Function Check - JLG 1850SJ Operation & Safety Manual

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User Responsibilities, Machine Preparation, and Inspection

2.6

FUNCTION CHECK

To avoid serious injury, do not operate machine if any control levers or toggle

switches controlling platform movements do not return to the off position when

released.

To avoid a collision and injury if platform does not stop when a control switch or

lever is released, remove foot from footswitch or use emergency stop to stop

machine.

Perform the Function Check as follows:

1. From the ground control panel with no load in the platform:

a. Ensure that all machine functions are disabled when the Emergency Stop

Button is pushed in.

b. Ensure all functions stop when the function switch is released.

c. Operate all functions and ensure proper operation.

d. Raise main boom approximately horizontal, then extend and retract boom

sections. All boom sections should extend/retract together at the same rate

of speed. Any difference would indicate delayed movement and loose wire

ropes.

If delayed movement is detected in wire rope operation, lower platform to stowed

position, shut down machine, and have wire ropes inspected/ serviced by a factory

trained service technician. Loose or misadjusted wire ropes could result in serious

injury or death.

2. Check the Boom Control System. Refer to Boom Control System Check Procedure

in this section.

WARNING

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1850SJ

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