2005 Kawasaki KAF620 Mule 3010 Trans 4x4 Service Manual, Page 200Get this manual
10-20 TRANSMISSION HiLow Gears and Shift Mechanism
HiLow Shift Cable Installation HiLow Shift Cable Inspection
See Transmission and HiLow Shift Cables Installationat both ends, With the cable disconnectedcable housingshould move freely within the the cable If the cable movement is not free, if the cable is frayed, or if the housing is kinked, replace the cable