Snorkel ATB50 CE User Manual

Operator’s

Manual

engine powered

diesel

gasoline

LPG fuel

P/N 0161987EE August, 1998

LIMITED WARRANTY

Snorkel warrants each new machine manufactured and sold by it to be free from defects in material and workmanship for a period of one(1) year fromdate of delivery to a Customer or for one yearafter the machine has been placed in first servicein a Dealer rental fleet, whichever comesfirst. Any part or parts which, upon examination bythe Snorkel Service Department, are found to be defective, will be replaced or repaired, at the sole discretion of Snorkel, through its local Authorized Dealer at no charge.

Snorkel further warrants the structural components; specifically, the mainframe chassis, turntable, booms and scissor arms, of each new machine manufactured by it to be free from defects in material and workmanship for an additional period of four (4) years. Any such part or parts which, upon examination by the Snorkel Service Department, are found to be defective will be replaced orrepaired by Snorkel through its local AuthorizedDealer at nocharge; however, any laborcharges incurred as a result of such replacement or repair will be the responsibility of the Customer or Dealer.

The Snorkel Service Department must be notified within forty-eight (48) hours of any possible warranty situation during the applicable warranty period. Personnel performing warranty repair or replacement must obtain specific approval by Snorkel Service Department prior to performing any warranty repair or replacement.

Customer and Dealer shall not be entitled to the benefits of this warranty and Snorkel shall have no obligations hereunder unless the “Pre-Delivery and Inspection Report” has been properly completed and returned to the Snorkel Service Department within ten (10) days after delivery of the Snorkel product to Customer or Dealer’s rental fleet. Snorkel must be notified, in writing, within ten (10) days, of any machine sold to a Customer from a Dealer’s rental fleet during the warranty period.

At the direction of the Snorkel Service Department, any component part(s) of Snorkel products to be replaced or repaired under this warranty program must be returned freight prepaid to the Snorkel Service Department for inspection. All warranty replacement parts will be shipped freight prepaid (standard ground) from the Snorkel Service Department or from Snorkel’s Vendor to Dealer or Customer.

REPLACEMENT PARTS WARRANTY

Any replacement or service part made or sold by Snorkel is not subject to the preceding Limited Warranty beyond the normal warranty period of the machine upon which the part was installed.

THIS WARRANTY EXCLUDES AND SNORKEL DOES NOT WARRANT:

1. Engines, motors, tires and batteries which are manufactured by suppliers to Snorkel, who furnish their own warranty. Snorkel will, however, to the extent permitted,pass through any such warrantyprotection to theCustomer or Dealer.

2. Any Snorkel product which hasbeen modified or altered outside Snorkel’s factory withoutSnorkel’s written approval, if such modification or alteration, in the sole judgment of Snorkel’s Engineering and/or Service Departments, adversely affects the stability, reliability or service life of the Snorkel product or any component thereof.

3. Any Snorkel product which has been subject to misuse, improper maintenance or accident. “Misuse” includes but is not limited tooperation beyond the factory-rated load capacity and speeds. “Impropermaintenance” includes but is not limited to failure to follow the recommendations contained in the Snorkel Operation, Maintenance, Repair Parts Manuals. Snorkel is not responsible for normal maintenance, service adjustments andreplacements, including but not limited to hydraulic fluid, filters and lubrication.

4. Normal wear of any Snorkel component part(s). Normal wear of component parts mayvary with the type application or type of environment in which the machine may be used; such as, but not limited to sandblasting applications.

5. Any Snorkel product that has come in direct contact with any chemical or abrasive material.

6. Incidental or consequential expenses, losses, or damages related to any part or equipment failure, including but not limited to freight cost to transport the machine to a repair facility, downtime of the machine, lost time for workers, lost orders, lost rental revenue, lost profits or increased cost.

This warranty is expressly in lieu of all other warranties, representations or liabilities of Snorkel, either expressed or implied, unless otherwise amended in writing by Snorkel’s President, Vice President-Engineering, Vice President-Sales or Vice President-Marketing.

SNORKEL MAKES NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THIS LIMITED WARRANTY. SNORKEL MAKES NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND DISCLAIMS ALL LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO INJURY TO PERSONS OR PROPERTY.

The Customer shall make all warranty claims through its local Authorized Dealer and should contact the Dealer from whom the Snorkel product was purchased for warranty service. Or, if unable to contact the Dealer, contact the Snorkel Service Department for further assistance.

Effective July 1995

Electrical Hazard

Electrical Hazard Warning

THE SNORKELIFT AERIAL WORK PLATFORM

IS NOT ELECTRICALLY INSULATED.

If the platform, booms, or any other conductive part of a Snorkelift contacts a high-voltage electrical conductor, the result can be SERIOUS INJURY or DEATH for persons on or near the machine.

GO NO CLOSER THAN THE MINIMUM SAFE APPROACH DISTANCES

(M.S.A.D) - AS OUTLINED IN TABLE 1 AND FIGURE 3

ON THE NEXT PAGE.

Be sure to allow for sag and sway in the wires and the work platform.

If a Snorkelift comes in contact with a live electrical conductor, the entire machine can be charged.

If that happens, you should remain on the machine and not contact any other structure or object within reach. That includes the ground, adjacent buildings, poles, and any object not a part of the Snorkelift.

Such contact could make your body a conductor to the other object creating an electrical shock hazard resulting in SERIOUS INJURY or DEATH.

