Snorkel MHP 12/34J Aerial Work Platform Operator's Manual

P/N 11447A

April 2003

Bi-Energy and Self Level

Operator’s

Manual

Engine Powered

Gasoline

Battery Electric

LIMITED WARRANTY

Snorkel warrants each new machine manufactured and sold by it to be free from defects in material and workmanship for a period of one (1) year from date of delivery to a Customer or for one year after the machine has been placed in first service in a

Dealer rental fleet, whichever comes first. Any part or parts which, upon examination by the Snorkel Service Department, are found to be defective, will be replaced or repaired, at the sole discretion of Snorkel, through its local Authorized Dealer at no charge.

Snorkel further warrants the structural components; specifically, the mainframe chassis, turntable, booms and scissor arms, of each new machine manufactured by it to be free from defects in material and workmanship for an additional period of four

(4) years. Any such part or parts which, upon examination by the Snorkel Service Department, are found to be defective will be replaced or repaired by Snorkel through its local Authorized Dealer at no charge; however, any labor charges incurred as a result of such replacement or repair will be the responsibility of the Customer or Dealer.

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

Service Department prior to performing any warranty repair or replacement.

Customer and Dealer shall not be entitled to the benefits of this warranty and Snorkel shall have no obligations hereunder unless the “Pre-Delivery and Inspection Report” has been properly completed and returned to the Snorkel Service

Department within ten (10) days after delivery of the Sorkel product to Customer or Dealer’s rental fleet. Snorkel must be notified, in writing, within ten (10) days, of any machine sold to a Customer from a Dealer’s rental fleet during the warranty period.

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

Vendor to Dealer or Customer.

REPLACEMENT PARTS WARRANTY

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

THIS WARRANTY EXCLUDES AND SNORKEL DOES NOT WARRANT:

1. Engines, motors, tires and batteries which are manufactured by suppliers to Snorkel, who furnish their own warranty.

Snorkel will, however, to the extent permitted, pass through any such warranty protection to the Customer or Dealer.

2. Any Snorkel product which has been modified or altered outside Snorkel’s factory without Snorkel’s written approval, if such modification or alteration, in the sole judgment of Snorkel’s Engineering and/or Service Departments, adversely affects the stability, reliability or service life of the Snorkel product or any component thereof.

3. Any Snorkel product which has been subject to misuse, improper maintenance or accident. “Misuse” includes but is not limited to operation beyond the factory-rated load capacity and speeds. “Improper maintenance” includes but is not limited to failure to follow the recommendations contained in the Snorkel Operation, Maintenance, Repair Parts

Manuals. Snorkel is not responsible for normal maintenance, service adjustments and replacements, including but not limited to hydraulic fluid, filters and lubrication.

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

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

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

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

President-Marketing.

SNORKEL MAKES NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THIS LIMITED WARRANTY.

SNORKEL MAKES NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE

AND DISCLAIMS ALL LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT

LIMITED TO INJURY TO PERSONS OR PROPERTY.

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

Department for further assistance.

Effective July 1995

Electrical Hazard

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Electrical Hazard Warning

DANGER

THE SNORKELIFT AERIAL WORK PLATFORM

IS NOT ELECTRICALLY INSULATED.

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

GO NO CLOSER THAN THE MINIMUM SAFE APPROACH DISTANCES

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

ON THE NEXT PAGE.

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

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

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

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

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

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

DEATH.

DO NOT attempt to operate the Snorkelift ground controls when the platform, booms, or any other conducting part of a Snorkelift is in contact with electrical wires or if there is an immediate danger of such contact.

Regard all conductors as energized.

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

MHP12/34J – 11447A page - i

Electrical Hazard

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Minimum Safe Approach Distance

The Snorkelift is an all metal boom, NOT ELECTRICALLY INSULATED, aerial work platform. DO NOT operate it near ELECTRICAL conductors. Regard all conductors as being energized. Use the table and illustration below to determine safe clearance from electrical conductors. (Table 1 and Figure 3, below, are from

ANSI/SIA A92.5–1992 Standard, reprinted with permission of Scaffold Industry Association.)

❑

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

Minimum Safe Approach Distance to energized (exposed or insulated power lines)

Voltage range

(phase to phase)

0 to 300V over 300v to 50kv over 50kv to 200kv over 200kv to 350kv over 350kv to 500kv over 500kv to 750kv over 750kv to 1000kv

Minimum safe approach distance

(Feet) (Meters)

Avoid contact

10

15

20

25

3.05

4.60

6.10

7.62

35

45

10.67

13.72

❑

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

page - ii

Denotes prohibited zone

Danger:

Caution:

- Do not allow machine personnel or conductive materials inside prohibited zone.

- Maintain M.S.A.D. From all energised lines and parts as well as those shown.

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

- Diagrams shown are only for purposes of illustrating

M.S.A.D. Work positions, not all work positions.

MHP12/34J – 11447A

Introduction

The most important chapter in this manual is

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

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Signs

The following three conventions are used throughout this manual.

1. Danger sign

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

2. Caution sign

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

3. Note sign

NOTE

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

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Qualified operators

The Snorkelift aerial platform has built in safety features and has been factory tested for compliance with Snorkel specifications and industry standards.

However, any personnel lifting device can be potentially dangerous in the hands of untrained or careless operators.

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

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

Before operating the Snorkelift you must be

AUTHORIZED by the person in charge to do so.

■

Operation rules

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

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

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

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

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

5. You must make a pre-start inspection of the

Snorkelift at the beginning of each shift. A malfunctioning machine must not be used.

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

DANGER

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

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Maintenance

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

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

QUALIFIED maintenance personnel if you find problems or malfunctions.

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

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

MHP12/34J – 11447A page - iii

Introduction

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Responsibilities of parties

It is imperative that all owners and users of the

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

DANGER

ANSI Standard A92.2-1992 clearly identifies requirements of all parties who might be involved with Boom-Supported Elevating

Work Platforms.

AUSTRALIAN / NZ STANDARD 2550-10

1994 Also identifies the requirements of all parties who might be involved with

Boom-Supported Elevating Work

Platforms.

A reprint of the “Manual of Responsibilities for

Dealers, Owners, Users, Operators, Lessors and

Lessees of ANSI/SIA A92.5-1992 Boom Supported Elevating Work Platforms” is available from

Snorkel dealers or from the factory upon request.

Copies are also available from the Scaffold Industry

Association, Inc., 14039 Sherman Way, Van Nuys,

CA 91405-2599.

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Options

The use of optional equipment is discussed in the

“Options” chapter 11.

The options you will find discussed there are:

1. Bi-Energy

2. Self Levelling Stabiliser

3. Air line to platform

4. Dual fuel

5. Work lights.

6. Sandblast protection kit.

7. RCD/ELCB AC outlet.

8. Flashing light.

9. Platform rotator.

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Additional information

For additional information, contact your local dealer.

Snorkel

2/26 Redfern Street

Wetherill Park NSW 2164

Australia

Snorkel

PO Box 1041

Levin 5500

New Zealand page - iv MHP12/34J – 11447A

Table of Contents

Electrical Hazard

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

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

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

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

Introduction

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

Qualified operators . . . . . . . . . . . . . . . . . . . . . . . iii

Operation rules. . . . . . . . . . . . . . . . . . . . . . . . . . iii

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

Responsibilities of parties . . . . . . . . . . . . . . . . . iv

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

Additional information. . . . . . . . . . . . . . . . . . . . . iv

1. Safety

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

Pre-start Inspection . . . . . . . . . . . . . . . . . . . . 1-1

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

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

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

Crushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

General Safety Precautions. . . . . . . . . . . . . . . 1-2

Personnel Precautions . . . . . . . . . . . . . . . . . 1-2

Operator General Precautions . . . . . . . . . . . 1-2

Mounting and Dismounting Precautions . . . . 1-2

Starting and Stopping Precautions . . . . . . . . 1-2

Operating Precautions . . . . . . . . . . . . . . . . . 1-2

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

Fuel Handling Precautions . . . . . . . . . . . . . . 1-3

Safety Decals and Placards . . . . . . . . . . . . . . 1-3

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

2. Safety Devices

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

Emergency Stop Switches. . . . . . . . . . . . . . . . 2-1

At ground control box . . . . . . . . . . . . . . . . . . 2-1

At platform control box . . . . . . . . . . . . . . . . . 2-1

Other Safety Devices. . . . . . . . . . . . . . . . . . . . 2-1

Lanyard anchor points. . . . . . . . . . . . . . . . . . 2-1

Gravity gate . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Guardrails . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Foot switch . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Bubble level . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

RCD/ELCB AC outlet . . . . . . . . . . . . . . . . . . 2-3

Flashing light . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

3. Specifications

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

Engine Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Overall Dimensions - MPH12/34J . . . . . . . . . . 3-3

Working Envelope - MHP12/34J . . . . . . . . . . . 3-4

Booms identification . . . . . . . . . . . . . . . . . . . 3-5

Nomenclature And Serial Numbers . . . . . . . . . 3-5

Right side view of machine . . . . . . . . . . . . . . 3-5

Left side view of machine . . . . . . . . . . . . . . . 3-6

Serial number location, chassis . . . . . . . . . . 3-6

4. Gauges

Hourmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Level Bubble . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Hydraulic Oil Level . . . . . . . . . . . . . . . . . . . . . . 4-1

5. Automatic Shut-offs and Circuit Breakers

RCD/ELCB Outlet (option). . . . . . . . . . . . . . . . 5-1

Main Circuit Breaker . . . . . . . . . . . . . . . . . . . . 5-1

Outriggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

6. Controls

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

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

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

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

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

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

7. Daily Inspection and Maintenance

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

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

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

Fuel Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

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

Wiring Harnesses . . . . . . . . . . . . . . . . . . . . . . 7-2

Battery Terminals. . . . . . . . . . . . . . . . . . . . . . . 7-3

Battery Fluid Level . . . . . . . . . . . . . . . . . . . . . . 7-3

Hydraulic Oil Level . . . . . . . . . . . . . . . . . . . . . . 7-3

Hydraulic Oil Leaks . . . . . . . . . . . . . . . . . . . . . 7-3

Bolts and Fasteners. . . . . . . . . . . . . . . . . . . . . 7-4

Wheels and Tyres . . . . . . . . . . . . . . . . . . . . . . 7-4

Structural Damage and Welds. . . . . . . . . . . . . 7-4

Lanyard Anchor Points . . . . . . . . . . . . . . . . . . 7-5

Platform Gravity Gate . . . . . . . . . . . . . . . . . . . 7-5

Platform Guardrails . . . . . . . . . . . . . . . . . . . . . 7-5

Flashing Light (option) . . . . . . . . . . . . . . . . . . . 7-5

Ground Control Switches. . . . . . . . . . . . . . . . . 7-6

Emergency Lower . . . . . . . . . . . . . . . . . . . . . . 7-6

Lower control box . . . . . . . . . . . . . . . . . . . . . 7-6

Upper control box . . . . . . . . . . . . . . . . . . . . . 7-6

Platform Control Switches . . . . . . . . . . . . . . . 7-6

AC Outlet RCD/ELCB (option). . . . . . . . . . . . . 7-7

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

Standard placards and decals. . . . . . . . . . . . 7-7

Inspection drawing . . . . . . . . . . . . . . . . . . . . 7-8

8. Operation

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

MHP12/34J – 11447A page - v

Table of Contents

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

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

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

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

Stabilizer Operation . . . . . . . . . . . . . . . . . . . . . 8-2

Starting From Platform Control Box. . . . . . . . . 8-3

Moving The Platform . . . . . . . . . . . . . . . . . . . . 8-4

From Ground Control Box . . . . . . . . . . . . . . . 8-4

From Platform Control Box . . . . . . . . . . . . . . 8-5

Securing for Day . . . . . . . . . . . . . . . . . . . . . . . 8-5

9. Emergency Operation

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

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

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

10. Stowing and Transporting

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

The correct stowed position is shown here. 10-1

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

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

Upper boom lock pin . . . . . . . . . . . . . . . . . . 10-1

Lower boom lock pin . . . . . . . . . . . . . . . . . . 10-1

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

Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Forklift points . . . . . . . . . . . . . . . . . . . . . . . . 10-2

