Snorkel TB50 CE User Manual

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Part Number 0075251EE November, 2005

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

Do not go closer than the minimum safe approach distance as defined by the Minimum Safe Approach Distance section in Chapter 3 – Safety.

Regard all conductors as energized. Allow for electrical wire sag and aerial platform sway . If the platform, booms, or any part of the aerial platform cont acts a high-voltage electrical conductor ,

the entire machine can become electrically charged. If that happens, remain on the machine and do not contact any other structure or object. This includes

the ground, adjacent buildings, poles, and any other objects that are not part of the aerial platform. Such contact could make your body a conductor to the other object, creating an electrical shock

hazard resulting in death or serious injury . If an aerial platform is in contact with an energized conductor the platform operator must warn ground

personnel in the vicinity to stay away . Their bodies can conduct electricity creating an electrical shock hazard resulting in death or serious injury .

Do not approach or leave the aerial platform until the electricity has been turned off. Do not attempt to operate the lower controls when the platform, booms, or any part of the aerial

platform is in contact with a high-voltage electrical conductor or if there is an immediate danger of such contact.

Personnel on or near an aerial platform must be continuously aware of electrical hazards, recognizing that death or serious injury can result from contact with an energized conductor .

Table of Contents

Chapter 1 – Introduction

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

Options ..................................................................... 1

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

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

Operation .................................................................. 1

Maintenance ............................................................. 2

Owner and User Responsibilities............................... 2

Additional Information ................................................ 2

Chapter 2 – Specifications

Component Identification ........................................... 3

Working Envelope – TB42/420................................... 4

Working Envelope – TB50 ......................................... 5

General Specifications – TB42/420............................ 6

Aerial Platform ........................................................6

Platform ..................................................................6

Function Speed.......................................................6

Drive System ..........................................................6

Tires .......................................................................6

Electrical System ...................................................6

Hydraulic System ...................................................6

Engine ....................................................................6

Fuel T ank Capacity .................................................6

Ambient Air T emperature Operating Range..............6

Maximum Wind Speed............................................6

Vibration .................................................................6

Sound Threshold .....................................................6

General S pecifications – TB50................................... 7

Aerial Platform ........................................................7

Platform ..................................................................7

Function Speed.......................................................7

Drive System ..........................................................7

Tires .......................................................................7

Electrical System ...................................................7

Hydraulic System ...................................................7

Engine ....................................................................7

Fuel T ank Capacity .................................................7

Ambient Air T emperature Operating Range..............7

Maximum Wind Speed............................................7

Vibration .................................................................7

Sound Threshold .....................................................7

Engine Specifications................................................ 8

Deutz F3L-2011F ....................................................8

Cummins B3.3 ........................................................9

Engine Oil Viscosity.................................................. 9

Chapter 3 – Safety

Electrocu tion Hazard s.............................................. 11

Minimum Safe Approach Distance............................ 11

Prestart Inspection ...................................................12

Work Place Inspection and Practices.......................12

Operation .................................................................12

Tip-Over and Falling Hazards....................................12

Electrical System .....................................................13

Hydraulic System.....................................................13

Engine and Fuel Handling Precautions .....................13

Placards and Decals ................................................14

Chapter 4 – Safety Devices

Emergency Stop Controls ........................................15

Emergency Power System.......................................15

Emergency Lowering Knob.......................................15

Ground Operation Switch .........................................16

Platform Foot Switch................................................16

Guardrails ................................................................16

Lanyard Anchors ......................................................16

Tilt Alarm..................................................................16

Platform Overload Sensing System ..........................17

Engine Protection Systems......................................17

High Engine T emperature Alarm ............................17

Low Oil Pressure Alarm ........................................17

Horn .........................................................................18

Drive Motion Alarm ...................................................18

Flashing Light ..........................................................18

Driving Lights............................................................18

Platform Work Lights ...............................................18

Chapter 5 – Gauges and Displays

Hour Meter ...............................................................19

Engine T emperature Gauge ......................................19

Ammeter ..................................................................19

Engine Air Filter Gauge ............................................19

Fuel .........................................................................19

Engine Oil ................................................................20

Hydraulic Fluid Filter Gauge .....................................20

Fluid Level and T emperature Gauge..........................20

Chapter 6 – Controls

Battery Disconnect Switch .......................................21

Lower Controls .........................................................21

Emergency Stop Button........................................21

Control Selector Switch ........................................21

Start Switch ..........................................................21

Ground Operation Switch ......................................22