DO NOT attempt to enter or leave the Snorkelift until you are sure the electricity has been turned off.

If a Snorkelift is in contact with a live conductor, the platform operator MUST warn others on the ground in the vicinity of the Snorkelift to STAY AWAY from the machine, since their bodies can also form a path for electricity to ground thus creating an electrical shock hazard with possible ELECTROCUTION and

DEATH.

DO NOT attempt to operate the Snorkelift ground controls when the platform, booms, or any other

conducting part of a Snorkelift is in contact with electrical wires or if there is an immediate danger of such contact.

Regard all conductors as energized.

Personnel working on or near a Snorkelift must be continuously aware of electrical hazards, recognizing that SERIOUS INJURY or DEATH can result if contact with an electrical wire does occur.

ATB 42/50 – 0161987EE page - i

Electrical Hazard

Minimum Safe Approach Distance

The Snorkelift is an all metal boom, NOT ELECTRICALLY INSULATED, aerial work platform. DO NOT operate it near ELECTRICAL conductors. Regard all conductors as being energized. Use the table and illustration below to determine safe clearance from electrical conductors. (Table 1 and Figure 3, below, are from ANSI/SIA A92.5–1992 Standard, reprinted with permission of Scaffold Industry Association.)

Table 1 - (M.S.A.D.)

Minimum Safe Approach Distance

to energized (exposed or insulated power lines)

Voltage range Minimum safe approach distance

(phase to phase)

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

(Feet) (Meters)

Avoid contact

3.05

4.60

6.10

7.62

10.67

13.72

Figure 3 - (M.S.A.D.)

Denotes prohibited zone

Danger: - Do not allow machine personnel or conductive

materials inside prohibited zone.

- Maintain M.S.A.D. from all energized lines and parts as well as those shown.

- Assume all electrical parts and wires are energized unless known otherwise.

Caution:

page - ii ATB 42/50 – 0161987EE

- Diagrams shown are only for purposes of illustrating M.S.A.D. work positions, not all work positions.

Introduction

The most important chapter in this manual is "Safety" chapter 1. Take time, now, to study it closely. The information in chapter 1, might save your life or prevent serious injury.

Signs

The following three conventions are used throughout this manual.

1. Danger sign

ADANGER

means: Attention! Become alert! Your safety is involved.

2. Caution sign

ACAUTION

means one of two things: (1) an action, about to be performed, is potentially hazardous and might result in minor personal injury if not done correctly, or (2) an action, about to be performed, can harm the Snorkelift if not done correctly.

3. Note sign

NOTE

Before operating the Snorkelift you must be 18 years old and authorized by the person in charge to do so.

Operation Rules

The following rules will help ensure the safety of personnel and help prevent needless downtime because of damaged equipment.

1. Only TRAINED and AUTHORIZED operators shall be permitted to operate the equipment.

2. All manufacturer’s operating instructions and safety rules and all employers’ safety rules and all OSHA and other government safety rules must be strictly adhered to.

3. Repairs and adjustments shall be made only by QUALIFIED TRAINED maintenance personnel.

4. No modification shall be made to the equipment without prior written consent of the Snorkel Engineering Department.

5. You must make a pre-start inspection of the Snorkelift at the beginning of each shift. A malfunctioning machine must not be used.

6. You must make an inspection of the work place to locate possible hazards before operating the Snorkelift.

means: The information following is to assist you in either the proper steps to take for an action or as additional information concerning your present situation, but does not indicate a dangerous condition to either you or the Snorkelift.

Qualified Operators

The Snorkelift aerial platform has built in safety features and has been factory tested for compliance with Snorkel specifications and industry standards. However, any personnel lifting device can be potentially dangerous in the hands of untrained or careless operators.

Training is vitally important and MUST be done under the direction of a QUALIFIED person. You must display proficiency in knowledge and actual operation of the Snorkelift.

Before operation of the Snorkelift you must read and understand the operating instructions in this manual as well as the decals, warnings, and instructions on the machine itself.

Because options may vary, some figures may only be a representation of what is actually on the machine.

ADANGER

DO NOT operate this equipment unless you are TRAINED and AUTHORIZED and have read and thoroughly understand all of the operation and safety information given in this Operator’s Manual and on all DANGER and CAUTION signs on the machine. Misuse of this machine can result in DEATH or SERIOUS INJURY.

Maintenance

Every person who maintains, inspects, tests, or repairs these machines, and every person supervising any of these functions, MUST be properly trained.

This Operator’s Manual provides a daily inspection procedure that will help you keep your Snorkelift in good operating condition. DO NOT perform other maintenance unless you are a TRAINED mechanic, QUALIFIED to work on the Snorkelift. Call QUALIFIED maintenance personnel if you find problems or malfunctions.

DO NOT modify this machine without written approval from the Engineering Department of Snorkel.

Information contained in this manual concerns only current Snorkelift's, and the right is reserved to make changes at any time without obligation.

ATB 42/50 – 0161987EE page - iii

Introduction

Responsibilities of Parties

It is imperative that all owners and users of the Snorkelift read, understand, and conform to all applicable regulations. Ultimate compliance to OSHA regulations is the responsibility of the employer using the equipment.

ADANGER

ANSI Standard A92.5-1992 clearly identifies requirements of all parties who might be involved with Boom-Supported Elevating Work Platforms.

