Snorkel TB47J User Manual

OPERATOR’S

MANUAL

Part Number 0075182

March 2014

Replaces 0075182 April 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 contacts 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.

California

Proposition 65 Warning

Battery posts, terminals, and related accessories contain lead and lead components, chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

California

Proposition 65 Warning

Diesel and gasoline engine exhaust and some of its constituents are known by the State of California to cause cancer, birth defects or other reproductive harm.

Table of Contents

Chapter 1 – Introduction
Aerial Platform Features ............................................	1
Options .....................................................................	1
Operator’s Manual .....................................................	1
Safety Alerts .............................................................	1
Operation ..................................................................	2
Maintenance .............................................................	2
Manual of Responsibilities .........................................	2
Additional Information ................................................	2
Chapter 2 – Specifications
Component Identification ...........................................	3
Working Envelope .....................................................	4
General Specifications ...............................................	5
Aerial Platform ........................................................	5
Platform ..................................................................	5
Function Speed .......................................................	5
Drive System ..........................................................	5
Tires .......................................................................	5
Electrical System ...................................................	5
Hydraulic System ...................................................	5
Engine ....................................................................	5
Fuel Tank Capacity .................................................	5
Ambient Air Temperature Operating Range ..............	5
Maximum Wind Speed ............................................	5
Engine Specifications ................................................	6
Engine Oil Viscosity ..................................................	7
Cummins B3.3 ........................................................	7
Deutz F3L-2011F ....................................................	7
Ford LRG 425 .........................................................	7
Chapter 3 – Safety
Electrocution Hazards ...............................................	9
Minimum Safe Approach Distance .............................	9
Prestart Inspection ...................................................	10
Work Place Inspection and Practices.......................	10
Operation .................................................................	10
Tip-Over and Falling Hazards ....................................	10
Electrical System.....................................................	11
Hydraulic System.....................................................	11
Engine and Fuel Handling Precautions .....................	11
Placards and Decals ................................................	12
Chapter 4 – Safety Devices
Emergency Stop Controls ........................................	13
Emergency Power System .......................................	13
Emergency Lowering Knob .......................................	13
Ground Operation Switch .........................................	14
Platform Foot Switch ................................................	14
Guardrails ................................................................	14
Lanyard Anchors ......................................................	14
Ground Fault Circuit Interrupter ................................	14
Tilt Alarm ..................................................................	15

Engine Protection Systems......................................	15
High Engine Temperature Alarm ............................	15
Low Oil Pressure Alarm ........................................	15
Horn .........................................................................	16
Drive Motion Alarm ...................................................	16
Flashing Light ..........................................................	16
Driving Lights............................................................	16
Platform Work Lights ...............................................	16
Chapter 5 – Gauges and Displays
Hour Meter ...............................................................	17
Engine Temperature Gauge ......................................	17
Ammeter ..................................................................	17
Engine Air Filter Gauge ............................................	17
Fuel .........................................................................	17
Engine Oil ................................................................	18
Hydraulic Fluid Filter Gauge .....................................	18
Fluid Level and Temperature Gauge ..........................	18
Chapter 6 – Controls
Battery Disconnect Switch .......................................	19
Lower Controls .........................................................	19
Start Switch ..........................................................	19
Emergency Stop Button ........................................	19
Control Switch ......................................................	19
Ground Operation Switch ......................................	20
Rotation Switch.....................................................	20
Boom Elevation Switch .........................................	20
Boom Extend/Retract Switch ................................	20
Jib Articulation Switch ...........................................	20
Platform Level Switch ............................................	20
Platform Rotation Switch .......................................	20
Engine/Emergency Power Switch .........................	20
Throttle Switch ......................................................	20
Fuel Switch ...........................................................	20
Circuit Breaker Reset Buttons ...............................	20
Upper Controls .........................................................	21
Start Switch ..........................................................	21
Emergency Stop Button ........................................	22
Speed Knob ..........................................................	22
Boom Joystick ......................................................	22
Drive Joystick .......................................................	22
Drive Range Switch ...............................................	22
Jib Articulation Switch ...........................................	22
Boom Extend/Retract Switch ................................	22
Platform Rotate Switch .........................................	22
Platform Level Switch ............................................	22
Engine/Emergency Power Switch .........................	23
Throttle Switch ......................................................	23
Horn Button ..........................................................	23
Platform Foot Switch.............................................	23
Machine/Generator Switch .......................................	23
Dual Fuel .................................................................	23
Driving and Platform Work Lights..............................	23

