Snorkel S3219E User Manual

OPERATOR’S

MANUAL

Part Number 1500834

July 2014

Serial number 000000 and after

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, scissors structure, 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, scissors structure, 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, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

Table of Contents

Electrical Danger...............................	inside front cover
Proposition 65 Warning.....................	inside front cover
Chapter 1 – Introduction
Aerial Platform Features.............................................		1
Options........................................................................		1
Operator’s Manual......................................................		1
Safety Alerts................................................................		1
Operation....................................................................		1
Maintenance................................................................		2
Manual of Responsibilities..........................................		2
Additional Information.................................................		2
Chapter 2 – Specifications
Component Identification............................................		3
General Specifications – S3219E...............................		4
Aerial Platform.........................................................		4
Platform....................................................................		4
Function Speed........................................................		4
Drive System............................................................		4
Drive/Lift Level Sensor Interlock..............................		4
Tires.........................................................................		4
Electrical System.....................................................		4
Hydraulic System.....................................................		4
Ambient Air Temperature Operating Range		.............4
Maximum Wind Speed.............................................		4
Chapter 3 – Safety
Electrocution Hazards.................................................		5
Minimum Safe Approach Distance..............................		5
Prestart Inspection......................................................		6
Work Place Inspection and Practices..........................		6
Operation....................................................................		6
Tip-Over and Falling Hazards.....................................		6
Electrical System.........................................................		7
Hydraulic System........................................................		7
Placards and Decals...................................................		7
Chapter 4 – Safety Devices
Emergency Stop Controls...........................................		9
Control Select/Ground Operation Switch....................		9
Upper Control Interlock Switch....................................		9
Drive Motion Alarm....................................................		10
Pothole Protector Skids.............................................		10
Drive/Lift Pothole Protector Interlock.........................		10
Drive/Lift Level Sensor Interlock...............................		10
Lowering Alarm.........................................................		10
Emergency Lowering Lever......................................		10
Safety Prop...............................................................		11
Guardrails..................................................................		11
Ground Fault Circuit Interrupter................................		11
Tilt Alarm...................................................................		11
Horn..........................................................................		11
Flashing Light............................................................		11

Chapter 5 – Gauges and Displays
Battery Charge Indicator ..........................................	13
Battery Condition Indicator........................................	13
Diagnostic Center Display.........................................	13
Chapter 6 – Batteries
General Maintenance................................................	15
Charging....................................................................	15
Chapter 7 – Controls
Battery Disconnect....................................................	17
Lower Controls..........................................................	17
Emergency Stop Button.........................................	17
Control Selector/Ground Operation Switch............	17
Platform Raise/Lower Switch.................................	17
Upper Controls..........................................................	18
Emergency Stop Button.........................................	18
Drive/Lift Selector Switch.......................................	18
Joystick..................................................................	18
Interlock Switch......................................................	19
Steer Switch...........................................................	19
Drive Range Switch – S4732E...............................	19
Horn Button............................................................	19
Battery Condition Indicator.....................................	19
Circuit Breaker Reset Button.....................................	19
Chapter 8 – Prestart Inspection
Operator’s Manual....................................................	21
Electrical System.......................................................	21
Battery Fluid Level.................................................	21
Battery Terminals...................................................	22
Battery Charger......................................................	22
Safety Prop...............................................................	22
Cables and Wiring Harness......................................	23
Hydraulic System......................................................	23
Fluid Level..............................................................	23
Hoses, Tubes, and Fittings....................................	23
Free-Wheeling Valve..............................................	23
Diagnostic Center Display.........................................	24
Tires and Wheels......................................................	24
Ground Strap.............................................................	24
Lower Control Station................................................	24
Operating Controls.................................................	24
Emergency Stop....................................................	25
Lowering Alarm......................................................	25
Pothole Protector Interlock.....................................	25
Emergency Lowering System...................................	26
Structures..................................................................	26
Weldments.............................................................	26
Rollers and Slide Blocks........................................	26
Fasteners...............................................................	27
Upper Control Station................................................	27
Guardrail System...................................................	27
Platform Extension.................................................	27
Operating Controls.................................................	28
Emergency Stop....................................................	29
Horn Button............................................................	29
Lowering Alarm......................................................	29
Drive Alarm............................................................	29