A reprint of the “Manual of Responsibilities for Dealers, Owners, Users, Operators, Lessors and Lessees of ANSI/SIA A92.5-1992 Boom Supported Elevating Work Platforms” is available from Snorkel dealers or from the factory upon request.

Copies are also available from the Scaffold Industry Association, Inc., 14039 Sherman Way, Van Nuys, CA 91405-2599.

Options

The use of optional equipment is discussed in the “Options” chapter 11.

The options you will find discussed there are:

1. Motion warning alarms.

2. Battery (extra).

3. Cold weather start kit.

4. Dual fuel.

5. Flashing lights.

6. Platform work lights.

7. LPS rating.

8. Sandblast protection kit.

9. Spark arrestor.

10. Platform swinging gate.

11. Optional 14 x 17.5 tires.

12. Tow kit.

13. 4-wheel drive functions.

Machinery Directive Standard

The Snorkelift is a boom-supported elevating work platform built to conform to Machinery Directive 89/392/EEC.

Additional Information

For additional information, contact your local dealer, call the Snorkel Service Department, or write:

Snorkel P.O. Box 1160 St. Joseph, MO 64502-1160 USA

page - iv ATB 42/50 – 0161987EE

Electrical Hazard

Electrical Hazard Warning ..................i

Minimum Safe Approach Distance ...........ii

Table 1 - (M.S.A.D.) .....................ii

Figure 3 - (M.S.A.D.).....................ii

Introduction

Signs..................................iii

Qualified Operators ......................iii

Operation Rules .........................iii

Maintenance............................iii

Responsibilities of Parties .................iv

Machinery Directive Standard ..............iv

Options................................iv

Additional Information ....................iv

1. Safety

Safe Operation ........................1-1

Pre-Start Inspection....................1-1

Work Place Inspection and Practices ......1-1

Electrocution .........................1-2

Tipover and Falling Hazards .............1-2

Table 1–Allowed Ground Density .........1-2

Table 2–Beauford Scale and Wind Speed . . 1-3

Crushing ............................1-3

General Safety Precautions...............1-3

Personnel Precautions .................1-3

Operator General Precautions ...........1-3

Mounting and Dismounting Precautions ....1-3

Starting and Stopping Precautions ........1-3

Operating Precautions .................1-3

Operator Maintenance Precautions .......1-3

Fuel Handling Precautions ..............1-4

Safety Placards and Decals ..............1-4

Safety Placards and Decals Location .......1-5

2. Safety Devices

Safety Device Information ................2-1

Alarms ...............................2-1

Start-Up Alarm........................2-1

Engine Shut-Off Alarm .................2-2

Alternator Not Charging Alarm ...........2-2

Axle Unlocked Alarm...................2-2

Tilt Alarm ...........................2-3

All Motion Alarm ......................2-3

Descending Boom Alarm ...............2-3

Drive Motion Alarm ....................2-3

Other Safety Devices....................2-3

Battery ..............................2-3

Emergency Stop Switches ..............2-4

Flashing Lights .......................2-4

Foam Filled Tires......................2-5

Platform Foot Switch ...................2-5

Lanyard Anchor Points .................2-5

Platform Guardrails ....................2-5

Platform Gravity Gate ..................2-6

Ground Operation Switch ...............2-6

Operator Horn ........................2-6

Level Sensor .........................2-7

Platform Swinging Gate ................2-7

Platform Work Lights...................2-7

Tipover Hazard Light...................2-8

3. Specifications

General Specifications...................3-1

Engine Oil Charts ......................3-2

EngineData...........................3-2

Overall Dimensions - ATB 42 .............3-3

Working Envelope - ATB 42 ..............3-4

Overall Dimensions - ATB 50 .............3-5

Working Envelope - ATB 50 ..............3-6

Nomenclature and Serial Numbers .........3-7

Right Side View Of Machine .............3-7

Booms Identification ...................3-7

Left Side View Of Machine ..............3-8

Serial Number Location.................3-8

ATB 42/50 – 0161987EE page - v

Table of Contents

4. Gauges

Ammeter .............................4-1

Engine Coolant ........................4-1

EngineOil ............................4-1

GasEngine..........................4-1

Diesel Engine ........................4-1

Engine Oil Dipstick ....................4-2

Filter Minder...........................4-2

Filter Minder Indicators .................4-2

Fuel .................................4-2

LPG (Liquefied Petroleum Gas) ...........4-3

Hour Meter............................4-3

Hydraulic Oil Filter ......................4-3

Hydraulic Oil Level......................4-4

Hydraulic Oil Temperature................4-4

Temperature ..........................4-4

5. Automatic Shut-Offs and Circuit Breakers

Automatic Shut-Offs ....................5-1

Engine Temperature ...................5-1

Engine Oil Pressure ...................5-1

Circuit Breakers ........................5-2

6. Controls

Controls Description ....................6-1

Controls and Control Decals Locations.....6-1

Ground Control Box.....................6-2

Ground Control Box Controls ............6-3

Platform Control Box ....................6-4

Platform Control Box Controls............6-5

Platform Foot Switch ....................6-6

Battery Switch .........................6-6

7. Daily Inspection and Maintenance

Daily Inspection and Maintenance Table.....7-1

Engine Fuel Level ......................7-2

Fuel Tank Cap .........................7-2

Engine Oil Level .......................7-2

Gasoline Engine ......................7-2

Diesel Engine ........................7-3

Fuel Leaks ............................7-3

Gasoline Engine ......................7-3

Diesel Engine ........................7-3

Engine Coolant Level ...................7-3

Wiring Harnesses ......................7-4