11. Options

Bi-Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

DC motor operation . . . . . . . . . . . . . . . . . . . 11-1

Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Battery charger . . . . . . . . . . . . . . . . . . . . . . 11-1

Self Levelling Stabiliser . . . . . . . . . . . . . . . . . 11-2

Self levelling stabiliser operation . . . . . . . . . 11-2

Air Line To Platform . . . . . . . . . . . . . . . . . . . . 11-2

Dual Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

Work Lights . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

Flashing Light . . . . . . . . . . . . . . . . . . . . . . . . 11-2

RCD/ELCB AC Outlet . . . . . . . . . . . . . . . . . . 11-2

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

Platform Rotator . . . . . . . . . . . . . . . . . . . . . . 11-3

12. Fire Fighting and Chemical Containment

Hazardous Components . . . . . . . . . . . . . . . . 12-1

Battery, Lead/Acid (UN 2794) . . . . . . . . . . . 12-1

Gasoline (UN 1203) . . . . . . . . . . . . . . . . . . 12-2

Hydraulic Oil (UN 1270) . . . . . . . . . . . . . . . 12-3

Motor Oil (UN 1270) . . . . . . . . . . . . . . . . . . 12-4

13. Operator's Troubleshooting

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 13-1

Operator Troubleshooting Chart . . . . . . . . . 13-1

page - vi MHP12/34J – 11447A

1. Safety

■

Safe Operation

The following safety information is vitally important for safe operation of the MHP12/34J. Failure to follow these instructions can result in personal injury or DEATH.

❑

Pre-start Inspection

At the start of each work shift, the MHP12/34J shall be given a visual inspection and function test. See

the “Daily Inspection and Maintenance” chapter 7,

in this manual for a list of items to inspect and test.

CAUTION

DO NOT operate the MHP12/34J unless you are trained and authorized, understand the operation characteristics of the MHP12/34J, and have inspected and tested all functions to be sure they are in proper working order.

❑

Work Place Inspection and Practices

Do not use the MHP12/34J as a ground for welding.

Ground to the work piece.

Before the MHP12/34J is used, and during use, check the area in which the MHP12/34J is to be used for possible hazards such as, but not limited to:

1. Drop-offs or holes.

2. Side slopes.

3. Bumps and floor obstructions.

4. Debris.

5. Overhead obstructions and electrical conductors.

6. Hazardous locations.

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

8. Wind and weather conditions.

9. Presence of unauthorized persons.

10. Other possible unsafe conditions.

Before the MHP12/34J is used, determine the hazard classification of any particular atmosphere or location according to ANSI/NFPA 505-1987.

Any MHP12/34J operated in a hazardous location must be approved and of the type required by

ANSI/NFPA 505-1987.

A recommended safety practice is to have personnel that are trained in the operation of the emergency controls working in the immediate area of the MHP12/34J to assist the platform operator in the event of an emergency.

When moving the platform, check the clearance around the MHP12/34J to avoid contact with structures or other hazards. Always look in the direction of motion.

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

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

DO NOT engage in any form of “horseplay” or “stunt driving” while operating the MHP12/34J.

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

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

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

Never steady the platform by positioning it against another platform.

DO NOT operate an MHP12/34J that is not functioning properly, or has been damaged, until the machine has been repaired by a qualified maintenance person.

DO NOT operate a MHP12/34J that does not have all its decals and placards attached and legible.

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

Use the recommended transport device when loading the machine.

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Electrocution

T h e M H P 1 2 / 3 4 J i s a n a l l m e t a l b o o m ,

NON-INSULATED, aerial work platform.

DO NOT operate it near ELECTRICAL conductors.

Regard all conductors as being energized.

DO NOT operate outside during a thunderstorm.

❑

Tipover and Falling Hazards

DO NOT operate the MHP12/34J from a position on trucks, trailers, railway cars, floating vessels, scaffolds, or similar equipment unless the application is approved in writing by Snorkel.

If the platform or elevating assembly becomes caught, snagged, or otherwise prevented from normal motion by an adjacent structure or other obstacles such that control reversal does not free the platform, remove all personnel from the

MHP12/34J – 11447A page 1 - 1

1. Safety

platform before attempts are made to free the platform using ground controls.

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

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

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

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

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

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

DO NOT exceed the unrestricted platform capacity as indicated on the capacity placard at the entrance to the platform.

ENSURE all four stabilizer foot plates are in firm contact with the ground as laid out on page 1-1

“Work Place Inspection and Practices”. DO NOT raise the boom if the MHP12/34J is on soft ground.

Operate the boom only on a firm surface capable of withstanding all load forces imposed by the aerial work platform in all operating conditions.

Do Not carry loads from any point outside of the platform.

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

Raise the platform only when the MHP12/34J is on level ground.

Maintain a firm footing on the platform floor.

Climbing on the guardrails is prohibited.

DO NOT use ladders, planks, or other devices to extend or increase your work position from the platform.

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

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

DO NOT use the MHP12/34J as a crane, hoist, or jack.

DO NOT operate the MHP12/34J in winds, or wind gusts, of 28 mph 12.5 m/s) or more.

DO NOT add anything to the MHP12/34J that will increase the wind loading (banners, flags, etc.).

❑

Crushing

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

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

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

■

General Safety Precautions

❑

Personnel Precautions

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

❑

Operator General Precautions

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

Be sure the guardrail system, including the gate, is in place and secure.

❑

Mounting and Dismounting Precautions

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

DO NOT jump off the machine.

DO NOT dismount while the boom is in motion.

❑

Starting and Stopping Precautions

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

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

When leaving the machine parked or unattended, remove the starter key from the Master Key

Switch.

❑

Operating Precautions

DO NOT modify the MHP12/34J in any way.

When parts or components are replaced, they shall be identical or equivalent to original Snorkel parts or components.

page 1 - 2 MHP12/34J – 11447A

1. Safety

DO NOT override any of the safety features of the

MHP12/34J.

❑

Operator Maintenance Precautions

CAUTION

DO NOT use your hand to search for hydraulic oil leaks. High pressure hydraulic oil can easily cut and penetrate your skin — a very serious injury that requires immediate attention by a medical specialist trained in that type of injury. Use a piece of cardboard or wood to search for hydraulic oil leaks.

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

❑

Fuel Handling Precautions

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

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

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

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

Clean up spilled fuel immediately.

Tighten the fuel tank cap securely. If the fuel cap is lost, replace it with an approved cap from Snorkel.

Use of a non-approved cap without proper venting may result in pressurization of the tank.

Never use fuel for cleaning purposes.

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

■

Safety Decals and Placards

There are several safety decals and placards on the MHP12/34J. Their locations and descriptions are shown in this section. Take time to study them.

CAUTION

Be sure that all the safety decals and placards on the MHP12/34J are legible.

Clean or replace them if you cannot read the words or see the pictures. Clean with soap & water and a soft cloth. Do not use solvents.

You MUST replace a decal or placard if it is damaged, missing, or cannot be read. If it is on a part that is replaced, make sure a new decal or placard is installed on the replaced

MHP12/34J – 11447A

part. See your Snorkel dealer for new decals and placards.

NOTE

Refer to Placards and Decals Inspection Chart and Drawing in the “Daily Inspection and

Maintenance” chapter 7, for part numbers,

location, and required quantities of all placards and decals.

page 1 - 3

1. Safety

■

Safety Placards and Decals Location

1

2 34J

11227-34

10817-4

EMERGENCY BLEED

DOWN VALVE

0070420

302559

DANGER

PINCH POINT

Keep hands clear.

560239

HYDRAULIC OIL

9207

TOWING SPEED

80 kmh

MAXIMUM

7855

HYDRAULIC FLUID LEVEL

CHECK FLUID LEVEL WITH PLATFORM LOWERED

USE PREMIUM HYDRAULIC OIL

GRADE 10W40

O O VISCOSITY AT 100 F (38 C)

320 SUS (SAYBOLT)

DO NOT OVERFILL

45177-6

FULL

ADD

302950

10812-2

TYRE PRESSURE

45 p.s.i.

310 kPa

COLD

7856-45

THIS TRAILOR WAS MANUFACTURED TO COMPLY WITH THE INDICATED DESIGN CODES

MODEL MHP S.W.L.

SERIAL NUMBER

DATE OF MANUFACTURE

VIN NUMBER

GROSS TRAILER MASS

TYRE SIZE 165 SR 13

AXLE LOAD CAPACITY

RIM SIZE

1250 KG

5 X 13

RECOMMENDED COLD INFLATION PRESSURE

THE TYRES FITTED TO THIS VEHICLE SHALL HAVE A SPEED CATEGORY NOT LESS THAN “L” (120 KWH)

THE SUM OF THE LOAD CARRYING CAPACITIES OF THE TYRES FITTED TO ANY AXLE OR AXLE GROUP OF THIS

VEHICLE SHALL NOT BE LESS THAN THE RELEVANT LOAD SHOWN ABOVE

36 BRUCE RD LEVIN NEW ZEALAND

310 KPA

DESIGN CODES EN 280

AS 141B.10

page 1 - 4 MHP12/34J – 11447A

1. Safety

560239

1

2 34J

11227-34

GASOLINE

0071925

OPERATORS CHECKLIST

INSPECT AND/OR TEST THE FOLLOWING DAILY

OR AT THE BEGINNING OF EACH SHIFT

1. OPERATING AND EMERGENCY CONTROLS.

2. SAFETY DEVICES.

3. PERSONAL PROTECTIVE DEVICES.

4. HOSES, FITTINGS AND VALVES FOR LEAKS.

5. CABLES AND WIRING HARNESS.

6. LOOSE OR MISSING PARTS.

7. TYRES AND WHEELS.

8. PLACARDS, WARNINGS, CONTROL MARKINGS

AND OPERATING MANUAL(S).

9. GUARDRAIL SYSTEM.

10.OIL LEVELS.

11.BATTERY FLUID LEVEL.

300699

WARNING

Death or serious injury could occur from tipover.

All outriggers must be extended onto firm level surface before elevating or before entering platform.

Do not exceed platform capacity.

0130025

DANGER

YOU MUST NOT OPERATE THIS DEVICE UNLESS:

1.

