Snorkel AB60J CE User Manual

Operator’s

Manual

Part Number 0182099EE

March, 2006

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.

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 ....................................................	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
Vibration .................................................................	5
Sound Threshold ....................................................	5
Engine Specifications ...............................................	6
Cummins B3.3 ........................................................	6
Engine Oil Viscosity .................................................	6
Chapter 3 – Safety
Electrocution Hazards ..............................................	7
Minimum Safe Approach Distance ...........................	7
Prestart Inspection ...................................................	8
Work Place Inspection and Practices .......................	8
Operation..................................................................	8
Tip-Over and Falling Hazards...................................	8
Electrical System ......................................................	9
Hydraulic System .....................................................	9
Engine and Fuel Handling Precautions ....................	9
Placards and Decals ..............................................	10
Chapter 4 – Safety Devices
Emergency Stop Controls.......................................	11
Emergency Power System .....................................	11
Emergency Lowering Knobs ...................................	11
Ground Operation Switch .......................................	12
Platform Foot Switch ..............................................	12
Guardrails ...............................................................	12
Lanyard Anchors ....................................................	12
Tilt Alarm ................................................................	12
Platform Overload Sensing System ........................	13

Engine Protection Systems ....................................	14
High Engine Temperature Alarm ..........................	14
Low Oil Pressure Alarm .......................................	14
Horn .......................................................................	14
Drive Motion Alarm .................................................	14
Flashing Lights .......................................................	14
Driving Lights..........................................................	14
Platform Work Lights ..............................................	14
Chapter 5 – Gauges and Displays
Hour Meter .............................................................	15
Engine Temperature Gauge ...................................	15
Ammeter .................................................................	15
Engine Air Filter Gauge ..........................................	15
Fuel ........................................................................	15
Engine Oil ...............................................................	16
Hydraulic Fluid Filter Gauge ...................................	16
Fluid Level and Temperature Gauge ......................	16
Chapter 6 – Controls
Battery Disconnect Switch ......................................	17
Lower Controls .......................................................	17
Emergency Stop Button .......................................	17
Control Selector Switch ........................................	17
Start Switch ..........................................................	17
Ground Operation Switch .....................................	18
Rotation Switch ....................................................	18
Riser Boom Elevation Switch ...............................	18
Main Boom Elevation Switch ................................	18
Boom Extension Switch .......................................	18
Jib Articulation Switch ..........................................	18
Boom Speed Knob ...............................................	18
Platform Level Switch ...........................................	18
Platform Rotate Switch .........................................	18
Engine/Emergency Power Switch ........................	18
Throttle Switch .....................................................	18
Hydraulic System Warm-up Switch ......................	18
Circuit Breaker Reset Buttons ..............................	19
Upper Controls .......................................................	19
Emergency Stop Button .......................................	20
Start Switch ..........................................................	20
Drive/Boom Selector Switch .................................	20
Boom Joystick ......................................................	20
Riser Boom Elevation Switch ...............................	20
Boom Extension Switch .......................................	20
Jib Articulation Switch ..........................................	20
Boom Speed Knob ...............................................	21
Drive Joystick .......................................................	21
Drive Range Switch ..............................................	21
Platform Level Switch ...........................................	21
Platform Rotate Switch .........................................	21
Engine/Emergency Power Switch ........................	21
Throttle Switch .....................................................	21
Horn Button ..........................................................	21
Platform Foot Switch ............................................	21

AB60J – 0182099EE

Table of Contents

Machine/Generator Switch .....................................	22
Driving and Platform Work Lights ...........................	22
Chapter 7 – Prestart Inspection
Operator’s Manual ..................................................	23
Engine ....................................................................	23
Oil Level ...............................................................	23
Coolant .................................................................	23
Radiator ...............................................................	23
Fuel Tank .............................................................	24
Fuel Line ..............................................................	24
Air Filter................................................................	24
Charging System..................................................	24
Cold Weather Start Kit—Block Heater..................	24
Electrical System ....................................................	24
Emergency Power Battery....................................	24
Battery Fluid Level ...............................................	25
Battery Terminals .................................................	25
Cables and Wiring Harness ....................................	25
Hydraulic System ...................................................	25
Fluid Level ............................................................	25
Fluid Filter ............................................................	25
Hoses, Tubes, and Fittings...................................	25
Tires and Wheels ...................................................	26
Lower Control Station .............................................	26
Operating Controls ...............................................	26
Emergency Stop...................................................	27
Emergency Power ................................................	27
Emergency Lowering ..............................................	27
Level Sensor ..........................................................	27
Flashing Light .........................................................	28
Sandblast Protection Kit .........................................	28
Structures ...............................................................	28
Weldments ...........................................................	28
Slide Pads ............................................................	28
Fasteners .............................................................	29
Upper Control Station .............................................	29
Guardrail System .................................................	29
Lanyard Anchors ..................................................	29
Operating Controls ...............................................	29
Emergency Stop...................................................	30
Emergency Power ................................................	30
Horn .....................................................................	30
Electrical Power Outlet .........................................	30
Drive Motion Alarm...............................................	30
Driving and Work Lights .......................................	30
Platform Control Cover .........................................	30
Tow Kit ...................................................................	30
Placards and Decals ..............................................	31
Prestart Inspection Checklist ..................................	35