Battery Terminals.......................7-4

Battery Fluid Level......................7-5

Hydraulic Oil Level......................7-5

Hydraulic Oil Leaks .....................7-5

Tires.................................7-6

Bolts and Fasteners.....................7-6

Structural Damage and Welds.............7-7

Lanyard Anchor Points ..................7-7

Platform Gravity Gate ...................7-8

Swinging Gate .........................7-8

Platform Guardrails .....................7-8

Flashing Lights ........................7-8

Air Filter ..............................7-9

Charging System .......................7-9

Ground Control Switches and Alarms ......7-9

Level Sensor .........................7-10

Emergency Power .....................7-10

Platform Box Switches and Alarms ........7-10

Operator Horn ........................7-11

Motion Warning Alarm ..................7-11

Platform Work Lights ...................7-11

Slide Pads (ATB 50 Only) ...............7-11

Axle Unlocked Alarm ...................7-12

Placards and Decals ...................7-13

Standard Placards and Decals ..........7-13

Optional Placards and Decals...........7-13

page - vi ATB 42/50 – 0161987EE

Table of Contents

8. Operation

Operating Procedures ...................8-1

Control Stations ........................8-1

Emergency Stopping ....................8-1

Operation Considerations ................8-2

Starting From Ground Control Box .........8-2

Starting From Platform Control Box.........8-4

Moving The Platform ....................8-5

From Ground Control Box ...............8-6

From Platform Control Box ..............8-6

Driving the ATB 42/50 ...................8-7

Forward and Reverse Drive .............8-7

Steering the ATB 42/50 ..................8-7

Steer Left and Right ...................8-7

4-Wheel Steer ........................8-7

4-Wheel Steer With Crab Steer...........8-8

Securing for Day .......................8-8

9. Emergency Operation

Emergency Operation Procedures .........9-1

Operation From Platform Control Box......9-1

Operation From Ground Control Box ......9-2

12. Operator's Troubleshooting

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

10. Stowing and Transporting

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

To Lock the ATB 42/50: ................10-1

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

Trailering ...........................10-1

Securing to a Transport Vehicle .........10-2

Towing ..............................10-4

Lifting ...............................10-4

11. Options

Air Line To Platform ....................11-1

Alarms ..............................11-1

Extra Battery .........................11-1

Cold Weather Start Kit ..................11-1

Dual Fuel ............................11-1

Lights ...............................11-1

LPS Rating...........................11-2

Sandblast Protection Kit ................11-2

Spark Arrestor ........................11-2

Platform Swinging Gate .................11-2

Tires ................................11-3

Highway or Bar Lug...................11-3

Foam Filled Tires.....................11-3

Large Tires..........................11-3

TowKit..............................11-3

Towing Procedures ...................11-3

4-Wheel Functions.....................11-4

4-Wheel Drive .......................11-4

4-Wheel Steer .......................11-4

4-Wheel Steer With Crab Steer ..........11-4

ATB 42/50 – 0161987EE page - vii

Safe Operation

The following safety information is vitally important for safe operation of the ATB 42/50. Failure to follow these instructions can result in personal injury or DEATH.

Pre-Start Inspection

At the start of each work shift, the ATB 42/50 shall be given a visual inspection and function test. See the “Daily Inspection and Maintenance” chapter 7, for a list of items to inspect and test.

ACAUTION

DO NOT operate the ATB 42/50 unless you

are trained and authorized, understand the

operation characteristics of the ATB 42/50,

and have inspected and tested all functions to

be sure they are in proper working order.

Work Place Inspection and Practices

Do not use the ATB 42/50 as a ground for welding. Ground to the work piece.

Before the ATB 42/50 is used, and during use, check the area in which the ATB 42/50 is to be used for possible hazards such as, but not limited to:

1. Drop-offs or holes.

2. Side slopes.

3. Bumps and floor obstructions.

4. Debris.

5. Overhead obstructions and electrical conductors.

6. Hazardous locations.

7. Inadequate surface and support to withstand all load forces imposed by the aerial platform in all operating configurations.

8. Wind and weather conditions.

9. Presence of unauthorized persons.

10. Other possible unsafe conditions.

Before the ATB 42/50 is used, determine the hazard classification of any particular atmosphere or location according to ANSI/NFPA 505-1987.

Any ATB 42/50 operated in a hazardous location must be approved and of the type required by ANSI/NFPA 505-1987.

1. Safety

A recommended safety practice is to have personnel that are trained in the operation of the emergency controls working in the immediate area of the ATB 42/50 to assist the platform operator in the event of an emergency.

When moving the platform, check the clearance around the ATB 42/50 to avoid contact with structures or other hazards. Always look in the direction of motion.

Keep ground personnel from under the platform when the platform is raised.

Secure all accessories, containers, tools, and other materials in the platform to prevent them from accidentally falling or being kicked off the platform.

DO NOT engage in any form of “horseplay” or “stunt driving” while operating the ATB 42/50.

DO NOT permit riders on the machine anyplace other than on the platform.

Remove all loose objects stored in or on the machine, particularly in the platform. Remove all objects which do not belong in or on the machine.

When other moving equipment is in the area, take special precautions to comply with local regulations regarding warnings.