Rotation Switch..................................................... 2 2

Boom Elevation Switch .........................................22

Boom Extend/Retract Switch ................................22

Platform Level Switch............................................ 22

Platform Rotation Switch.......................................22

Engine/Emergency Power Switch .........................22

Throttle Switch ......................................................22

Circuit Breaker Reset Buttons...............................22

Upper Controls .........................................................23

Start Switch ..........................................................23

Emergency Stop Button........................................23

Speed Knob ..........................................................23

Drive/Boom Selector Switch.................................. 2 3

Boom Joystick ......................................................23

Drive Joystick .......................................................24

TB42/TB50 – 0075251EE

T able of Contents

Drive Range Switch ...............................................24

Boom Extend/Retract Switch ................................24

Platform Rotate Switch .........................................24

Platform Level Switch............................................24

Engine/Emergency Power Switch .........................24

Throttle Switch...................................................... 2 4

Horn Button ..........................................................24

Platform Foot Switch.............................................24

Machine/Generator Switch .......................................25

Driving and Platform Work Lights..............................25

Chapter 7 – Prestart Inspection

Operator’s Manual....................................................27

Engine .....................................................................27

Oil Level................................................................27

Coolant .................................................................27

Radiator ................................................................28

Fuel T ank.............................................................. 2 8

Fuel Line............................................................... 2 8

Air Filter................................................................28

Charging System ..................................................28

Cold Weather S tart Kit—Block Heater................... 2 8

Electrical System .....................................................28

Emergency Power Battery ....................................29

Battery Fluid Level ................................................29

Battery T erminals ..................................................29

Cables and Wiring Harness......................................29

Hydraulic System.....................................................29

Fluid Level.............................................................29

Fluid Filter.............................................................30

Hoses, Tubes, and Fittings ...................................30

Tires and Wheels .....................................................30

Lower Control Station ...............................................30

Operating Controls ................................................30

Emergency S top ...................................................31

Emergency Power.................................................31

Emergency Lowering................................................31

Level Sensor ............................................................31

Flashing Light ..........................................................32

Sandblast Protection Kit ..........................................32

Structures ................................................................32

Weldments ...........................................................32

Slide Pads ............................................................32

Wire Ropes...........................................................32

Fasteners .............................................................33

Upper Control Station ...............................................33

Guardrail System.................................................. 3 3

Lanyard Anchors ...................................................33

Operating Controls ................................................33

Emergency S top ...................................................34

Emergency Power.................................................34

Horn...................................................................... 34

Electrical Power Outlet .........................................34

Drive Motion Alarm ................................................34

Driving and Work Lights ........................................34

Platform Control Cover ..........................................34

T ow Kit.....................................................................34

Placards and Decals ................................................35

Prestart Inspection Checklist ...................................39

Chapter 8 – Operation

Cold Weather Start-Up .............................................41

Engine Cold Weather Start Kit..................................41

Cummins — Block Heater ....................................41

Deutz — Manifold Preheater .................................41

Hydraulic System Cold Weather Warm-Up...............41

Preparing for Operation.............................................42

Lower Controls .........................................................42

Upper Controls .........................................................42

Boom Operation....................................................43

Driving and Steering ..............................................43

Drive S peeds .........................................................44

Motion Warning Alarm...........................................44

Platform Overload Sensing System ..........................44

Four Wheel Drive......................................................45

AC Generator ...........................................................45

Air Line ....................................................................45

Driving Lights............................................................46

Platform Work Lights ...............................................46

Chapter 9 – Stowing and Transporting

Stowing ....................................................................47

Transporting .............................................................47

Driving...................................................................47

Winching ..............................................................48

Hoisting ................................................................ 49

Securing for Transport........................................... 49

Chapter 10 – Emergency Operation

Emergency Power System.......................................51

Lower Controls...................................................... 51

Upper Controls...................................................... 51

Emergency Lowering................................................52

Towing ......................................................................52

Chapter 11 – Troubleshooting

Troubleshooting Chart ..............................................55

Appendix A – Glossary

Limited Warranty

TB42/TB50 – 0075251EE

Chapter 1 – Introduction

Aerial Platform Features

The aerial platform is a boom-supported elevating work platform used to raise personnel, their tools, and material to the workstation. The booms are raised and lowered with hydraulic cylinders. Hydraulic motors on the drive wheels provide power to move the aerial platform.

