5—Cables and Wiring Harness

Hydraulic System

Hydraulicpower issuppliedfrom a singlestagehydrau lic pump with a 4.25 horsepower DC electrical motor.

ADANGER

Hydraulic fluid escaping under pressure can have

enough force to inject fluid into the flesh. Serious

infection orreactioncan result if medical treatment is notgivenimmediately.In caseofinjuryby escap inghydraulic fluid,seekmedical attentionat once.

Page 25

The hydraulic reservoir, pump, filter, and control valve are located in the hydraulic tray on the right side of the chassis.

Fluid Level

Checkthehydraulicfluidlevelwith theaerialplatformon a level surface and the platform raised about two feet. The fluidmustbevisible in theplastictube(refer to Fig ure 8.6).

Fluid Level

Indicator

Figure 8.6—Fluid Level Indicator

Chapter 8. Prestart Inspection

Figure 8.7—Hose, Tubes, and Fittings

Hydraulic fluid leaks are easily visible on the ground. Check under the chassis for fluid that has leaked.

Free-Wheeling Valve

Swing out the hydraulic tray.The free-wheeling valveis located on the hydraulic manifold (refer to Figure 8.8). Check the free-wheeling valve to make sure it is fully closed (clockwise).

ACAUTION

Not all hydraulic fluid is suitable to use in the hydraulicsystem.Somehave poorlubricating characteristics and can increase component wear. Only use hydraulic fluid as recommended.

If necessary, remove the filler cap and add fluid of the proper type. Refer to Chapter 2—Specifications for the propertype andgradeofhydraulicfluidtouse.Theneed toregularlyadd fluidindicatesa leakthatshould becor rected.

Hoses, Tubes, and Fittings

Inspect all hydraulic hoses, tubes, and fittings for wear, leakage,ordamage (refer toFigure8.7).Makesurethe hoses are properly routed to avoid sharp edges, kink ing, and scuffing. Inspect the tubes for dents or other damage thatmayrestrict fluid flow.Makesureall hoses and tubes are held firmly in their support brackets.

Free-Wheeling Valve

Figure 8.8—Free-Wheeling Valve

S1930 – 0361266 8-3

Page 26

Chapter 8. Prestart Inspection

Tires and Wheels

Visually inspect the tires (refer to Figure 8.9). They should be smooth without any cuts,gouges,ormissing rubber that might affect aer ial platform stability.

Figure 8.9—Tires and Wheels

Check the wheel lug nuts to see that none are missing, damaged, or loose.

Parking Brakes

Inspectthebrake releasecamsforrust,dirt,andproper orientation. When the brakes are engaged the release camshouldswing freelywhenpushedwith a finger and be oriented as shown in Figure 8.10.

Emergency Stop Button

Control Selector Switch

Platform

Raise/Lower Switch

Figure 8.11—Lower Controls

Operating Controls

Use the following procedure to operate the machine from the lower controls.

1. Turn the battery disconnect switch on.

2. Atthelower controls,lifttheemergencystop safety guard up, and push the toggle switch up to the on position.

3. Insert the key into the master switch and turn the switch to start until the engine starts, then release it.

4. Let the engine warm to operating temperature.

5. Hold the ground controls switch in the on position.

Ground Strap

Cam

Figure 8.10—Brake Release Cam

Ground Strap

Makecertainthe groundstrap (refertoFigure8.10) isse curely fastened to the chassis. It should be long enough to contact the ground surfacetoeliminatestaticelectric ity from the machine.

Lower Control Station

With no personnel in the platform, test theoperation of each control from the lowercontrolstation(refertoFig ure 8.11).

ADANGER

Pinch points may exist between moving components. Death or serious injury can result from be coming trapped between components, buildings, structures, or other obstacles. Make sure all per sonnel stand clear of the aerial platform while per forming the prestart inspection.

Test the operation of each function in both directions. Test the operation of the platform raise/lower switch in

both directions. Place the battery disconnect switch in the off position.

The platform should not raise or lower with the discon nect in this position.

Emergency Stop

Pushthe emergencystopbuttonin toturnofftheelectri

cal power.The lower control functions should not oper ate with the emergency stop in this position.

Lowering Alarm

Raise the platform and then lower it to ensure that the

alarm sounds to warn personnel in the area that the platform is lowering.

8-4 S1930 – 0361266

Page 27

Chapter 8. Prestart Inspection

Pothole Protector Interlock

Perform this test using the lower controls.

1. Stowtheaerialplatform ona smooth,flat,levelcon crete slab.

2. Remove all persons and materials from the plat form.

3. With the trays closed, check the ground clearance under the pothole protector skids (refer to Figure

8.12). Clearance should be at least 2 both sides of the aerial platform.

Pothole Protector Skid

/4″ (7 cm) on

7. The board will prevent the skid from lowering fully. Raise the platform while watching the skid. When the skid contacts the board, the platform should

stopraisingand analarmshould soundatless than seven feet platform floor height.The alarm should then sound when the platform lift switch is acti vated.The platform should not raise anyfarther.

8. Lowertheplatform.Place the boardunder the skid on the right side.

9. Raise the platform while watching the skid. When the skid contacts the board, the platform should stopraisingand analarmshould soundatless than seven feet platform floor height.The alarm should then sound when the platform raise switch is acti vated.The platform should not raise anyfarther.

ADANGER

Thepotentialfor anaccidentincreases whensafety devices do not function properly. Death or serious injury can result from such accidents. Do not alter, disable, or override any safety device.

10. If the platform raise function is not disabled, or the alarm does not sound remove the aerial platform from service until the problem is corrected.

Figure 8.12—Pothole Protector Skid

4. Raisetheplatform while watchingmovementofthe skids.Theskidsshouldlowertoless than ground clearance when the platform is raised approximately 24″ (61 cm).

5. Fully lower the platform while watching movement of the skids.Theskids should raise to their original position when the platform is lowered to approxi mately 24″ (61 cm).

Placea 1 der the skid on the left side (refer to Figure 8.13).

/2″(3.8 cm)thick board,such asa2x4,un

/4″(2cm)

Level Sensor Interlock

Perform this test after verifying proper operation of the pothole protector interlock.

1. Position the aerial platform on a smooth, flat, level surface.

2. Remove all persons and materials from the platform.

3. From the lower controls, raise the platform to ac cessthe levelsensorat therear ofthe chassis(refer to Figure 8.14).

Level Sensor

Level Sensor Access

Figure 8.14—Left Rear of Chassis

Figure 8.13—Pothole Protector Interlock Test

S1930 – 0361266 8-5

4. Pull the level sensor to the side as far as possible whileraisingthe platform.Theplatform should stop raising and the alarm should sound at less than 7′ (2 m) of platform elevation.

Page 28

Chapter 8. Prestart Inspection

ADANGER

Thepotentialfor anaccidentincreases whensafety devices do not function properly. Death or serious injury can result from such accidents. Do not alter, disable, or override any safety device.

5. If the platform does not stop raising or the alarm does not sound, removethe machine from service until the problem is corrected.

Emergency Lowering

Usingthelowercontrols,fully raise theplatform.Locate the emergency lowering lever (refer to Figure 8.15) at the rear of the aerial platform.

Emergency Lowering Lever

Structures

Visually inspect all mechanical structures including the weldments and related components. It is important to inspect the fasteners that connect the components.

