Product Description
The NI 31728-40K00 Transmission Filter is a hydraulic transmission fluid filter designed for Nissan electric lift trucks. This filter removes contaminants, metal particles, and wear debris from the transmission fluid, protecting critical hydraulic components in drive and steering systems. The pleated synthetic media provides efficient filtration at 10-25 microns nominal rating while maintaining adequate flow under operational load. Regular replacement every 1,500-2,000 operating hours ensures optimal transmission performance, prevents overheating, and extends equipment lifespan. Essential maintenance component for Nissan sit-down and stand-on electric forklifts.
Frequently Asked Questions
Q: What is the NI 31728-40K00 filter and what does it filter?
A: The NI 31728-40K00 is a transmission fluid filter for Nissan electric lift trucks. It removes contaminants, metal particles, and wear debris from the hydraulic transmission fluid used in the drive and steering systems. This OEM filter maintains fluid cleanliness and protects internal hydraulic components.
Q: Which Nissan electric lift truck models use the NI 31728-40K00 filter?
A: The NI 31728-40K00 is designed for Nissan sit-down and stand-on electric forklifts equipped with hydrostatic or hydrodynamic transmission systems. Verify your lift truck model and transmission type match before ordering. We can confirm compatibility with your specific equipment serial number.
Q: What is the filter media material and micron rating of the NI 31728-40K00?
A: The NI 31728-40K00 uses pleated synthetic filter media with a nominal micron rating of 10-25 microns, depending on the specific transmission design. This rating is optimized to remove particulate while maintaining acceptable fluid flow rates through the transmission circuit under load.
Q: How often should the NI 31728-40K00 be replaced?
A: Replace the NI 31728-40K00 every 1,500-2,000 operating hours or annually, whichever comes first. Frequent operation in dusty environments, wet conditions, or with heavy loads may require more frequent replacement. Inspect the filter element during routine maintenance; replace immediately if it appears dark or clogged.
Q: What symptoms indicate that the NI 31728-40K00 filter needs replacement?
A: Warning signs include slow steering response, sluggish lift or lower cycles, overheating transmission fluid, or dark discoloration in the hydraulic fluid. A severely clogged filter reduces flow and causes the transmission to overheat. Replace the filter immediately to prevent transmission damage and loss of equipment functionality.