S3219E/S4732E – 1500834

Table of Contents

Electrical Power Outlet..............................................	29
Flashing Light............................................................	29
Placards and Decals.................................................	30
Prestart Inspection Checklist.....................................	33
Chapter 9 – Operation
Preparing for Operation.............................................	35
Lower Controls..........................................................	35
Upper Controls..........................................................	35
Platform.....................................................................	36
Raising and Lowering............................................	36
Extending...............................................................	36
Driving and Steering..................................................	37
Drive Range Switch – S4732E...............................	37
Drive Speeds ........................................................	38
Drive/Lift Level Sensor Interlock............................	38
Swing-Out Trays........................................................	38
Electrical Power Outlet..............................................	39

Chapter 10 – Stowing and Transporting

Stowing.....................................................................	41
Transporting..............................................................	41
Lifting With a Forklift..............................................	41
Winching................................................................	42
Driving....................................................................	42
Hoisting..................................................................	43
Securing for Transport...........................................	44
Chapter 11 – Emergency Operation
Emergency Lowering................................................	45
Towing.......................................................................	45
Chapter 12 – Troubleshooting
Troubleshooting Chart...............................................	47
Appendix A – Glossary
Limited Warranty

S3219E/S4732E – 1500834

Chapter 1 – Introduction

Aerial Platform Features

The aerial platform is a self-propelled scissors lift that has been designed to raise personnel, their tools, and material to the workstation. The aerial platform has been designed for use on hard surface floors such as concrete.

The S3219E uses a single hydraulic cylinder to raise and lower the platform. The S4732E machines have two hydraulic cylinders to raise and lower the platform. A hydraulic motor on each of the front drive wheels provides power to move the aerial platform.

The standard machine includes the following features:

Proportional drive and lift up control

Driveable at full height

Two speed drive – S4732E

Drive motion alarm

Non-marking tires

Automatic pothole protection system

Level sensor with drive/lift interlock

Diagnostic Center Display

Battery condition indicator

Manual lowering valve

Lockable battery disconnect switch

Tie-down/lifting lugs

Heavy duty battery charger

Swing-out hydraulic component and battery trays

Non-slip metal platform floor

Three foot platform extension

125 volt AC electrical outlet with GFCI

Scissor arm safety support prop

Lowering alarm

Horn

Forklift loadable from three sides

Rear forklift pockets

Saloon style entry doors

Five year limited warranty

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:

 Flashing light

Operator’s Manual

This manual provides information for safe and proper operation of the aerial platform. Some information in this manual refers to options that may or may not be on your machine. 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.

Danger

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.

Warning

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

Caution

Indicates a potentially hazardous situation which, if notavoided,mayresultinminorormoderateinjury.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.

Warning

The potential for an accident increases when the aerial platform is operated by personnel who are not trained and authorized. Death or serious injury could 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.

S3219E/S4732E – 1500834

1

Chapter 1 – Introduction

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.

The operator 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.

Caution

Welding current can be very intense. Damage to electronic components may result. Connect the ground clamp as close as possible to the area being welded. Disconnect battery cables and any microprocessors and 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 consentoftheSnorkelEngineeringDepartment.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. A reprint of the “Manual of Responsibilities for Dealers, Owners, Users, Operators, Lessors and Lessees of ANSI/SIA A92.6-2006 Self-Propelled 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.snorkellifts.com

S3219E/S4732E – 1500834

Chapter 2 – Specifications

Component Identification

Platform

Platform Extension

Toeboards

Emergency

Entry Lowering Lever

Step

Serial

Number

Groundstrap			Drive and Steer
			Wheels
Control Valve Tray			Tie-Down/Lifting Lugs
Freewheeling Valve/Brake Release Valve Battery Tray
Hand Pump/Diagnostic Display
	Right Side		Front
Upper	Electrical
	Power Outlet	Guardrails
Controls
			Operator’s
			Manual
			Entry
			Doors