Weldments

Visuallyinspectallweldments forabnormalwear,abra sion, or deformation that could cause interference be tween moving parts.

Inspect the welds on the structural components. The areato beinspected shouldbecleanandfreeofdirt and grease. Look for visible cracks in the weld and at the weld to parent material joint.A bright light may be used to provide adequate visibility of the inspection area.

Pay close attention to welds in areas where changes in crosssection takeplace andnear theattachment points of highly loaded components.

Slide Blocks

Visually inspect the scissors arm slide blocks (refer to Figure 8.17). The slide blocks must be free to move without obstruction.

Figure 8.15—Emergency Lowering Level

While standing clear of the scissors structure, push the leverdown.Theplatformwillbegintolower as the lever is pushed down.Release the lever to stop.

Flashing Light

If the machine is equipped with the optional flashing light (refer to Figure 8.16), visually check to see that it flashes.The light should flash whenpower is turned on to operate the machine.

Flashing Light

Slide Block

Figure 8.17—Scissors Arm Slide Blocks

Raisetheplatform fromthelowercontrolstovisually in spect the slide blocks underneath the front of the plat form (refer to Figure 8.18).

Slide Block

Figure 8.16—Flashing Light

Figure 8.18—Platform Slide Blocks

8-6 S1930 – 0361266

Page 29

Chapter 8. Prestart Inspection

Thereis oneside blockoneachsideoftheplatform.The slide blocksmust be in goodconditionandfree to move without obstruction.

Fasteners

Visually inspect allfastenersto see that none are miss ing or loose.

Pay particular attention to all of the bolts,nuts, roll pins, collars, and snap rings that connect the scissors arms. They should all be present, tight, and not damaged in any way.

Upper Control Station

Inspect the platform and upper controls only if all func tions operated properly from the lower controls.

Guardrail System

The guardrailsystem(refer toFigure8.19)includesthe top rail, mid rail, toeboards and an entry chain or op tional swinging gate.

Top Rail

Platform Extension

A snapper pin at the right front of the platform secures the extension deck to the main platform deck. Inspect the pin (refer to Figure 8.20) to ensure that it properly secures the extension deck.Release the pin to extend the platform. Extend the platform while checking for

proper operation.

Snapper Pin

Figure 8.20—Platform Extension Snapper Pin

Extend the platform and inspect the weldments for deformation and damage. Visually check the platform welds for cracks.

Mid Rail

Toeboard

Figure 8.19—Guardrail System

Inspect all components of the guardrail system. The rails and toeboards must all be in placeand free of any damage or deformation. Visually check the rail and toeboard welds for cracks. All bolts and nuts fastening the guardrails in place must be present and not show any signs of looseness.

Inspect the entry chain to be sure it is present and se curely fastened to the rail. The chain must be free of damage and deformationthatmayprevent if from func tioning properly.Inspect the hook and eye that secures the chain to the rail.

Inspect the optional swinging gate tosee that it swings freely, closes firmly, and is not deformed in any way. Make sure the gate is secure when it’s closed.

Entry Chain

Operating Controls

With the aerial platform stowed, test the operation of eachcontrolfromthe upper control station(referto Figure 8.21).

Interlock Switch

Horn

Steer Switch

Emergency

Stop Button

Figure 8.21—Upper Controls

Place the battery disconnect switch in the on position andfromthelowercontrols,place thecontrolselectorin theupposition andturnthe keyswitch onifthe machine is equipped with that option. Pull the emergency stop button out to turn on the electrical power to the upper controls.

Fromtheuppercontrols,test theinter lock bymovingthe joystick without engaging the interlock switch.If move mentoccursthe interlock isnotfunctioningproperly.Do notoperatethemachineuntiltheproblemiscorrected.

Drive/Lift

Joystick

Selector

Switch

S1930 – 0361266 8-7

Page 30

Chapter 8. Prestart Inspection

Place the drive/lift selector switch in the drive position and test the operation of the joystick in both directions. The liftfunctionsshouldnotoperate with the selector in the drive position.

Place thedrive/liftselectorswitch in theliftpositionand test the operation ofthe joystick in both directions. The drive functions should not operate with the selector in the lift position.

Emergency Stop

Pushthe emergencystopbuttonin toturnofftheelectri cal power.The upper control functions should not oper ate with the emergency stop in this position.

Lowering Alarm

Raise the platform and then lower it to ensure that the alarm sounds to warn personnel in the area that the platform is lowering.

Drive Motion Alarm

Drive in both the forward and reverse directions to en sure that the alarm sounds to warn personnel in the area that the aerial platform is in motion.

Electrical Power Outlet

Connect a source of 125 volt AC power to the power-input connector at the front of the chassis. Plug an electr ical tool into the receptacle and try to operate the tool to verify proper operation of the outlet.

Use the following procedure to test the ground fault circuit interrupter GFCI.

1. Push the black test button (refer to Figure 8.22).

Battery Condition Indicator

The optional battery conditionindicator (refer to Figure

8.23) is located on the upper control panel.

Battery

Condition Indicator

Figure 8.23—Battery Condition Indicator

With themachinesetupto operate from the uppercon trols, check to see that the battery condition indicator gauge displays a power reading.

Horn

Ifthemachineis equipped with theoptionalhorn,press the horn button (refer to Figure 8.21) to ensure that it sounds to warn personnel in the area.

Reset Button

Test Button

Figure 8.22—Electrical Power Outlet

2. Plug an electrical tool into the outlet and verify the power is off.

●

If the power was off, push the reset button to restore power.

●

If the power was on, repair or replace the receptacle.

8-8 S1930 – 0361266

Page 31

Chapter 8. Prestart Inspection

Placards and Decals

Inspect all safety and operational placards and decals. Make certain they are in place, in good condition, and are legible.

Theplacardsand decalsmaybe cleanedwithsoap and water,and asoftcloth if thewordsor pictures cannotbe seen.

ACAUTION

Solvents may contain hazardous ingredients. Fol lowthemanufacturer’slabel for properuse and dis posal. Wear protective gloves and splash-proof safety glasses when using solvents.

Wet paint overspray may be removed using a natural biodegradable solvent and a soft cloth.

Replace any missing or illegible placardsor decals be foreoperatingtheaerial platform.Placardand decalkits are available from Snorkel dealers.

The safety related placards and decals are illustrated on the following pages.

PROPER USEOF SAFETY PROP

DANGER

Properposition forsafety propuse

TOWING INSTRUCTIONS

Before towing,pushing, or winching machine mustbe on level ground. Read andunderstand all instructions, referto Operator's Manual . Turnbatter ydisconnect switch to "OFF" position.

Useawrenchtorotate the lock-outblock to disengage ther earwheel brake pins .

()

Rotate free-wheeling valve counterclockwise as shown.Free-wheeling valve islocated on the main control valve.

After movingmachine, close free-wheeling valve, and verifyt hatbrake resets after operating drive.

1. Removeall materialfrom platform.

2. Raiseplatform until theopen heightis wide enoughto position thesafety prop.

3. Placesafety propin the properposition.

Deathor serious injury

4. Removehands andarms fromsci ssorsarea.

mightr esultif safetyprop

5. Lowerplatform untilsci ssorsare supportedby

is notused and/or properly positioned.Use safetyprop at alltimes whenservicing machine with platformraised.

safetyprop.

