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Table 4.5 Maximum Platform Capacities (Evenly Distributed)

Capacity

Number of

Persons

Capacity

Number of

Persons

500 lb.

250 lb.

28 mph

227 kg

113 kg

45 km/h

403A

Total

Extension Platform

MODEL

Maximum

Wind Speed

Tilt Cutout

Setting

4740

2 Persons

1 Person

1.5° x 3.5°

Page 74

SJIII 4740

Tables

Section 4

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Summary of Contents for SJIII 4740

Page 1: ...198735AGA April 2018 DC ELECTRIC SCISSORS MODEL SJIII 4740 OPERATING MANUAL ANSI CSA...

Page 2: ...2766 Australia Tel 61 0 2 9854 0700 Fax 61 0 2 9854 0777 Skyjack Brasil Indaiatuba SP Brasil 13347 653 Tel 55 19 3936 0132 Alameda J piter 710 Loteamento American Park Empresarial Skyjack Service Cen...

Page 3: ...ntly hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious i...

Page 4: ...ification Optional Equipment Attachments 41 3 7 Operator s Responsibility 44 3 8 Start Operation 45 3 9 Guardrail Folding Procedures 50 3 10 Loading Unloading 58 3 11 Moving the MEWP Through a Doorway...

Page 5: ...ew product to be free of defective parts and workmanship for the first 2 years or 3000 hours whichever occurs first Any defective part will be replaced or repaired by your local SKYJACK dealer at no c...

Page 6: ...reful operator are the best insurance against an accident Therefore proper usage of this MEWP is mandatory The following pages of this manual should be read and understood completely before operating...

Page 7: ...approach distance of 10 feet from any energized power line up to 50 kV Energized power lines over 50 kV require a greater minimum approach distance to be maintained Refer to CFR 1910 333 As per CSA B3...

Page 8: ...increase the lateral surface area of the platform Increasing the area exposed to the wind will decrease MEWP stability Avoid tenting DO NOT drive elevated on a soft or uneven surface DO NOT elevate th...

Page 9: ...fting or driving Keep all body parts inside the MEWP DO NOT raise the MEWP while the MEWP is on a truck fork lift or other device or vehicle DO NOT lower the platform unless the area below is clear of...

Page 10: ...DO NOT exceed the rated capacity of the MEWP DO NOT distribute load unevenly DO NOT operate if MEWP is not working properly or if any parts are damaged or worn DO NOT leave MEWP unattended with key in...

Page 11: ...ng the MEWP should only be done using the three points of contact Use only equipped access openings Enter and exit only when the MEWP is in the fully retracted position Do use three points of contact...

Page 12: ...Page 12 SJIII 4740 Notes...

Page 13: ...erate this MEWP without proper authorization and training Failure to avoid this hazard could result in death or serious injury It is the responsibility of the operator to read completely understand an...

Page 14: ...P is out of level in any direction When activated it disables drive and lift functions of the MEWP and an alarm produces an audible sound accompanied by the amber light if equipped WARNING If the tilt...

Page 15: ...or towing Refer to Section 2 5 2 for procedure on how to release brakes manually The system contains the following controls 1 2 Figure 2 3 Disc Brake System 1 Brake auto reset valve plunger 2 Brake h...

Page 16: ...ystem is located on the hydraulic electrical compartment This system allows platform lowering in the event of an emergency or an electrical system failure Refer to Section 2 6 for the emergency loweri...

Page 17: ...h emergency stop buttons on the platform control console and the base control console are pulled out 4 Horn Push Button This push button sounds an automotive type horn 5 Inclined Drive Level Drive Swi...

Page 18: ...r to Section 5 Labels in this manual and determine that all labels are in place and are legible 2 3 2 Electrical Maintaining the electrical components is essential to good performance and service life...

Page 19: ...switches are in their neutral positions Free wheeling Valve Knob Ensure there are no loose or missing parts and there is no visible damage Brakes Ensure there are no loose or missing parts and there...

Page 20: ...s and sparks away Do not smoke near batteries WARNING Battery acid is extremely corrosive Wear proper eye and facial protection as well as appropriate protective clothing If contact occurs immediately...

Page 21: ...loose Check wheel motor assembly for loose or missing parts and signs of visible damage Ensure wheels are aligned and true vertically and horizontally WARNING Intermixing tires of different types or u...

Page 22: ...pect the sight gauge located on the side of the hydraulic oil tank The hydraulic oil level should be at or slightly above the top mark of the sight glass Hydraulic Pump and Motor Ensure there are no l...