Never steady the platform by positioning it against another platform.

DO NOT operate an ATB 42/50 that is not functioning properly, or has been damaged, until the machine has been repaired by a qualified maintenance person.

DO NOT operate an ATB 42/50 that does not have all its decals and placards attached and legible.

Drive the machine with care and at speeds compatible with conditions. Use extra caution when driving over rough ground, on slopes, and when turning.

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

Watch for bystanders and never allow anyone to be under, or to reach through, the machine and its equipment while operating.

Use the recommended transport device when loading the machine.

ATB 42/50 – 0161987EE page 1 - 1

1. Safety

Electrocution

The ATB 42/50 is an all metal boom, NON-INSULATED, aerial work platform. DO NOT operate it near ELECTRICAL conductors. Regard all conductors as being energized.

DO NOT operate outside during a thunderstorm.

Tipover and Falling Hazards

DO NOT operate the ATB 42/50 from a position on trucks, trailers, railway cars, floating vessels, scaffolds, or similar equipment unless the application is approved in writing by Snorkel.

If the platform or elevating assembly becomes caught, snagged, or otherwise prevented from normal motion by an adjacent structure or other obstacles such that control reversal does not free the platform, remove all personnel from the platform before attempts are made to free the platform using ground controls.

Under normal working conditions it is best not to transfer from the platform to another structure or vice versa, unless that is the safest way to do the job. Each situation must be judged separately taking the work environment into account. The following guidelines apply:

1. Where possible, place the work platform over a roof or walking structure to do the transfer.

2. Transfer your anchorage from one structure to another before you step across.

3. Remember, you might be departing the work platform to a structure where personal fall arrest is required.

4. DO NOT climb the rails. Use the entrance.

All platform occupants MUST wear and use fall restraint. Attach fall restraints to the platform lanyard anchor points.

Exceeding the maximum carrying load of 500 pounds (227 kg) on the platform as well as having more than two persons on the platform is prohibited.

DO NOT raise the boom if the ATB 42/50 is on soft ground. Operate the boom only on a firm surface capable of withstanding all load forces imposed by the aerial platform in all operating conditions, (see table 1).

Table 1–Allowed Ground Density

Types of Ground

(Excerpt from DIN 1054)

A) Poured out loosely

B) Natural ground, obviously unworked

1. Mud, turf, swamp

2. Nonbinding, settled, pressed or compacted

Fine to medium sand

Course sand to gravel

3. Bound ground

Muddy

Soft

Stiff

Medium to hard

Hard

4. Rough rocky terrain,unweathered location

Enclosed consecutive layers

Large masses in column form

daN/cm (kp/cm2)

0-1

1,5

2,0

0,4

1,0

2,0

4,0

Do Not carry loads from any point outside of the platform. Do not carry loads that extend beyond the platform guardrails without prior written consent from Snorkel.

Care shall be taken to prevent rope, electrical cords, and hoses, etc., from becoming entangled in the aerial platform.

Raise the platform only when the ATB 42/50 is on level ground.

Maintain a firm footing on the platform floor.

Exceeding the ATB 42/50 maximum height or maximum outreach by installing ladders, scaffoldings or similar devices on the platform is prohibited.

DO NOT jerk the controls. Move the controls slowly and deliberately to avoid jerky and erratic operation. Always stop the controls in the neutral, off, position before going in the opposite direction.

DO NOT use the boom for any purpose other than to position personnel, their tools, and materials.

Using the ATB 42/50 as a crane, hoist, or jack is prohibited.

DO NOT operate the ATB 42/50 in winds, or wind gusts, of 28 mph (45 km/h) or more, (see table

2).

page 1 - 2 ATB 42/50 – 0161987EE

1. Safety

Table 2–Beauford Scale and Wind Speed

Beauford

Degree

Description Wind

Speed

(Km/Hr)

Very light breeze

Light breeze

Fresh breeze

Strong wind

Very strong, stiff wind

12.2 to

19.4

19.8 to

28.4

28.8 to

38.5

38.9 to

49.7

50.0 to

61.6

Effect of Wind

Leaves and thin twigs move.

Dirt, paper and thin branches move.

Small leafy trees begin to sway. Sea caps start to build.

Sets strong branches in movement. Power lines whistle.

Moves entire trees. Strong resistance when walking into wind.

The installation of wind force-increasing parts at the platform or the booms is prohibited.

Deactivating the safety devices (e.g. tying down roller actuators on switches etc.) is prohibited. Such actions endanger the safety of persons on the platform and in the work area of the ATB 42/50.

Crushing

Always look in the direction of travel. Avoid overhead obstructions.

Never cover the floor grating or otherwise obstruct your view below.

Make sure the area below the platform is free of personnel before lowering.

General Safety Precautions

Personnel Precautions

If you encounter any suspected malfunction of the aerial platform, or any hazard or potentially unsafe condition relating to capacity, intended use, or safe operation, cease operation and seek assistance from management.

Operator General Precautions

Make sure that all protective guards, cowlings, and doors are in place and secure.

Make sure that the entrance door is safely closed and that the door lock has properly clicked shut. Keeping the entrance door open with the platform elevated (e.g. tying down the entrance door) is prohibited.

Dismantling parts of the guardrails or the entrance door is prohibited.

Mounting and Dismounting Precautions

Use three points of support when getting on or off the platform (two hands and one foot or a similar set of points). Keep the platform clean.