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Table of Contents

Chapter 7 – Prestart Inspection
Operator’s Manual ....................................................	25
Engine .....................................................................	25
Oil Level ................................................................	25
Coolant .................................................................	25
Radiator ................................................................	26
Fuel Tank ..............................................................	26
Fuel Line ...............................................................	26
Air Filter ................................................................	26
Charging System ..................................................	27
Cold Weather Start Kit—Block Heater ...................	27
Electrical System.....................................................	27
Emergency Power Battery ....................................	27
Battery Fluid Level ................................................	27
Battery Terminals ..................................................	27
Cables and Wiring Harness ......................................	27
Hydraulic System.....................................................	27
Fluid Level .............................................................	27
Fluid Filter .............................................................	28
Hoses, Tubes, and Fittings ...................................	28
Tires and Wheels .....................................................	28
Air Filled ...............................................................	28
Foam Filled ...........................................................	29
Lower Control Station ...............................................	29
Operating Controls ................................................	29
Emergency Stop ...................................................	29
Emergency Power .................................................	29
Emergency Lowering ................................................	29
Level Sensor ............................................................	30
Flashing Light ..........................................................	30
Sandblast Protection Kit ..........................................	30
Structures ................................................................	30
Weldments ...........................................................	30
Slide Pads ............................................................	31
Wire Ropes ...........................................................	31
Fasteners .............................................................	31
Upper Control Station ...............................................	32
Guardrail System ..................................................	32
Lanyard Anchors ...................................................	32
Operating Controls ................................................	32
Emergency Stop ...................................................	33
Emergency Power .................................................	33
Horn ......................................................................	33
Electrical Power Outlet .........................................	33
Drive Motion Alarm ................................................	33
Driving and Work Lights ........................................	33
Platform Control Cover ..........................................	33
Tow Kit .....................................................................	34
Placards and Decals ................................................	34
Prestart Inspection Checklist ...................................	39

Chapter 8 – Operation
Cold Weather Start-Up .............................................	41
Engine Cold Weather Start Kit..................................	41
Cummins and Ford — 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 Speeds .........................................................	44
Motion Warning Alarm ...........................................	44
Four Wheel Drive ......................................................	44
Electrical Power Outlet.............................................	44
AC Generator ...........................................................	44
Dual Fuel .................................................................	45
Air Line ....................................................................	45
Driving Lights............................................................	45
Platform Work Lights ...............................................	45
Chapter 9 – Stowing and Transporting
Stowing ....................................................................	47
Tucked Stow .........................................................	47
Transporting .............................................................	48
Driving ...................................................................	48
Winching ..............................................................	48
Hoisting ................................................................	49
Securing for Transport ...........................................	50
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

TB47J – 0075182

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

•170 degree hydraulic platform rotation

•Two safety lanyard attachments

•Manual lowering valve at chassis

•125 volt AC electrical outlet with GFCI at platform

•Hydraulic oil level and temperature gauges

•Lifting lugs

•Tie-down lugs

•5 degree tilt alarm

•Electronic ignition

•Hour meter

•Ammeter

•Coolant temperature gauge

•High engine temperature shut down

•Low oil pressure shut down

•Pneumatic tires

•Battery operated emergency power system

•360 degree continuous turntable rotation

•60″ x 30″ steel platform

•Platform gravity gate

. • Five year limited warranty

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

•Cummins B3.3 – Diesel

•Deutz F3L-2011F – Diesel

•Ford LRG 425 – Gasoline, LPG, or dual fuel

The aerial platform has been manufactured to conform to all applicable requirements of the following organizations.

