763 C Auxiliary Hydraulics Won't Stay Engaged

[OldNeons]

I tried this in the general repair forum and didn't get it resolved so I'm posting here in Skidsteers. Hope thats ok? 763 C series - I changed a rusted off control arm lever and now my aux hydraulics won't stay engaged? The actuator switch is of course in the right hand control grip. At first the yellow light on "dash" stayed on and it worked for a short bit, but was intermittent. Now the yellow light will only come on for a second when pushed and then goes out. If I actuate lever switch on grip while pushing the button my snow blade will move ever so slightly but then it stops and light goes out. I have double checked the pins/connections on the two plugs that come out of the arm. I had to use some penetrant to get the rusty arm out of the control handle - wondering if some entered the sealed switch in handle and ruined it? Anyone have any other thoughts please? Pin voltages to check? thanks in advance

 

[foton]

if you suspect oil entry into the switch use a ohm meter on the switch , if it is a on/off switch you should read very low ohms thru the switch when it is in the on position (as less than 2 ohms) I would guess.