Tech Tips

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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The Deutz 2.9L Tier 4 engines utilize a common rail fuel injection system. Gone is the familiar lift pump and injector pump arrangement. These engines use an electric fuel pump to deliver fuel through the filter to the high pressure fuel pump. The pump is mounted near the fuel tank near the replaceable cartridge fuel filter.

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Electrical connectors are an effective and durable way to make terminal connections at valve coils, wiring harness connections, and various other locations on equipment. Enclosed wiring terminals help to protect against corrosion-causing moisture, however, they can be susceptible to water intrusion. Time, pressure washing, improper or loose re-assembly, and damage are all factors that contribute to failure of a connector.

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Skyjack is constantly improving and developing new products for our customers. We recently added a motor controller option to our electric scissor models and have redesigned our telehandler line with the new TH series. The T and AJ model boomlifts are still relatively new with an 86-foot straight stick boom being the latest addition. An 85-foot articulating boom will debut soon.

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As a required part of each inspection, wheel assemblies and their connection to the machine must be checked. This includes looking for any signs of damage and ensuring that the wheel bolts are properly tightened. If any wheel bolts are found to be loose or not at the correct torque value of 90 ft-lb (122 Nm), each component (wheel rim, wheel bolts, hub) should be inspected to ensure that there is no damage, prior to re-assembly.

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The pothole protection system on the Skyjack SJIII model DC electric scissor lifts is designed to reduce ground clearance and assist in the stability of an elevated aerial platform in the event the aerial platform encounters a “drop-off” or “pothole.” As with all safety devices, periodic inspection and maintenance is required to ensure the proper operation of the pothole protection device.

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The new Deutz 2.9L Tier 4 diesel engines are capable of providing the technician with a flash code for engine diagnostics to assist the technician when a computer is not available. The platform and base control panels are equipped with a warning light display to alert the operator of problems.

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The electrical circuit terminal blocks used in the Skyjack Aerial Work Platforms are a method to neatly and securely terminate wires of the same circuit at a common point. Each terminal block can hold four conductors of the same circuit. Each block is attached to a metal rail mounted to the panel or control box and are ‘stacked’ side by side to form one terminal strip assembly.

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The joystick on our Vertical Mast and Electric Scissor lifts have two outputs. One output is a system voltage output to operate the pump motor, valve coils, and relays. The other output is the speed, or proportional signal. This is a variable output signal relating to the speed desired for the function.

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