•Occupational Safety and Health Administration (OSHA)

•American National Standards Institute (ANSI)

•Canadian Standards Association (CSA)

Options

The following options may be provided on the machine.

•Four wheel drive

•Horn

•Platform control cover

•Platform work lights – flood lights

•Flashing light – red or amber

•Platform swinging gate

•Sandblast protection kit

•Driving lights – two headlights and two rear lights

•Dual fuel or LPG gas only

•Spark arrestor muffler – Deutz engines

•Cold weather start kit Deutz – manifold preheater

•Cold weather start kit Ford – block heater

•AC generator – hydraulic powered, 110V, 2000W

•Drive motion alarm

•Foam filled tires

•Road tread tires

•Flotation tires

•Airline to platform

•Tow kit

•30″ x 92″ aluminum 500 lb capacity platform

•30″ x 60″ aluminum 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.

AWarning

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

ACaution

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.

TB47J – 0075182

1

Chapter 1 – Introduction

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

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. You 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.

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

Manual of Responsibilities

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

ANSI publications clearly identify the responsibilities of all personnel who may be involved with the aerial platform. Areprint of the “Manual of Responsibilities for Dealers, Owners, Users, Operators, Lessors and Lessees of ANSI/SIAA92.5-1992 Boom-Supported Elevating Work Platforms” is available from Snorkel dealers or from the factory upon request.

Copies are also available from:

Scaffold Industry Association, Inc.

P. O. Box 20574

Phoenix, AZ 85036-0574 USA

Additional Information

For additional information contact your local dealer or Snorkel at:

Snorkel International P.O. Box 1160

St. Joseph, MO 64502-1160 USA 1-800-255-0317

http://www.snorkelusa.com

2	TB42/420/50 – 0074923

Chapter 2 – Specifications

Component Identification

		Wiring Box	Operator’s
	LP Fuel Tank	Fuel Tank	Manual
			Lower Controls

Upper Controls

Drive Wheels	Chassis
	Steer Wheels
(Two Wheel Drive)

Right Side

Emergency		(Two Wheel Drive)	Foot Switch
Lowering	Hydraulic Fluid Tank
Valve	And Filter	Battery Disconnect Switch Main Boom
			Intermediate
Engine			Boom
			Platform
		Batteries
		Tip Boom
			Jib
	Steer Wheels	Drive Wheels	Platform

Left Side

TB47J – 0075182

3

Chapter 2 – Specifications

Working Envelope

Feet
(Meters)
50
(15.2)
40
(12.2)
30
(9.1)
			75°
20
(6.1)
10
(3.0)	70°
	70°
		18°
0
40	30	20	10		10
(12.2)	(9.1)	(6.1)	(3.0)	0	(3.0)
4					TB47J – 0075182