Page 23: ...orm Ensure outlet has no visible damage and free from dirt or obstructions Platform Control Console Ensure all switches and controller are returned to neutral and are properly secured Ensure there are...

Page 24: ...shows no signs of wear and or physical damage Scissor Bumpers Ensure bumpers are secure and shows no sign of visible damage Rollers Ensure rollers are secure and there is no visible damage Ensure rol...

Page 25: ...g MEWP into service Prior to performing function tests be sure to read and understand Section 3 8 Start Operation 2 4 1 Test Main Power Disconnect Switch 1 At rear of the base turn main power disconne...

Page 26: ...ch to platform position Attempt to raise or lower the platform Result Platform raising and lowering functions should not operate 3 Select and hold off platform base key switch to base position Attempt...

Page 27: ...ndle to lower platform Result The platform should lower Test Free wheeling 1 Ensure path of intended motion is clear 2 Release the brake manually refer to Section 2 5 2 3 Turn free wheeling valve knob...

Page 28: ...1 Push in emergency stop button and attempt to activate any platform function Result All selected platform functions should not operate Test Enable Trigger Switch 1 Pull out emergency stop button 2 W...

Page 29: ...enable trigger switch causing MEWP to stop immediately 1 Ensure path of intended motion is clear 2 Activate and hold enable trigger switch 3 Drive MEWP forward and then backward Test brake by releasin...

Page 30: ...r Test Horn 1 Push horn push button Result Horn should sound Test Pothole Sensor WARNING Ensure that you maintain three points of contact to mount dismount platform 1 Use the ladder to dismount from p...

Page 31: ...other possible hazards around the MEWP when lifting 1 Ensure path of intended motion is clear 2 Raise the platform until approximately a height of 7 feet 2 meters is reached and attempt to drive forwa...

Page 32: ...peed of 2 sec 50 mm sec WARNING When pushing winching or towing do not exceed 2 mph 3 2 km h WARNING Do not push winch or tow MEWP onto a slope or brake the towing vehicle rapidly Do not pull MEWP dow...

Page 33: ...Lowering Procedure This section guides the operator on how to use the emergency lowering system This system allows platform lowering in the event of an emergency or an electrical system failure WARNI...

Page 34: ...FAMILIARIZATION FAMILIARIZATION Page 34 SJIII 4740 Notes...

Page 35: ...esponsibility for Maintenance WARNING Maintenance must be performed by trained and competent personnel who are familiar with mechanical procedures Death or serious injury could result from the use of...

Page 36: ...latform Pothole Protection Device Platform Control Console Manual Storage Box Extension Platform Battery Tray Maintenance Supports Lifting Mechanism Hydraulic Electric Tray Base SKYJACK Model SJIII 47...

Page 37: ...ly The scissor assembly is raised and lowered by single acting hydraulic lift cylinders with holding valves A pump driven by an electric motor provides hydraulic power to the lift cylinders 3 3 3 Plat...

Page 38: ...the batteries inside the battery tray Refer to Section 3 13a 2 Section 3 13b 2 for battery charging operation Figure 3 2a Battery Charger Figure 3 2b Battery Charger 3 5 3 AC Outlet on Platform This o...

Page 39: ...t further use until a complete inspection of the mechanism is performed by a qualified technician 3 5 5 Maintenance Supports 1 Figure 3 5 Maintenance Supports 1 Maintenance Supports The maintenance su...

Page 40: ...sed to lock the guardrail in place WARNING The scissor assembly must be fully lowered before raising or lowering the guardrails WARNING Before operating this MEWP check the guardrail system for loose...

Page 41: ...or normal operation 1 Status LEDs These LEDs indicate the operating or fault status of the inverter 2 On Off Switch This diagnostic slide switch activates or terminates inverter operation It should re...

Page 42: ...ual and daily maintenance inspections see Section 2 3 Function tests see Section 2 4 2 Ensure the platform is in the fully stowed lowered position WARNING To protect against unintended movement of the...

Page 43: ...form a thorough jobsite inspection prior to operating the MEWP to identify potential hazards in your work area 6 Cordon off the pathway in which you intend to travel 7 Ensure there are no personnel in...

Page 44: ...must understand and follow the step by step instructions t o t e s t a l l M E W P f u n c t i o n s The operator should make a copy of the Operator s Checklist see Table 4 7 and fill out the visual...

Page 45: ...ot use any MEWP that does not appear to be working properly has been damaged or appears to have worn or missing parts has alterations or modifications not approved by the manufacturer has safety devic...

Page 46: ...d the MEWP when lifting WARNING Do not lower the platform unless the area below is clear of personnel and obstructions 1 Activate platform control console refer to Section 3 8 3 2 Select lift off driv...