YOU HAVE BEEN TRAINED IN THE SAFE OPERATION OF THIS

DEVICE AND HHHH

2.

YOU KNOW AND FOLLOW THE SAFETY AND OPERATING

RECOMMENDATIONS CONTAINED IN THE MANUFACTURER'S

MANUALS, YOUR EMPLOYER'S WORK RULES, AND APPLI-

CABLE GOVERNMENTAL REGULATIONS.

HHHHHHHH

AN UNTRAINED OPERATOR SUBJECTS HIMSELF AND OTHERS TO

DEATH OR SERIOUS INJURY.

0323897

FIT BOOM CRADLE LOCK PIN

FOR TRAVELLING.

1772-002K

TYRE PRESSURE

45 p.s.i.

310 kPa

COLD

7856-45

302559

DANGER

PINCH POINT

Keep hands clear.

MHP12/34J – 11447A

DANGER

EXPLOSIVE FUMES

Death or serious injury might result from fire or explosion.

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

Clean up spilled fuel immediately.

476706

DANGER

PINCH POINT

Keep hands clear.

302559 page 1 - 5

1. Safety

DANGER

ELECTROCUTION

HAZARD

THIS MACHINE IS NOT

ELECTRICALLY INSULATED.

Death or serious injury can result from contact or inadequate clearance to electrical power lines and apparatus.

Maintain 10 feet minimum clearance from electrical power lines and apparatus.

Allow for sway, rock, and sag.

0323899

LOWER

BOOM

UPPER

BOOM

JIB

BOOM

FIT BOOM CRADLE LOCK PIN

FOR TRAVELLING.

1772-002K

KEEP CLEAR OF DESCENDING BOOM

DEATH OR SERIOUS INJURY CAN

OCCUR FROM DESCENDING BOOM

0150602

DANGER

DO NOT ALTER OR DISABLE

LIMIT SWITCHES, SAFETY

SWITCHES, OR INTERLOCKS.

451986

10817-2

2 4

1

1 3

2 3

4

10968-1

V.I.N.

8945 page 1 - 6

SLEW

LIFT

ENABLE

11420

SPEED CONTROL

BOOMS

STABILISER

PLATFORM

BASE

CHOKE

ALL FOUR

STABLIZERS

KEEP CLEAR OF DESCENDING BOOM

DEATH OR SERIOUS INJURY CAN

OCCUR FROM DESCENDING BOOM

0150602

ALL FOUR

STABLIZERS

DANGER

DO NOT ALTER OR DISABLE

LIMIT SWITCHES, SAFETY

SWITCHES, OR INTERLOCKS.

451986

ALL FOUR

STABLIZERS

MHP12/34J – 11447A

UPPER

BOOM

SWL 200 KG

2025-200

JIB

BOOM

LOWER

BOOM

1. Safety

EMERGENCY LOWER

1.

TO LOWER PLATFORM, OPERATE EMERGENCY

LOWER SWITCH.

2.

TO SLEW BOOM, OPERATE ‘EMERGENCY

LOWER’ & ‘SLEW’ SWITCHES TOGETHER.

EMERGENCY

LOWER

ROTATE

PLATFORM

SLEW

CHOKE

11420 - 1

SPEED CONTROL

CAUTION

SAFETY BELTS WITH

SHOULDER STRAPS OR

SAFETY HARNESS ARE

TO BE USED

9928

MHP12/34J – 11447A

DANGER

BEWARE OF ELECTRICAL HAZARDS

REGULATION 133A OF THE

CONSTRUCTION SAFETY ACT 1912 REQUIRES

(a) Minimum approach of an appliance to live electrical apparatus.

(b) Inspection of the work site for electrical hazards before commencing to use the appliance.

(c) Constant vigilance and an observer required whilst working or travelling the appliance in the vicinity of live electrical apparatus.

3m. for voltages up to 132,000

6m. for voltages above 132,000 and up to 330,000

8m. for voltages above 330,000

(Australia Only)

WARNING

KEEP CLEAR OF POWER LINES

Unless the Electrical Supply Authority has advised in writing otherwise; the clearance between any live overhead power line and any part of this machine or load carried is required

by law

to be

AT LEAST 4 METRES

This is a requirement of regulation 93 of the in the interests of safe working.

(New Zealand Only) page 1 - 7

1. Safety

page 1 - 8 MHP12/34J – 11447A

2. Safety Devices

■

Safety Device Information

For emergency operation controls and procedures,

see the “Emergency Operation” chapter 9, in this

manual.

The devices listed in this chapter are safety devices.

They are on the MHP12/34J to increase safety in the work place for both the operator and other people near the MHP12/34J.

CAUTION

DO NOT by pass, disable, modify, or ignore any of these devices. Check them carefully at the start of each work shift to see that they are in working order (see “Daily Inspection

and Maintenance” chapter 7). If any is found

to be defective, remove the MHP12/34J from service immediately until a qualified service technician can make repairs.

■

Emergency Stop Switches

❑

At ground control box

❑

At platform control box

Figure 2.2 - Emergency Stop Switch at

Platform Control Box

Press the EMERGENCY STOP switch cover down, at any time, under any conditions and the entire machine stops, and nothing moves. This emergency stop switch cover must be up and the switch turned on for anything on the MHP12/34J to work.

NOTE:

The ground control box is designed to override the platform control box. If the platform control box EMERGENCY STOP switch is down (off) the ground control box can still be used to start and operate the MHP12/34J.

■

Other Safety Devices

❑

Lanyard anchor points

Figure 2.1 - Emergency Stop Switch at

Ground Control Box

Press the EMERGENCY STOP switch cover down, at any time, under any conditions and the entire machine stops, and nothing moves. This emergency stop switch cover must be up and the switch turned on for anything on the MHP12/34J to work.

MHP12/34J – 11447A

Figure 2.3 - Lanyard Anchor Points

page 2 - 1

2. Safety Devices

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

❑

Gravity gate

❑

Foot switch

Figure 2.4 - Gravity Gate

The gravity gate is the place in the platform guardrail system where you should enter and leave the platform. Raise the gate and step under it onto the platform. Once you have entered the platform and attached your fall restraint lanyard to an anchor point, check to see that the gravity gate has fallen back into place.

❑

Guardrails

Figure 2.6 - Foot Switch

The foot switch prevents the platform from moving if something accidentally pushes one of the platform-moving controls on the platform control box.

Stepping on the foot switch is an action that must be performed, at the same time as another action, to make the platform move.

❑

Bubble level

Figure 2.5 - Guardrails

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

page 2 - 2

Figure 2.7 - Bubble Level

A bubble level is located on the trailer side rail, beside the outrigger controls. Watch the bubble level while you set the outriggers. Lower the outriggers, one at a time, just enough to center the bubble in the circle on top of the guage. When the bubble is centered the platform is level and can be safely raised.

MHP12/34J – 11447A

❑

RCD/ELCB AC outlet

RCD

Power Outlet

At Platform

Power Input

Connector

Figure 2.8 - RCD/ELCB AC Outlet

The RCD (Residual Current Device) is located at the base and will protect against short circuits to earth. When there is a short circuit the RCD will shut down the 230v AC power to the platform outlet.

To reset the outlet disconnect the power tool lead from the platform box and reset the RCD at the base.

If the problem persists call a trained service technician.

❑

Flashing light

2. Safety Devices

Figure 2.9 - Flashing Light

The flashing light aler ts people that the

MHP12/34J is moving. The light flashes at about one flash per second any time the MASTER KEY switch is on. There is no ON/OFF switch for the flashing light, it cannot be turned off while the

MHP12/34J is running.

MHP12/34J – 11447A page 2 - 3

2. Safety Devices

page 2 - 4 MHP12/34J – 11447A

3. Specifications

The Snorkelift MHP12/34J is a boom supported elevating work platform built to conform to all applicable

OSHA, ANSI or CSA standards as previously outlined.

OSHA Paragraph 1910.67 Title 29, C.F.R., Vehicle-Mounted Elevating and Rotating Work Platforms - Labour.

OSHA Paragraph 1926.556 Title 29, C.F.R., Aerial Lifts - Construction.

Australian Standard AS1418-10 1996 Elevating Work Platforms.

■

General Specifications

SPECIFICATIONS

Nominal working height

Maximum height to basket floor

Maximum outreach

Maximum outreach height

Maximum width of base

Outriggers retracted

Outriggers extended

Safe working load (unrestricted)

Standard colour

Platform size

Travelling height

Overall length

Maximum towing speed

Turntable rotation

Trailer tongue weight

Maximum rated axle capacity

Insulation rating

Weight

12.4m

10.4m

5.4m

5.65m

MHP12/34J

40’ 8”

34’ 1”

17’ 9”

18’ 6”

1.55m

3.50m

200kg

Orange base/boom grey platform

1200 x 760 x 1100mm

5’ 1”

11’ 5”

440lbs

4’ x 2’ 6” x 3’ 7”

Aluminum

2.04m

5.71m

80km/h

Aluminum

6’ 8”

18’ 8”

50m/h

550 degrees non-continuous

75kg 165lbs

1200kg 2645lbs

Nil

1160kg 2609lbs

MHP12/34J – 11447A page 3 - 1

3. Specifications

■

Engine Data

Engine Make

Model

Honda (gasoline)

GX 160

Engine type

Displacement

Bore x Stroke

Max. output

4-stroke, over head valve, 1 cylinder

163 cm

3

(9.9 cu-in)

68 x 45 mm (2.7 x 1.8 in)

4 kW/4,000 rpm

Max. torque

Fuel

1.1 kg-m (8.0 ft-lb)/ 2500 rpm gasoline

Fuel Grade automotive gasoline (unleaded or lowleaded preferred)

Fuel consumption 230 g/PSh

Cooling system Forced air

Ignition system Transistor magneto

PTO shaft rotation

Counterclockwise

Oil Capacity

Oil Grade

0.60 litres (0.60 US qt, 0.53 Imp qt)

SAE 10W-30 page 3 - 2 MHP12/34J – 11447A

■

Overall Dimensions - MPH12/34J

3. Specifications

35mm

(1.3”)

3370mm

5710mm

(18’ 8”)

MHP12/34J – 11447A

1550mm

(5’ 1”)

page 3 - 3

3. Specifications

■

Working Envelope - MHP12/34J

13

12

15

14

11

10

9

8

7

6

5

4

3

2

1

0

6

METERS

5

20

FEET

15

4

3

10

2 1

5

0

0

1

5

2

50

45

40

35

30

25

20

15

10

5

3

10

4

15

5 6

20

0 page 3 - 4 MHP12/34J – 11447A

3. Specifications

■

Nomenclature And Serial Numbers

❑

Right side view of machine

Engine cover

Column

Jockey wheel

Ground controls

Platform controls

Tow coupling

Draw bar

Outriggers (4)

Trailer

Outrigger controls

Platform

❑

Booms identification

Upper boom

Jib boom

Levelling turret

Lower boom

VIN Number

MHP12/34J – 11447A page 3 - 5

3. Specifications

❑

Left side view of machine

Jib Cylinder

Lower cylinder

Upper cylinder

Hand brake

Oil tank cover

Outrigger cylinder

❑

Serial number location, chassis

page 3 - 6

Serial number plate

MHP12/34J – 11447A

■

Hydraulic Oil Level

4. Gauges

■

Hourmeter

Figure 4.1 - Hourmeter

The hour meter is basically an electric clock. It accumulates time when the master key switch is turned on. The hour meter cannot be reset. An MHP qualified service technician can use it to tell when it is time for the periodic maintenance listed in the maintenance manual.