				Chapter 2 – Specifications
General Specifications
Aerial Platform		52′ 6″ (16 m)	Drive System
Working height			Standard		Two wheel drive
Maximum platform height		46′ 6″ (14.2 m)	Optional		Four wheel drive
Horizontal reach		39′ (11.9 m)	Gradeability		25%
Main boom
Articulation		-18° to +75°	Tires
Extension		9′ 5.7″ (2.8 m)	Street tread, 10 ply	12″ x 16.5″ (30 cm x 42 cm)
Turntable rotation		360° continuous	Bar lug, 10 ply	12″ x 16.5″ (30 cm x 42 cm)
Turning radius, inside		5′ 2″ (1.6 m)	Flotation, 10 ply		33/16LL-16.1
Two wheel drive			Foam filled, 10 ply		Street tread or bar lug
Four wheel drive		5′ 6″ (1.7 m)
Wheelbase		8′ (2.4 m)	Electrical System
Ground clearance		10″ (25 cm)	Voltage	12 V DC negative chassis ground
Maximum wheel load		5,500 lbs (2,495 kg)	Source
Maximum ground pressure		54 psi (3.8 kg/cm²)	Gas engine	One -12 V 600 CCA battery
Weight, GVW			Diesel engine	Two - 12 V 600 CCA batteries
Approximate		13,500 lbs (6123 kg)	Fluid recommended		distilled water
Stowed width		7′ 11.5″ (2.4 m)
With flotation tires		8′ 7.5″ (2.6 m)	Hydraulic System
Stowed length		26′ 9″ (8.1 m)	Maximum pressure	3,000 psi (20,684 kPa)
Stowed length, tucked stow		21′ 3.5″ (6.5 m)	Reservoir capacity		16.5 US gal (62.4 l)
Stowed height		7′ 9″ (2.3 m)	System capacity		25 US gal (94.6 l)
Stowed height, tucked stow		7′ 11.5″ (2.4 m)	Maximum operating temperature		200°F (93°C)
Platform			Hydraulic fluid recommended
			Above 10°F (-13°C)		Mobil DTE-13M
Dimensions	30″ x 60″ (76 cm x 152 cm)				(ISO VG32)
Standard steel			Below 10°F (-13°C)		Mobil DTE-11M
Rated work load		500 lb (227 kg)			(ISO VG15)
Optional aluminum	30″ x 92″ (76 cm x 234 cm)
Rated work load		500 lb (227 kg)	Engine
Optional aluminum	30″ x 60″ (76 cm x 152 cm)		Diesel		Cummins B3.3
Rated work load		600 lb (227 kg)	Diesel		Deutz F3L-2011F
Rotation		90° CW to 80° CCW	Gasoline and/or LPG		Ford LRG 425
Maximum number of occupants		2 people
Optional AC generator	110 V, 17.4 amp, 2,000 watt		Fuel Tank Capacity
Function Speed			Gasoline or diesel		20 US gal (75.7 l)
			LPG		43.5 lbs (19.7 kg)
Turntable rotation, 360 degrees		100 to 110 seconds	Dual fuel gasoline		20 US gal (75.7 l)
Main boom					43.5 lbs (19.7 kg)
Up		40 to 45 seconds
Down		40 to 45 seconds	Ambient Air Temperature Operating Range
Extend		40 to 45 seconds	Fahrenheit		0°F to 110°F
Retract		25 to 30 seconds	Celsius		-18°C to 43°C
Jib
Up		25 to 35 seconds	Maximum Wind Speed
Down		25 to 35 seconds	Gust or steady		28 mph (45 km/h)
Platform rotation, 170 degrees		8 to 15 seconds
Drive
High, booms stowed		3.0 mph (4.8 km/h)
Low, booms elevated		1.0 mph (1.6 km/h)

TB47J – 0075182

5

Chapter 2 – Specifications

Engine Specifications

	Engine	CID		Fuel Grade	Coolant	Operating	Oil	Oil
						Temperature	Capacity	Grade
	Cummins			ASTM No. 2D fuel with a			2 gal (7.5 liter)	SAE
		199 cu. in.		minimum Cetane number of	50% water	140°F to 212°F		15W-403
	B3.3			40.1 For operating tempera-			total
		(3.26 liter)		tures below 32°F (0°C) use	50% Antifreeze2	60°C to 100°C	1.6 qt (1.5 liter)	API:
	Diesel						Low to High
				winterized No. 2D.				CH4/SG
			•	DIN 51 601 (February 1986).1
			• BS 2869: A1 and A2 (with A2
	Deutz			refer to Deutz manual about
				sulfur content)1
	F3L-2011F	125 cu. in.	• ASTM D 975-88: 1-D and 2-D		Air	172°F to 203°F	1.59 US gal	API: CD
	Diesel	(2.0 liter)	•	CEN EN 590 or DIN EN 590		78°C to 95°C	(6.0 liter)	or higher3
			• NATO Code F-54 and F-75
			•	For operating temperatures
				below 32°F (0°C) use winter
				grade diesel.
				Gasoline
				Unleaded 87 or 89
				octane.1 Do not use
				gasoline blends with
	Ford	153 cu. in.		more than 10% ethanol	50% water	195°F to 220°F	4.5 US qt	API: SH
				by volume octane index
	LRG 425	(2.5 liter)		of 87 or 89.	50% Antifreeze4	91°C to 104°C	(4.26 liter)	or SJ3
				LPG
				HD-5 USA1
				EN589 European

