You should be able to still take a scewdriver or channel locks
and twist the actual valve even if the black knob is gone. If
memory serves me right, clockwise to make the doors open faster.
Also, one thing we try to do on this list is keep the emails going on
the list, that's why you'll see I keep reposting to the list. It keeps
everyone up to date, and no one misses out on potentially useful knowledge.
Thanks,
Seth
#1544
*********** REPLY SEPARATOR ***********
On 4/15/2003 at 3:37 PM JT wrote:
>It looks like the regulator is the problem. The black
>knob on the end of it was broken off.
>
>
>--- Seth <sbunin@comcast.net> wrote:
>> A couple of things to check then:
>>
>> 1) make sure your regulator is not turned all the
>> way down.
>> This black knob adjusts how fast or slow your
>> doors will open
>> 2) Sometimes the solenoids get corrosion in the
>> seats (although it
>> is typically the dump solenoids, not the apply).
>> You can check this
>> by pulling your solenoids apart. First drain your
>> air tank, you don't want
>> to have presssure in there when you take the
>> solenoid apart or it will shoot
>> out of there. Next step is to take the coil off
>> by taking the top nut off.
>> then using a flat head screwdriver, very gently
>> unscrew the solenoid sleeve.
>> Be very careful when doing this as there is a
>> little armature which is spring
>> loaded inside there. Make sure there is no
>> corrosion blocking the seat. Since
>> you're worried about the apply side, an easy
>> check is to have someone put a
>> bit of air in the tank. You should feel the air
>> coming out of the seat when you do
>> that. Also, have that person manually raise and
>> lower the door, you should feel
>> air coming out of the other hole in the seat.
>> 3) Since you've already got the coil off, now is a
>> good time to make sure it is
>> getting juice. This is an easy check. Take a
>> nail, or paperclip or something
>> metal and hold it inside the ring. Then hit the
>> switch. If there is juice to it,
>> you'll feel a slight tug on the metal. Up switch
>> for the top coil, and down switch
>> for the bottom coil.
>>
>> Oh, one more thing, while you're in there, it's a
>> good time to make sure your fogger
>> is full. This keeps the rams lubricated and keeps
>> them from rusting. Aluminum rusts
>> white, so if you see white pellets in your
>> solenoids, make sure to refill your fogger, and
>> work the doors a bit to get it out of the system,
>> otherwise you'll just have more problems
>> down the road. Some have said to use anti-freeze as
>> the lubricant, but I've found that
>> power steering fluid works much better.
>>
>> Hope this gives you a place to start.
>>
>> Seth
>> #1544
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