Removing Motor Sheaves

[Duckman]

A couple of questions on removing and reassembling the motor sheaves.
1. Does it make any difference which way the spring goes on? Does one end have a larger diameter? If so which end goes towards the motor?
2. What am I looking for on the sheaves that would indicate the sheaves need replacement?
3. When they mesh together they are really hard to get apart. Is that normal?
4. Is there a trick to removing the fan sheave? I removed the allen screw but it is on there tight? I do not want to bend or break anything.

I appreciate any response. I am working to restore an 81 headstock I got at an estate sale.

[JPG]

A couple of questions on removing and reassembling the motor sheaves.
1. Does it make any difference which way the spring goes on? Does one end have a larger diameter? If so which end goes towards the motor?NO difference
2. What am I looking for on the sheaves that would indicate the sheaves need replacement? Wear
3. When they mesh together they are really hard to get apart. Is that normal?That spring say Yep that's normal
4. Is there a trick to removing the fan sheave? I removed the allen screw but it is on there tight? I do not want to bend or break anything. wedge(gently but sufficently) between sheave and motor bell near shaft Key removed???

I appreciate any response. I am working to restore an 81 headstock I got at an estate sale.

If the sheave is hard to move when closed with NO spring, It may need more oil or cleaner shaft. It really really will move freely(gravity when vertical)

[Duckman]

I have done the wedge trick on another machine. I thought there might be a different way. The floating sheave moves pretty well. I cleaned the motor shaft and oiled it with 3 in one. Thanks for the response. DUCKMAN

[Real1shepperd]

3 in 1 is for door hinges and the like IMHO. No place for that oil and rotating machinery. Even their SAE 20Wt for 1/4HP or larger oil is a better choice.

Kevin

[JPG]

3 in 1 is for door hinges and the like IMHO. No place for that oil and rotating machinery. Even their SAE 20Wt for 1/4HP or larger oil is a better choice.

Kevin

I do not think the machinery will mind the odor.

I also consider it appropriate since in is simply stinky #10.

[Real1shepperd]

3 in 1 is for door hinges and the like IMHO. No place for that oil and rotating machinery. Even their SAE 20Wt for 1/4HP or larger oil is a better choice.

Kevin

I do not think the machinery will mind the odor.

I also consider it appropriate since in is simply stinky #10.

10Wt would be pretty light and I doubt if that particular formulation is designed for any machinery rotating at speed. I do know that their 1/4HP and larger formulation is, and have used it in electric motors for decades. Who said anything about odor?

Kevin

[JPG]

# 10 is what SS has recommended since they began in 1947.

Recent folks at ss have been known to say something else.

Mostly we are dealing with sliding parts(movable sheaves).

[Real1shepperd]

Oils have come a LONG way fwd since 1947, to say the least. I will always take advantage of a newer formulation if it's specified for the task.

Kevin