Today's Job
Rebuild the motor/fluid drive.
Bob Salem and I were debating over New Years , we noticed how when you open the fluid drive from its hermetic seal that you ALWAYS need to top up the fluid drive oil ! Sometimes the plug is so tight you have to block the F/D in aVise, and use a LONG handled wrench just to get it open.
Where does the fluid go? Does it go?
Well today I measured!
The first picture shows just how much I got out of the FD = 6.0 ozs.
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And we now know how much the original charge should be. Thanks to ebay I found a bottle of old used FD/FLUID with the quantity. Most SQ doctrine does not tell you how much the charge should be. It should be 7 1/2 ozs. !
You'll see it was down 1 1/2 ozs. ! Not a speck on the outside, the F/D was bone dry. It must burn up inside and turn to carbon because the oil is cloudy. That's my guess.
I topped it off with Zoom spout oil, its very close in viscosity, it's a tad thicker but then the oil in the FD is 60 years old and it would have broken down some so Zoom spout is a good match.
Next motor contacts cleaned, motor bearings lubed - they needed it! F/D bearing lubed for smooth sliding operation. Solenoid cleaned of external grease, it snaps real nice & smooth now. No chattering.
Now the whole shebang is ready to put back together.
