Mk2 1928 safetrak

[karl]

Has anybody got any ideas on why one leg will not extend on 1928 mk2 safetrak , one is working perfectly , the other isn't working at all . This happened suddenly , working one day and not the next .

[Jase hutch]

Hi Karl , could easily be a switch.

Try manually operating the leg valve , situated under the alternator by pushing in either end of the valve with a small screwdriver to see if the leg will move. It's the centre core you need to push in.

If this works then check for voltage when the switch is operated at the herschmann plug on the leg valve..

The switches can fail due to water ingress so that would be the most likely..

[karl]

Thanks jase   that's a good start 

[Jase hutch]

Hi Karl, just another thought , if the leg is fully in and won’t extend , even when you operate the valve manually , has the transport bracket gone down the inside of the track motor casing instead of sitting on top of it , therefore causing the track to jam ?

This can be  an issue if the wear pads on the legs are in need of adjustment.

If this is the case then you will have to try to lever out the track whilst operating the valve at the same time to free it off and then the wear pads will need adjusting.

There is a ‘how to video ‘ on the GreenMech website to explain how to adjust the wear pads on the legs.

jase..

[karl]

Thanks  again jase

It turned out one of the electrical connections had come off the back of the switch  that controls the leg...but the rear pads do need resetting as there is some play and the front of the machine is sitting low