Grove Published 11-10-2014, Control # 524-00 7-33
RT880E SERVICE MANUAL POWER TRAIN
ENGINE BLOCK HEATER
The pre-heater is an 120 volt (240 volt, optional) immersion
type heater. The immersion heater is installed in the engine
block to preheat the coolant water. The immersion heater is
provided with a short power cord equipped with a three
prong ground plug. The heater is 1500 watts.