TOSTORE SAFETY PROP

1. Raiseplatform until theopen heightis wide enoughto position thesafety prop.

2. Placethe safetyprop in thestorage position.

0361259

()

DISENGAGE BRAKE

CAUTION: use hydraulicpower while

DO NOT

disengaging brake.Brake is spring loaded.

keep handsclear of mechanism.

ALWAYS

FREE-WHEELING

VALVE

0361259

300740

Right Side

0361259

0361258

475596

300740

DEATH ORSERIOUS INJURY CAN RESULT FROMTIPPING OVER.

TO KEEP FROMTIPPING THIS MACHINEOVER FOLLOW THESE RULES.

DO NOTRAISE OR DRIVE ANELEVATED

PLATFORMON A

SLOPE

GO NOCLOSER THAN 4 feet (1.2m)

ANY

DROP OFF

OR HOLE

4FT

OTHER ACTIONSCAN ALSO CAUSE THIS MACHINETO TIP OVER

override safetydevices.

DO NOT

overload themachine.

DO NOT

stand orsit on guardrails.

DO NOT

attach ropesor chains to guardrails.

DO NOT

carry loadsoutside the railingor use as

DO NOT

acrane.

ALARM MEANSTIPOVER DANGER!

LOWERPLATFORM IMMEDIATELY

DO NOTuse this machinewithout the railingsand the

entry gate,chai nor bar in place.Youcould fall out andhur tor kill yourself.

DO NOTuse this machineif it isnot working right,or if

any partof it is damaged, worn,or missing. An accident couldcause injury or death.

3.2. OK

This machineis not electricallyinsulated. Maintain10 feet minimum clearance from electrical powerlines and apparatus.

This machinewill not protect youfrom shock.

Allow forplatform sway,rock, or sag. Ifvoltage is 300V to 50 kVstay at least 10 feet(3.1m) away.If voltage ismore than 50kV talk withyour supervisor orread the Operator'sManual on this machinefor safe distances.

NOTE: STUDYTHE OPERATOR'SMANUAL

BEFORE OPERATINGTHIS MACHINE.

0361258

DO NOTRAISE OR DRIVE ANELEVATED

PLATFORMON

SOFT ORUNEVEN

SURFACES

DO NOTRAISE THE PLATFORM

OUTDOORS ORIN THE WIND

FOR INDOOR

ELEVATIONONLY

DO NOT

ride platform whilemachine is on atruck, fork lift or other device.

DO NOT

use ladder,scaffold, or other meansto increase size or platformheight.

DO NOT

use withimproperl yinflated or damaged tiresor wheels.

4FT

ELECTRICAL SHOCK CANKILL YOU

DO NOT

let anuntrained or unauthorized person usethis machine. When youleave the machineunatt ended,remove the key, or turnof fthe battery switch onthe base of themachine and lockthe battery switch int heoff position.

DO NOT

replace components critical tomachine stability,such as batteries and wheelequipment, with lighter weightor nonfactory approvedsubstitutes.

TO AVOID

TIPOVER HAZARDS

USE ON FLAT,LEVEL, AND SOLID SURFACES

ONLY

0361258

CAUTION

THIS CYLINDER IS SPRING LOADED. INCORRECT ASSEMBLY OR DISASSEMBLYCOULD CAUSE PHYSICAL INJURY. BEFORE REMOVING SNAP RING, RETRACT CYLINDER ROD .25 INCH. REMOVE SNAP RING AND SLOWLY EXTEND CYLINDER ROD UNTIL SPRING PRESSURE IS

Rear

RELEASED. ASSEMBLE IN REVERSE ORDER.

475596

S1930 – 0361266 8-9

475596

Page 32

Chapter 8. Prestart Inspection

0361259

0074311 Rod End of Lift Cylinder

0070901

On Top of Chassis

451986

300760

PROPER USEOF SAFETY PROP

Deathor seriousinjury mightresultifsafetyprop is notused and/or properly positioned.Use safetyprop at alltimes whenser vicingmachine with platformraised.

1. Removeall materialfrom platform.

2. Raiseplatform until theopen heightis wide enoughto position thesafety prop.

3. Placesafety propin the properposition.

4. Removehands andarms fromsci ssorsarea.

5. Lowerplatform untilsci ssorsare supportedby safetyprop.

1. Raiseplatform until theopen heightis wide enoughto position thesafety prop.

2. Placethe safetyprop in thestorage position.

DANGER

Properposition forsafety propuse

0361259

DANGER

DO NOT ALTER OR DISABLE

LIMIT SWITCHES, SAFETY

SWITCHES, OR I NTERLOCKS.

451986

Using incorrect parts

can cause cylinder failure.

Death or serious injury

can result.

Use only:

0074311

TOSTORE SAFETY PROP

0361259

451986

0074311

Left Side

Front

300700

MODEL NUMBER

MONTH /YEAR OF MANUFACTURE

MAXIMUM MACHINE WEIGHT

ENGINE POWERED MODELS

MAXIMUM ALLOWABLE MANUALFORCE (SIDE PULL)

PLATFORM SIZE

MAXIMUM PLATFORM HEIGHT

RATED NUMBER OF OCCUPANTS

Do not remove any weight from this machine Any weight added must be distributed equally on each axle. Proper stability and axle weights of this machine are based on the platform size shown above.

Axle weights with machine in the stowed - travel position. STEER AXLE

DRIVE AXLE

SERIAL NUMBER

SLOPE SENSOR ALARM SETTING

MAXIMUM

lbs

WHEEL

LOAD BATTERY

POWERED

MODELS ONLY

MAXIMUM

lbs

ALLOWABLE

WIND SPEED MAXIMUM

PLATFORM

REACH MAXIMUM

DRIVE

HEIGHT

UNRESTRICTED PLATFORM CAPACITY

CAUTION

DRIVE MOTORS

BATTERIES

lbs

0070901

DANGER

TIPOVER HAZARD

DEATH OR SERIOUS INJURY MAY

RESULT IF MACHINE TIPS OVER

Trays must be closed when platform is elevated.

300760

D ANGER

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 comesdown.

deg

lbs kg

V V

mi/h m/s

ft m

lbs kg

300700

8-10 S1930 – 0361266

Page 33

Chapter 8. Prestart Inspection

Prestart Inspection Check List

Item Inspect for Ok

Operator’s manual Electrical system

Battery fluid level Battery terminals Battery charger Cables and wiring harness

Hydraulic system

Fluid level Hoses, tubes, and fittings Free-wheeling valve

Tires and wheels Parking brakes Ground strap Lower control station

Operating controls Emergency stop Lowering alarm

Pothole protection interlock Level sensor interlock Emergency lowering

In manual holder

Proper level Clean, connectors tight Proper operation No wear or physical damage

Between Full and Add marks No leaks Full closed

Good condition Proper cam operation In place and securely fastened

Proper operation Shuts off lower controls Sounds when platform lowers

Proper operation Proper operation Proper operation

Safety prop Flashing light Structures

Weldments Slide blocks Fasteners

Upper control station

Guardrail system Platform extension Operating controls Emergency stop Lowering alarm Drive motion alarm Electrical power outlet Battery condition indicator Horn

Placards and decals

No damage or deformation Proper operation

Welds intact, no damage or deformation Proper operation, no damage In place and tight

Welds intact, no damage or deformation Proper operation Proper operation Shuts off upper controls Sounds when platform lowers Sounds when aerial platform moves Proper operation Proper operation Sounds when activated

In place and readable

S1930 – 0361266 8-11

Page 34

Page 35

Chapter 9. Operation

The aerial platform may be operated from either the lower or upper controls.