Climbing or standing on the guardrails as well as jumping from the platform onto building parts, steel constructions or finished concrete part constructions is prohibited.

DO NOT dismount while the machine is in motion.

Starting and Stopping Precautions

DO NOT start until all personnel are clearly away from the machine.

Before leaving the operator’s station, place the machine in the stowed position.

When leaving the machine parked or unattended, remove the starter key from the Master Key Switch, set the Battery switch to OFF, then lock the Battery switch.

Operating Precautions

Alterations to the ATB 42/50 are prohibited and only permissible upon written agreement of Snorkel.

The installation or usage of parts that are not produced or provided by Snorkel is prohibited.

DO NOT override any of the safety features of the ATB 42/50.

Limit travel speeds according to conditions. Take into account: grade, surface, congestion, visibility, side slope, location of personnel, and other hazards.

Operator Maintenance Precautions

Use extreme caution when removing radiator caps. Park the machine and let it cool down before opening a pressurized compartment.

ACAUTION

DO NOT use your hand to search for hydraulic

oil leaks. High pressure hydraulic oil can easily cut and penetrate your skin — a very serious injury that requires immediate attention by a medical specialist trained in that type of injury. Use a piece of cardboard or wood to search for hydraulic oil leaks.

DO NOT attempt repairs unless you are trained. Refer to manuals and experienced repair personnel for help.

ATB 42/50 – 0161987EE page 1 - 3

1. Safety

Fuel Handling Precautions

DO NOT smoke or permit open flames while fueling or near fueling operations.

Never remove the fuel cap or refuel a gasoline engine while the engine is running or hot. Never allow fuel to spill on hot machine components.

Maintain control of the fuel filler nozzle when filling the tank.

DO NOT fill the fuel tank to capacity. Allow room for expansion.

Clean up spilled fuel immediately.

Safety Placards and Decals

There are several safety placards and decals on the ATB 42/50. Their locations and descriptions are shown in this section. Take time to study them.

ACAUTION

Be sure that all the placards and decals on the ATB 42/50 are legible. Clean or replace them if you cannot read the words or see the pictures. Clean with soap & water and a soft cloth. Do not use solvents.

Tighten the fuel tank cap securely. If the fuel cap is lost, replace it with an approved cap from Snorkel. Use of a non-approved cap without proper venting may result in pressurization of the tank.

Never use fuel for cleaning purposes.

For diesel engines, use the correct fuel grade for the operating season.

You MUST replace a placard or decal if it is damaged, missing, or cannot be read. If it is on a part that is replaced, make sure a new decal or placard is installed on the replaced part. See your Snorkel dealer for new decals and placards.

NOTE

Refer to Placards and Decals in the “Daily Inspection and Maintenance” chapter 7, for part numbers, location, and required quantities of all placards and decals.

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Safety Placards and Decals Location

(Tow option only)

1. Safety

(Tow option only)

ATB 42/50 – 0161987EE page 1 - 5

1. Safety

(Tow option only)

PLATFORM

(LPG option only)

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1. Safety

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1. Safety

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Safety Device Information

For emergency operation controls and procedures, see the “Emergency Operation” chapter 9.

The devices listed in this chapter are safety devices.

They are on the ATB 42/50 to increase safety in the work place for both the operator and other people near the ATB 42/50.

ACAUTION

DO NOT by pass, disable, modify, or ignore

any of these devices. Check them carefully at the start of each work shift to see that they are in working order (see “Daily Inspection and Maintenance” chapter 7). If any is found to be defective, remove the ATB 42/50 from service immediately until a qualified service technician can make repairs.

Alarms

2. Safety Devices

the other is located on the platform control box. The buzzers are connected in parallel, they both emit the same pattern of sound at the same time. The tilt alarm is also located on the platform control box.

The different alarm sound patterns these three devices make are shown in the table immediately below and discussed below the table.

There are two buzzers on the ATB 42/50. One is located on the ground control box,

E ngine star t-up

Over h eati n g

Low oil pressure

Al ter nator not charging

Ax le unlocked

T i l t al ar m

Opt i on al al ar ms :

All motion

D es cendi ng boom

Drivemotion

Start-Up Alarm

off

5sec.

When the Master Key Switch or Anti-Restart switch is turned ON, just prior to starting, the buzzers emit a loud continuous tone to alert others in the area that the ATB 42/50 is about to start. The tone will continue until the ATB 42/50 starts or the switch is turned OFF.

ATB 42/50 – 0161987EE page 2 - 1

2. Safety Devices

Engine Shut-Off Alarm

The engine shut-off alarm comes on when the engine is overheating or the oil pressure is low.

When the alarm sounds you should immediately lower the platform completely down then turn the engine off until the condition that caused the alarm has been corrected. See “Automatic Shut-Offs and Circuit Breakers” chapter 5, for more information.

NOTE

If the engine has automatically shut off, and will not restart, go to the “Emergency Operation” chapter 9, and use emergency operation procedures to lower the platform.

Alternator Not Charging Alarm

ACAUTION

DO NOT continue to operate the ATB 42/50

while the alternator alarm sounds. Without charging current, the battery will discharge to the point it cannot operate Emergency Power.

Axle Unlocked Alarm

The front axle of the ATB 42/50 pivots so that all four wheels remain on the ground when the machine is driven with the main boom elevated less than 5° and the riser booms down. This improves traction for 4-wheel drive machines and reduces the ground pressure for all machines while they are driven between work sites.