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 Engines for specific coolant recommendations and specifications.

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

Note 4: Refer to the Ford® engine manual for specific coolant recommendations and specifications.

6	TB47J – 0075182

Chapter 2 – Specifications

Engine Oil Viscosity

Cummins B3.3

Deutz F3L-2011F

Ford LRG 425

TB47J – 0075182			7

Chapter 2 – Specifications

8	TB47J – 0075182

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 alerts 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 Distance

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. Table 1 and Figure 3 are reprinted courtesy of Scaffold Industry Association, ANSI/SIAA92.5

Voltage Range	Minimum Safe Approach Distance
(Phase to Phase)
	Feet		Meters
0 to 300V		Avoid Contact
Over 300V to 50kV	10		3.05
Over 50kV to 200kV	15		4.60
Over 200kV to 350kV	20		6.10
Over 350kV to 500kV	25		7.62
Over 500kV to 750kV	35		10.67
Over 750kV to 1000kV	45		13.72

Table 1 – Minimum Safe Approach Distance

Figure 3 – Minimum Safe Approach Distance

TB47J – 0075182

9

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.

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.

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

Before using the aerial platform in any hazardous (classified) location, make certain it is approved and of the type required by ANSI/NFPA 505 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.

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.

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. 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.

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

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 sepa-

10	TB47J – 0075182

Chapter 3 – Safety

rately 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 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.

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.

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.

Operate dual fuel machines on LPG fuel when indoors to reduce exhaust fumes and carbon monoxide.

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.

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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.

Never use fuel for cleaning purposes.

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

ACaution

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.

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-posi- tion 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

Emergency

Power Switch

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.

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

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

			Emergency
	Emergency
			Power Switch
	Stop Button

Figure 4.2 – Upper Controls

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 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.

Emergency

Lowering Knob

Figure 4.3 – Emergency Lowering Knob

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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	Mid Rail
	Gate
Lanyard
Anchors
Platform Foot
Switch		Toeboard

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

Figure 4.5 – Platform

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 arrest anchorage.

Ground Fault Circuit Interrupter

The electrical power outlet at the platform contains a ground fault circuit interrupter (GFCI) to provide protection for personnel.

Electrical

Power Outlet

Figure 4.6 – Electrical Power Outlet

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Chapter 4 – Safety Devices

Tilt Alarm

If the aerial platform chassis is out of level more than five 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 4.7).

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.

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

Tilt Alarm

Figure 4.7 – Tilt Alarm

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

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).

Engine

Temperature

Gauge

Figure 4.8 – Lower Control Panel

High Engine Temperature Alarm

If the coolant in a Ford or 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 230°F (110°C) 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.

Low Oil Pressure Alarm

The low oil pressure alarm sounds when the engine oil pressure is near the lower limit for safe engine operation. If the alarm sounds, lower the platform to the ground and then turn the engine off. Do not restart the engine until the condition that caused the low oil pressure has been corrected.

If the engine oil pressure falls below a safe operating value the engine will shut off. The engine can be restarted with low oil pressure, but it will only run a few seconds before it shuts off again.

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Chapter 4 – Safety Devices

Horn

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

Drive Motion Alarm

An optional drive motion alarm may be provided on the machine. When the drive/steer control is moved out of neutral the alarm sounds, in short beeps, to warn personnel in the work area to stand clear.