ADANGER

Pinch points may exist between moving compo nents. Death or serious injury can result from be coming trapped between components, buildings, structures, or other obstacles. Make sure there is sufficient clearance around the machine before moving the chassis or platform. Allow sufficient room and time to stop movement to avoid contact with structures or other hazards.

The aerialplatformcan tip over ifitbecomesunsta ble. Death or serious injury can result from a tip-over accident. Operate the aerial platform on a firm, flat, level surface. Avoid travel speeds and/or rough terrain that could cause sudden changes in platform position.

The platform rated work load is the total weight of the personnel and equipment thatmaybe lifted in the platform. The work loads are stated on the platform rating placardmountedon thetoeboardatthefront oftheplatform.

ADANGER

The aerialplatformcan tip over ifitbecomesunsta ble. Death or serious injury can result from a tip-over accident. Do not exceed the capacity val ues indicated on the platform rating placard.

Capacity values indicate the rated lifting capacity and do not indicate aerial platform stability.

The operator bears ultimate responsibility for ensuring thattheaerialplatform is properly setupfor theparticu lar conditions encountered.

Lower Controls

The lower controls override the upper controls. This means that the lower controls may be used to operate theplatformregardless of thepositionof the uppercon trols emergency stop button.

Only the platform raise and lower functions may be op

erated from the lower controls.The lower controls may

be used for initial set up of the aerial platform and for positioning the platform while testing or inspection.

Use the following procedure to raise or lower the plat

form using the lower controls.

1. Pull the emergency stop button outward (refer to Figure 9.1).

Emergency Stop Button

Control Selector Switch

Platform

Raise/Lower Switch

Figure 9.1—Lower Controls

2. Place the control selector switch in the lower position.

3. Hold the platform raise/lower toggle switch up to raise the platform and down to lower it.

4. Release the toggle switch to stop movement.

Upper Controls

Theuppercontrols(refer toFigure9.2)may beusedfor driving the aerial platform and positioning the platform

while on the job.

Preparing for Operation

Makecertainthebatteriesarecharged and thecharger is unplugged before operating the aerial platform. Use the following procedure to prepare the aerial platform for operation.

1. Perform a prestar t inspection as described in Chapter 8.

2. Close and latch the battery and hydraulic compo nent trays.

3. Place the battery disconnect switch in the on posi tion.

S1930 – 0361266 9-1

Interlock Switch

Steer Switch

Emergency

Stop Button

Figure 9.2—Upper Controls

Drive/Lift

Selector

Switch

Joystick

Page 36

Chapter 9. Operation

Before operating from the upper controls, properly set up the aerial platform as described under Preparing for Operation. Use the following procedure to operate the aerial platform from the upper controls.

1. From the lower controls, place the control selector switch in the upper position.

Note The upper controls will not operate while the control selector is in the lower position.

2. Enterthe platformandsecure thechain,or optional swinging gate.

3. Pull the emergency stop button out.

4. Theaerial platform maybe driven and the platform mayberaisedandloweredfrom theupper controls.

Driving

ADANGER

The aerialplatformcan tip over ifitbecomesunsta ble. Death or serious injury can result from a tip-over accident. Do not drive an elevated aerial platform on soft, uneven, or sloping surfaces. Do not drive a fully stowed machine on grades that exceed 20 percent.

A fully stowed machine may be operated on grades up to20percent.Agradeof20percentisa24″(61cm)vertical rise in 10′ (3.05 m) horizontal length.

ADANGER

Death or serious injury can result from improperly drivingorsteering the aerialplatform.Readand understand the information in this manual and on the placards and decals on the machine before operat ing the aerial platform on the job.

Use the following procedure to operate the drive func tions.

1. Place the drive/lift selector switch (refer to Figure

9.2) in the drive position.

2. Squeeze and hold the interlock switch against the joystick.

●

To move forward, slowly push the joystick forward.

●

To move backward, slowly pull the joystick backward.

speeds. Above 7′ (2.1 m) of elevation,onlythe slowest drive speed will work.

ADANGER

Thepotentialfor anaccidentincreases whensafety devices do not function properly. Death or serious injury can result from such accidents. Do not alter, disable, or override any safety device.

Do not use the aerial platform if it drivesfaster than 0.4 mph (0.6 km/h) whichis 20′ ( 6 m) in 30 seconds when elevatedabove7′(2.1m)evenifthejoystickis inthe mid or high speed position.

Drive/Lift Level Sensor Interlock

When the platform is elevated abov e 7′ (2.1 m), lift and drive functions are interlocked through a level sensor system. If the chassis is tilted more than 2 degrees side-to-side or more than 4 degrees front-to-rear, plat form raise and drive functions are disabled and an

alarm sounds when those controls are activated. If the drive/lift level sensor inter lock shuts off the plat

form raise and drive functions, lower the platform and drive to a level surface.

Platformraiseand drive functionsmayalso be disabled by the pothole protection interlock.

Steering

The steer control switchislocatedonthejoystick (referto Figure9.2).Usethe followingprocedure tosteerthe aerial platform using the upper controls.

1. Squeeze and hold the interlock switch against the joystick.

●

Note Holding the steer switch down too long may result in a sharp turn. This is especially true when driving and steering at the same time.It may be easier to turn the wheels in small increments using a series of quicktaps on the steer switch.

To turn totheleft,tap lightlyontheleft sideofthe steer switch.

●

To turntotheright,taplightlyontheright side of the steer switch.

2. Set the steer wheels straight ahead after complet ing a tur n. The steering wheels are not self-centering.

Drive Speeds

The drive speed is proportional to the joystick position. The farther the joystick is moved, the faster the travel speed.

Drive speed ranges are interlocked through a limit switchthat sensesscissorsarmposition.Whenthe plat form is elevatedbelowappro ximatelyseven feet, the ae rial platform may be driven within the fullrangeof drive

9-2 S1930 – 0361266

Platform

Use care when enter ing and exiting the platform to avoid slipping and/or falling. Securely close the safety chainoroptional swinginggatewhen the platformisoc cupied.

Page 37

Chapter 9. Operation

Raising and Lowering

The raise speed is proportional to the joystick position. Thefartherthejoystickismoved, thefastertheplatform raises.There is only one lowering speed.

1. Place the drive/lift selector switch (refer to Figure

9.2) in the lift position.

2. Squeeze and hold the interlock switch against the joystick.

●

To raisethe platform,slowly pullthe joystickback until the desired speed is reached.

●

To lower the platform, slowly push the joystick forward.

Extending

The platform can be extended and securely lockedinto sevendifferentpositions.Usethefollowingprocedureto extend or retract the platform.

1. Stand on the non-extendible part of the platform floor, facing the front of the platform.

2. Remove the snapper pin and push on the handles (refer to Figure 9.3) to extend the deck.

Handles

Brakes

Each rear wheel is equipped with a mechanical spring-applied, hydraulically released parking brake. When the drive control is in neutral, a spring-activated pin(refertoFigure 9.4)protrudesthroughan openingin thebrakediscto preventmovement.Aflowcontrolvalve slows the pin movement to allow the aerial platform to stop before the parking brakes engage.

