Author Topic: BMT250 setter maintenance. (Read 396 times)

jimbarry · « **on:** April 30, 2022, 03:24:08 PM »

Anyone buy new parts for their BMT250 yet? Those little pieces of steel that push the teeth to set in place. Those are consumable items. I've filed them down once already and they are beaten up again. Most wear comes from setting 7/47's or Turbo 7's. Those new bits , take a guess at what WM is charging for those???

CAD$51 each. I'm going to get some sets made up by a local machinist using hardened steel. WM's material is too soft.

Southside · « **Reply #1 on:** April 30, 2022, 03:53:47 PM »

Are they soft by design so the tooth does not take the damage?

terrifictimbersllc · « **Reply #2 on:** April 30, 2022, 05:41:54 PM »

I don’t understand that. Here’s a picture of one of mine, original, that I took out just now, and the other looks just the same, has essentially no wear on it. 6 years of use mostly double hard turbo 7 blades.

What I have found troublesome are the two heavy springs that hold the clamps open, they break, $18 apiece and Ive replaced them each twice after they broke.

jimbarry · « **Reply #3 on:** April 30, 2022, 06:21:05 PM »

@Southside Made as a consumable item nowadays, be my guess.

@terrifictimberllc I guess it depends more on the number of blades during the time span. The springs are holding well on this unit, but I have had to put a washer inside, behind each spring in order to get the dial to read correctly. That was a hack from a while back I seen @YellowHammer do.

tacks Y · « **Reply #4 on:** April 30, 2022, 08:49:58 PM »

At $51 they are proud of them. Is that 3/8 stock or some metric gismoe?

ljohnsaw · « **Reply #5 on:** May 01, 2022, 02:02:19 AM »

If they are a standard inch size (1/4, 3/8, 1/2), you could use carbide cutter bits from a lathe. You'd never wear those out! How long are they?

ladylake · « **Reply #6 on:** May 01, 2022, 04:27:18 AM »

Looks like something is wrong with your setter, the blades shouldn't hit those push blocks when it advances. Steve

YellowHammer · « **Reply #7 on:** May 01, 2022, 07:22:18 AM »

I agree, I see scratch marks. I had the same issue with mine, the setter should be adjusted so the teeth are completely clear of the setting blocks when the blades moves. I had to do quite a bit of alignment fiddling with mine, including moving the alignment blocks in and out, because the band would have an "S" curve and scrub when beginning to advance, and I had to fiddle with it so that the band was perfectly straight. It also had a little bit of twist in it and the taller teeth of the Turbos made the scrub more problematic.

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