	Scissors			Forklift
	Structure	Tie-Down/Lifting		Pockets
		Lugs
	Chassis			Battery
			Power to Platform
				Charger
			Receptacle	Receptacle
	Battery Tray Hydraulic Tray	Pothole	Lower	Battery Charger
			Controls
	Pump/Reservior/Fluid Filter			LED Charge Indicators
	Left Side	Protector Skid
				Rear

S3219E/S4732E – 1500834

3

Chapter 2 – Specifications

General Specifications – S3219E

Aerial Platform			Drive System
Working height		25′ (7.6 m)	Standard			Two-wheel drive
Maximum platform height		19′ (5.8 m)	Gradeability			25%
Turning radius			Maximum drive height			19′ (5.8 m)
Inside		4″ (10.16 cm)
Outside		64.25″ (1.63 m)	Drive/Lift Level Sensor Interlock
Wheelbase		52″ (1.32 m)	Side-to-side			1.5 degrees
Ground clearance			Front-to-rear			4 degrees
Pothole protector raised		2.63″ (6.68 cm)
Pothole protector lowered		0.75″ (1.9 cm)	Tires
Maximum wheel load		1,416 lbs (642 kg)	Nonmarking solid rubber		12″ x 4″ (30.5 cm x 10.2 cm)
Maximum ground pressure		175 psi (12.3 kg/cm²)
Weight, EVW			Electrical System
Approximate		2,750 lbs (1,247 kg)	Voltage	24 V DC negative chassis ground
Stowed width		32″ (81.3 cm)	Source	Four - 6 V 220 amp hour batteries
Stowed length		70″ (1.78 m)	Fluid recommended			distilled water
With step removed		68.25″ (1.73 m)	Charger			25 amp
Stowed height		79″ (2.0 m)	Hydraulic System
Platform
			Maximum pressure		3,000 psi (20,684 kPa)
Dimensions			Reservoir capacity			3 US gal (11.35 l)
Main	28″ x 60.6″ (71.1 cm x 153.9 cm)		System capacity			3.5 US gal (13.2 l)
Extension	24″ x 47″ (61 cm x 119.4 cm)		Maximum operating temperature			160°F (71°C)
Total length with extension		98.75″ (250.8 cm)	Hydraulic fluid recommended
Guardrail height		39″ (99 cm)	Above 10°F (-12°C)		ISO VG32 (Mobil DTE-13M)
Toeboard height		6″ (15.2 cm)	Below 10°F (-12°C)		ISO VG15 (Mobil DTE-11M)
Rated work load
Total		550 lb (250 kg)	Ambient Air Temperature Operating Range
Extension		250 lb (113 kg)	Fahrenheit			0°F to 110°F
Maximum number of occupants		1 outdoors	Celsius			-18°C to 43°C
		2 indoors	Maximum Wind Speed
Function Speed
			Gust or steady			28 mph (12.5 m/s)
Platform raise		12 to 20 seconds
Platform lower		20 to 26 seconds
High Drive
Platform lower than 6′ (1.8 m)

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

Low Drive

Platform higher than 6′ (1.8 m)

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

S3219E/S4732E – 1500834

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.

Danger

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 A92.6.

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

D e n o te s p ro h ib ite d zo n e

Figure 3 – Minimum Safe Approach Distance

S3219E/S4732E – 1500834

5

Chapter 3 – Safety

Prestart Inspection

Perform a prestart inspection before each shift as described in Chapter 8. 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 by ANSI/NFPA 505 for use in that particular location.

Knowandunderstandthejobsitetraffic-flowpatternsand 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 scissors structure while operating the aerial platform

Danger

Pinchpointsmayexistbetweenmovingcomponents. Death or serious injury will result from becoming trappedbetweencomponents,buildings,structures, or other obstacles. Make sure there is sufficient clearance around the machine before moving the chassis or platform. Allow sufficient room and time

to stop movement to avoid contact with structures or other hazards.

Always look in the direction of movement.

Drive with 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.