Flashing Light

An optional red or amber flashing light may be located on the top of the boom near the base end (refer to Figure 4.9). The flashing light warns personnel that the aerial platform is in the area.

Driving Lights

Optional headlights and blinking tail lights may be installed on the machine. The headlights are located on the top of the front cowling. The tail lights are mounted on the sides of the rear cowling.

Driving lights help improve visibility while driving the aerial platform and help others see it too. Driving lights are not for driving on public roadways.

Platform Work Lights

Optional platform work lights may be located on the top rail of the platform, one on each side of the upper control panel.

Use the platform lights to improve visibility while working aloft in dimly lit areas. Do not use the platform work lights to drive on public roadways.

Flashing Light

Figure 4.9 – Flashing Light
The light flashes at about one flash per second when the
engine is running.	Figure 4.10 – Platform Work Lights

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Chapter 5 – Gauges and Displays

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

Hour Meter

The hour meter is located on the wiring box on the left side of the lower controls (refer to Figure 5.1). It measures the accumulated engine operating time.

Hour

Meter

Figure 5.1 – Wiring Box

Engine Temperature Gauge

The temperature gauge is located on the lower control panel (refer to Figure 5.2).

Engine

Temperature

Gauge

Ammeter

On liquid cooled engines it shows the temperature of the water and antifreeze mixture in the engine block. The gauge on air cooled engines shows the temperature of the engine oil as the oil leaves the filter.

Ammeter

The ammeter is located on the lower control panel (refer to Figure 5.2). The ammeter displays the level of current flow from the alternator to the batteries.

After the engine has been running for a few minutes under normal operating conditions, the ammeter gauge indicator should read “0.”

Engine Air Filter Gauge

The air filter gauge (refer to Figure 5.3) is located above the lower control panel. The gauge measures the air pressure between the intake manifold and the air filter.

Air Filter

Gauge

Reset Button

Figure 5.3 – Air Filter Gauge

The yellow indicator disk inside the sight glass stays at its highest level when the engine is turned off.

When the yellow indicator disk reaches the red area, it’s time to change the filter element. After changing the filter, press the reset button to reset the indicator disk to the bottom of the sight glass.

Fuel

The fuel tank is translucent (refer to Figure 5.4). The amount of fuel in the tank can be gauged by raising the doors on the right side of the machine and looking at the tank.

Note

Do not run a diesel fuel tank empty. Air in the fuel line makes the engine hard to start.

Figure 5.2 – Lower Controls

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Chapter 5 – Gauges and Displays

Fuel Level

Figure 5.4 – Gasoline or Diesel Fuel Tank

LPG tanks have a fuel gauge that has two scales. One scale measures the fuel level when the tank is mounted vertical and the other is used when the tank is mounted horizontal (refer to Figure 5.5).

Hydraulic Fluid Filter Gauge

The fluid filter gauge (refer to Figure 5.6) is located on the return line filter on the left side of the reservoir. The reservoir is behind the door on the left side of the turntable. During high pump flow situations, the gauge indicates the condition of the filter. When the needle on the gauge is in the red zone, it is time to change the filter.

Filter Gauge

Horizontal Fuel Gauge

Figure 5.5 – LPG Fuel Tank

The LPG tank is mounted horizontally behind the door on the right side of the turntable. Read the horizontal scale to determine the fuel level.

Engine Oil

The engine oil level is measured with a dipstick. The dipstick is the only way to accurately determine the engine oil level. The engine oil level should always be between the add and full marks on the dipstick.

Figure 5.6 – Hydraulic Fluid Filter Gauge

Fluid Level and Temperature Gauge

A gauge on the right end of the reservoir displays the level and temperature of the hydraulic fluid (refer to Figure 5.7).

Fluid Level and

Temperature Gauge

Figure 5.7 – Hydraulic Fluid Gauge

If the temperature rises above 200°F (93°C) stop machine operation and let the fluid cool before resuming operation.

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