The main boom (more than 5°) and/or riser booms should only be raised when the ATB 42/50 is on a smooth level surface. When the main boom is raised more than 5° or the riser booms are raised slightly the front axle is automatically forced to lock into position parallel to the rear axle so that the bottoms of all four tires are in the same plane. This maximizes stability of the chassis while the booms are up.

If the engine alternator quits (usually because of a broken fan belt), a continuous tone alarm will automatically sound. The alarm warns you that the battery is discharging.

Check the alternator drive belt to see if it is broken or loose before you try to restart the engine. If the engine will not restart, refer the problem to a qualified service technician.

If the front axle is not locked parallel to the rear axle when the main boom is raised more than 5° or riser booms are raised, the TIP OVER HAZARD light will come on and the “axle unlocked” alarm will sound.

ADANGER

DO NOT raise the main boom or riser booms

while the “axle unlocked” alarm is sounding.

ACAUTION

When the alarm sounds you should IMMEDIATELY lower the booms completely down. Drive to a slightly different position, then raise the booms again. If the alarm comes on again, take the machine out of service immediately and refer the problem to a qualified service technician.

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Tilt Alarm

The tilt alarm warns the ATB 42/50 operator that the ATB 42/50 is over 5° out of level. If the tilt continues to increase, the ATB 42/50 will eventually tip over.

ADANGER

To prevent Death or Serious Injury, when you hear the loud two toned (high-low-high-low...) alarm, immediately retract and lower the platform. When the platform is completely down, determine and correct the cause of the tilt before raising the platform again.

All Motion Alarm

The optional all motion alarm emits a loud beeping sound anytime a platform moving switch is used or anytime the DRIVE/STEER controller is used. The alarm alerts people near the ATB 42/50 that some part of the ATB 42/50 is moving.

Descending Boom Alarm

The optional descending boom alarm emits a loud beeping sound anytime the jib boom, main boom, or riser booms come DOWN. The alarm also sounds when the tip boom of the ATB 50 RETRACTS. The alarm alerts people near the ATB 42/50 that a boom is lowering.

2. Safety Devices

Other Safety Devices

Battery

The battery in the ATB 42/50 is a safety device because it powers the emergency operating circuits. If the platform is aloft and the engine dies, battery power is the only way to lower the platform, there is no manual bleed down procedure. Thus, battery maintenance is very important. The battery should always be kept at full charge and the battery terminals kept free of corrosion.

Drive Motion Alarm

The optional drive motion alarm emits a loud beeping sound anytime the Drive/Steer controller is in FORWARD or REVERSE. This alarm alerts people on the ground that the ATB 42/50 is traveling along the ground.

If an optional extra battery is installed, at rear of turntable, it too is a safety device. The extra battery is not connected to the standard battery. The batteries alternate use: only one battery is connected to the ATB electrical system at a time. Each time the starter motor is activated the battery used changes.

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2. Safety Devices

Emergency Stop Switches

At Ground Control Box

Press the large red Emergency Stop switch in, at any time, under any conditions, and the entire machine stops, the engine turns off, the brakes automatically set, and nothing moves.

At Platform Control Box

Press the large red Emergency Stop switch down (off) and the entire machine stops, the engine turns off, the brakes automatically set, and nothing moves.

This switch must be pulled to its up (on) position to control the ATB 42/50 from the platform.

Flashing Lights

This switch must be pulled out (on) for anything on the ATB 42/50 to work.

ACAUTION

The ground control box is designed to override the platform control box.

If the platform control box Emergency Stop switch is down (off) the ground control box can still be used to start and operate the ATB 42/50.

The optional flashing lights alert people that the ATB 42/50 is present. The lights flash at about one flash per second any time the Battery,

Emergency Stop (at the ground), and Master Key Switch are all ON.

There is no ON/OFF switch for the flashing lights.

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2. Safety Devices

Foam Filled Tires

Foam filled tires eliminate the possibility of air leaks or blowouts which might cause a tipover. Foam filled tires are therefore a safety device.

Inspect them at the start of each work shift according to the procedures in the “Daily Inspection and Maintenance” chapter 7.

The foam filled tire shown here, shows signs of damage and therefore is not acceptable for service.

Lanyard Anchor Points

All personnel on the platform shall attach their fall restraint lanyards to one of the lanyard anchor points.

K Platform Foot Switch

The platform foot switch prevents the platform from moving if something accidentally pushes one of the platform moving controls on the platform control box. To make the platform move you must step on the foot switch at the same time you use a platform moving control.

Platform Guardrails

The guardrails help protect you from falling off the platform. Be sure the guardrails are properly installed and that the gravity gate or swinging gate is in place.

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2. Safety Devices

Platform Gravity Gate

Ground Operation Switch

The platform gravity gate is the place in the platform guardrail system where you should enter and leave the platform.

Raise the gate and step under it onto the platform.

ACAUTION

Once you have entered the platform and attached your fall restraint lanyard to an anchor point, check to see that the gravity gate has fallen back into place.

The Ground Operation switch prevents the platform from moving if something accidentally pushes one of the platform moving switches at the ground control box. To make the platform move you must push and hold the Ground Operation switch up at the same time you use a platform moving switch.

