question on cable pull tank valve drains
We are getting ready to go pick up our new GD Imagine TT next week. Our current and previous TT's had / have exposed valves where you just pull a handle, pretty simple. This new TT has the valve...
Forum Discussion
riven1950 wrote:
W
I have never used a cable pull. I can see they would open when you pull the cable, but how do they close? I'm sure the person doing the walkthru will explain but thought more info is better.
Thanks
You're probably picturing a completely straight cable pulling the valve open, but that is not the case. It's not the cable alone that pushes the valve shut. It's a combination of the cable and the flexible sheath. The sheath is stiff enough that when you push on the cable it slides inside the sheath rather than just flexing to the side. Look at a 10 speed bike, there are loops in the shift cable yet it is able to push and pull the cable to change gears. Come to think of it, most front wheel drive cars use a cable on the automatic transmission gear selector too. But if you pulled the outer sheath off then the cable would just flop around and nothing would happen.
