ASR-33 Questions

[Dwight K. Elvey]

>From: "O. Sharp" <ohh at drizzle.com>
---snip---
>>
>Thanks for the excellent suggestions regarding likely mechanical causes 
>for the chatter on Local. I'll be walking through the machine with them 
>tomorrow, and hopefully they'll solve the current problem. Then I can look 
>to see if there are more exotic problems.  :)
>

Hi
 You can try holding the armature of the selector coil with
a small screw driver. This will tell you if it is a mechanical
or electrical problem. If held, and you start the power,
all should lock-up. If it doesn't, it is a mechanical
issue. If it does, you have a break in the electrical
circuit someplace.
 Be careful not to damage things near the coil. An
orange stick would be safer than a regular screw driver
but I've always just used a small screw driver.
 You can see the selector clutch on the left side of the machine.
This is the clutch that starts everything. If you are
uncomfortable with powering on with your screw driver in there,
you can just spin things manually. Just turn the fan on
the motor. As each clutch releases, squeeze it to completely
release it or it will drag. When the motor is running there
is enough inertia to completely release it but when running
by hand, it needs to be done by the additional squeeze.
Dwight