I'm looking at a generic (and brief) PM procedure for traction units (you know, the way you do).

Does anyone consider it worthwhile to measure the pull (tension) on the traction cable?
Do these things have a built-in slip-clutch (or over-tension) cut-out device, as a rule? I can't remember, but perhaps they (or some of them) do.
And what sort of (range) value are we talking about? I'm hoping that a simple 50 lb (22 kg) "fisherman's" spring balance will do the job!
By the way, I reckon that the patient's stop switch is the most important item to check!