Page 47: ...to desired speed and direction of MEWP travel 5 Return controller to neutral center position to stop Release enable trigger switch WARNING To protect against unintended movement of the MEWP push in th...

Page 48: ...t against unintended movement of the MEWP push in emergency stop button after you have arrived at your desired location or elevation 3 8 8 To Extend Retract Manual Extension Platform DANGER Crushing H...

Page 49: ...esponsible CAUTION The main power disconnect switch must be turned off at the end of the shift or the batteries will drain 3 8 10 Shutdown Procedure 1 Completely lower the platform 2 On platform contr...

Page 50: ...operating this MEWP check the guardrail system for loose or missing locking pins The guardrail system must be upright and all pins must be locked in place Death or serious injury could result if the g...

Page 51: ...ppropriate height with both hands free 10 Using a stable elevated surface that provides firm footing remove the locking pins from the entrance side and fold down the rear gates Figure 3 13c Rear Gate...

Page 52: ...at the detent ball of each pin is all the way through 6 Carefully raise right side and left side guardrails up and lock into place with locking pins ensuring that the detent ball of each pin is all th...

Page 53: ...de of the platform while raising or lowering the guardrails to avoid falling To Fold the Guardrail System Down 1 Ensure MEWP is on level ground 2 Ensure extension platform is fully retracted 3 Ensure...

Page 54: ...priate height with both hands free 12 Use a stable surface that provides firm footing to access the remaining pins and rails 13 Move to the left side of the MEWP Remove the front and center mid rail p...

Page 55: ...and to fold down the rear gate Refer to Figure 3 22 for hand positions Lock into place by installing pins 8 Ensure the detent ball of the pin is all the way through Figure 3 22 Fold down the rear gate...

Page 56: ...e 5 Remove locking pin from mounting post and carefully raise extension guardrail up Lock into place with both extension mid rail pins 6 Carefully raise the rear gate and lock into place with both rea...

Page 57: ...ve on the rear gate MEWPs equipped with the full gate option have 4 pins to remove on the rear gate WARNING Before operating this MEWP check the guardrail system for loose or missing locking pins The...

Page 58: ...er shall operate machinery during lifting When it is necessary to lift the Skyjack MEWP the following conditions must be met The platform must be fully lowered The main power disconnect switch must be...

Page 59: ...ets as illustrated in Figure 3 28 3 10 2 Driving Before driving the MEWP Ramp or dock capacity should be sufficient to withstand maximum MEWP weight Ramp should be equipped with side guards to prevent...

Page 60: ...f necessary Refer to Section 3 9 for guardrail folding procedure 10 Use the ladder to dismount from platform 11 Connect platform control console to the connection at the rear of the base NOTE For some...

Page 61: ...r to mount dismount platform 24 Return guardrails to upright position if folded Refer to Section 3 9 for guardrail folding procedure WARNING Before operating this MEWP check the guardrail system for l...

Page 62: ...l there is adequate clearance to swing down upper maintenance support item 1 3 Swing upper maintenance support down from storage bracket into a vertical position 4 Swing lower maintenance support down...

Page 63: ...flooded lead acid batteries of the proper AH rating WARNING Use original or equivalent to the original parts and components for the MEWP 3 13a 2 Battery Charging Operation Figure 3 30 Battery Charger...

Page 64: ...to 100 On On Blinking 100 On On On 60133AA The charger goes into an equalizing charge mode after the batteries are charged and all 3 LEDs are ON The charger will continue to charge at a low current t...

Page 65: ...ion and for dead cells or reduced capacity Replace charger only if other problems are not found The AC line circuit breaker or fuse is blown A defective circuit breaker or fuse an overloaded circuit o...

Page 66: ...f solution add distilled or demineralized water 4 Make sure all the battery connections are tight NOTE Do not use any batteries other than the flooded lead acid batteries of the proper Ah rating WARNI...

Page 67: ...tive Batteries larger than 240 AH can be recharged but will take longer WARNING Do not disconnect the DC output wires near the batteries when the charger is ON The resulting arcing could cause the bat...

Page 68: ...Page 68 SJIII 4740 Notes...

Page 69: ...lift cut out GFI AC outlet on platform Fall Protection Anchorage Forklift pockets tie downs lifting lugs Hydraulic oil level and temperature indicators All motion audible alarm Operator horn Midrail c...

Page 70: ...ual inspection has been completed Do not use the aerial platform if an inspection has not been recorded in the last 13 months 20__ 20__ 20__ Model Number _________________ Serial Number ______________...