Chapter 8 – Operation
Cold Weather Start-Up ...........................................	37
Engine Cold Weather Start Kit ................................	37
Hydraulic System Cold Weather Warm-Up ............	37
Hydraulic System Warm-up Switch ......................	37
Manually Warming The Hydraulic System............	38
Preparing for Operation ..........................................	38
Lower Controls .......................................................	38
Upper Controls .......................................................	38
Boom Operation ...................................................	39
Driving and Steering .............................................	39
Drive Speeds........................................................	40
Motion Warning Alarm ..........................................	40
Platform Overload Sensing System ........................	40
Four Wheel Drive ...................................................	41
AC Generator .........................................................	41
Air Line ...................................................................	42
Driving Lights..........................................................	42
Platform Work Lights ..............................................	42
Chapter 9 – Stowing and Transporting
Stowing ..................................................................	43
Transporting ...........................................................	43
Driving ..................................................................	43
Winching ..............................................................	44
Hoisting ................................................................	45
Securing for Transport..........................................	45
Chapter 10 – Emergency Operation
Emergency Power System .....................................	47
Lower Controls .....................................................	47
Upper Controls .....................................................	47
Emergency Lowering ..............................................	48
Riser Boom ..........................................................	48
Main Boom ...........................................................	49
Towing ....................................................................	49
Chapter 11 – Troubleshooting
Troubleshooting Chart ............................................	51
Appendix A – Glossary
Limited Warranty

AB60J – 0182099EE

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

•Two safety lanyard attachments

•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 227 kg (500 lb) capacity platform

•Platform gravity gate

•Platform overload sensing system

•Five year limited warranty

The machine is powered with a Cummins B3.3 diesel engine.

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 – red or amber

•Platform swinging gate

•Sandblast protection kit

•Driving lights – two headlights and two rear lights

•Cold weather start kit Cummins – block heater

•Hydraulic system cold weather warm-up kit

•AC generator – hydraulic powered, 220 VAC

•Drive motion alarm

•Airline to platform

•Tow kit

•76 cm x 243 cm (30″ x 96″) aluminum 227 kg (500 lb) capacity platform

•76 cm x 152 cm (30″ x 60″) aluminum 227 kg (500 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.

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

AB60J – 0182099EE

1

Chapter 1 – Introduction

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.

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.

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 affect stability, 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

2	AB60J – 0182099EE

Chapter 2 – Specifications

Component Identification

Fuel Tank Hydraulic Fluid Tank

Upper Controls

Emergency Lowering Valve

Emergency

Lowering

Valve

	Chassis
Hydraulic Fluid Filter	Steer Wheels

Right Side

			Battery Disconnect Switch
Floating		Lower Controls	Battery	Engine	Main Boom	Tip Boom
Turret

Platform

Operator’s Manual

Jib Boom

Riser

Boom

	Steer Wheels	Platform
		Foot Switch

Left Side

AB60J – 0182099EE

3

Chapter 2 – Specifications

Working Envelope

Meters

(Feet)

19.8

(65)

18.4

(60)

16.8

(55)

15.2

(50)

13.7

(45)

12.2

(40)

10.7

(35)

9.1

(30)

7.6

(25)

6.1

(20)

4.6

(15)

3.0

(10)

1.5

(5)

0

1.5

(5)

3.0	1.5		1.5	3.0	4.6	6.1	7.6	9.1	10.7	12.2	13.7
(10)	(5)	0	(5)	(10)	(15)	(20)	(25)	(30)	(35)	(40)	(45)