The standard machine includes the following features.

• Proportional boom lift, swing, and drive control

• 180 degree hydraulic platform rotation – TB42

• 150 degree hydraulic platform rotation – TB50

• Two safety lanyard att achments

• Manual lowering valve at chassis

• Hydraulic oil level and temperature gauges

• Lifting lugs

• Tie-down lugs

• Horn

• 3.5 degree tilt alarm

• Electronic ignition

• Hour meter

• Ammeter

• Coolant temperature gauge

• High engine temperature shut down

• Low oil pressure shut down

• Foam filled tires

• Battery operated emergency power system

• 360 degree continuous turntable rotation

• 76 cm x 152 cm (30″ x 60″) steel platform – TB42

• 76 cm x 152 cm (30″ x 60″) aluminum platform – TB420 and TB50

• Platform gravity gate

• Platform overload sensing system

• Five year limited warranty

The machine may be powered with one of the following engines.

• Tow kit

• 76 cm x 234 cm (30″ x 92″) aluminum 227 kg (500 lb) capacity platform

• 76 cm x 152 cm (30″ x 60″) aluminum 272 kg (600 lb) capacity platform

Operator’s Manual

This manual provides information for safe and proper operation of the aerial platform. Read and understand the information in this Operator’s Manual before operating the aerial platform on the job.

Additional copies of this manual may be ordered from Snorkel. Supply the model and manual part number from the front cover to assure that the correct manual will be supplied.

All information in this manual is based on the latest product information at the time of publication. Snorkel reserves the right to make product changes at any time without obligation.

Safety Alerts

A safety alert symbol is used throughout this manual to indicate danger, warning, and caution instructions. Follow these instructions to reduce the likelihood of personal injury and property damage. The terms danger, warning, and caution indicate varying degrees of personal injury or property damage that can result if the instruction is not followed.

ADanger

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury . This signal word is to be used in the most extreme situations.

• Cummins B3.3 – Diesel

• Deutz F3L-2011F – Diesel The aerial platform has been manufactured to conform to

European Directive 98/37/EC and European Standard EN280.

Options

The following options may be provided on the machine.

• Platform control cover

• Platform work lights – flood lights

• Flashing light – amber

• Platform swinging gate

• Sandblast protection kit

• Driving lights – two headlights and two rear lights

• Spark arrestor muf fler – Deutz engines

• Cold weather start kit Cummins – block heater

• Cold weather start kit Deutz – manifold preheater

• AC generator – hydraulic powered, 220 V AC

• Drive motion alarm

• Road tread tires

• Flotation tires

• Airline to platform

TB42/TB50 – 0075251EE 1

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury .

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

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

Operation

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

AWarning

ACaution

Chapter 1 – Introduction

AWarning

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 understand the information in this manual and on the placards and decals on the machine before operating the aerial platform on the job.

Training is essential and must be performed by a qualified person. Become proficient in knowledge and actual operation before using the aerial platform on the job. Y ou must be trained and authorized to perform any functions of the aerial platform. Operation of the aerial platform must be within the scope of the machine specifications.

The operator bears ultimate responsibility for following all manufacturer’s instructions and warnings, regulations and safety rules of their employer and/or any state or federal law.

Maintenance

Every person who maintains, inspects, tests, or repairs 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 performed by maintenance personnel who are qualified to work on the aerial platform.

If it becomes necessary to weld aerial platform components as a method of repair , take all precautions to prevent damage to electronic circuitry and devices on the machine. This includes, but may not be limited to, disconnecting battery cables and electronic devices.

Do not modify this aerial platform without prior written consent of the Snorkel Engineering Department. Modification may void the warranty , adversely af fect st ability, or affect the operational characteristics of the aerial platform.

Owner and User Responsibilities

All owners and users of the aerial platform must read, understand, and comply with all applicable regulations. Ultimate compliance to national safety regulations is the responsibility of the user and their employer.

Additional Information

For additional information contact your local dealer or Snorkel at:

Snorkel International P.O. Box 1160 St. Joseph, MO 64502-1160 USA 785-989-3000

http://www.snorkelusa.com

ACaution

Welding current can be very intense. Damage to electronic components can result. Connect the ground clamp as close as possible to the area being welded. Disconnect battery cables and any microprocessors and engine control modules before welding on the machine.

