Proceed with the following steps if the cab is equipped with a heater.
30. Drain the engine antifreeze.
31. NOTE: On the cab, the heater hose located against the glass is the pressure hose, and the
hose furthest away is the return hose.
32. The pressure fitting is located on the left side of the thermostat housing. Remove the plug.
Use water sealant material around the threads of the fitting to prevent water leaks.
If cab is
equipped with air conditioner option
, u
se the 3/8NPT x 3/8” barb
elbow fitting and screw it
into the port. This is the pressure fitting.
If cab is equipped with heater only option
, use the
3/8NPT x 3/8” barb straight fitting and screw it into the port.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual
