The oil pump drive transmits rotation to the oil pump of the Partner 350 chainsaw and ensures lubricant is delivered to the chain. Manufacturer: EMAS. Country of origin: Taiwan.
Replace it if the gear or worm teeth are worn down, or the housing is cracked. Sign of wear: the saw does not deliver oil even though the tank is full and the channel is clear.
It is best to do the work on a cooled engine with the ignition off, and to tighten the fasteners without overtightening, so as not to strip the thread in the body.