■

Level Bubble

Figure 4.3 - Hydraulic Oil Level

The hydraulic oil level guage is on the side of the hydraulic oil tank. It shows the actual level of oil inside the tank. Read it only when the booms are fully lowered and outriggers are raised in the travel position.

The oil level should be within + or - 6mm (1/4”) of the line.

Figure 4.2 - Level Bubble

A level bubble is located beside the outrigger control valve, mounted on the trailer base. Watch the bubble while you set the outriggers. Lower the outriggers, front ones first, one at a time just enough to center the bubble in the circle on top of the guage.

When the bubble is central the platform is level and the platform can be safely raised.

MHP12/34J – 11447A page 4 - 1

4. Gauges

page 4 - 2 MHP12/34J – 11447A

■

RCD/ELCB Outlet (option)

5. Automatic Shut-offs and Circuit Breakers

■

Outriggers

Figure 5.1 - RED/ELCB Outlet

The RCD (Residual Current Device) is located at the base and will protect against short circuits to earth. When there is a short circuit the RCD will shut down the 230v AC power to the platform outlet.

To reset the outlet disconnect the power tool lead from the platform box and reset the RCD at the base.

If the problem persists call a trained service technician.

■

Main Circuit Breaker

Figure 5.3 - Outriggers

The MHP12/34J cannot be raised unless the outriggers are lowered and the lift enable light on the lower control box is lit. Once the booms are raised from the stowed position the outriggers become disabled until the booms are stowed in the travel position.

Figure 5.2 - Main Circuit Breaker

There is only one circuit breaker, on a standard

MHP12/34J, that is accessible to the operator. Its purpose is to protect the electrical circuits from electrical overloads. When the circuit breaker trips

(pops out) push it back in then attempt to use the

MHP12/34J. If the circuit breaker trips a second time, take the MHP12/34J out of service and refer the problem to a qualified trained service technician for repair.

MHP12/34J – 11447A page 5 - 1

5. Automatic Shut-offs and Circuit Breakers

page 5 - 2 MHP12/34J – 11447A

6. Controls

■

Controls Description

This chapter explains what each control does.

This chapter DOES NOT explain how to use the controls to produce useful work, refer to the “Oper-

ation” chapter 8-1 for that after you have read this

chapter.

For optional equipment controls, see the “Options”

chapter.11-1

See the “Emergency Operation” chapter 9-1 for the

location of the emergency bleed down control and for correct emergency bleed down procedures.

The main operating functions of an MHP12/34J can be controlled from the ground control box or from the platform control box.

❑

Controls and Control Decals Locations

BOOMS

LOWER

BOOM

UPPER

BOOM

STABILISER

PLATFORM

BASE

Ground Controls

JIB

BOOM

SLEW

CHOKE

11420

SPEED CONTROL

MHP12/34J – 11447A

LOWER

BOOM

Platform Controls

UPPER

BOOM

EMERGENCY LOWER

1.

TO LOWER PLATFORM, OPERATE EMERGENCY

LOWER SWITCH.

2. TO SLEW BOOM, OPERATE ‘EMERGENCY

LOWER’ & ‘SLEW’ SWITCHES TOGETHER.

ROTATE

PLATFORM

CHOKE

SLEW

11420 - 1

SPEED CONTROL

page 6 - 1

6. Controls

■

Ground Control Box

Controls for operating the MHP12/34J from the ground, are located on the right side of the turntable.

NOTE

The number of each control below corresponds to the control’s call out on the control box illustration.

1. Emergency Stop: Press the EMERGENCY

STOP switch cover down, at any time, under any conditions, and the entire machine stops, and nothing moves. This emergency stop switch cover must be up and the switch turned on for anything on the MHP12/34J to work.

2. Platform/Ground Selector : Must be in the

GROUND position (down) for the ground control box to work. The switch MUST be in the PLATFORM position (up) for the platform control box to work.

3. Choke/Cold Start: Hold the switch UP while you start an engine that is at ambient air temperature (a "cold" engine). This will choke the engine.

4. Master Key Switch: This switch works like an automobile ignition switch. Hold it at

START until the engine starts, then release it to ON. (-) Turn the Master Key Switch to

OFF (O) if the platform is to stay in one position for a long time, that will turn the engine off and save fuel.

5. Boom Speed: This control determines how fast the booms move. Set it to SLOW (turtle) until you are very familiar with the way the machine works or if the platform is working in dangerous or cramped surroundings.

6. Stablizer / Boom Selector Switch:

Must be in Stablizer (outrigger) position

(down) for the outriggers to work. Once outriggers are down and set the switch must be placed in the boom (up) position for the booms to work.

Control switches 7 through 10 are the platform moving switches. Each is a three position, momentary contact, normally OFF switch.

NOTE

(See “Nomenclature and Serial Numbers” in the

“Specifications” chapter 3, for boom

identification.)

7. Lower Boom : UP raises the lower boom.

DOWN lowers the lower boom.

8. Upper Boom: UP raises the upper boom.

DOWN lowers the upper boom.

page 6 - 2

9. Jib Boom: UP raises the jib boom. DOWN lowers the jib boom.

10. Slew: LEFT rotates the entire turntable and boom to the left. RIGHT rotates the entire turntable and boom to the right.

11. Lift Enable: The platform can only be raised when this light is lit. When this light is not lit the platform will not raise because the outriggers are not properly set.

MHP12/34J – 11447A

6. Controls

❑

Ground Control Box Controls

7

LOWER

BOOM

8

UPPER

BOOM

9

JIB

BOOM

4

1

SLEW

LIFT

ENABLE

11420

10 11

SPEED CONTROL

BOOMS

6

STABILISER

PLATFORM

2

BASE

CHOKE

3

5

MHP12/34J – 11447A page 6 - 3

6. Controls

■

Platform Control Box

Controls for operating the MHP12/34J from the platform are located on the platform control box, with the exception of the foot switch which is on the platform floor.

NOTE

The number of each control below corresponds to the control’s call out on the control box illustration.

1. Emergency Stop: Press the EMERGENCY

STOP switch cover down, at any time, under any conditions, and the entire machine stops, and nothing moves. This emergency stop switch cover must be up and the switch turned on for anything on the MHP12/34J to work.

2. Choke/Cold Start: Hold the switch UP while you start an engine that is at ambient air temperature (a "cold" engine). This will choke the engine.

3. Anti-Restart: This switch works like an automobile ignition switch. Hold it at START until the engine starts, then release it to ON

(-). If the engine dies in ON, the key must be turned to OFF (O) before it will go back to

START. Turn the switch to OFF if the platform is to stay in one position for a long time, that will turn the engine off and save fuel.

4. Boom Speed: This control determines how fast the booms move. Set it to SLOW (turtle) until you are very familiar with the way the machine works or if the platform is working in dangerous or cramped surroundings.

5. Emergency Lower: If the engine stops and cannot be restarted, hold the switch down and this will lower the upper and lower booms (not the jib boom). To slew during emergency lower operate emergency lower and slew switches together.

8. Upper Boom: UP raises the upper boom.

DOWN lowers the upper boom.

9. Jib Boom: UP raises the jib boom. DOWN lowers the jib boom.

10. Slew: LEFT rotates the entire turntable and boom to the left. RIGHT rotates the entire turntable and boom to the right.

11 Lift Enable: The platform can only be raised when this light is lit. When this light is not lit the platform will not raise because the outriggers are not properly set.

12. Foot Switch: You must step down on the foot switch, and hold it down when you use any platform control that causes the platform to move.

Items 6 through 10 are the platform moving switches. Each is a three position, momentary contact, normally OFF switch.

NOTE

(See “Nomenclature and Serial Numbers” in the

“Specifications” chapter 3, for boom

identification.)

6. Platform Rotate: (Option) LEFT rotates the platform left. RIGHT rotates the platform right.

7. Lower Boom: UP raises the lower boom.

DOWN lowers the lower boom.

page 6 - 4 MHP12/34J – 11447A

6. Controls

❑

Platform Control Box Controls

10 1

EMERGENCY LOWER

1.

TO LOWER PLATFORM, OPERATE EMERGENCY

LOWER SWITCH.

2.

TO SLEW BOOM, OPERATE ‘EMERGENCY

LOWER’ & ‘SLEW’ SWITCHES TOGETHER.

EMERGENCY

LOWER

5

7

LOWER

BOOM

8

UPPER

BOOM

9

JIB

BOOM

3

6

LIFT

ENABLE

11420 - 1

SLEW

CHOKE

2

11

4

SPEED CONTROL

12

MHP12/34J – 11447A page 6 - 5

6. Controls

page 6 - 6 MHP12/34J – 11447A

7. Daily Inspection and Maintenance

At the start of each work day (or 8 hour shift), an

MHP12/34J qualified operator must perform the

Daily Inspection and Maintenance as listed in the table below.

The purpose of the Daily Inspection and Maintenance is to keep the MHP12/34J in proper working condition and to detect signs of malfunction at the earliest possible time.

The MHP12/34J should be in the STOWED

POSITION and the Master Key Switch set to OFF before you begin this inspection.

Defective parts and/or equipment malfunctions jeopardize the safety of the operator and other personnel, and can cause damage to the machine.

DANGER

DO NOT operate an MHP12/34J that is known to be damaged or malfunctioning.

R e p a i r a l l e q u i p m e n t d a m ag e o r malfunctions, before placing the MHP12/34J into service.

■

Daily Inspection and Maintenance Table

Item

Engine fuel level

Fuel tank cap

Engine oil level

Fuel leaks

Engine coolant

Wiring harnesses

Battery terminals

Battery fluid level

Hydraulic oil level

Hydraulic oil leaks

Tires and wheels

Bolts and fasteners

Structural damage and welds

Lanyard anchor points

Platform gravity gate

Platform guardrails

Flashing light (option)

Ground control switches

Level sensor (option)

Emergency lower

Platform control box switches

RCD/ELCB AC outlet (option)

Platform work lights (option)

Placards and decals

Service Required

Look to see that the fuel tank is full

Check to see that the cap is tight

Check oil level (between dipstick lines)

Visually inspect (hoses and connections)

Check that grills are not blocked

Visually inspect (installation, condition)

Visually inspect (no corrosion)

Check fluid level (1/4" or 6 mm below filler neck)

Visually inspect level (between lines on gauge)

Visually inspect (hoses, tubes)

Visually inspect (condition)

Visually inspect (condition)

Visually inspect (weld cracks, dents)

Visually inspect (condition)

Check condition and operation

Visually inspect (condition)

Visually inspect (operation)

Actuate and inspect for proper operation

Check operation

Check operation (causes correct motion)

Actuate and inspect for proper operation

Check operation

Check operation

Visually inspect (installation, condition)

MHP12/34J – 11447A page 7 - 1

7. Daily Inspection and Maintenance

The rest of this chapter shows how to perform the inspection and maintenance required for each item in the Daily Inspection and Maintenance Table.