Brake Pins

Figure 9.4—Mechanical Brake

This system operates automatically to stop and hold the aerial platform when the drive controls are released or power is interrupted.Manually disengage the brakes before towing or winching the aerial platf orm as described under T o wing in Chapter 11—Emergency Operation.

Swing-Out Trays

Batteries and hydraulic components are enclosed in swing-outtrays(refer to Figure 9.5) on each side ofthe chassis.

Figure 9.3—Platform Extend Handle

3. Replace the snapper pin when the platform is ex tended.

4. Try tomovetherailsbackandforthtomakesurethe platform extension deck is locked in position.

S1930 – 0361266 9-3

Latch

Figure 9.5—Swing-Out Tray

The tray on the right side of the chassis contains the lower controls, the hydraulic directional control valve, the pump, free-wheeling valve, and the hydraulic fluid filter.Thetrayon the leftsidecontainsthe four batteries and the battery charger.

Tray

Page 38

Chapter 9. Operation

ADANGER

The aerialplatformcan tip over ifitbecomesunsta ble. Death or serious injury can result from a tip-over accident. Do not open the trays when the platform is raised more than eight feet.

To open a tray, pull outward on the latch and swing the tray open.

Electrical Power Outlet

The electrical power outlet has two, 3-prong, 125 volt AC electrical connectors (refer to Figure 9.6). Their combinedoutput islimited bya20ampcircuitbreaker.

Figure 9.6—Electrical Power Outlet

Power is supplied to the outlet by connecting an external power source to the power-input connector at the rear of the chassis (refer to Figure 9.7).

Power-Input Connector

Figure 9.7—Power-Input Connector

To use the outlet, plug a source of power into the power-inputconnector.Unplug the source of power be fore moving the aerial platform.

9-4 S1930 – 0361266

Page 39

Chapter 10. Stowing and Transporting

To prevent unauthorized use and damage, properly stow the aerial platform at the end of each work day. It must also be properly stowed while transporting.

Stowing

Use the following procedure to properly stowthe aerial platform.

1. Retract the platform extension.

2. Fully lower the platform.

3. Push the emergency stop button in.

4. Turn the battery disconnect switch off and lock it.

5. Securely close the swing-out trays.

Transpor ting

The aerial platform may be moved on a transport vehi cle. Depending on the particular situation, the aerial platform maybeliftedwithaforklift, winched, driven, or hoisted onto a vehicle such as a truck or trailer. Lifting with a forklift is the preferred method.

The equipment used to load,unload, and transport the aerial platformmusthaveadequatecapacity.Thegross vehicle weight is listed in Chapter 2 and is stamped on the serial number placard.

The user assumes all responsibility for choosing the proper method of transportation, and the proper selection and use of transportation and tie-down devices, making suretheequipmentusedis capable of supporting the weight of the aerial platform and that all manufacturer’s instructions and warnings, regulations and safetyrulesoftheir employer,theDOT and/oranyother state or federal law are followed.

Lifting With a Forklift

Use the following procedure to lift the aerial platform with a forklift.

1. Properly stow the aerial platform.

2. Remove all personnel, tools, mater ials, or other loose objects from the platform.

3. Insert the forklift forks into the pockets(referto Figure

10.1) or at the designated points under the pothole protector skids to lift the machine.

Forklift Pockets

Figure 10.1—Forklift Pockets

4. Donotraisethe aerialplatformhigherthannecessary

to transport it. Drive the forklift slowly and carefully when transporting the aerial platform.

Winching

Usethefollowingprocedureto winchthe aerial platform onto the transport vehicle.

1. Position the transport vehiclesotheaerialplatform will not roll forward after it is loaded.

2. Remove anyunnecessarytools, materials,orother loose objects from the platform.

3. Drive the machine to the foot of the loading ramp with the front wheels nearest the ramp. Make sure themachineiscenteredwiththerampsandthat the steering wheels are straight.

4. Properly stow the aerial platform.

ADANGER

The aerial platformisfreetomovewhen the brakes are released. Death or serious injury can result. Re-enable the brakes before operating the aerial platform.

Use a 90° (refertoFigure 10.2).Rotatethecamonthe right brake cylinder counterclockwise and the one on the leftbrakecylinderclockwise.Thiswill retractthebrake pins from the wheel lugs releasing the brakes. Re move the wrench.

/8″ wrench to rotate each brake release cam

S1930 – 0361266 10 - 1

Page 40

Chapter 10. Stowing and Transporting

Driving

Brake Cams

Figure 10.2—Brake Release Cams

6. Unlatchand swingoutthehydraulictrayontheright side of the chassis. The free-wheeling valve is lo cated on the hydraulic manifold (refer to Figure

10.3). Turn the free-wheeling valve counterclock wise to a fully opened position.

Free-Wheeling Valve

Figure 10.3—Free-Wheeling Valve

7. Attach the winch to the tie-down lugs (refer to Fig ure 10.4) on the front of the chassis.

ADANGER

The aerialplatformcan tip over ifitbecomesunsta ble. Death or serious injury can result from a tip-over accident. Do not drive on ramps that ex ceed 20 percent grade, or where conditions of the ramp could cause driving to be hazardous.

Use a winch to load and unload the aerial platform on ramps that exceed 20 percent grade. A 20 percent gradeisa 24″ (61 cm)verticalrisein10′(3.05 cm) hori zontallength.A winchmayalsobeusedwhenpoortrac tion, uneven surfaces, or stepped ramp transitions make driving hazardous.

Drive the aerial platform onto the transport vehicle if a

winch is not available and the ramp incline iswithin the 20 percent grade capability of the aerial platform

Use the followingprocedureto drive the aerial platform

onto the transport vehicle.

1. Position the transport vehiclesotheaerialplatform will not roll forward after it is loaded.

2. Chock the vehicle wheels so it cannot roll away from the ramp while the aerial platform is loaded.

3. Remove anyunnecessarytools, materials,orother loose objects from the platform.

4. Retract the platform extension and fully lower the platform.

5. Drive the aerial platform to the foot of the loading ramp with the front wheels nearest the ramp.Make sure the aerial platform is centered with the ramps and that the steering wheels are straight.

6. Placethejoystick in high forclimbingaramp or low

for descending a ramp.

7. Drivethe aerialplatform onor offthetransport vehi cle in a straight line through the grade transitions with minimal turning.

Lifting Lugs

Hoisting

Usea fourpoint slingarrangementattachedto thelifting lugs when hoisting the aerial platform. Machine dam age can occur if the sling is attached to the chassis, scissors structure, or platform.

ADANGER

The potential for an accident increases when the

Tie-Down Lugs

Figure 10.4—Tie-Down and Lifting Lugs

8. Usethewinchtopositiontheaerial platformonthe transport vehicle.

9. Close the free-wheeling valve.

10. Use a wrench to manually reset the parking brakes .

10 - 2 S1930 – 0361266

aerial platform is lifted using improper equipment and/or lifting techniques. Death or serious injury can result from such accidents. Use proper equip ment and lifting techniques when lifting the aerial platform.

Page 41

Chapter 10. Stowing and Transporting

Know the weightof the aerial platform and the capacity of the lifting devices before hoisting. Lifting devices in clude the hoist or crane, chains, straps, cables, hooks, sheaves,shackles,slings, and other hardwareused to support the machine. The gross vehicle weight is stamped on the serial number placard and is listed in Chapter 2.

