Tech Tips

It is important, when replacing any pieces of the modular key switches, to use the correct switch blocks and key operator parts and to install them in the correct position. For example, the current production Skyjack boomlift models 40/45T, 61/66T, 46/63AJ, and 82/86T with the Deutz 2.9L engine use a modular style key switch at the base controls.

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The Skyjack Vertical Mast VM and the SJIII electric scissor models that use a Motor Controller – the units labeled as MC - both use a Motor Controller to regulate the speed of the functions. These Motor Controller equipped models use the same pump motor contactor as the models without a Motor Controller – BUT with one important difference: The Motor Controller units require a suppression, or flyback diode between the coil terminals on the contactor.

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With the publication of the new ANSI/SAIA regulations for Mobile Elevating Work Platforms (MEWPs), there are many changes to the DC Electric Powered scissor lifts. There are some changes that you can easily see. The platform, the scissor assembly, and the base are redesigned, with a new style plastic control box and control cable mounting. The pothole bar mechanisms have been redesigned and are mounted to the frame instead of the trays, and a new model battery charger is on-board. 

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Skyjack Vertical Mast Lifts, Compact and Conventional Electric Scissor Lifts, and Boom Lifts are equipped with a Tilt Switch as standard equipment. Use the information below to locate the Tilt Switch on the equipment listed. For Vertical Mast Lifts – SJ12 and SJ16 models, .... For SJIII Compact and Conventional models, ..... For Boom models, the Tilt Switch is mounted inside the base control console.

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With the incorporation of a Motor Controller to the Skyjack Vertical Mast and SJIII DC Electric Scissor Lifts, several things are different from the Hydraulic Proportional units. Operationally, the Hydraulic Proportional units control the speed of the functions by varying the flow of oil through the proportional valve. For the Motor Controlled units, the speed of the pump motor is varied to regulate the oil flow.

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The USB Flash Drive (part #167847) that is available from our parts department contains the current Service and Parts manuals. This flash drive is an easy way for service personnel to access the manuals without internet access. It is perfect for technicians in the field with a laptop but no internet connection. It also allows the technician to access the correct manual for the serial number of the unit they are working on.

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The electric powered SJ30 AJE/ARJE articulating booms and the SJ6832 RTE rough terrain scissor models use a motor controller system for function operation. The system features an on-board Hour Meter/Diagnostic Display. When the unit is powered up, there will be some general information shown on the display.

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Skyjack electric scissor lifts (MC labeled units) and vertical mast units (SJ12 & SJ16) both use a Motor Controller to regulate the speed of functions. These Motor Controller equipped models use the same pump motor contactor as the models without a Motor Controller, but with one important difference: the Motor Controller units require a suppression, or flyback diode between the coil terminals on the contactor.

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All Skyjack mobile elevating work platforms are equipped with a manual storage box. The weather resistant plastic box is located either on the platform or in the base control area. The manual storage box should always be in good condition – attached securely to the machine, no missing parts, and weather tight to keep the documents inside clean and dry. The box contains important documents for personnel who use the mobile elevating work platform - the ANSI Manual of Responsibilities and the Skyjack Operating Manual for that model and serial number.

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1. The new Deutz engines with the common rail-electronic injection system will not allow the starter to crank if the fuel pump does not operate... 2. All Skyjack scissor lifts and boom lifts use dedicated ground wires for all ground connections.... 3. When installing and calibrating a tilt switch or auto level module, the most important part of the procedure is to ensure the machine frame is level....

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