■

Engine Fuel Level

Visually inspect the Honda fuel tank and the entire length of the fuel line, from the engine to the fuel tank, for leaks.

■

Engine Oil Level

COMBINED OIL FILLER

CAP AND DIPSTICK

Figure 7.1 - Engine Fuel Level

Visually check to see that the gasoline tank is full.

See the “Specifications” chapter 3, fuel for octane

and grade.

■

Fuel Tank Cap

OIL LEVEL FILLED TO

TOP OF FILLER NECK

OIL LEVEL

Figure 7.4 - Engine Oil Level

Remove the oil filler cap and wipe the dipstick clean. Insert the dipstick into the oil filler neck, but do not screw it in.

If the level is low, fill to the top of the oil filler neck with the recommended oil.

See the “Specifications” chapter 3, for the correct

engine oil grade and weight.

■

Wiring Harnesses

Figure 7.2 - Fuel Tank Cap

Check to see that the tank cap is in place and is tight.

■

Fuel Leaks

Figure 7.5 - Wiring Harnesses

page 7 - 2

Figure 7.3 - Fuel Leaks

Figure 7.6 - Wiring Harnesses

Inspect all the wiring harnesses, on the machine, for loose connections, broken wires, and frayed insulation.

MHP12/34J – 11447A

7. Daily Inspection and Maintenance

■

Battery Terminals

Figure 7.9 - Hydraulic Oil Level

The hydraulic oil level should be between the two marks on the decal.

Figure 7.7 - Battery Terminals

Battery terminals should be tight, clean and free of dirt and corrosion.

■

Battery Fluid Level

DANGER

Batteries emit hydrogen and oxygen, elements that can combine explosively.

DO NOT smoke or permit open flames or sparks when checking batteries.

Figure 7.8 - Battery Fluid Level

Remove the caps from the battery and visually check to see that the battery fluid is 1/4” (6 mm) below the bottom of the filler neck inside each hole.

■

Hydraulic Oil Level

To check the hydraulic oil level:

Completely lower the booms and ensure the stabilizers are in the stowed position.

Figure 7.10 - Hydraulic Oil Filler Cap

If necessary, add hydraulic oil at the filler cap. See

the “Specifications” chapter 3, for type and grade of

hydraulic oil.

■

Hydraulic Oil Leaks

DANGER

Leaking hydraulic oil can cause burns, fires, falls (slipping), cuts, and puncture wounds

(if under high pressure).Do not search for leaks with your hand. Have a qualified trained maintenance person repair all hydraulic fluid leaks before you operate an

MHP12/34J.

Figure 7.11 - Hydraulic Oil Leaks

MHP12/34J – 11447A page 7 - 3

7. Daily Inspection and Maintenance

Hydraulic oil leaks are easily visible and can show up anyplace.

Visually inspect the entire machine for hydraulic oil.

Check the ground under the machine for leaked oil.

Carefully inspect the ends of the upper and lower booms. Oil can run down inside of the booms and drip out the end.

■

Bolts and Fasteners

Visually inspect all fasteners to see that none is missing or obviously loose.

Figure 7.14 - Tyre Condition

Check each wheel for obvious damage that could cause a blowout.

Figure 7.12 - Critical Pin Retainer Bolts

Critical pin retainer bolts have lock tab washers fitted, they should all be present and not damaged in any way.

Figure 7.13 - Wheel Nuts

Pay particular attention to all of the wheel nuts and bolts.

None should be visibly loose, missing, or deformed.

■

Wheels and Tyres

The MHP12/34J relies on it’s tyres for towing stability.

Figure 7.15 - Location of Tyre Pressure Decal

Ensure tyre pressures are maintained according to the decal attached to the chassis behind the mudguard (fender).

■

Structural Damage and Welds

Visually inspect all welds for cracks, all structural members for deformity.

page 7 - 4

Figure 7.16 - Chassis Welds

MHP12/34J – 11447A

Pay particular attention to the chassis welds

7. Daily Inspection and Maintenance

■

Platform Guardrails

Figures 7.17 - Boom Welds

Closely inspect boom welds all the way around, for cracks.

■

Lanyard Anchor Points

Figure 7.20 - Platform Guardrails

Visually inspect the platform guardrails to see that none of the tubing has been cut out, removed, or deformed in any way.

Visually check the guardrail welds to see that none is cracked nor ground down.

■

Flashing Light (option)

Figure 7.18 - Lanyard Anchor Points

Visually check the lanyard anchor points to see that they are not deformed or cut off.

■

Platform Gravity Gate

Figure 7.21 - Flashing Light

Visually check the optional flashing light, to see that the light flashes at approximately one flash per second when the motor key switch is turned on.

Figure 7.19 - Platform Gravity Gate

MHP12/34J – 11447A page 7 - 5

7. Daily Inspection and Maintenance

■

Ground Control Switches

Figure 7.22 - Ground Control Switches

With the Ground/Platform Selector

 set to ground:

Check that each of the platform moving switches

(

€ through to

ƒ

) cause the MHP12/34J to move the way it should.

Check both positions of each switch.

For correct operating procedures see the “Opera-

tion” chapter 8.

NOTE

Pay particular attention to the Emergency Stop switch

„ to see that it turns the MHP12/34J engine off when the red cover is struck.

■

Emergency Lower

❑

Lower control box

With the booms raised open the Emergency

Lower Valve on the top of the manifold valve.

The booms should begin to lower. The rate of lowering can be regulated by the amount the valve is opened.

To check the slew function when using the manual emergency lower valve the Master Key Switch and Emergency Stop switch must be on and the

Platform/ground Selector must be set to ground.

To slew (with the manual emergency lower valve already open) select the required direction on the slew toggle switch .

NOTE

The manual emergency lower valve must be closed after the test to ensure proper boom operation.

For correct emergency lowering operating proce-

dures see “Emergency Operation” chapter 9.

❑

Upper control box

Emergency lower from the upper control box is achieved by turning the upper control to on and depressing the foot switch whilst operating the Emer-

gency Lower switch

To slew the unit select the direction required on the slew toggle switch at the same time. For correct emergency lowering operating procedures see

“Emergency Operation” chapter 9.

■

Platform Control Switches

Figure 7.23 - Emergency Lower Valve

page 7 - 6

Figure 7.24 - Platform Control Switches

MHP12/34J – 11447A

7. Daily Inspection and Maintenance

On the ground control box set the Ground/Plat-

form Selector to platform.

Check that each of the platform moving switches

(

 through to

ƒ

) cause the platform to move the way it should.

Check both positions of each switch.

For correct operating procedures see the ”Opera-

tion” chapter 8.

NOTE

Pay particular attention to the Emergency Stop switch

„ to see that it turns the MHP12/34J engine off when struck.

Pay particular attention to the platform foot switch to see that it deactivates the platform moving switches when the foot switch is not stepped on.

■

AC Outlet RCD/ELCB (option)

Figure 7.25 - AC Outlet RCD/ELCB

If the MHP12/34J has this option fitted check the

RCD works by connecting a power source to the base inlet and an appliance to the platform outlet.

Push the test button on the RCD/ELCB device and the power outlet at the platform should not work.

CAUTION

RCD/ELCB devices should only be replaced by a qualified electrician.

■

Placards and Decals

Look to see that all placards and decals are in place and legible. Replace any missing or illegible placards or decals before placing the Snorkelift into service for the daily work shift.

Decal and placard kits for the MHP12/34J are available from Snorkel dealers.

❑

Standard placards and decals

See page 7 - 8 for the following items.

No Part No

1

9999

2

451776

3

108172

4

302950

5

7856-45

6

7855

7

9207

8

0070420

9

560239

10

302559

11

10817-4

Description

Serial number plate

Decal - Hydraulic fluid level

Decal - Snorkel

Decal - Hydraulic oil level

Decal - Tyre pressure

Decal - Towing speed

Decal - Hydraulic oil

Decal - Emergency lower

Decal - Snorkel

Decal - Pinch point

Decal - Snorkel

12

11227-34

13

007-1925

14

300699

15

0130025

16

0323897

17

476706

18

11420

Decal - MHP12/34J

Decal - Gasoline

Decal - Operator checklist

Decal - Warning

Decal - Danger

Decal - Danger explosive gas

Decal - Lower control box

19

0323899

20

0150602

21

451986

22

9223-3

23

10968-1

24

8945

25

11420-1

26

2025-200

Decal - Electrocution hazard

Decal - Descending boom

Decal - Limit switches

Decal - Chevron

Decal - Outrigger control

Decal - Vin plate

Decal - Upper controls

Decal - Safe working load

27

99228 Decal - Caution

28

1772-002K Decal - Boom lock pin

29

30

11287-3

31

9428

1843

Decal - Chevron

Decal - Danger (Australia Only)

Decal - Warning (NZ Only)

1

1

1

2

Req

1

1

2

4

1

1

1

1

1

1

2

2

1

2

2

4

1

4

5

1

1

1

1

1

1

1

2

MHP12/34J – 11447A page 7 - 7

7. Daily Inspection and Maintenance

❑

Inspection drawing

1

20

11

12

9

20

3

7,4,2

5

22 (X4), 30 (X4)

9

28

10

12

21,20 28

18

19

8 14,15,16,17

10

28

6

11

21(x4) 5

13

23

3

24

25 page 7 - 8

27

26

31

MHP12/34J – 11447A

8. Operation

■

Operating Procedures

This chapter explains how to properly start and operate an MHP12/34J. Read and understand all the previous chapters in this manual before you begin to operate an MHP12/34J.

CAUTION

If you use the MHP12/34J for painting be sure the optional sandblast protection kit is installed to protect the hydraulic cylinder rods from paint. Do not leave the MHP12/34J engine running if you are sandblasting. Sand drawn into the air intake can erode engine parts.

■

Control Stations

An MHP12/34J can be operated from the ground control box or from the platform control box. There are basically two differences between ground control and platform control operations, both are safety related:

1. The ground control box can override the platform control box at any time. If a person operating the machine from the platform becomes incapacitated, a person on the ground can always take over machine control.

2. The outriggers can only be selected from the ground control box and only when the booms are in the stowed position.

DANGER

The MHP12/34J is not Electrically Insulated.

Death or Serious Injury to operating personnel, can occur if the machine should come into contact with energized electrical wires during operation.

DO NOT attempt to operate the MHP12/34J ground controls if the platform, booms, or any other conducting part of an MHP12/34J is in contact with energized electrical wires or if there is an immediate danger of such contact.

NOTE

See the "Electrical Hazard" section, in this manual for a complete explanation of the hazards concerning electricity.

■

Emergency Stopping

To stop an MHP12/34J, press the Emergency

Stop switch cover down on either of the two

EMERGENCY STOP switches at the ground control box or at the platform control box.

Figure 8.1 - Ground Control Box Emergency

Stop Switch Location.

Figure 8.2 - Platform Control Box Emergency

Stop Switch Location.

NOTE

For a complete discussion of the Emergency

Stop switches, see “Controls” chapter 6, in this

manual.

