Subaru1-3-2-4 Premium Member join:2001-05-31 Greenwich, CT |
Subaru to Tex
Premium Member
2014-Aug-18 8:46 pm
to Tex
Re: Best stuff to use to help free up a dragging shaft fan?So what info do you have on a B48 frame motor? I never had any luck. |
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Subaru |
Subaru
Premium Member
2014-Aug-19 9:29 am
That 3L220 belt is not right I guess I should of taken the measurement from the outside diameter. The motor pulley shipped from another location the belt I can pick up local from the grainger store. Lucky enough the belt is small enough that I can use it for something. |
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to alphapointe
Counter clockwise. The fan is a squirrel cage. Air is slung from the blades forcing the air outwards thus sucking new air from below. |
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Subaru1-3-2-4 Premium Member join:2001-05-31 Greenwich, CT |
Subaru
Premium Member
2014-Aug-19 1:24 pm
So I went to the local grainger store and the guy cut the belt and started to measure and at first he was like it's a 4L belt but then he went back to saying it was a 3L and so he did not know the length so he ended up ordering to belts (they are out of stock)
He is stuck between a 3L470 or a 3L480 but should be here tomorrow by 8 am |
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Subaru |
Subaru
Premium Member
2014-Aug-19 9:53 pm
Dumb question but seeing as the guy was unsure of the belt size I'm really paying for two belts or I guess one is to keep in stock? I ended up finding the 90 degree connection for the motor and I have 14 awg for it |
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Subaru |
Subaru
Premium Member
2014-Aug-20 10:17 am
Ended up going with the 3L70 belt when I picked up. |
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TexDave's not here Premium Member join:2012-10-20 |
Tex to Subaru
Premium Member
2014-Aug-20 6:00 pm
to Subaru
You need a "4L" or an equivalent "A" belt.
Just sayin'...
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to Subaru
i can't believe how difficult this is,
go to pepboys or any place that sells belts and just match, i mean how hard is that?
i had a similar fan, entire belt minus 2 inches was left, took it pepboys 30 seconds later i walked out with a kevlar belt rated for 20 years, i don't understand why this was that big of a deal |
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Subaru1-3-2-4 Premium Member join:2001-05-31 Greenwich, CT |
Subaru
Premium Member
2014-Aug-20 6:14 pm
said by LittleBill:i can't believe how difficult this is,
go to pepboys or any place that sells belts and just match, i mean how hard is that?
i had a similar fan, entire belt minus 2 inches was left, took it pepboys 30 seconds later i walked out with a kevlar belt rated for 20 years, i don't understand why this was that big of a deal You are a little late I tried 3 places, Auto Zone and Advance auto and a local lawn care place |
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you need to go to a place that stocks belts, pepboys if you have one stocks hundreds
car places generally don't stock them, not sure why pepboys does
napa might have them too |
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TexDave's not here Premium Member join:2012-10-20 1 edit
4 recommendations |
to LittleBill
The way I understand the situation is he has the old belt, but we don't know if that belt was the right belt in the first place. Even if it was the right belt, it could be old and worn out making it impossible to measure to determine if it was a "4L", an "A" or a "3L" belt.
He insist it's a 3L belt, but looking at the sheaves on the equipment, I'm almost 100% sure it takes a "4L" or equivalent "A" belt. Then, looking at the new sheave and how the 3L belt fits in the new sheave, I am 100% sure it takes a "4L" or equivalent "A" belt. The belt should not bottom out in the sheave like the illustration on the right that I posted. His 3L belt is bottoming out. Not to mention, I've change hundreds of belts on belt drive centrifugal exhaust fans over the years, so I'm very familiar with them and their belt requirements. |
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i agree its the wrong belt, if the photo shows the new belt on the pulley
that said if he had the pulley in hand, all he needed was a piece of string to get the length |
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Subaru1-3-2-4 Premium Member join:2001-05-31 Greenwich, CT |
to LittleBill
Oh Napa tried them too.. The closest pep boys is over 26 miles away |
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Subaru |
Subaru to Tex
Premium Member
2014-Aug-20 9:53 pm
to Tex
The pulley can use a few belts I put the belt on that the guy measured and its still too much slack with the 3L470 I ended up dropping down to a 44" belt I can move the motor closer but not away since it's at the max |
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neonhomerDearborn 5-2750 Premium Member join:2004-01-27 Edgewater, FL |
to Subaru
I agree with Tex . That sheave is a a 4L or A/AX type sheave. When you ordered them, they should have specified what kind of belts to use. I may be a bit of a prude, but I try to always use Browning sheaves and belts. More OEM fan manufacturers (Carnes, Cook, Trane, Carrier, etc etc) use Browning belt drives. There is actually a formula you can use to figure out the belt length. I don't remember it off the top of my head, but you need the measurement between the shafts, and sheave diameters. My opinion, I would use a Browning AX belt. AX34 (36") or AX 36 (38"). They might make an AX35, but Grainger doesn't list it. When you get this all together, make sure you're not over-amping the motor. An RPM check of the fan wouldn't hurt either. |
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TexDave's not here Premium Member join:2012-10-20 |
Tex to Subaru
Premium Member
2014-Aug-20 10:39 pm
to Subaru
said by Subaru:The pulley can use a few belts... Can you post the link to that pulley so I can see for myself that it can use a few belts? |
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Subaru1-3-2-4 Premium Member join:2001-05-31 Greenwich, CT 1 edit |
Subaru
Premium Member
2014-Aug-21 8:03 am
It keeps bringing up the mobile site on my phone so here are screen shots from the phone Btw the motor is only pulling 1.22 A |
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