4	AB60J – 0182099EE

				Chapter 2 – Specifications
General Specifications
Aerial Platform		20.11 m (66′)	Drive
Working height			4x4 and 4x2
Maximum platform height		18.29 m (60′)	High, booms stowed		5.1 km/h (3.2 mph)
Horizontal reach		13.1 m (43′ 1″)	Mid, booms stowed		2.9 km/h (1.8 mph)
Main boom elevation		-1° to +75°	4x4
Turntable rotation		360° continuous	Low, booms down/retracted		1.6 km/h (1 mph)
Turning radius, inside		2.45 m (8′)	Low, booms up/retracted		1 km/h (0.6 mph)
Two wheel drive			4x2
Four wheel drive		5.24 m (17′ 21/2″)	Low, booms down/retracted		1.1 km/h (0.7 mph)
Wheelbase		2.4 m (8′)	Low, booms up/retracted		1.1 km/h (0.7 mph)
Ground clearance		30 cm (1′)
Tailswing		1.54 m (5′)	Drive System
Stowed			Standard		Four wheel drive
Working		0 m (0′)	Optional		Two wheel drive
Maximum wheel load		5,670 kg (12,500 lbs)	Gradeability		20%
Maximum ground pressure		5.76 kg/cm² (82 psi)
Weight, EVW approximate	11,249 kg (24,800 lbs)		Tires
Stowed width		2.4 m (7′ 111/2″)	Foam filled		15-19.5, 12 ply
Stowed length		8.9 m (29′ 2″)
Stowed height		2.5 m (8′ 3″)	Electrical System
Platform			Voltage	12 V DC negative chassis ground
			Source	One - 12 V 550 CCA battery
Dimensions	76 cm x 152 cm (30″ x 60″)		Fluid recommended		distilled water
Standard steel
Rated work load		227 kg (500 lb)	Hydraulic System
Optional aluminum	76 cm x 152 cm (30″ x 60″)		Maximum pressure	20,700 kPa (3,000 psi)
Rated work load		227 kg (500 lb)	Reservoir capacity		94.6 l (25 US gal)
Optional aluminum	76 cm x 243 cm (30″ x 96″)		System capacity		132.5 l (35 US gal)
Rated work load		227 kg (500 lb)	Maximum operating temperature		93°C (200°F)
Rotation		90° CW to 90° CCW	Hydraulic fluid recommended
Maximum number of occupants		2 people	Above -13°C (10°F)		Mobil DTE-13M
Optional AC generator		220 VAC			(ISO VG32)
Function Speed			Below -13°C (10°F)		Mobil DTE-11M
					(ISO VG15)
Turntable rotation, 360 degrees		123 to 125 seconds
Main boom			Engine
Up		47 to 52 seconds	Diesel		Cummins B3.3
Down		47 to 52 seconds
Extend		30 to 38 seconds	Fuel Tank Capacity
Retract		30 to 38 seconds	Diesel		151.4 l (40 US gal)
Riser boom
Up		24 to 30 seconds	Ambient Air Temperature Operating Range
Down		16 to 20 seconds	Celsius		-18°C to 43°C
Jib boom			Fahrenheit		0°F to 110°F
Up		9 to 12 seconds
Down		7 to 11 seconds	Maximum Wind Speed
Platform rotation, 180 degrees		16 to 20 seconds	Gust or steady		45 km/h (28 mph)
			Vibration		less than 2.5 m/sec2
			Sound Threshold		below 97 dB(A)

AB60J – 0182099EE

5

Chapter 2 – Specifications

Engine Specifications

	Engine	Displacement	Fuel Grade	Coolant	Operating	Oil	Oil
					Temperature	Capacity	Grade
	Cummins		ASTM No. 2D fuel with a			7.5 liter (2 gal)	SAE
		3.26 liter	minimum Cetane number of	50% water	60°C to 100°C		15W-403
	B3.3		40.1 For operating tempera-			total
		(199 cu. in.)	tures below 0°C (32°F) use	50% Antifreeze2	140°F to 212°F	1.5 liter (1.6 qt)	API:
	Diesel					Low to High
			winterized No. 2D.				CH4/SG

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.

Engine Oil Viscosity

Cummins B3.3

6										AB60J – 0182099EE

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/SIA A92.5

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

AB60J – 0182099EE

7

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

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.

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.

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

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.

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.

8	AB60J – 0182099EE

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 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 battery 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.

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.

AB60J – 0182099EE

9

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.

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

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.

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.

10	AB60J – 0182099EE

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.

Engine/Emergency

Power Switch

Emergency

Stop Button

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		Engine/Emergency
Stop Button		Power Switch

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 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 Knobs

The emergency lowering knobs may be used to lower the booms if the engine will not start and the emergency power system will not work. There is a knob to lower the riser boom and one to lower the main boom. The riser boom knob (refer to Figure 4.3) is inside the rear of the turntable.

Emergency

Lowering Knob

Inside Turntable

Figure 4.3 – Riser Boom Emergency

Lowering Knob

AB60J – 0182099EE

11

Chapter 4 – Safety Devices

The main boom knob (refer to Figure 4.4) is behind the floating turret.

A gravity gate (refer to Figure 4.5) or an optional swinging gate (refer to Figure 4.6) allows for access to the platform.

Emergency

Lowering Knob

Figure 4.4 – Main Boom Emergency

Lowering Knob

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.

Swinging

Gate

Figure 4.6 – 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.

