JLG Vertical Mast 1230ES: Function Check

From the Ground Control Panel with no load in the platform:

• Check if the platform/off/ground selector switch and the platform lift-up/lift-down switch operate properly.

• Check that Pot-Hole-Protection system operates properly, platform raised, bars down, platform down - bars up.

• Ensure that all machine functions are disabled when the Emergency Stop Button is depressed.

• With platform raised a few feet (meters), check if the manual descent valve (located at the base of the most on the front of the machine), lowers the platform properly.

From the Platform Control Console:

• Ensure that the control console is firmly secured in the proper location.

• Check that all guards protecting switches are in place.

• Operate all functions, drive/lift mode select switch, horn button, enable trigger, and joystick functions to ensure proper operation.

• With the platform elevated 23 in. to 25 in. (58cm to 66cm) or more on a smooth, firm, and level surface, drive the machine to check if the high drive cutout speed-limit is engaged. Drive speed will be reduced from a top speed of 3mph (4.8 kph) to 0.5 mph (0.8 kph)

• Ensure that all machine functions are disabled when the Emergency Stop Button depressed.

With the platform in transport (stowed) position.

• Drive the machine on a grade, not to exceed the rated gradeability, and stop to ensure the brakes hold.

• Check the tilt indicator light/alarm to ensure proper operation. The light/alarm should be activated when tilted at or beyond the values in Table 2-2.