The userassumesallresponsibility for making surethe equipment used is capable of supporting the weight of the aerial platform and that all manufacturer’s instruc tionsandwarnings, regulationsandsafety rulesoftheir employer and/or any state or federal law are followed.

Use the following procedure to hoist the aerial platform onto the transport vehicle.

1. Properly stow the aerial platform.

2. Inspectthe liftinglugs(refertoFigure 10.4)tomake sure they are free of cracks, rust, and are in good condition. There are two lugs on the rear of the chassis and two on the front.Have any damage re paired by a qualified service technician before at tempting to hoist the machine.

3. Remove all personnel, tools, mater ials, or other loose objects from the platform.

4. Connectthe chainsorstrapstotheliftinglugs using bolted shackles. Hooks that fit properly in the lugs andthat havelatchingmechanismstopreventthem from falling out under a slack line condition may also be used.

Do not run the sling cable through the lifting lugs. Cabledamage and/orfailurecanresultfrom thecable contacting the sharp corners of the lift lug. Thereisnoeffectivewayofputtinga corner protector in the hole of the lug.

5. Use spreader bars of sufficient length to keep the

chains, straps, or cables from contacting the scis sors structure or platform.When using cables,use rigid corner protectors at anypointwherethe cable contactsonsharpcornersto preventdamagingthe cable.Careful rigging of the spreaders is required to prevent machine damage.

6. Usethehoistorcranetocarefullyraiseandposition the aerial platform onto the transport vehicle.

Securing for Transport

Use the following procedure to secure the aerial plat form on the transport vehicle.

1. Chock the wheels.

2. Remove all personnel, tools, mater ials, or other loose objects from the platform.

3. Properly stow the aerial platform.

4. Place wood blocks under the front ends of the pot hole protection skids to limit excessive loading on the front drive wheel bearings.

5. Place the lower controls emergency stop switch in the off position.

6. Turn the battery disconnect switch off.

ACAUTION

Ratchets, winches, and come-alongs can produce enough force to damage machine components. Do notovertighten thestrapsor chainswhen securing the aerial platform to the transport vehicle.

7. Use chains or straps to securely fasten the aerial platform to the transport vehicle using the front and rear tie-down lugs as attachment points. Proper tie-down and hauling is the responsibilityof the car rier.

S1930 – 0361266 10 - 3

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Chapter 11. Emergency Operation

Iftheaer ial platform cannotbeoperated duetoa lossof hydraulicpower,suchasmotororpump failure,theplat form lift cylinder and drive wheels may be operated manually. Refer to the Emergency Lowering or Towing section for the appropriate procedure.

Emergency Lowering

Use the following procedure to lower the platform.

1. Retract the platform extension, if possible.

2. Locatetheemergencylo weringleverattherearofthe aerial platform (refer to Figure 11.1).

Emergency Lowering Lever

4. Unlatch and swing out the hydraulic tray. The

Use a 90°(refertoFigure11.2).Rotatethecamon theright brake cylinder counterclockwise and the one on the left brake cylinder clockwise.Remo ve the wrench.

free-wheeling valve is located on the hydraulic manifold (refer to Figure 11.3). Turn the free-wheeling valve counterclockwise to a fully opened position. Close the tray.

/8″ wrench to rotate each brakerelease cam

Brake Cams

Figure 11.2—Brake Release Cam

Figure 11.1—Emergency Lowering Lever

3. Makesurethereisnothinginthewaytoobstructthe platform when it lowers.

ADANGER

Pinchpointsexist onthe scissorsstructure.Death or serious injury can result from becoming trapped within the scissors structure. Make sure all personnel stand clear while lowering the plat form with the emergency lowering lever.

4. Pushthelever downtolowerthe platform. Release the lever to stop.

Towing

Theaerialplatformmaybepushedorpulledafterdisen gaging thebrakes.Use the followingprocedureto man ually disengage the brakes.

1. Restrain the aerial platform to prevent movement when the brakes are released.

2. Turn the battery disconnect switch off.

ADANGER

The aerial platformisfreetomovewhen the brakes and free-wheelingvalveare disabled. Deathorseri ous injury can result. Restrain the aerial platform before disengaging the brakes and opening the free-wheeling valve.

Free-Wheeling Valve

Figure 11.3—Free-Wheeling Valve

5. Do not exceed 2 mph (3.2 km/h) when towing.

The aerial platformisfreetomovewhen the brakes and free-wheelingvalveare disabled. Deathorseri ous injury can result.Close the free-wheeling valve and reset the brakes before operating the aerial platform.

6. Close the free-wheeling valve after moving the ae rial platform.

7. Manually reset the parking brakes using a wrench or drive the aerial platform to reset them.

8. Verify that the drive system and brakes operate properly.

ADANGER

S1930 – 0361266 11 - 1

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Page 45

Chapter 12. Troubleshooting

The troubleshooting chart may be used to locate and eliminate situations where machine operation may be interrupted.Iftheproblemcannotbecorrectedwiththe

action listed, stow the machine andremoveit from ser vice. Repairs must be made by qualified maintenance personnel.

Troubleshooting Chart

Symptom Possible Cause Corrective Action

All functions stop working. Motor or pump failure.

Low fluid level in reservoir.

Electrical system malfunction.

Platform will not raise or lower from lower controls.

Upper controls will not work.

Control selector switch in the upper control position.

Battery disconnect switch turned off. Emergency stop button pushed inward

to the off position. Emergency lowering lever not properly

disengaged. Control selector switch in the lower

control position.

Manually stow the machine. Check fluid level. Add correct type of

fluid if necessary. Stow the machine and do not operate

until repairs are made. Place switch in the lower control

position. Place switch in the on position. Pull the emergency stop button outward

to the on position. Ensure lever returns to normal

operating position. Place switch in the upper control

position.

Battery disconnect switch turned off. Emergency stop button pushed inward

to the off position.

Platform will not raise or lower from upper controls.

Platform will not raise and alarm is sounding.

Platform drifts down. Emergency lowering lever not properly

Platform will not lower. Safety prop in place. Stow the safety prop. Platform will not extend. Latch pin still in place. Remove latch pin before extending the

Drive/lift selector is in the drive position. Emergency lowering lever not properly

disengaged. Machine is not on a level surface. Lower the platform and drive to a level

disengaged. Hydraulic system malfunction.

Place switch in the on position. Pull the emergency stop button outward

to the on position. Place switch in the lift position.

Ensure lever returns to normal operating position.

surface. Ensure lever returns to normal

operating position. Stow the machine and do not operate

until repairs are made.

platform.

S1930 – 0361266 12 - 1

Page 46

Chapter 12. Troubleshooting

Symptom Possible Cause Corrective Action

Drive functions don’t work.

Drive/lift selector is in the lift position. Machine is not on a level surface or too

steep a grade.

Place the switch in the drive position. Lower the platform and drive to a level

surface. Free-wheeling valve is open. Load capacity exceeded.

Low hydraulic system pressure.

Only slow drive speed works.

Machine will not steer. Joystick interlock switch not engaged. Engage the interlock switch before

Electrical outlet does not work.

Wheels won’t turn when winching or pushing.

Brakes don’t work. Brake pins not engaged. Manually release brake cams with a

Tilt alarm does not work. Platform is not raised more

Ammeter does not indicate a reading when charging the batteries.

