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3.3 Emergency pump operation
3.3 Emergency pump operation
If the machine does not work due to engine or main pump failure, use the emergency pump to lower the platform. To operate the boom and the fly jib by the emergency pump, operate each boom or fly jib control switch with holding the emergency pump switch in its ON position.
Advice: It is not necessary to hold the dead-man switch in its ON position when operating the boom and the fly jib by the emergency pump.
ON
Emergency pump switch
30 seconds Operate Rest 30 seconds
Emergency pump operation cycle diagram
Rest 30 seconds Operate 30 seconds
Caution: * Operate the emergency pump every other 30 seconds. Continuous operation in excess of 30 seconds may cause damage to the emergency pump.
* Do not impose heavy load to the emergency pump, e.g. by attempting travel operation.
Advice: In the event that the emergency stop switch has been pressed at the upper control with no operator on the platform, the boom can be lowered by operating the emergency pump switch and the boom control switches simultaneously from the lower control.
