Case 521D Wheel Loaders Operator's Manual 6-36651NA - PDF DOWNLOAD

Page 120

OPERATING INSTRUCTIONS

MACHINE OPERATION Transmission Operation The transmission in this machine has four (4) forward speeds and three reverse speeds. Always select the correct speed for the job. If you have frequent stalls (engine running at full throttle and the wheels not turning) select a lower gear. The transmission can be operated in Automatic or manual mode. The foot brake must be actuated while engaging the transmission to release the parking brake.

Manual Mode Operation To put the transmission in the Manual mode press the bottom of the Autoshift switch.

Up-Shifts Manual Mode TRIM THIS EDGE

You can shift the transmission from a lower gear to a higher gear without reducing the machine speed or engine speed. If the gear to be selected is two (2) or more higher than the present gear, the transmission will automatically shift gears at 2.5 second intervals until the gear selected has been reached.

Down-Shifts Manual Mode The transmission can be shifted from 4th to 1st gear without reducing machine or engine speed. If 1st gear is to be selected from 3rd or 4th gear, the transmission will down shift to 2nd gear for approximately 1.2 seconds and then shift to 1st gear. For smooth operation and operator comfort, reduce engine speed before down shifts.

Down-Shift Button, Manual Mode The down-shift button is used to shift the transmission from 2nd gear to 1st. The transmission will shift back to 2nd gear if (1) the down-shift button is pressed again or (2) if the transmission control lever is moved to NEUTRAL and then to FORWARD or REVERSE.

Automatic Mode Operation To put the transmission in the automatic mode press the top of the Autoshift switch.

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