Our FR5 collar samples have a cloudy contact band. How should we compare pads without ignoring grip and release?
Soft pads leave a cloudy band on our collar
SamBaker0507 · 29 Jul 2025, 03:47 UTC
13 replies
Replying to SamBaker0507
What appearance requirement applies to the visible cylindrical surface? Agree that comparison first, including the viewing conditions and the condition of the samples before handling.
5pointsReplying to OscarBennett0706
We have an approved appearance sample. Supplier used a phone torch instead of the specified inspection light.
19pointsReplying to SamBaker0507
Use the specified method for acceptance. The torch may help locate a mark, but it should not silently replace the viewing conditions you agreed for judging the finish.
22pointsReplying to SamBaker0507
Does the band wipe off under the permitted cleaning method? I'm asking what it is, not suggesting you add an unpriced cleaning job to every collar.
18pointsReplying to AaronCarter0958
Not checked yet. I'll ask quality to compare before and after permitted cleaning.
4pointsReplying to SamBaker0507
Have them preserve the before-cleaning observation as well. If cleaning becomes necessary after handling, purchasing needs that task and its consumables included in the comparison.
15pointsReplying to SamBaker0507
Ask for untouched collars from the same supply beside the handled ones. We have had enough arguments about lines on shiny parts to know that a nice label saying test sample does not tell you when the line appeared.
8pointsReplying to SamBaker0507
Include the pad replacement interval as an open question too. A clean first sample does not tell you how often maintenance will have to change the contacts.
21pointsReplying to HarishAbbott0054
I'd leave that interval open until they have wear evidence, Harish. Guessing an interval now could make either pad look cheaper just by choosing a friendly number.
22pointsReplying to AaronCarter0958
Agreed, no invented interval. Supplier will include hold, transfer and release into our nest in the trial.
3pointsReplying to SamBaker0507
Which nest revision, Sam? Make sure they aren't demonstrating the earlier roomy one if yours has changed.
1pointsReplying to IsabelBennett0735
Revision B, matching our current fixture drawing. Both pad proposals will use it.
17pointsReplying to AaronCarter0958
That is why I called the interval an open question, Aaron. We can compare the purchase prices now and keep the maintenance estimate provisional rather than filling it with a guess.
6pointsDiscussion closed
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