Hydraulic fluid temperature of 160°F (71°C) or more.

Platform elevated above 6′ (1.8 m).

Power supply not plugged in.

GFCI is tripped. Brake pins engaged.

Free-wheeling valve closed.

than 6′ (1.8 m).

No source of power.

Charger power fuse is blown.

Prolonged dr iving or platform operation. High pressure fluid return to reservoir

caused by kinked or twisted hose.

Fully close the free-wheeling valve.

Remove load from platform. Refer to

platform capacity placard for maximum

capacity.

Stow the machine and do not operate

until repairs are made.

Lower platform to drive machine at

faster speed.

operating the steer switch.

Plug a source of power into the

power-input connector at front of

chassis.

Push reset button on outlet.

Rotate brake release cams to

disengage brakes.

Fully open free-wheeling valve.

wrench or drive the machine to reset

the brakes.

Normal operation.The tilt alarm is not

active until the platform is raised more

than 6′ (1.8 m).

Make sure power source is plugged in

and turned on.

Stow the machine and do not operate

until repairs are made.

Stop operation until fluid cools.

Remove the kink or twist from the hose.

Let fluid cool before resuming

operation. Hydraulic system component failure.

Severe hydraulic leak. Failure of hose, tube, fitting, seal, etc. Stow the machine and do not operate

12 - 2 S1930 – 0361266

Stow the machine and do not operate

until repairs are made.

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Appendix A. Glossary

aerialplatform—a mobiledevicethat hasan adjustableposi

tion platform, supported from ground level by a structure. authorized personnel—personnel approvedasassignedto

perform specific duties at a specific location. base—the relevant contact points of the aerial platform that

form the stability support (e.g. wheels, casters, outriggers, stabilizers).

battery tray—aswing-outcompartmentthat holdsthe batter ies and the battery charger.

center of gravity—the point in the aerial platform around which its weight is evenly balanced.

chassis—theintegralpart of theaerial platform thatprovides mobility and support for the scissors structure.

fallrestraint—a systemthat isused whileworkingon aboom lift within the boundaries of platform guardrails to providere straint from being projected upward from the platform. This system includesaharnessorbelt, lanyard, andalanyard an chor.Althoughfederal regulations,OSHA, ANSI,andSnorkel do not require the use of fall protection beyond the platform guardrails on scissorsliftaer ial platforms, local, state, oremployer rules may require their use.

floor or ground pressure—the maximum pressure, expressed in pounds per square inch, a single wheel concentrates on the floor or ground.

free-wheeling valve—a needle valve that when adjusted openallows hydraulicfluidtoflowthrough thewheel drivemotors. This allows the aerial platform to be pushed or towed without damage to the drive motors.

gradeability—the maximum slope that the aerial platform is capable of travel.

groundfault circuitinterrupter(GFCI)—a fast-actingcircuit breaker that opens to stop electrical circuit flow if it senses a verysmall currentleakagetoground.TheGFCIisusedto pro tectpersonnelagainstapotential shockhazardfromdefective electrical tools or wiring.

guardrail system—a vertical barrier around the platform to prevent personnel from falling.

hazardous location—any location that contains, or has the potentialto contain,anexplosiveorflammableatmosphereas defined by ANSI/NFPA 505.

hydraulic tray—a swing-out compartment that holds the

electricalpanelforthe lowercontrols,the hydraulicdirectional control valve, the free-wheeling valve,the pump,and the hy draulic fluid filter.

lowercontrols—thecontrolslocatedatgroundlevelfor oper ating some or all of the functions of the aerial platform.

maximum travel height—the maximum platform height or the most adverse configuration(s) with respect to stability in

which travel is per mitted by the manufacturer.

maximum wheelload—the load or weightthatcan be trans mitted through a single wheel to the floor or ground.

Minimum SafeApproach Distance—theminimumsafe dis tancethat electricalconductorsmaybe approachedwhen us ing the aerial platform. Also called M.S.A.D.

operation—the performance ofanyaerial platform functions

within the scope of its specifications and in accordance with

the manufacturer’sinstructions, the users work rules, and all

applicable governmental regulations.

personal fall arrestsystem—a fall protection system that is used while working on an unprotected edge (such as a roof top with no guardrail). This system includes a harness, lanyard orother connecting device, afall arrestor,an energy absorber ordecelerator, ananchorageconnector, and asecure anchorage such as a building beam, girders or columns. An aerial platform is not a fall arrest anchorage.

platform—theportionofan aerialplatform intended tobe occupied by personnel with their tools and materials.

platform height—the vertical distance measured from the floor of the platform to the surface upon which the chassis is being suppor ted.

qualified person—a person, who by reason of knowledge, experience,ortraining is familiarwith the operationto be per formed and the hazards involved.

rated work load—the designed carrying capacity of the ae rial platform as specified by the manufacturer.

stow—to placeacomponent, such as the platform,inits rest position.

unrestricted rated workload—the maximum designed car rying capacity of the aerial platform allowed by the manufac turer in all operating configurations.

upper controls—the controls located on or beside the plat form usedforoperating some or allofthe functions of the ae rial platform.

S1930 – 0361266

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Page 49

Index

additional information, 1-2 aerial platform stability, 8-4 ambient air temperature operating range, 2-2 American National Standards Institute

(ANSI), 1-1, 3-1 ammeter, 5-1, 6-1 ANSI/NFPA 505, 3-2

batteries, 6-1, 8-1

battery charger, 6-1, 8-1

battery disconnect switch, 6-1, 9-1

cable ends, 8-1

charging, 3-3, 6-1

disconnect switch, 8-4

distilled water, 6-1, 8-1

general maintenance, 6-1

terminals, 8-1

water level, 6-1, 8-1 battery condition indicator, 7-2 battery disconnect switch, 7-1 brakes

brake disc, 9-3

brake pin, 9-3

disengaging, 9-3

release cam, 8-4

cables and wiring harness, 8-2 Canadian Standards Association

(CSA), 1-1 chassis controls, 7-1

battery disconnect switch, 7-1 component identification, 2-1

DC electr ical motor, 8-2 drive motion alarm, 8-8 drive speed, 2-2 drive speeds, 9-2 drive system, 2-2 drive/lift level sensor, 2-2 drive/lift level sensor interlock, 4-2, 9-2 drive/lift pothole protector interlock, 4-2 drive/lift selector switch, 7-2 driving, 9-2

joystick, 9-2

transporting, 10-1

electrical hazard

see inside front cover electrical power outlet, 4-3, 8-8, 9-4

accidental conductor grounding, 4-3

ground fault circuit interrupter, 4-3 electrical system, 2-2, 3-3, 8-1

battery terminals, 8-1

electrocution hazards, 3-1

minimum safe approach distance, 3-1 emergency lowering knob, 4-2 emergency operation

emergency lowering, 8-6, 11-1

lowering lever, 8-6, 11-1

towing, 11-1 emergency stop controls, 4-1

lower controls, 4-1, 8-4

upper controls, 4-1, 8-7 engine protection systems, 4-3

fasteners, 8-7 flashing light, 4-3, 8-6 free-wheeling valve, 8-3, 11-1

closing, 8-3 function speed, 2-2

general specifications, 2-2 ground clearance, 4-1, 8-5 ground fault circuit interrupter