Warning

The potential for an accident increases when operating an aerial platform that is damaged or malfunctioning. Death or serious injury could result from such accidents. Do not operate the aerial platform if it is damaged or malfunctioning.

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.

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

S3219E/S4732E – 1500834

Chapter 3 – Safety

wheel load and drive/lift level sensor interlock information. Raise the platform only when the aerial platform is on level ground.

Danger

Theaerialplatformcantipoverifitbecomesunstable. Death or serious injury will result from a tip-over 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 platform outdoors in wind speeds above 28 mph (12.5 m/s).

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

Do not raise the platform in winds above 28 mph (12.5 m/s). 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 entry doors closed. Make sure that all protective guards, cowlings, and doors are securely fastened.

Do not exceed the platform capacity nor the platformextension 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, railwaycars,floatingvessels,scaffolds,orsimilarequipment 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.

1.If you are using a fall restraint, transfer your anchorage from one structure to the other before stepping across.

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

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

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.

Warning

Batteriesgiveoffhydrogenandoxygenthatcancombine 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 could 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.

Ifacidcontactsyoureyes,flushimmediatelywithclear water and get medical attention.

If acid contacts your skin, wash off immediately with clear water.

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 scissors structure 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.

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:

Hydraulic System

The hydraulic system contains hoses with hydraulic fluid under pressure.

Danger

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.

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, damaged, or illegible.

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7

Chapter 3 – Safety

S3219E/S4732E – 1500834

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.

Warning

The potential for an accident increases when safety devices do not function properly. Death or serious injury could result from such accidents. Do not alter, disable, or override any safety device.

If any safety devices are defective, remove the aerial platformfromserviceuntilqualifiedmaintenancepersonnel 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 red push button (refer to Figure 4.1).

Control

Select/Ground

Operation Switch

Emergency

Stop Button

1 5 0 0 4 3 8

Figure 4.1 – Lower Controls

Push the emergency stop button inward to disconnect power to all control circuits.

Pull the button outward to restore power.

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 red push button (refer to Figure 4.2).

Emergency

Stop Button

Figure 4.2 – Upper Control Panel Front

Push the emergency stop button inward to disconnect power to the upper control circuits.

Pull the button outward to restore power.

Control Select/Ground Operation Switch

The control select/ground operation switch (refer to Figure 4.1) prevents platform movement if the platform raise/lower switch on the lower control panel is accidently moved.

Hold the switch downward continually in the lower control position to enable the platform raise/lower switch functions.

Upper Control Interlock Switch

The interlock switch (refer to Figure 4.3) prevents platform movement if the joystick on the upper control panel is accidently moved.

Engage the interlock by grasping the joystick and pulling the switch toward the handle to activate the steering, drive, or lift functions.

Interlock Switch

Figure 4.3 – Upper Control Panel Top

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9

Chapter 4 – Safety Devices

Drive Motion Alarm

When the joystick is moved out of neutral to drive the aerial platform, the alarm emits a loud beeping sound to warn personnel in the work area to stand clear.

Pothole Protector Skids

The pothole protector skids automatically lower when the platform is elevated approximately 24″ (61 cm). Ground clearance is reduced from 2.63″ (6 cm) to 3/4″ (1.9 cm) when the skids lock into position (refer to Figure 4.4).

Pothole Protector Skids

Figure 4.4 – Pothole Protector Skids

Danger

Theaerialplatformcantipoverifitbecomesunstable. Death or serious injury will result from a tip-over accident.Donotdriveorpositiontheaerialplatformfor elevated use within 4′(1.2 m) of any drop-off, hole, or other tip-over hazard.

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

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

Drive/Lift Pothole Protector Interlock

The aerial platform drive and lift functions are interlocked through a limit switch that senses whether or not the pothole protection linkage is locked into position. The drive/lift pothole interlock operates when the platform is elevated approximately 6′ (1.8 m).

If an obstruction under the skids, or some other impairment prevents the skids from locking into position, the drive and lift functions will not operate and an alarm will sound.

