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1. Introduction

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Indicates a potentially hazardous situation which, if not avoided, could 

result in severe injury or death.

W A R N I N G

1. Introduction

1.1 INTRODUCTION

PURPOSE & LIMITATIONS

This Service & Parts Manual is designed to provide instructions and illustrations for the 

safe operation and maintenance of the MB20J & MB26J Work Platform manufactured 

by Snorkel. The purpose of this machine is to provide fast and safe access to difficult to 

reach areas. The machine may only safely operated on firm level ground. Refer to the 

Specification section for the machines access limitations.

DO NOT

 use on soft ground or on slopes greater than 2 degrees.

DO NOT

 use the lifting mechanism to raise or lower goods or persons except within the 

cage and subject to the weight limitations.

DO NOT

 enter the platform from a structure, rack or other platform.

ENVIRONMENTAL TEMPERATURE LIMITATION

, The machine is primarily for use in 

normal ambient temperatures and conditions ranging between 50c to -20c.

SCOPE

This manual includes the procedures and responsibilities for the inspection, transportation, 

safe operation, maintenance, and repair of this product. The Maintenance Section within 

the Parts & Service Manual also covers preventative maintenance and troubleshooting. 

SPECIAL INFORMATION

Throughout this manual the users attention is drawn to these special warning boxes:

1.2 GENERAL DESCRIPTION

The MB20/26J are self propelled, fast acting aerial work platforms, designed to raise two 

operators with hand tools to a platform floor height of 6.00 m and 7.76 m respectively. The 

accessible height is approximately 2.00 m above these figures. It is designed to travel with 

safe working load and work tools up to an upper limit,  See table on page 2-18 / 2-19.
The unit offers the ability to reach over obstacles but must be used on firm and level ground 

at all times.

Indicates an imminently hazardous situation which, if not avoided, will 

result in severe injury or death.

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D A N G E R

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Indicates a potentially hazardous sit uation which, if not avoided, may 

result in minor or moderate injury.

C A U T I O N

Summary of Contents for MB20J

Page 1: ...JANUARY 2018 01 00054 MB20 01 00071 MB26...

Page 2: ......

Page 3: ...L NUMBER is also stamped on top of the chassis above the front axle pivot Nameplate The Work Platform Nameplate is located externally at the FRONT of the chassis When contacting Snorkel for service or...

Page 4: ......

Page 5: ...ating See Beaufort Scale on page 1 for details NEVER attach notice boards etc to the platform as this will increase wind loading IN CASE OF EMERGENCY push EMERGENCY STOP switch to deactivate all power...

Page 6: ...NOTES...

Page 7: ...2 9 ELEVATING LOWERING THE WORK PLATFORM 2 9 TRAVEL WITH WORK PLATFORM LOWERED 2 10 TRAVEL WITH WORK PLATFORM ELEVATED 2 10 EMERGENCY SITUATIONS 2 11 EMERGENCY LOWERING BY HAND 2 11 Figure 8 Emergenc...

Page 8: ...ratures and conditions ranging between 50c to 20c SCOPE This manual includes the procedures and responsibilities for the inspection transportation safe operation maintenance and repair of this product...

Page 9: ...arm level It features a deadman enable button and selector buttons to provide pre programmed speeds for all functions except drive and steering This control station is used primarily for service type...

Page 10: ...e is limited by the pre programmed speed setting on the motor but is determined by the position of the joystick in the Upper Control Box 1 3 WORKSHOP PROCEDURES All information contained in this manua...

Page 11: ...he machine when wind speeds exceed 12 5m s 28 m p h Beaufort scale 6 BEAUFORT RATING WIND SPEED GROUND CONDITIONS M S KM H FT S M P H 3 3 4 5 4 12 25 19 4 11 5 17 75 7 5 12 0 Papers and thin branches...

Page 12: ...ach over obstacles but must be used on firm and level ground at all times DO NOT use the lifting mechanism to raise or lower goods or persons except within the cage and subject to the specified weight...

Page 13: ...with the machine to fill the batteries to the correct electrolyte level This is done by locating the battery topup valve behind the mast cover inspection door refer to figure 3 and connecting it to t...

Page 14: ...Control Station 8 Check mast chains by elevating the masts approximately 30cm above the rest position Check for correct routing of the energy chain Raise the masts to full height and check for correc...

Page 15: ...0 control module To check it s operation while in platrom drive the machine onto a suitable ramp to raise it s tilt angle above 2 degrees lift the Jib until the jib limit switch just separates a conti...

Page 16: ...cluding pre operation inspection It should never be used to position a manned or un maned platform NOTE It may be used in the event of emergency to lower the manned platform The issue of reduced speed...

Page 17: ...ON 4 STEERING SWITCH 5 SELECTOR SWITCH 6 MAST SELECT BUTTON 7 LOW HIGH TORQUE SELECTOR 8 HORN 2 DEADMAN GRIP 9 LOW BATTERY WARNING CONTROL FUNCTIONS Table 1 Platform Controls and Indicators ITEMS NAME...

Page 18: ...y charge is low and machine automatically switches into limp mode 10 Overload warning lamp Illuminates when load in basket exceeds SWL Table 2 Lower controls and Indicators LOWER CONTROL PANEL ITEMS N...

Page 19: ...t is imperative that the pre operation Safety Inspection has been completed and any deficiencies have been corrected The operator must also be fully trained in the use of this machine Before beginning...

Page 20: ...sure that the drop bar is in position 4 Check that the route is clear of persons obstructions pot holes or ledges and is capable of supporting the wheel loads Also check that the clearances above belo...

Page 21: ...d to lower the platform using the emergency lowering valves Lower the mast structure before lowering the jib platform structure NOTE Lower the masts fully before lowering the jib structure Figure 8 Em...

Page 22: ...lock ballast from the machine Remove the 13 screws connecting the ballast cover to the mast Undo the 4 bolts connecting the ballast to the mast and use a forklift to remove the ballast block The balla...

Page 23: ...RANE The MB20 26J may be lifted by an overhead hoist crane subject to the following strict procedure Raise the jib to clear the lifting straps as shown Use 4 separate lifting straps connected to a spr...

Page 24: ...e made secure by 1 Chocking the wheels 2 Securing with adequate chains or straps to the lifting lugs on the chassis Figure 5 Securing the Platform TOWING WINCHING VALVES The fail safe brakes are autom...

Page 25: ...ass of a slow moving machine W A R N I N G 2 6 AFTER USE STORAGE AFTER USE EACH DAY 1 Ensure that the platform masts and jib are fully lowered 2 Park the machine on firm and level ground never on a gr...

Page 26: ...mast and jib mount area as a minimum This will prevent moisture from entering the mast battery and chassis areas Figure 3 Battery Disconnect Battery Disconnect switch BATTERIES 1 Disconnect the batter...

Page 27: ...Acceptable PREVENTATIVE MAINTENANCE REPORT Date _______________________________ Owner _____________________________ Model No __________________________ Serial No ___________________________ Serviced...

Page 28: ...bs Maximum Drive Speed Stowed 3 30 km h 2 05mph Maximum Drive Speed Elevated 0 60km h 0 37mph Maximum Gradeability 25 25 Outside Turning Radius 1 90m 6 23ft Electrical Power Source 4 x 6V 375Ah Batter...

Page 29: ...aximum Drive Speed Stowed 3 13 km h 1 94mph Maximum Drive Speed Elevated 0 60km h 0 37mph Maximum Gradeability 25 25 Outside Turning Radius 1 93m 6 33ft Electrical Power Source 4 x 6V 375Ah Battery 4...

Page 30: ...2 Operation Specifications 2 20 NOTES...

Page 31: ......

Page 32: ...A ASIA PHONE 44 0 845 1550 057 FAX 44 0 845 1557 756 NORTH SOUTH AMERICA PHONE 1 785 989 3000 TOLL FREE 1 800 225 0317 FAX 1 785 989 3070 AUSTRALIA PHONE 61 2 9725 4000 FAX 61 2 9609 3057 NEW ZEALAND...

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