2 TB42/TB50 – 0075251EE

Component Identification

Chapter 2 – Specifications

Upper Controls

Emergency

Lowering

V alve

Hydraulic Fluid Tank

And Filter

Right Side

Battery Disconnect Switch

Fuel Tank

Chassis

Wiring Box

Steer Wheels

Operator’s

Manual

Lower Controls

Engine

Steer Wheels

Batteries

Main Boom

Intermediate

Boom

Tip Boom

Platform

Foot Switch

Left Side

TB42/TB50 – 0075251EE 3

Chapter 2 – Specifications

Working Envelope – TB42/420

Meters

(Feet)

15.2 (50)

12.2 (40)

9.1

(30)

6.1

(20)

3.0

(10)

12.2 (40)

4 TB42/TB50 – 0075251EE

9.1

(30)

6.1

(20)

3.0

(10) 0

3.0

(10)

Working Envelope – TB50

Meters

(Feet)

18.2 (60)

15.2 (50)

12.2 (40)

Chapter 2 – Specifications

9.1

(30)

6.1

(20)

3.0

(10)

12.2 (40)

TB42/TB50 – 0075251EE 5

9.1

(30)

6.1

(20)

3.0

(10) 0

3.0

(10)

Chapter 2 – Specifications

General Specifications – TB42/420

Aerial Platform

Working height 14.6 m (48′) Maximum platform height 12.8 m (42′) Horizontal reach 10.1 m (33′) Main boom Articulation -18° to +75° Extension 2.8 m (9′ 5.7″) Turntable rotation 360° continuous Turning radius, inside T wo wheel drive 1.6 m (5′ 2″) Four wheel drive 1.7 m (5′ 6″) Wheel base 2.4 m (8′) Ground clearance 25 cm (10″) Maximum wheel load 2,654 kg (5,850 lbs) Maximum ground pressure 3.8 kg/cm² (54 psi) Weight, EVW approximate TB42 4,944 kg (10,900 lbs) TB420 5,987 kg (13,200 lbs) Stowed width 2.4 m (7′ 1 1.5″) Stowed length 7.2 m (23′ 6.25″) Stowed height 2.4 m (7′ 9.5″)

Platform

Dimensions Standard steel 76 cm x 152 cm (30″ x 60″) Rated work load 227 kg (500 lb) Optional steel 76 cm x 234 cm (30″ x 92″) Rated work load 227 kg (500 lb) Optional aluminum 76 cm x 234 cm (30″ x 92″) Rated work load 227 kg (500 lb) Optional aluminum 76 cm x 234 cm (30″ x 92″) Rated work load 295 kg (650 lb) Optional aluminum 76 cm x 152 cm (30″ x 60″) Rated work load 318 kg (700 lb) Rotation 90° CW to 90° CCW Maximum number of occupants 2 people Optional AC generator 220 VAC

Function Speed

Turntable rotation, 360 degrees 100 to 1 10 seconds Main boom Up 40 to 50 seconds Down 40 to 50 seconds Extend 40 to 45 seconds Retract 25 to 30 seconds Platform rotation, 180 degrees 16 to 20 seconds Drive High, booms stowed 4.8 km/h (3.0 mph) Low, booms elevated 1.6 km/h (1.0 mph)

Drive System

St andard Four wheel drive Optional Two wheel drive Gradeability 25%

Tires

Street tread, foam filled 10 ply 30 cm x 42 cm (12″ x 16.5″) Bar lug, foam filled 10 ply 30 cm x 42 cm (12″ x 16.5″)

Electrical System

Vo lta ge 12 V DC negative chassis ground Source Two - 12 V 600 CCA batteries Fluid recommended distilled water

Hydraulic System

Maximum pressure 17,237 kPa (2,500 psi) Reservoir capacity 62.4 l (16.5 US gal) System capacity 94.6 l (25 US gal) Maximum operating temperature 93°C (200°F) Hydraulic fluid recommended Above -13°C (10°F) Mobil DTE-13M

(ISO VG32)

Below -13°C (10°F) Mobil DTE-11M

(ISO VG15)

Engine

Diesel Cummins B3.3 Diesel Deutz F3L-2011F

Fuel Tank Capacity

Diesel 75.7 l (20 US gal)

Ambient Air Temperature Operating Range

Celsius -18°C to 43°C Fahrenheit 0°F to 1 10°F

Maximum Wind Speed

Gust or steady 45 km/h (28 mph)