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

Drive/Lift Level Sensor Interlock

The aerial platform drive and lift functions are interlocked through a level sensor system. The drive/lift level sensor

interlock operates when the platform is elevated approximately 6′ (1.8 m).

If the chassis is tilted more than one and a half degrees side- to-side or more than four degrees front-to-rear, the drive and lift functions will not operate and an alarm will sound.

Lower the platform and drive to a level surface when the drive/lift level sensor alarm sounds.

The drive/lift level sensor system is for added protection anddoesnotjustifyoperatingonanythingotherthanfirm, flat, level surfaces.

Lowering Alarm

When the joystick is moved out of neutral to lower the platform, the alarm emits a loud beeping sound to warn personnel in the work area to stand clear.

Danger

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

Be careful when lowering the platform. Keep hands and fingers away from the scissors structures components.

Emergency Lowering Lever

The emergency lowering lever may be used to lower the platform if there is a malfunction in the hydraulic or electrical system. The lever is mounted at the front of the aerial platform (refer to Figure 4.5).

Emergency

Lowering Lever

Figure 4.5 – Front of Machine

Danger

Pinchpointsexistonthescissorsstructure.Deathor serious injury will result if the scissors structure lowers onto personnel within the scissors arms or under the raised platform. Stand clear while operating the emergency lowering lever to lower the platform.

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Chapter 4 – Safety Devices

Keep hands and fingers away from the scissors structure components.

Push downward on the lever to lower the platform.

Safety Prop

The safety prop (refer to Figure 4.6) is used to support the scissors structure when access to the scissors arm components or the chassis is required. Always use the safety prop when the platform is raised during inspection and maintenance.

Safety Prop

Figure 4.6 – Safety Prop

Guardrails

The guardrails (refer to Figure 4.7) help protect personnel from falling off the platform.

The guardrail system includes:

A top rail

A mid rail

Saloon style entry doors

Toeboards around the sides of the platform.

Top Rail

Entry Doors

Horn

Mid Rail

Toeboard

Figure 4.7 – Platform

The entry doors allow for access to the platform. The doors must be securely closed except when personnel are entering or leaving the platform.

Ground Fault Circuit Interrupter

The electrical power outlet (refer to Figure 4.8), at the platform contains a ground fault circuit interrupter (GFCI) to provide protection for personnel.

Figure 4.8 – Upper Controls

Tilt Alarm

An alarm will sound if the aerial platform chassis is out of level more than one and a half degrees side-to-side or four degrees front-to-rear when the platform is raised.

Danger

Theaerialplatformcantipoverifitbecomesunstable. Death or serious injury will result from a tip-over 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.

Completely lower the platform and 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.

Horn

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

The horn button is located on the front of the upper control panel (refer to Figure 4.7).

Flashing Light

An optional red or amber flashing light may be located at the rear of the aerial platform. The flashing light warns personnel that the aerial platform is in the area.

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

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Chapter 4 – Safety Devices

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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.

Battery Charge Indicator

The battery charger has three LED’s (refer to Figure 5.1) which indicate the charger status.

LED Charge Indicators

Figure 5.1 –Rear of Chassis

The LED’s are visible on the battery tray.

•30% red LED blinking – indicates that the batteries are 0% to 30% charged.

•60% red LED blinking – indicates that the batteries are 30% to 60% charged.

•90% red LED blinking – indicates that the batteries are 60% to 90% charged.

•100% green LED solid On – indicates that the charge cycle is complete.

Battery Condition Indicator

The battery condition indicator (refer to Figure 5.2) is located on the top of the upper control panel. When the light comes on, the lift function is cut out and drive speed is reduced to slow.

Battery Condition Indicator

Figure 5.2 – Top of Upper Controls

Diagnostic Center Display

The diagnostic center LCD display (refer to Figure 5.3) is located in the control valve tray on the right side of the

machine.

Figure 5.3 – Diagnostic Center LCD Display

When the battery disconnect and emergency stop button at the lower controls are in the on position, the LCD display shows:

•The accumulated aerial platform operating time

•The available battery power to operate the machine.

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Chapter 5 – Gauges and Displays

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