Product Description
Filter, Hydraulic
Frequently Asked Questions
Q: What does the AC 4947978 hydraulic filter do?
A: The AC 4947978 is a hydraulic filter for Allis Chalmers electric lift trucks. It removes contaminants from hydraulic fluid to protect pump, valve, and actuator components from wear and damage.
Q: How often should the AC 4947978 be replaced?
A: Hydraulic filters typically require replacement every 500 to 1000 operating hours, or annually, whichever comes first. Replace sooner if pressure drops or if the truck shows sluggish or jerky lift motion.
Q: What are the consequences of not replacing the AC 4947978?
A: A clogged filter reduces hydraulic flow, causing slower lift speed, increased strain on the pump, and potential component failure. Dirty hydraulic fluid can also lead to valve stiction and actuator drift.
Q: What micron rating does the AC 4947978 have?
A: Contact our parts team with your equipment model for the exact micron rating. Standard hydraulic filters for lift trucks typically range from 10 to 25 microns absolute.