MHP12/34J – 11447A page 8 - 1

8. Operation

■

Operation Considerations

To use this chapter, first decide whether you will be starting and operating the MHP12/34J from the ground control box or the platform control box.

Begin at the section entitled "Starting From Ground

Control Box", if you intend to start and run the

MHP12/34J from the ground station.

Begin at the section entitled "Starting From Platform Control Box", if you intend to start and run the

MHP12/34J from the platform.

■

Starting From Ground Control Box

Before you begin to operate the MHP12/34J from the ground control box, a qualified operator must perform the "Daily Inspection and Maintenance" as

described in chapter 7, of this manual.

To start the engine from the ground control box do the following:

1. Set the Emergency Stop switch

 to ON

(see Figure 8.3).

5. Turn the key to Start and hold it there until the engine starts or for a maximum time of 6 seconds. When the engine starts release the key

 and the choke switch

‚

, if you used it

(see Figure 8.3).

CAUTION

If the engine does not start in 6 seconds turn the key off and release the choke. Wait 60 seconds before trying to restart the engine again. Continual cranking of the starter motor will only result in its damage.

The engine should now be running, and the

MHP12/34J is ready to begin work.

■

Stabilizer Operation

Ensure the boom/stabilizer switch (item

ƒ on the ground control box) (see Figure 8.3) is set to stabilizer.

Activate the stabilizers with the valve levers ensuring that the front stabilizers are lowered first to prevent damage to the jockey wheel.

Activate the rear stabilizers and level the machine using the level bubble adjacent to the control levers.

CAUTION

Ensure all four foot plates are in full contact with the ground and that they are clear of manhole covers, drains and unstable ground etc.

Figure 8.3

Figure 8.3 - Ground Control Box Starting

2. Set the Platform/Ground Selector switch

€ to GROUND (see Figure 8.3).

3. Insert the key



(see Figure 8.3) into the

Master Key Switch and turn the key on.

4. If the engine is at ambient temperature

(cold), hold the Choke / Cold Start Switch

‚

(see Figure 8.3) up throughout the next step.

page 8 - 2 MHP12/34J – 11447A

■

Starting From Platform Control Box

Before you begin to operate the MHP12/34J from the platform control box, a qualified operator must perform the "Daily Inspection and Maintenance" as

described in chapter 7, of this manual.

To start the engine from the platform control box you must first set some switches on the ground control box, including setting the outriggers and leveling the machine.

(See page 8-2 for information on setting the stabilizers)

1. Insert the key

 into the Master Key Switch at the ground control box and turn the key on

(see Figure 8.4).

8. Operation

3. Enter the platform, close the gravity gate



, and attach the lanyard of your fall restraint

(safety harness) to one of the anchor points

‚

(see Figure 8.5).

Figure 8.4

2. Set the Platform/Ground Selector

€

(see

Figure 8.4) at the ground control box to

PLATFORM.

Figure 8.6

4. Set the Emergency Stop switch

ƒ to (ON)

(see Figure 8.6).

5. Turn the Anti-Restart switch

„ to ON (see

Figure 8.6).

6. If the engine is at ambient temperature (cold), hold the Choke Switch

…

(see Figure 8.6) up throughout the next step.

7. Turn the Anti-Restart switch

„ to START and hold it there until the engine starts or for a maximum time of 6 seconds. When the engine starts, release the key (6) and the choke switch

…

, if you used it (see Figure

8.6).

CAUTION

If the engine does not start in 6 seconds, turn the Anti-Restart switch OFF.and release the choke. Wait 60 seconds before trying to restart the engine again. Continual cranking of the starter motor will only result in its damage.

The engine should now be running, and the

MHP12/34J is ready to begin work.

MHP12/34J – 11447A

Figure 8.5

page 8 - 3

8. Operation

■

Moving The Platform

The engine should already be running (as described earlier in this chapter), before you start this section.

DANGER

DO NOT operate near energized electrical c o n d u c t o rs . M a i n t a i n t h e ( M . S . A . D. ) ,

Minimum Safe Approach Distance to energized power lines. See the "Electrical

Hazard" section, in this manual for a complete explanation of the hazards c o n c e r n i n g e l e c t r i c i t y. M a i n t a i n t h e clearances shown on the decal attached to the platform.

Be certain that the space into which you are about to move the platform, boom, turntable, and/or chassis is free of obstructions.

ALWAYS look in the direction of movement.

When you operate from the platform control box, be sure that the lanyard of your fall restraint is attached to an anchor point on the platform mount. Also, be sure that platform gate is closed behind you.

❑

From Ground Control Box

Each of the ways the platform can move is shown in the following photograph and switch illustration:

The photograph shows the platform switches that cause the platform or booms to move.

These platform moving switches, (

 through

‚

), will produce the movement as indicated by the illustration's to the right.

UP

DOWN

UP

UPPER

BOOM

DOWN

UP

JIB

BOOM

DOWN

LEFT

1. Lower Boom

2. Upper Boom

3. Jib Boom

RIGHT

SLEW

4. Slew

Figure 8.8 - Ground Control Box Operation

Platform Moving Switch Illustration

Figure 8.7 - Movement Control, Ground

Control Box

page 8 - 4 MHP12/34J – 11447A

8. Operation

❑

From Platform Control Box

When you operate from the platform control box, be sure that the lanyard of your fall restraint is attached to an anchor point on the platform mount. Also, be sure the gravity gate is closed. Each of the ways the platform can move is shown in the following photograph and switch illustration:

The photograph shows the platform switches that cause the platform or booms to move.

These platform moving switches, (

 through

ƒ

), will produce the movement as indicated by the illustration's to the right.

UP

LOWER

BOOM

DOWN

1. Lower Boom

UP

UPPER

BOOM

DOWN

2. Upper Boom

UP

JIB

BOOM

DOWN

3. Jib Boom

Figure 8.9 - Movement Control, Platform

Control Box

You must be stepping on the platform foot switch

„ when you use any of the platform moving switches

(

 through

ƒ

) The platform foot switch is a safety feature to prevent the platform from moving if a platform moving switch, or controller, is accidentally pushed.

LEFT

RIGHT

SLEW

4. Slew

ROTATE

PLATFORM

5. Platform Rotation

LEFT RIGHT

Figure 8.11 - Platform Control Box Operation

Platform Moving Switch Illustration

■

Securing for Day

At the end of each work day the MHP12/34J should be returned to the STOWED POSITION and locked as described under “Stowing” in the "Stowing and

Transporting" chapter 10.

Figure 8.10 - Platform Foot Switch

MHP12/34J – 11447A page 8 - 5

8. Operation

page 8 - 6 MHP12/34J – 11447A

■

Emergency Operation Procedures

The following procedures are emergency procedures only. DO NOT use them for normal operation.

Their purpose is to get the platform and operator safely to ground when the MHP12/34J will not start or some other problem keeps the platform from lowering in the normal way.

❑

Operation From Platform Control Box

Switch settings listed in the three steps below must exist at the ground before emergency operation procedures will work at the platform control box:

9. Emergency Operation

5. Set the Anti-Restart switch

ƒ

(see Figure

9.2) to ON.

Figure 9.3

6. Step on the platform foot switch

„

(see

Figure 9.3).

Figure 9.1

1. The Master Key Switch

 must be ON (see

Figure 9.1).

2. The Emergency Stop switch

€ must be

(ON) (see Figure 9.1).

3. The Platform/Ground Selector switch



(see Figure 9.1) must be set to PLATFORM.

Figure 9.2

4. Set the Emergency Stop switch

‚ to ON

(see Figure 9.2).

MHP12/34J – 11447A

Figure 9.4

7. Hold the Emergency Lower switch

…

(see

Figure 9.4) down and the platform will begin lowering.

NOTE

To slew when using emergency lowering operate the slew switch

† in the direction required (see

Figure 9.4).

page 9 - 1

9. Emergency Operation

❑

Operation From Ground Control Box

Figure 9.5 - Manual Lower Valve

1. Open manual valve

 to lower platform

NOTE

To operate the slew function from the ground control box when using the emergency lowering valve the Master Key Switch, and Emergency

Stop switch must be on and the

Platform/Ground Selector must be set to ground. The slew direction can then be selected using the slew switch

†

(see Figure 9.1). The slew function will only operate while the booms are lowering.

page 9 - 2 MHP12/34J – 11447A

10. Stowing and Transporting

■

Stowing

At the end of each work day (or in preparation for lifting or storage) a qualified operator should put the

MHP12/34J into its stowed position then lock by placing the two boom lock pins in position.

❑

The correct stowed position is shown here.

❑

Lower boom lock pin

Figure 10.1 - Stowed Position

To bring the MHP12/34J into the STOWED

POSITION use the controls on the ground control box or platform control box to:

1. Fully lower all booms.

2. Align the lower boom travel lock with the boom rest mounted to the drawbar.

3. Place both boom restraints and keepers in place.

❑

Upper boom lock pin

Figure 10.3 - Lower Boom Lock Pin

If using the upper controls go now to the ground controls and:

4. Switch the Ground / Platform selector to ground.

5. Set the Booms / Stabilizer selector to stabilizer.

6. Using the stabilizer controls raise the stabilizers (rear first to avoid damage to the jockey wheel)

7. Set the Master Key switch on the ground control box to off and remove the key.

■

Transporting

❑

Trailering

When moving the MHP12/34J on a transport trailer the following points must be adhered to.

DANGER

1. The unit must be in the stowed position.

2. Care must be taken when loading the unit onto the trailer that it does not run away.

Chock the wheels and apply the handbrake.

3. The MHP12/34J can be loaded by forklift.

Figure 10.2 - Upper Boom Lock Pin

MHP12/34J – 11447A page 10 - 1

10. Stowing and Transporting

❑

Forklift points

Figure 10.4 - Forklift Points

❑

Securing to a Transport Vehicle

4. Tie down only with the 4 tie down lugs.

DO NOT

●

Tie down over the draw bar.

●

Tie down over the booms or level rods.

●

Tie down over the platform.

Reverse the above procedure after transporting.

■

Towing

The correct size tow ball MUST be used when connecting the draw bar to the towing vehicle.

The coupling is stamped with the correct size.

Be aware of local transport regulations.

1. Visually inspect the tow ball on the towing vehicle.

2. Ensure the tow ball is matching in size with the tow coupling on the trailer.

3. Ensure the tow ball is mounted correctly and is fitted tightly.

4. Connect the tow coupling and ensure the latching mechanism is working and has latched.

5. Connect the break-away chain to the towing vehicle, unset the reversing lock on the tow coupling.

6. Check that the bolt, D-Clamp or attaching device is able to take the rated load.

7. Connect the trailer road lights to the towing vehicle and test that the functions work.

8. Retract the jockey wheel and place it in the stowed position (see photograph top right).

9. Check the covers are secure and no debris or work tools are in the platform.

DANGER

Death or Serious Injury can result from loosing control of a trailer when towing.

Never tow above the rated speed marked on the draw bar.

Never tow the unit with an under rated vehicle . Always check manufacturers vehicle load specifications.

page 10 - 2 MHP12/34J – 11447A

11. Options

■

Bi-Energy

This option consists of a column-mounted 24V DC motor located under the fiberglass covers. This provides an alternative power source to the gasoline engine. The DC motor is powered by four

“Deep Cycle Traction Batteries” and an automatic battery charger that are also mounted on the column under the fibreglass covers.