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 4.5) activates the upper controls.

	Top Rail
Lanyard	Gravity
Anchors	Gate
	Mid Rail
Platform Foot
Switch
	Toeboard

Figure 4.5 – 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 4.5).

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.

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 4.7).

Tilt Alarm

Figure 4.7 – Tilt Alarm

12	AB60J – 0182099EE

Chapter 4 – Safety Devices

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.

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

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 4.8) 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

Figure 4.8 – 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 4.8 and 4.9).

Platform

Overload Light

Figure 4.9 – Lower Control Panel

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.

To 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.

AB60J – 0182099EE

13

Chapter 4 – Safety Devices

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 gauge panel above the lower controls (refer to Figure 4.10).

Engine

Temperature

Gauge

Figure 4.10 – Engine Gauge Panel

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.

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.

Horn

The 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 emergency stop button and the start switches are both on, at the lower and 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 Lights

Optional red or amber flashing lights may be located on each side of the machine, on the top of the cowling (refer to Figure 4.11). The flashing lights warns personnel that the aerial platform is in the area.

Flashing Light

Figure 4.11 – Flashing Light

The light flashes at about one flash per second when the engine is running.

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.

Figure 4.12 – Platform Work Lights

14	AB60J – 0182099EE

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 front of the lower controls (refer to Figure 5.1). It measures the accumulated engine operating time.

Hour

Meter

Figure 5.1 – Lower Controls

Engine Temperature Gauge

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

Air Filter

Gauge

Engine

Temperature

Gauge

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 engine gauge 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 5.2) is located above the lower control panel. The gauge measures the air pressure between the intake manifold and the air filter.

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 gauge is on top of the fuel tank (refer to Figure 5.3). Read the gauge at the line in the clear plastic window. The fuel tank is behind the doors on the right side of the machine.

Note

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

Fuel Level

Reset Button

Ammeter

Figure 5.3 – Fuel Tank

Figure 5.2 – Engine Gauge Panel

AB60J – 0182099EE

15

Chapter 5 – Gauges and Displays

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.

Hydraulic Fluid Filter Gauge

The fluid filter gauge (refer to Figure 5.4) is located on the return line filter on the left side of the reservoir. The reservoir is behind the door on the right 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

Figure 5.4 – Hydraulic Fluid Filter Gauge

Fluid Level and Temperature Gauge

A gauge on the end of the reservoir displays the level and temperature of the hydraulic fluid (refer to Figure 5.5). The reservoir is behind the door on the right side of the turntable.

Fluid Level and

Temperature Gauge

Figure 5.5 – Hydraulic Fluid Gauge

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

16	AB60J – 0182099EE

Chapter 6 – Controls

ADanger

Pinch points may exist between moving components. Death or serious injury can result from being trapped between components, buildings, structures, or other obstacles. Make sure all personnel stand clear while operating the aerial platform.

Controls to position the platform are located on the lower control panel on the turntable and on the upper control panel in the platform. Drive controls are located on the upper control panel only.

•Ground operation switch

•Rotation switch

•Riser boom elevation switch

•Main boom elevation switch

•Boom extension switch

•Jib articulation switch

•Boom speed knob

•Platform level switch

•Platform rotate switch

•Engine/emergency power switch

•Throttle switch

•Hydraulic warm-up switch (option)

Battery Disconnect Switch

The battery disconnect is located behind the door on the left side of the turntable above the engine gauge panel (refer to Figure 6.1).

Battery Disconnect Switch

Figure 6.1 – Battery Disconnect Switch

The battery disconnect removes electrical power from all electrically controlled functions when in the off position. Place the switch in the on position to electrically connect the battery to the electrical system.

ACaution

Only authorized personnel should operate the aerial platform. Unqualified personnel may cause injury to coworkers or property damage. Lock the battery disconnect switch in the off position before leaving the aerial platform unattended.

Turn the battery disconnect switch off to prevent unauthorized use of the aerial platform.

Lower Controls

The lower controls (refer to Figure 6.2) are located on the right side of the turntable. Boom and platform functions can be operated from the lower controls. The following are located on the lower control panel.

•Emergency stop button

•Control selector switch

•Start switch

Figure 6.2 – Lower Controls

Emergency Stop Button

The emergency stop is a two-position, red push button. Push the button in to disconnect power to all control circuits. Pull the button out to restore power.

Control Selector Switch

Use the control switch to select between off, lower control, and upper control operation. Insert the key in the switch and turn the switch to the upper controls position to operate the aerial platform from the upper controls and in the lower controls position for lower controls operation.

Start Switch

The start switch works like an automobile ignition switch. Push the start button until the engine starts, then release it to on. If the engine dies, the control switch must be turned to off before the engine can be restarted.

AB60J – 0182099EE

17