Vibration less than 2.5 m/sec Sound Threshold below 97 dB(A)

6 TB42/TB50 – 0075251EE

General Specifications – TB50

Chapter 2 – Specifications

Aerial Platform

Working height 17.2 m (56′) Maximum platform height 15.4 m (50′ 5″) Horizontal reach 11.9 m (39′ 1″) Main boom Articulation -18° to +75° Extension 4.2 m (13′ 11.5″) Turntable rotation 360° continuous Turning radius, inside T wo wheel drive 1.6 m (5′ 2″) Four wheel drive 1.7 m (5′ 6″) Wheel base 2.4 m (8′) Ground clearance 25 cm (10″) Maximum wheel load 3,075 kg (6,780 lbs) Maximum ground pressure 4.5 kg/cm² (64 psi) Weight, EVW Approximate 6,442 kg (14,200 lbs) Stowed widt h 2.4 m (7′ 11.5 ″) Stowed length 8.1 m (26′ 9″) Stowed height 2.3 m (7′ 9″)

Platform

Dimensions Standard aluminum 76 cm x 152 cm (30″ x 60″) Rated work load 227 kg (500 lb) Optional aluminum 76 cm x 234 cm (30″ x 92″) Rated work load 227 kg (500 lb) Rotation 75° CW to 75° CCW Maximum number of occupants 2 people Optional AC generator 220 VAC

Function Speed

Turntable rotation, 360 degrees 110 to 120 seconds Main boom Up 52 to 57 seconds Down 52 to 57 seconds Extend 40 to 45 seconds Retract 25 to 30 seconds Platform rotation, 150 degrees 16 to 20 seconds Drive High, booms stowed 4.8 km/h (3.0 mph) Low, booms elevated 1.6 km/h (1.0 mph)

Drive System

St andard Four wheel drive Optional Two wheel drive Gradeability 25%

Tires

Street tread, foam filled 10 ply 30 cm x 42 cm (12″ x 16.5″) Bar lug, foam filled 10 ply 30 cm x 42 cm (12″ x 16.5″)

Electrical System

Vo ltage 12 V DC negative chassis ground Source Two - 12 V 600 CCA batteries Fluid recommended distilled water

Hydraulic System

(ISO VG32)

Below -13°C (10°F) Mobil DTE-11M

(ISO VG15)

Engine

Diesel Cummins B3.3 Diesel Deutz F3L-2011F

Fuel Tank Capacity

Diesel 75.7 l (20 US gal)

Ambient Air Temperature Operating Range

Celsius -18°C to 43°C Fahrenheit 0°F to 1 10°F

Maximum Wind Speed

Gust or steady 45 km/h (28 mph)

Vibration less than 2.5 m/sec Sound Threshold below 97 dB(A)

TB42/TB50 – 0075251EE 7

Chapter 2 – Specifications

Engine Specifications

Engine

Cummins

B3.3

Diesel

Deutz

F3L-2011F

Diesel

Note 1: Refer to the engine manufacturers manual for specific fuel recommendations and specifications. Note 2: Ethylene glycol or Propylene glycol may be used. Refer to the Cummins® Operation and Maintenance Manual B3.3 Series

Note 3: Refer to the engine manufacturers manual for specific lubricating oil recommendations and specifications.

Displacement Fuel Grade Coolant

ASTM No. 2D fuel with a

3.26 liter

(199 cu. in.)

2.0 liter (125 cu. in.)

Engines for specific coolant recommendations and specifications.

minimum Cetane number of

40.

For operating tempera-

tures below 0°C (32°F) use

winterized No. 2D.

• DIN 51 601 (February 1986).

• BS 2869: A1 and A2 (with A2 refer to Deutz manual about sulfur content)

• ASTM D 975-88: 1-D and 2-D

• CEN EN 590 or DIN EN 590

• NATO Code F-54 and F-75

• For operating temperatures below 0°C (32°F) use winter grade diesel.

50% Antifreeze

50% water

Air

Temperature

60°C to 100°C

140°F to 212°F

78°C to 95°C

172°F to 203°F

Operating

Oil

Capacity

7.5 liter (2 gal) total

1.5 liter (1.6 qt) Low to High

6.0 liter

(1.59 US gal)

Grade

15W-40

CH4/SG

API: CD

or higher

Oil

SAE

API:

8 TB42/TB50 – 0075251EE

Engine Oil Viscosity

Cummins B3.3

Deutz F3L-2011F

Chapter 2 – Specifications

TB42/TB50 – 0075251EE 9

Chapter 2 – Specifications

10 TB42/TB50 – 0075251EE

Chapter 3 – Safety

Knowledge of the information in this manual, and proper training, provide a basis for safely operating the aerial platform. Know the location of all controls and how they operate to act quickly and responsibly in an emergency .