❑

DC motor operation

A switch (see Figure 11.1) is used to select either the gasoline or the DC motor. If the DC motor is selected the gasoline engine will not start and if the gasoline engine is selected the DC motor will not run.

❑

Batteries

Since the Bi-Energy MHP12/34J is powered by

“Deep Cycle Traction Batteries” particular attention should be paid to the batteries on-board charger to ensure proper operation.

The batteries are enclosed beneath covers on either side of the column assembly. (See Figure

11.3). Raise the covers to gain access to the batteries.

NOTE

These covers should also be raised whilst charging to allow the gasses to escape.

Figure 11.1 - Gasoline / DC Motor Select

Switch

Once the DC mode is selected the motor will then power all of the functions including the stabilisers in the normal manner, the only difference being that the DC motor will only “run” when a function is selected.

There is a “Master Battery Isolator Switch” mounted below the main lower control station, (see

Figure 11.2). This will shut down the DC motor if it is turned to the “Off” position.

Figure 11.2 - Battery Isolate Switch

MHP12/34J – 11447A

Figure 11.3 - MHP12/34J Covers Raised

DANGER

Lead-acid batteries contain sulphuric acid which will damage eyes or skin on contact.

When working around batteries, ALWAYS wear a face shield to avoid acid in eyes. If acid contacts eyes, flush immediately with clear water and get medical attention.

Wear rubber gloves and protective clothing to keep acid off skin, if acid contacts skin, wash off immediately with clear water

Lead-acid batteries produce flammable and explosive gasses. NEVER allow smoking, flames or sparks around batteries.

NOTE

Refer to the maintenance section of the Repair

Parts manual for more information on battery care and maintenance.

❑

Battery charger

The Bi-Energy MHP12/34J is fitted with an on-board automatic battery charger (see Figure

11.4). The charger has an electronic timer that will page 11 - 1

11. Options

enable it to completely re-charge the batteries and automatically turn off after the cycle is completed.

Figure 11.4 - On-Board Battery Charger

The battery charger is fitted with an “interlock”. This means that during the charging cycle all functions on the machine are inoperative and will remain so until the charger is switched off.

The charging cycle may last from 1 to 12 hours depending on the state of the batteries. If the charging cycle should exceed 16 hours ( indicating a fault) the charger will automatically shut down and the batteries should be checked.

DO NOT re-charge the batteries unless the electrolyte level has been checked.

DO NOT allow smoking, flames or sparks around batteries.

DO ENSURE the covers are in the open position during charging to allow gasses to escape.

■

Self Levelling Stabiliser

This option allows the stabilisers to be lowered and the unit to be levelled by operating one switch at the lower control station.

❑

Self levelling stabiliser operation

To operate the master key switch

 must be on. Select stabiliser using the Stabiliser/Boom switch

€

.

(See Figure 11.5)

Momentarily (3 - 6 seconds) press the stabiliser lower switch



(see Figure 11.5), this will lower all four stabilisers and allow the unit to “self level”. The boom can now be operated in the normal manner.

When raising the stabilisers the switch

 must be held in the raise mode until all four stabilisers are fully raised into their stowed position.

■

Air Line To Platform

This consists of

*

” pressure flex yellow hose rated at

150 psi working pressure, fitted with quick disconnect couplers at each end .

■

Dual Fuel

This option consists of an AC motor rated at either

110 or 230 volts AC 50/60Hz mounted under the fiberglass covers. A selector switch is used to change from gasoline to electric. The same controls are used to stop and start the electric motor.

This option is used in shopping malls and other built up areas.

■

Work Lights

Rubber encased work lights can be fitted to the platform guardrails. The lights are swivel mounted and each has its own switch.

■

Flashing Light

●

For this option see Chapter 2 page 3

■

RCD/ELCB AC Outlet

A 3 core wire rated at 600 volts AC 15 amps is run up the booms as standard.

●

For this option see Chapter 2 Page 3.

■

Sandblast Protection Kit

This option consists of a bellows type cover fitted to each boom cylinder shaft. The bellows prevent sand and paint from damaging the cylinder rods and seals, and thus prevent hydraulic oil leaks.

CAUTION

D O N OT p a i n t o r s a n d bl a s t f ro m a n

MHP12/34J unless the cylinder rods are protected by bellows.

Figure 11.5 - Stabiliser Operation Switches

page 11 - 2 MHP12/34J – 11447A

■

Platform Rotator

This option allows the operator to move the platform around the boom, 45 o each side of center, to gain better access to work sites.

11. Options

MHP12/34J – 11447A page 11 - 3

11. Options

page 11 - 4 MHP12/34J – 11447A

12. Fire Fighting and Chemical Containment

■

Hazardous Components

Snorkel products may contain materials and objects that potentially could become significant fire or environmental hazards during the lifetime of the machine.

The materials marked in the following list with the symbol j are contained in the MHP12/34J:

1. Antifreeze (ethylene glycol)

2 j

. Battery, lead/acid

3. Diesel fuel

4. Foam in tires

5 j

. Gasoline

6 j

. Hydraulic oil

7. Liquefied petroleum gas

8 j

. Motor oil

The rest of this chapter lists manufacturers’ information you will need if you ever have to control any of the above items during an upset or emergency.

❑

Antifreeze (UN 1993)

☞

Fire extinguishing media:

Dry Chemical, foam, or CO

2

.

☞

Special fire fighting procedures:

Water spray may be ineffective on fire but can protect fire fighters and cool closed containers. Use fog nozzles if water is used.

DANGER

DO NOT enter confined fire space without full bunker gear. (Helmet with face shield, bunker coats, gloves & rubber boots). Use a

NIOSH approved positive pressure self contained breathing apparatus. Keep container tightly closed. Isolate from oxidizers, heat and open flame.

☞

Spill or leak:

Small - mop up with absorbent material and transfer to hood.

☞

Waste disposal method:

Small - evaporate until all vapors are gone. Dispose of remainder by legally applicable methods.

❑

Battery, Lead/Acid (UN 2794)

☞

Extinguishing media:

Dry chemical, foam, or CO

2

.

☞

Special fire fighting procedures:

Use positive pressure, self contained breathing apparatus.

☞

Unusual fire and explosion hazards:

Hydrogen and oxygen gases are produced in the cells during normal battery operation.

DANGER

Hydrogen gas is flammable and oxygen supports combustion. These gases enter the air through the vent caps. To avoid the chance of a fire or explosion, keep sparks and other sources of ignition away from the battery.

☞

Spill or leak:

Remove combustible materials and all sources of ignition. Contain spill by diking with soda ash (sodium carbonate) or quicklime (calcium oxide).

Cover spill with either chemical. Mix well. Make certain mixture is neutral then collect residue and place in a drum or other suitable container. Dispose of as hazardous waste.

DANGER

ALWAYS wear acid resistant boots, face shield, chemical splash goggles, and acid resistant gloves when handling acid spills or leaks.

NOTE

DO NOT release UN-neutralized acid!

☞

Waste disposal method:

Sulfuric Acid: Neutralize as above for a spill, collect residue, and place in a drum or suitable container. Dispose of as hazardous waste.

NOTE

DO NOT flush lead contaminated acid to sewer.

MHP12/34J – 11447A page 12 - 1

12. Fire Fighting and Chemical Containment

☞

Waste disposal method

Batteries: Send to lead smelter for reclamation following applicable federal, state, and local regulations.

❑

Diesel Fuel (NA 1993)

☞

Extinguishing media:

Use water spray, dry chemical, foam, or CO

2

.

☞

Special fire fighting procedures:

Use water to keep fire exposed containers cool. If leak or spill has not ignited, use water spray to disperse the vapors and to provide protection for personnel attempting to stop a leak. Water spray may be used to flush spills away from exposures.

☞

Unusual fire and explosion hazards:

Products of combustion may contain carbon monoxide, carbon dioxide, and other toxic materials.

DANGER

DO NOT enter enclosed or confined space without proper protective equipment including respiratory protection.

☞

Spill or leak:

Contain spill immediately in smallest area possible.

Recover as much of the product itself as possible by such methods as vacuuming, followed by soaking up of residual fluids by use of absorbent materials.

Remove contaminated items including contaminated soil and place in proper containers for disposal. Avoid washing, draining, or directing material to storm or sanitary sewers .

☞

Waste disposal method:

Recycle as much of the recoverable product as possible.

Dispose of non-recyclable material as a RCRA hazardous waste by such methods as incineration, complying with federal, state, and local regulations.

❑

Foam In Tires

☞

Extinguishing media:

Water, dry chemical, foam, or CO

2

.

☞

Special fire fighting procedures:

Evacuate non emergency personnel to a safe area.

☞

Unusual fire and explosion hazards:

Fire fighters should use self contained breathing apparatus. Avoid breathing smoke, fumes, and decomposition products.

Use water spray to drench smoldering elastomer.

Product may melt, after ignition, to form flammable liquid.

DANGER

Burning produces intense heat, dense smoke, and toxic gases, such as carbon monoxide, oxides of nitrogen, and traces of hydrogen cyanide.

☞

Spill or leak:

Pick up and handle as any other inert solid material.

☞

Waste disposal method:

Not considered a hazardous material. Dispose of material according to any local, state, and federal regulations.

❑

Gasoline (UN 1203)

☞

Extinguishing media:

Dry chemical, foam, or CO

2

.

☞

Special fire fighting procedures:

Water may be ineffective to extinguish, but water should be used to keep fire exposed containers cool. If a leak or spill has not ignited, use water spray to disperse the vapors and to protect personnel attempting to stop a leak. Water spray may be used to flush spills away from areas of potential ignition.

☞

Unusual fire and explosion hazards:

Highly Flammable. Products of combustion may contain carbon monoxide, carbon dioxide and other toxic materials.

DANGER

DO NOT enter enclosed or confined space without proper protective equipment including respiratory protection.

page 12 - 2 MHP12/34J – 11447A

12. Fire Fighting and Chemical Containment

☞

Spill or leak:

Review fire and explosion hazards before proceeding with clean up. Use appropriate personal protective equipment during clean up. Dike spill. Prevent liquid from entering sewers, waterways, or low areas. Soak up with sawdust, sand, oil dry or other absorbent material. Shovel or sweep up.

Remove source of heat, sparks, flame, impact, friction or electricity including internal combustion engines and power tools. If equipment is used for spill cleanup, it must be explosion proof and suitable for flammable liquid and vapor.

NOTE

Vapors released from the spill may create an explosive atmosphere.

☞

Waste disposal method:

Treatment, storage, transportation and disposal must be in accordance with applicable federal, state, provincial, and local regulations.

CAUTION

DO NOT flush to surface water or sanitary sewer system. By itself, the liquid is expected to be a RCRA ignitable hazardous waste.

❑

Hydraulic Oil (UN 1270)

☞

Extinguishing media:

Use water spray, dry chemical, foam, or CO

2

.

☞

Special fire fighting procedures:

Water or foam may cause frothing. Use water to keep fire exposed containers cool. Water spray may be used to flush spills away from exposures.