reset button, 8-8

test button, 8-8 ground strap, 8-4 guardrail system, 4-3, 8-7

entry chain, 8-7

gravity gate, 4-3

mid rail, 4-3, 8-7

swinging gate, 4-3, 8-7

toeboards, 4-3, 8-7

top rail, 4-3, 8-7

hazardous (classified) location, 3-2

ANSI/NFPA 505, 3-2 hoisting

lifting devices, 10-3

lifting lugs, 10-3

sling cable, 10-3

spreader bars, 10-3

user responsibility, 10-3 horn, 4-3

button, 7-2 hoses, tubes, and fittings, 8-3

routing, 8-3 hour meter, 5-1 hydraulic system, 2-2, 3-3, 8-2

fluid level, 8-3

hydraulic pump, 8-2

interlock, 8-7, 9-2

S1930 – 0361266

Page 50

Index

joystick

driving, 7-2, 9-2 platform raise and lower, 7-2, 9-3

level sensor, 8-5

testing, 8-5 loss of hydraulic power, 11-1 lower control station, 8-4

lower controls, 7-1, 8-4 lower controls, 8-4, 9-1 lowering alarm, 8-4, 8-8

maintenance, 1-2 manual of responsibilities, 1-2

copies, 1-2

employer, 1-2

owners, 1-2

users, 1-2 minimum safe approach distance, 3-1

see inside front cover

notes, 1-1

Occupational Safety and Health Administration

(OSHA), 1-1

operation, 1-2, 3-2, 9-1

driving, 9-2

lower controls, 9-1

platform, 9-2

preparing for operation, 9-1

steering, 9-2

swing-out tray, 9-3 operator’s manual, 1-1, 3-1

manual holder, 8-1

notes, 1-1

part number, 1-1

safety alerts, 1-1 operators, 1-2

responsibility, 1-2, 3-1, 9-1

training, 1-2 options, 1-1

battery condition indicator, 7-2, 8-8

flashing light, 4-3, 8-6

horn, 4-3, 7-2, 8-8

platform, 2-2

swinging gate, 8-7

swinging platform gate, 4-3

capacity, 3-3 extend handle, 9-3 extension, 8-7 guardrail height, 2-2 guardrail system, 4-3

mid rail, 4-3 swinging gate, 4-3 toeboards, 4-3 top rail, 4-3

guardrails, 3-3 maximum number of occupants, 2-2 raising and lowering, 9-3 rated work load, 2-2, 9-1 rotation, 2-2 transfer from, 3-3

pothole protector

interlock, 8-5 interlock test, 8-5

skids, 4-1 preparing for operation, 9-1, 9-2 prestart inspection, 1-2, 3-2, 8-1, 9-1

check list, 8-11

reservoir, 8-3

fluid level, 8-3

safety alerts, 1-1, 3-1

caution, 1-1

danger, 1-1

safety alert symbol, 1-1 safety devices, 3-1, 4-1

defective, 4-1 safety related placards and decals, 8-9 Scaffold Industry Association, 1-2, 3-1

ANSI/SIA A92.5, 3-1 scissors arm rollers, 8-6 slide blocks, 8-6 steering, 9-2 stowed length, 2-2 stowed width, 2-2 stowing safety prop, 8-2 stowing work platform, 10-1 structures, 8-6

fasteners, 8-7

platform slide blocks, 8-7

scissors arm slide blocks, 8-6

weldments, 8-6 swinging gate, 8-7 swinging platform gate, 4-3 swing-out tray, 8-1, 9-3

parking brakes, 8-4 personal fall arrest, 3-3 placards and decals, 3-3, 8-9

cleaning, 8-9 safety related, 8-9

platform, 2-2, 3-2, 3-3, 8-7, 9-2, 10-1, 11-1

tie-down lugs, 10-2 tilt alarm, 4-3 tip-over and falling hazards, 3-2 tires, 8-4 towing, 11-1 transporting, 10-1

S1930 – 0361266

Page 51

Index

driving, 10-2 hoisting, 10-2 lifting with a forklift, 10-1 securing, 10-3 user responsibility, 10-1 winching, 10-1

turntable rotation, 2-2

upper controls, 7-2, 8-7, 9-1

warranty

see inside back cover wheel lug nuts, 8-4 wheelbase, 2-2 windy or gusty conditions, 3-3 work place inspection and practices, 3-2

S1930 – 0361266

Page 52

Page 53

LIMITED WARRANTY

Snorkel warrantseachnew machine manufactured andsoldby it to be free fromdefects in material and workmanshipfora periodof one(1)yearfrom dateofdelivery toaCustomer orforone yearafterthe machinehasbeen placedinfirstserviceina Dealerrental fleet,whichevercomes first.Anypart orpartswhich, uponexaminationby theSnorkelServiceDepartment,are foundto be defective,will bereplacedor repaired, atthe sole discretionofSnorkel, through itslocal AuthorizedDealerat no charge.

Snorkelfurtherwarrants thestructural components;specifically,the mainframechassis, turntable,booms andscissor arms, of eachnew machinemanufactured byit to befree from defectsin material andworkmanship foranadditional period offour (4) years.Anysuch part or parts which,uponexamination bythe Snorkel Service Department, arefoundto be defective will bereplaced orrepairedbySnorkelthroughits localAuthorizedDealer atnocharge;however,any laborchargesincurredasa result of such replacement or repair will be the responsibility of the Customer or Dealer.

The SnorkelService Department mustbenotified within forty-eight (48) hours ofany possiblewarrantysituation during the applicable warranty period.Personnel performing warranty repair or replacement must obtain specificapproval by Snorkel Service Department prior to performing any warranty repair or replacement.

Customer and Dealer shall not be entitled to the benefits of thiswarrantyandSnorkelshall have no obligations hereunder unless the “Pre-Deliver y and Inspection Report” has been properly completed and returned to the Snorkel Service Department within ten (10) days afterdelivery of the Snorkel product to Customer orDealer’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 underthiswarrantyprogram mustbe returned freightprepaid tothe SnorkelServiceDepartmentfor inspection. All warranty replacement partswillbe shipped freightprepaid (standard ground)from the SnorkelServiceDepartmentorfrom 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 productwhichhas 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 Snorkelproduct which hasbeensubject to misuse,improper maintenance or accident.“Misuse”includes but isnot limited to operation beyond the factory-rated load capacity and speeds. “Improper maintenance” includes but is not limitedto failuretofollowthe recommendationscontainedin theSnorkelOperation, Maintenance,RepairParts Manuals. Snorkel is not responsiblefor normal maintenance, service adjustments and replacements, including but notlimitedto hydraulic fluid, filters and lubrication.

4. Normal wear of anySnorkelcomponent part(s). Normal wear ofcomponent partsmay vary withthetype 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 warrantyisexpresslyinlieu ofall otherwarranties, representationsor liabilitiesofSnorkel, eitherexpressed orimplied, unless otherwise amended in writing by Snorkel’s President, Vice President-Engineering, Vice President-Sales or Vice President-Marketing.

SNORKEL MAKESNOWARRANTIES WHICHEXTEND BEYOND THEDESCRIPTION OF THIS LIMITEDWARRANTY. SNORKEL MAKES NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR APARTICULARPURPOSE AND DISCLAIMS ALL LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO INJURY TO PERSONS OR PROPERTY.

The Customershallmake all warrantyclaimsthrough its local AuthorizedDealer and should contact theDealerfrom 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

Printed in USA

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