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

If any malfunction, hazard or potentially unsafe condition relating to capacity, intended use, or safe operation is suspected, stop aerial platform operation and seek assistance.

The operator bears ultimate responsibility for following all manufacturer’s instructions and warnings, regulations and safety rules of their employer and/or any state or federal law.

Electrocution Hazards

The aerial platform is made of metal components and is not insulated. Regard all conductors as energized. Do not operate outside during a thunderstorm.

Minimum Safe Approach Dist ance

Minimum safe approach distances to energized power lines and their associated parts must be observed while operating the aerial platform.

ADanger

The aerial platform is not electrically insulated. Death or serious injury will result from contact with, or inadequate clearance from, an energized conductor. Do not go closer than the minimum safe approach distance as defined by ANSI.

ANSI publications define minimum distances that must be observed when working near bus bars and energized power lines. T able 1 and Figure 3 are reprinted courtesy of Scaffold Industry Association, ANSI/SIA A92.5

Volt age 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

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

Table 1 – Minimum Safe Approach Distance

Figure 3 – Minimum Safe Approach Distance

TB42/TB50 – 0075251EE 11

Chapter 3 – Safety

Prestart Inspection

Perform a prestart inspection before each shift as described in Chapter 7. Do not use the aerial platform on the job unless you are trained and authorized to do so.

Work Place Inspection and Practices

Do not use the aerial platform as a ground connection when welding. The welding ground clamp must be attached to the same structure that is being welded. Electrical current flow can be very intense, causing serious internal damage to some components.

Inspect the area before and during aerial platform use. The following are some potential hazards that may be in the work place.

• 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 forces applied by the aerial platform in all operating configurations

Always look in the direction of movement. Drive with care and at speeds compatible with the work place conditions. Use caution when driving over rough ground, on slopes, and when turning. Do not engage in any form of horseplay or permit riders any place other than in the platform.

Secure all accessories, containers, tools, and other materials in the platform to prevent them from accidentally falling or being kicked off the platform. Remove all objects that do not belong in or on the aerial platform.

Never steady the platform by positioning it against another platform.

Do not operate the aerial platform if it is damaged or not functioning properly. Qualified maintenance personnel must correct the problem before putting the aerial platform back into service.

Operation

Use three points of support when entering or exiting the platform. For example, use two hands and one foot when climbing into the platform.

Never cover the platform floor grating or otherwise obstruct your view below. Make sure the area below the platform is free of personnel before lowering.

Before using the aerial platform in any hazardous (classified) location, make certain it is approved and of the type required for use in that particular location.

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

While operating the aerial platform, a good safety practice is to have qualified personnel in the immediate work 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.

• Watch for bystanders and never allow anyone to be under, or to reach through the booms while operating the aerial platform.

ADanger

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

Keep 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.

Do not dismount while the aerial platform is in motion or jump off the platform.

Properly stow the aerial platform and secure it against unauthorized operation at the end of each work day , before transporting, or if it is left unattended.

Tip-Over and Falling Hazards

Operate the aerial platform only on a firm, flat, level surface capable of withstanding all load forces imposed by the aerial platform in all operating conditions. Refer to the General Specifications chart for the maximum wheel load and ground pressure. Raise the booms only when the aerial platform is on level ground.

ADanger

The aerial platform can tip over if it becomes unstable. Death or serious injury will result from a tipover accident. Do not drive or position the aerial platform for elevated use near any drop-off, hole, slope, soft or uneven ground, or other tip-over hazard. Do not raise the boom in winds above 45 km/h (28 mph).

All platform occupants must wear a fall restraint device connected to a lanyard anchor point.

12 TB42/TB50 – 0075251EE

Chapter 3 – Safety

It is best not to transfer from the platform to another structure or from the structure to the platform, unless that is the safest way to do the job. Judge each situation separately taking the work environment into account. If it is necessary to transfer from the platform to another structure the following guidelines apply:

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

2. Transfer your anchorage from one structure to the other before stepping across.

3. Remember that you might be transferring to a structure where personal fall arrest is required.

4. Use the platform entrance, do not climb over or through the guardrails.

Do not operate the aerial platform in windy or gusty conditions. Do not add anything to the aerial platform that will increase the wind loading such as billboards, banners, flags, etc.