☞

Unusual fire and explosion hazards:

Products of combustion may contain carbon monoxide, carbon dioxide, and other toxic materials.

DANGER

DO NOT enter enclosed or confined space without proper protective equipment including respiratory protection.

☞

Spill or leak:

Contain spill immediately in smallest area possible.

Recover as much of the product itself as possible by such methods as vacuuming, followed by soaking up of residual fluids by use of absorbent materials.

Remove contaminated items including contaminated soil and place in proper containers for disposal. Avoid washing, draining or directing material to storm or sanitary sewers .

☞

Waste disposal method:

Recycle as much of the recoverable product as possible.

Dispose of non-recyclable material as a RCRA hazardous waste by such methods as incineration, complying with federal, state, and local regulations.

❑

Liquefied Petroleum Gas (UN 1075)

☞

Extinguishing media:

Water spray. Class A-B-C or BC fire extinguishers.

☞

Special fire fighting procedures:

Stop flow of gas. Use water to keep fire exposed containers cool. Use water spray to disperse unignited gas or vapor.

If ignition has occurred and no water available, tank metal may weaken from over heating. Evacuate area. If gas has not ignited, LP gas liquid or vapor may be dispersed by water spray or flooding.

☞

Unusual fire and explosion hazards:

Highly Flammable. Products of combustion may contain carbon monoxide, carbon dioxide and other toxic materials.

DANGER

DO NOT enter enclosed or confined space without proper protective equipment including respiratory protection.

☞

Spill or leak:

Keep public away. Shut off supply of gas. Eliminate sources of ignition. Ventilate the area. Disperse with water spray.

Contact between skin and these gases in liquid form can cause freezing of tissue causing injury similar to thermal burn.

MHP12/34J – 11447A page 12 - 3

12. Fire Fighting and Chemical Containment

NOTE

Vapors released from the spill may create an explosive atmosphere.

☞

Waste disposal method:

Treatment, storage, transportation and disposal must be in accordance with applicable federal, state, provincial, and local regulations.

❑

Motor Oil (UN 1270)

☞

Extinguishing media:

Use water spray, dry chemical, foam, or CO

2

.

☞

Special fire fighting procedures:

Water or foam may cause frothing. Use water to keep fire exposed containers cool. Water spray may be used to flush spills away from exposures.

☞

Unusual fire and explosion hazards:

Products of combustion may contain carbon monoxide, carbon dioxide, and other toxic materials.

DANGER

DO NOT enter enclosed or confined space without proper protective equipment including respiratory protection.

☞

Spill or leak:

Contain spill immediately in smallest area possible.

Recover as much of the product itself as possible by such methods as vacuuming, followed by soaking up of residual fluids by use of absorbent materials.

Remove contaminated items including contaminated soil and place in proper containers for disposal. Avoid washing, draining or directing material to storm or sanitary sewers .

☞

Waste disposal method:

Recycle as much of the recoverable product as possible.

Dispose of non-recyclable material as a RCRA hazardous waste by such methods as incineration, complying with federal, state, and local regulations.

page 12 - 4 MHP12/34J – 11447A

13. Operator's Troubleshooting

■

Troubleshooting

All of the actions described in this chapter may be performed by an MHP12/34J operator, a trained and qualified service technician is not required.

The first column, of the following chart, lists some common problems encountered by MHP12/34J operators.

The second column lists some of the causes for

❑

Operator Troubleshooting Chart

Problem

Engine will not crank.

Engine cranks but will not start.

Engine runs but no outrigger function.

Engine runs but no boom function.

Bleed down at platform inoperative.

CAUTION

Any problem that cannot be fixed by actions listed below should be referred to a trained and qualified MHP12/34J service technician.

Cause

1. Flat battery.

2. Main circuit breaker, in ground control box, has tripped..

Remedy

Replace / charge battery.

Reset circuit breaker , then try to start the engine. If it will not start, refer the problem to a qualified service technician.

3. Loose battery terminals . Tighten battery leads at battery.

1. Out of fuel.

2. Fuel tap off.

Fill the engine with the correct type / grade of fuel.

Locate fuel tap on engine and turn to ON.

1. Leg / boom switch in lower control box incorrectly set

Switch to Outriggers to operate outriggers.

Turn Speed Control C.W. until function starts.

1. Speed control set too

SLOW.

2. Outriggers not set correctly.

3. Lack of hydraulic oil.

1. Flat battery.

All outriggers must be set on firm ground before boom functions will operate.

A. Check hydraulic system for leaks.

B. Top up the oil tank with the correct type / grade of hydraulic oil.

A. Charge / replace the battery.

B. Use Manual Bleed Down from lower station.

each problem. The third column lists remedies.

MHP12/34J – 11447A page 13 - 1

13. Operator's Troubleshooting

page 13 - 2 MHP12/34J – 11447A

Index

A

AC outlet RCD/ELCB, 7-7

Additional information see Introduction - page iv

Automatic Shut-offs

Circuit Breakers

Main Circuit Breaker, 5-1

Outriggers, 5-1

B

Battery fluid level, 7-3

Battery terminals, 7-3

Bolts and fasteners, 7-4

Booms Identification, 3-5

C

Controls

Control switches

Anti-Restart, 6-4, 8-3, 9-1

Boom Speed, 6-2, 6-4

Choke/Cold Start, 6-2, 6-4, 8-2, 8-3

Emergency Lower, 6-4

Emergency Stop, 6-2, 6-4, 8-1

Emergency Stop switch, 8-2, 8-3, 9-1

Foot Switch, 6-4

Jib Boom, 6-2, 6-4

Lift Enable, 6-2

Lower Boom, 6-2, 6-4

Master Key Switch, 6-2, 7-1, 8-2, 8-3, 9-1

Platform Rotate, 6-4

Platform/Ground Selector, 6-2, 8-2, 8-3, 9-1

Slew, 6-2, 6-4

Stablizer / Boom Secector Switch, 6-2

Upper Boom, 6-2, 6-4

Ground Control Box, 6-2

Control switches, 6-2

Controls location illustration, 6-3

Platform Control Box

Control switches, 6-4

Controls location illustration, 6-5

Controls and Control Decals Locations, 6-1

Crushing hazard, 1-2

D

Daily Inspection and Maintenance Table, 7-1

E

Electrical

Electrocution, 1-1, 8-1

MHP12/34J – 11447A

Electrical Hazard Warning see Electrical Hazard - page i

Emergency lower, 7-6

Emergency Operation, 9-1

Operation From Ground Control Box, 9-2

Operation From Platform Control Box, 9-1

Procedures, 9-1

Engine

Cooling system, 3-2

Displacement, 3-2

Engine oil level, 7-2

Fuel, 3-2

Fuel consumption, 3-2

Fuel grade, 3-2

Fuel leaks, 7-2

Fuel tank cap, 7-2

Ignition system, 3-2

Make, 3-2

Model, 3-2

Oil capacity, 3-2

Oil grade, 3-2

Type, 3-2

Engine Data, 3-2

F

Falling hazards, 1-1

Flashing light, 7-5

G

Gauges

Hourmeter, 4-1

Hydraulic Oil Level, 4-1

Level Bubble, 4-1

General Specifications, 3-1

Ground Control Box Controls, 6-3

H

Hazardous Components, 12-1

Battery, Lead/Acid (UN 2794), 12-1

Gasoline (UN 1203), 12-2

Hydraulic Oil (UN 1270), 12-3

Motor Oil (UN 1270) , 12-4

Hydraulic oil

Filler cap, 7-3

Hydraulic oil level, 7-3

I

Inspection

Operators daily inspection, 7-1

Inspection and Maintenance Table, 7-1

index 1

Index

Insulation rating, 3-1

L

Left side view of machine, 3-6

Light Flashing, 7-5

Lower control box, 7-6

M

Maintenance personnel see Introduction - page iii

Maximum height to basket floor, 3-1

Maximum outreach, 3-1

Maximum outreach height, 3-1

Maximum rated axle capacity, 3-1

Maximum towing speed, 3-1

Maximum width of base

Outriggers extended, 3-1

Outriggers retracted, 3-1

Minimum Safe Approach Distance see Electrical Hazard - page ii

N

Nomenclature And Serial Numbers, 3-5

O

Operating Procedures, 8-1

Control Stations, 8-1

Emergency Stopping, 8-1

Moving The Platform, 8-4

Starting From Ground Control Box, 8-2

Starting From Platform Control Box, 8-3

Operation, 8-1

Operators

Qualified, 7-1, 8-2

Other Safety Devices, 2-1

Overall Dimensions MHP12/34J, 3-3

Overall height, 3-1

P

Placards and decals, 7-7

Inspection drawing, 7-8

Standard placards and decals, 7-7

Platform

Foot switch, 8-5

Lanyard anchor points, 7-5

Platform Control Box Controls, 6-5

Platform size, 3-1

Pre-start Inspection, 1-1

index 2

Q

Qualified operators see Introduction - page iii

R

RCD/ELCB Outlet (option), 5-1

Responsibilities of owners and users see Introduction - page iv

Right side view of machine, 3-5

S

Safe Operation, 1-1

Safe working load, 3-1

Safety Decals and Placards, 1-3

Location illustration, 1-4

Safety Devices

Bubble level, 2-2

Emergency Stop Switches, 2-1

Flashing light, 2-3

Foot switch, 2-2

Gravity gate, 2-2

Guardrails, 2-2

Lanyard anchor points, 2-1

RCD/ELCB AC outlet, 2-3

Safety Device Information, 2-1

Safety precautions

Fuel Handling Precautions, 1-3

Mounting and Dismounting Precautions, 1-2

Operating Precautions, 1-2

Operator, 1-2

Operator Maintenance Precautions, 1-3

Personnel Precautions, 1-2

Starting and Stopping Precautions, 1-2

Sandblast protection kit, 8-1

Securing for Day, 8-5

Serial number location, chassis, 3-6

Signs, Caution, Danger, Notes see Introduction - page iii

Standard colour, 3-1

Stowing

Trailering

Forklift points, 10-2

Stowing the MHP12/34J, 10-1

Boom lock pins, 10-1

Boom restraints and keepers, 10-1

Structural damage and welds, 7-4

Boom welds, 7-5

T

Tipover hazard, 1-1

MHP12/34J – 11447A

Index

Towing, 10-2

Bolt, D-Clamp or attaching device, 10-2

Covers and debris, 10-2

Jockey wheel, 10-2

Latching mechanism, 10-2

Rated speed, 10-2

Road lights, 10-2

Tow ball, 10-2

Under rated vehicle, 10-2

Trailer tongue weight, 3-1

Transporting

Trailering

Forklift points, 10-2

Transporting the MHP12/34J, 10-1

Securing to a Transport Vehicle, 10-2

Trailering, 10-1

Travelling height, 3-1

Troubleshooting, 13-1

Operator Troubleshooting Chart, 13-1

Turntable rotation, 3-1

W

Warranty - Limited see inside front cover

Weight, 3-1

Wheels and tyres, 7-4

Wiring harnesses, 7-2

Loose connections, 7-2

Work Place Inspection and Practices, 1-1

Working Envelope MHP12/34J, 3-4

Working height, 3-1

MHP12/34J – 11447A index 3