Thermostat Replacement 4911

[rees]

I suspect that my thermostat is not working and want to replace it.
I have taken off the flared pipe that runs from the top of the radiator. The thermostat is visible and spins in the metal tube but I cannot get it out. How do I do this?

On a separate matter I am confused about the model numbers for Zetors. Mine is a 1979 4911 - is this a UR1/2 or something else?

Many thanks

 

[alan]

There is a wire clip which holds the thermostat in the housing.
The 4911 is one of the UR1 series

 

[rees]

Alan,

Many thanks for the information. I'll hopefully be able to get the job done over the weekend.

Cheers

 

[rees]

I have had another look at this but am still confused!

Sorry if i am being thick!

The thermostat seems to sit behind a flange but it obviously must come out in the direction of the front of the tractor.
Is what looks like a flange in fact the clip? If so what is the best way to get it out?

Many thanks.