Never operate the aerial platform without all parts of the guardrail system in place and the gate closed. Make sure that all protective guards, cowlings, and doors are securely fastened.

Do not exceed the platform capacity as indicated on the 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 approved in writing by Snorkel.

Do not operate any of the aerial platform functions while the battery charger is plugged in.

AWarning

Batteries give off hydrogen and oxygen that can combine explosively . Death or serious injury could result from a chemical explosion. Do not smoke or permit open flames or sparks when checking the batteries.

Battery acid can damage the skin and eyes. Serious infection or reaction can result if medical treatment is not given immediately. Wear face and eye protection when working near 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 working 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 or reaction will result if medical treatment is not given immediately . In case of injury by escaping hydraulic fluid, seek medical attention at once.

Do not place your hand or any part of your body in front of escaping hydraulic fluid. Use a piece of cardboard or wood to search for hydraulic leaks.

Do not use the aerial platform as a crane, hoist, jack, or for any purpose other than to position personnel, tools, and materials.

Do not climb on the guardrails or use ladders, planks, or other devices to extend or increase the work position from the platform.

Take care to prevent rope, electrical cords, and hoses, etc., from becoming caught in or on the aerial platform. If the platform or booms becomes caught on an adjacent structure or other obstacle and is prevented from normal motion, reverse the control to free the platform. If control reversal does not free the platform, evacuate the platform before attempting to free it.

Electrical System

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

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Engine and Fuel Handling Precautions

Refer to the engine manufacturer’s Operator’s Manual for complete information on safe engine operation, maintenance, and specifications.

ADanger

Engine exhaust contains carbon monoxide, a poisonous gas that is invisible and odorless. Breathing engine exhaust fumes will cause death or serious illness. Do not run the engine in an enclosed area or indoors without adequate ventilation.

Be careful not to run the diesel fuel tank empty. Bleed the fuel system if air enters the lines between the tank and the injection pump.

Allow the engine to return to idle before shutting the engine off.

Do not smoke or permit open flames while fueling or near fueling operations.

Chapter 3 – Safety

Never remove the fuel cap or fill the fuel tank 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. Spilled fuel is a potential fire hazard.

Do not overfill the fuel tank. Allow room for expansion. Clean up spilled fuel immediately . Tighten the fuel tank cap securely. If the fuel cap is lost,

replace it with an approved cap from Snorkel. Use of a non-approved cap without proper venting may result in pressurization of the tank.

Never use fuel for cleaning purposes.

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

ACaution

Engine coolant escaping under pressure can cause serious burns. Shut the engine off and let it cool before removing the radiator cap.

Let the engine and radiator cool before adding coolant.

Placards and Decals

The aerial platform is equipped with placards and decals 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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Chapter 4 – Safety Devices

This aerial work platform is manufactured with safety devices, placards, and decals to reduce the likelihood of an accident. For the safety of all personnel, do not disable, modify, or ignore any safety device. Safety devices are included in the daily prestart inspection.

AWarning

The potential for an accident increases when safety devices do not function properly. Death or serious injury 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 personnel can make repairs.

Emergency Stop Controls

There is an emergency stop control at the lower and upper controls.

At the lower controls, the emergency stop is a two-position push button (refer to Figure 4.1). Push the emergency stop button in to disconnect power to all control circuits. Pull the button out to restore power .

Emergency Stop Button

Engine/Emergency

Power Switch

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

Emergency Stop Button

Figure 4.2 – Upper Controls

Push the emergency stop button in to disconnect power to the upper control circuits. Pull the button out to restore power.

Engine/Emergency

Power Switch

Emergency Power System

The emergency power system includes a back-up pump, motor, and battery . Use this system to operate the boom and turntable functions to lower the platform if the main power system fails due to engine or pump failure. Hold the engine/emergency power switch (refer to Figure 4.1 and 4.2) down to activate the emergency power system.

The length of time the pump can be operated depends on the capacity of the battery.

Emergency Lowering Knob

The emergency lowering knob may be used to lower the booms if the engine will not start and the emergency power system will not work. The knob is on the base end of the main boom lift cylinder (refer to Figure 4.3) under the left side of the turntable.

Ground Operation

Switch

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.