Page 71: ...tions Mid rail height of 26 9 in 0 68 m measured from the platform floor to the top of the mid rail Mid rail height of 20 9 in 0 53 m measured from the platform floor to the top of the mid rail Weight...

Page 72: ...ng tile carpet etc must be able to withstand more that the indicated values above OUP Overall Uniform Pressure is a measure of the average load the aerial platform imparts on the whole surface directl...

Page 73: ...stability Therefore replace tires only with the exact Skyjack approved type Failure to operate with matched approved tires in good condition may result in death or serious injury Locally Concentrated...

Page 74: ...ributed Capacity Number of Persons Capacity Number of Persons 500 lb 250 lb 28 mph 227 kg 113 kg 45 km h 403A Total Extension Platform MODEL Maximum Wind Speed Tilt Cutout Setting 4740 2 Persons 1 Per...

Page 75: ...wheeling A Wheel Tire Assembly A Platform Control Console Tie Rod Conventionals A Test Platform Emergency Stop A Greasing Points A Test Enable Trigger Switch A Hydraulic Electric Tray Side Test Steer...

Page 76: ...l Number Model Hourmeter Reading Operator s Name Printed Date Time Operator s Signature Each item shall be inspected using the appropriate section of the Skyjack operating manual As each item is inspe...

Page 77: ...SJIII 4740 Page 77 Notes...

Page 78: ...Page 78 SJIII 4740 Notes...

Page 79: ...d Safety Red indicates DANGER Safety Orange Safety Orange indicates WARNING Safety Yellow Safety Yellow indicates CAUTION Safety Green Safety Green indicates emergency lowering Safety Blue Safety Blue...

Page 80: ...ack Logo Skyjack logo 20 White 2 Skyjack Logo Skyjack logo 17 White 3 Caution Tape Stripe Caution stripe 4 Model Number Product Identifier Right Side Labels and Nameplates Model SJIII 4740 1 5 3 5 4 2...

Page 81: ...6 Keep Clear Keep clear Stay away from MEWP when in operation 7 Crushing Hazard Danger Crushing hazard 8 MOTOR CONTOLLER Indicates motor controller aerial platform Right Side Continued Labels and Nam...

Page 82: ...aution Tape Stripe Caution stripe 3 Lift and Tie Down Points Only use these points for lifting or tying down 4 Forklift Pocket Insert fork fully into pocket to lift MEWP Front Side Top View Labels and...

Page 83: ...azard Make sure hinged railing is pinned properly 8 Falling Hazard Railing Pins Horizontal If Equipped WARNING Falling Hazard Make sure hinged railing is pinned properly 9 Fall Protection Anchorage Ra...

Page 84: ...lic Oil ATF Dexron III Replace hydraulic fluid with ATF Dexron III only Replace hydraulic fluid with Bio Oil if equipped 4 TM X 2 Battery Spacers Place spacers only as shown in diagram 5 300A TM Fuse...

Page 85: ...kyjack Logo Skyjack logo 17 White 3 Wheel Load Indicates rated wheel load 4 Keep Clear Keep clear Stay away from MEWP when in operation 5 Model Number Product Identifier Left Side Labels and Nameplate...

Page 86: ...ergency stop button 2 In hydraulic compartment depress and hold Emergency Lowering Switch to activate the auxiliary lowering valves Pull out and hold the emergency lowering valve to lower platform 8 C...

Page 87: ...km h TM kg lb kg lb Horizontal Load Rating Platform Capacity Operate with rated work load in each configuration below indicated wind speed only 4 Warning Do Not Alter DO NOT alter or disable limit sw...

Page 88: ...f the base 4 Push in brake auto reset valve plunger 5 Grasp brake hand pump and rapidly depress until firm resistance is felt The brakes are now released 6 Open the free wheeling valve 7 Remove wheel...

Page 89: ...s contact the labeled cross bar and scissors are supported by both maintenance supports 4 Maintenance supports are now secured A Turn main power disconnect switch to off position B Perform inspection...

Page 90: ...or raise platform Select platform to enable platform controls off to dis able controls or base to enable base control console Push to disable controls 14 Cancer and Reproductive Harm https www p65warn...

Page 91: ...specifications Serial plates will vary may not be as shown 16 Maintenance Support Deploy maintenance support here 17 Orifice Installed Orifice installation warning Labels and Nameplates Model SJIII 4...

Page 92: ...ned drive low speed high torque or level drive high speed low torque mode Select lift off or drive mode Select to sound horn Push to disable controls The operation light illuminates to indicate upper...

Page 93: ...Cancer and Reproductive Harm https www p65warnings ca gov WARNING...

Page 94: ...www skyjack com elig lift l sninger av folk som bryr seg...

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