Operator Horn

The operator Horn is used primarily to get the attention of people on the ground when you are working aloft. For the horn to work the Battery switch must be ON and the following switches, on the ground control box, must be set as indicated:

Platform/Ground Selector........PLATFORM

Emergency Stop............Pulled Out (ON)

Master Key Switch ....................ON

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2. Safety Devices

Level Sensor

The level sensor, located behind the ground control box, detects how far out of level the turntable is.

If the turntable gets over 5° out of level and booms are raised, the level sensor activates the tilt alarm.

Platform Swinging Gate

Platform Work Lights

The optional platform work lights are located on top the platform guardrail. For the lights to work, the Battery switch must be ON and the following switches, on the ground control box, must be set as indicated:

The optional platform swinging gate is designed to automatically close after you enter or leave the platform. It helps prevent people from falling off the platform.

Platform/Ground Selector .......PLATFORM

Emergency Stop............Pulled Out (ON)

Master Key Switch ....................ON

The toggle switch on the back of a light turns it on.

ACAUTION

Incandescent lights draw three amperes (35 watts) each. Halogen lights draw four amperes (50 watts) each.

If you work with the lights turned on and the engine turned off, the battery can discharge to the point it will not start the engine nor run the Emergency Power hydraulic pump.

If you cannot leave the engine running while the lights are on, start and run the engine at least 15 minutes in each hour to keep the battery charged.

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2. Safety Devices

Tipover Hazard Light

This light will come on when the front axle should be locked but is not. The axle unlocked alarm will sound when this light is on. When this light comes on you should immediately completely lower the booms.

Drive the ATB to a slightly different position then raise the booms again. If the alarm comes on, take the machine out of service IMMEDIATELY and refer the problem to a qualified service technician. For more information about the axle lock, see “Axle Unlocked Alarm” at the start of this chapter.

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General Specifications

Working height, nominal

42 .......................48.2 ft (14.81 m)

50 .......................56.0 ft (17.07 m)

Platform height, maximum

42 .......................42.6 ft (12.98 m)

50 .......................50.2 ft (15.30 m)

3. Specifications

Turning radius

2-wheel steer, inside ...........89in(2.26m)

2-wheel steer, outside .........205in(5.21m)

4-wheel steer, inside ...........45in(1.14m)

4-wheel steer, outside .........124in(3.15m)

Tires...............12x16.5 (30.5 x 42), 8 ply

Electrical system ...12Vdc(neg.chassis ground)

Platform reach, maximum

42........................20.1ft(6.13m)

50........................28.0ft(8.53m)

Length, overall - booms down and retracted

42........................20.7ft(6.30m)

50........................21.0ft(6.40m)

Width,overall..................90in(2.29m)

Height

(booms down & retracted) ....... 83in(2.11m)

Wheelbase ....................96in(2.44m)

Ground clearance ...............7in(17.8 cm)

Tailswing, stowed

42.........................16in(0.41m)

50.........................15in(0.38m)

Weight, approximate

42....................13,600 lbs (6,170 kg)

50....................15,280 lbs (6,930 kg)

Wheel loading, single - maximum

42.....................7,050 lbs (3,200 kg)

50.....................7,890 lbs (3,580 kg)

Ground pressure, standard tires - maximum

42 .......................68psi(469kPa)

50 .......................77psi(529kPa)

Gradeability

2-wheel drive ........................25%

4-wheel drive ........................40%

Platform size:

Standard ............30x72in(76x183cm)

Optional .............30x96in(76x244cm)

Unrestricted rated work load

(total weight of personnel, tools, and equipment that platform is designed to carry above its floor):

Load weight...............500lbs(227kg)

Occupants .....................2people

Travel speeds

Booms down and retracted. . . 3.5 mph (5.6 km/h) Booms up and/or extended . . 0.5 mph (0.8 km/h)

Environmental operating ranges:

ambient air temperature

Fahrenheit .................0°Fto+110°F

Celsuis ...................-18°Cto+43°C

Wind speed

(maximum gust or steady) . . 28 mph (45 km/hr)

Fuel tank capacity

Gas or diesel ......... 15galUSA(56.8 liters)

Optional LPG............43.5 lbs USA (20 kg)

Hydraulic oil

Pressure, maximum - 42. . 3,200 psi (22,080 kPa) Pressure, maximum - 50. . 3,500 psi (24,150 kPa)

Tank capacity ........16.5 gal USA (62.5 liters)

Maximumtemperatureattank .... 200°F(93°C)

Hydraulic oil type and grade recommended

Above10°F(-13°C)......... MobilDTE-13M

Below10°F(-13°C) .........Mobil DTE-11M

Boom times, (complete range of movement):

Turntable Swing, 360°

CWorCCW ..............60-70seconds

Platform Rotation, 180°

CWorCCW ..............15-20seconds

Main Boom Elevation, +75°/-1° to horizontal

UP:.....................30-35seconds

DOWN: ..................20-25seconds

Riser Boom Elevation

UP:.....................55-60seconds

DOWN: ..................55-60seconds

Jib Boom, +45°/-75° to horizontal

UP:..................... 25-30seconds

DOWN:.................. 15-20seconds

Noise level

Diesel .........................108db(A)

Gasoline........................110db(A)

ATB 42/50 – 0161987EE page 3 - 1

+ 61 hidden pages

Snorkel ATB50 CE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Electrical Hazard

Introduction

Table of Contents

1. Safety

2. Safety Devices

3. Specifications