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Figure 4.3 – Emergency Lowering Knob

Emergency

Lowering Knob

Chapter 4 – Safety Devices

Ground Operation Switch

The ground operation switch (refer to Figure 4.1) prevents boom and platform movement if a control switch on the lower control panel is accidentally moved.

Hold the switch up to operate the machine from the lower controls.

Platform Foot Switch

Stepping down on the platform foot switch (refer to Figure

4.4) activates the upper controls.

Top Rail

Gravity

Lanyard

Anchors

Platform Foot

Switch

Gate

Mid Rail

Toeboard

The gates close automatically after entering or exiting the platform. The gate is part of the guardrail system and must be securely fastened after entering the platform.

Lanyard Anchors

Two lanyard anchors for fall restraint anchorage are provided below the upper controls at the front of the platform (refer to Figure 4.4).

Note The lanyard anchors are not for lifting or tying the machine down.

All personnel in the platform must connect their fall restraint device to a lanyard anchor before raising the platform. Do not use the aerial platform for personal fall ar- rest anchorage.

Tilt Alarm

If the aerial platform chassis is out of level more than 3.5 degrees when the main boom is raised or extended, an alarm will sound. The tilt alarm is located under the upper control box (refer to Figure 4.6).

Figure 4.4 – Platform

The foot switch must be engaged and a control must be moved to operate the boom, drive, and/or platform from the upper controls.

Guardrails

The guardrail system includes a top rail, mid rail, and toeboards around the sides of the platform (refer to Figure 4.4).

A gravity gate (refer to Figure 4.4) or an optional swinging gate (refer to Figure 4.5) allows for access to the platform.

Swinging

Gate

Tilt Alarm

Figure 4.6 – Tilt Alarm

ADanger

Retract and lower the main boom and then drive to a level surface when the tilt alarm sounds.

The tilt alarm is for added protection and does not justify operating on anything other than firm, flat, level surfaces.

Figure 4.5 – Platform

16 TB42/TB50 – 0075251EE

Platform Overload Sensing System

All functions are stopped from the upper and lower controls, when the platform overload limit is exceeded. The horn will sound intermittently and the red overload light (refer to Figure 4.7) will blink until the excess load is removed from the platform. At that time, the machine functions are again operational.

Note If the platform overload sensing system is tripped while operating the machine, the emergency power system may still be used for emergency machine operation from either the lower or upper controls.

Platform

Overload Light

Chapter 4 – Safety Devices

Engine

Temperature

Gauge

Platform

Overload Light

Figure 4.7 – Upper Controls

If the platform becomes significantly overloaded, or if an upward force on the platform exceeds approximately 445 N (100 lb), the system will enter into error mode, stopping all functions from the upper and lower controls. The horn will then sound constantly and the overload light will stay illuminated at the upper and lower controls (refer to Figure 4.7 and 4.8).

The system will remain in error mode until the excess load is removed from the platform and the emergency stop button or start switch is cycled off and back on, resetting the system. At that time, the machine functions are operational.

ADanger

The aerial platform can tip over if it becomes unstable. Death or serious injury will result from a tipover accident. Do not exceed the capacity values indicated on the platform rating placard.

The overload sensing system is not active when the machine is being driven with the booms in the stowed position. This allows the machine to be driven without the system sensing an overload due to rough ground conditions.

Figure 4.8 – Lower Control Panel

T o eliminate repeated tripping of the system during machine operation, there is a five second delay in machine functions following:

• starting the engine.

• placing the drive/boom selector switch in the boom position when the main boom is below horizontal and fully retracted.

• removing excess load from the platform.

Engine Protection Systems

A constant tone alarm will sound to warn against high engine temperature or low oil pressure.

The engine will shut-down if the operating temperature exceeds a preset level or if the oil pressure is too low for safe operation. An engine temperature gauge is on the lower control panel (refer to Figure 4.8).

High Engine Temperature Alarm

If the coolant in a Cummins engine exceeds the engine operating temperature an alarm will sound and the engine will shut off.

If the oil in a Deutz engine exceeds 110°C (230°F) an alarm will sound and the engine will shut off. Any time there is no alternator current being produced, an alarm will sound and the engine will shut off. This prevents high engine temperature if the fan belt breaks.

Do not restart the engine until the condition that caused the overheating has been corrected.

TB42/TB50 – 0075251EE 17

+ 47 hidden pages

Snorkel TB50 CE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual