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Craftsman saw motor out of alingment

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Forum topic by billmc63 posted 12-28-2018 12:16 AM 542 views 0 times favorited 17 replies Add to Favorites Watch
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billmc63

11 posts in 262 days


12-28-2018 12:16 AM

Greetings everyone. I purchased Craftsman tablesaw model 113.2980312 and the motor seems out of square with the arbor pulley. The belt seems to travel somewhat canted to the right as it leaves the motor pulley. I don’t see any adjustment for this problem in the manual and a look around the motor mount doesn’t revel anything obvious for solving this issue. Any advise would be welcome .Thanks in advance.


17 replies so far

View jamsomito's profile

jamsomito

433 posts in 903 days


#1 posted 12-28-2018 12:32 AM

If it’s minor and not affecting your blade alignment the only issue is going to be a bit quicker belt wear, and I wouldnt worry about it. My contractor saw motor mount has elongated slots but it still doesn’t move far enough to fully align the two pulleys and it’s slightly skewed at both ends. Runs fine.

View ChefHDAN's profile

ChefHDAN

1440 posts in 3326 days


#2 posted 12-28-2018 03:20 AM

Can you adjust the pulley on the shaft?

-- I've decided 1 mistake is really 2 opportunities to learn.. learn how to fix it... and learn how to not repeat it

View Eric's profile

Eric

79 posts in 350 days


#3 posted 12-28-2018 03:31 AM

Agreed, check the pulley alignment.

-- Eric, Upstate South Carolina

View EEngineer's profile

EEngineer

1120 posts in 4090 days


#4 posted 12-28-2018 01:53 PM

The motor mount for that saw has slotted holes to allow the adjustment of motor position to align this…

Manual on OWWM site here:

If the problem is simply lining up the pulleys with each other, loosen the motor mount bolts and slide the motor over to adjust this. If the problem is that the motor pulley isn’t quite vertically aligned with the arbor pulley, there was enough slop in the mounting holes on my 113 saw to rotate the motor slightly to line them up.

I disagree with jamsonmito above – even a minor misalignment may lead to increased side-loading on the motor and/or arbor bearings which may lead to increased bearing wear. It should be easy to fix.

-- "Find out what you cannot do and then go do it!"

View billmc63's profile

billmc63

11 posts in 262 days


#5 posted 12-28-2018 06:27 PM



Can you adjust the pulley on the shaft?

- ChefHDAN


I’ts not a matter of the pulley being to far out or to far in on the motor shaft. It’s the motor not being squaree to the saw body.

View billmc63's profile

billmc63

11 posts in 262 days


#6 posted 12-28-2018 06:28 PM



The motor mount for that saw has slotted holes to allow the adjustment of motor position to align this…

Manual on OWWM site here:

If the problem is simply lining up the pulleys with each other, loosen the motor mount bolts and slide the motor over to adjust this. If the problem is that the motor pulley isn t quite vertically aligned with the arbor pulley, there was enough slop in the mounting holes on my 113 saw to rotate the motor slightly to line them up.

I disagree with jamsonmito above – even a minor misalignment may lead to increased side-loading on the motor and/or arbor bearings which may lead to increased bearing wear. It should be easy to fix.

- EEngineer


View billmc63's profile

billmc63

11 posts in 262 days


#7 posted 12-28-2018 06:29 PM


The motor mount for that saw has slotted holes to allow the adjustment of motor position to align this…

Manual on OWWM site here:

If the problem is simply lining up the pulleys with each other, loosen the motor mount bolts and slide the motor over to adjust this. If the problem is that the motor pulley isn t quite vertically aligned with the arbor pulley, there was enough slop in the mounting holes on my 113 saw to rotate the motor slightly to line them up.

I disagree with jamsonmito above – even a minor misalignment may lead to increased side-loading on the motor and/or arbor bearings which may lead to increased bearing wear. It should be easy to fix.

- EEngineer

- billmc63


View billmc63's profile

billmc63

11 posts in 262 days


#8 posted 12-28-2018 06:33 PM



The motor mount for that saw has slotted holes to allow the adjustment of motor position to align this…

Manual on OWWM site here:

If the problem is simply lining up the pulleys with each other, loosen the motor mount bolts and slide the motor over to adjust this. If the problem is that the motor pulley isn t quite vertically aligned with the arbor pulley, there was enough slop in the mounting holes on my 113 saw to rotate the motor slightly to line them up.

I disagree with jamsonmito above – even a minor misalignment may lead to increased side-loading on the motor and/or arbor bearings which may lead to increased bearing wear. It should be easy to fix.

- EEngineer


Do you mean the 2 rods that actually attach the motor mount to the saw carcass?

View bandit571's profile

bandit571

23574 posts in 3160 days


#9 posted 12-28-2018 07:35 PM

No, it is the 4 bolts that attach the motor to the plate.

Loosen them just a hair, then align the pulleys up….like a dowel resting in the grooves in the pulleys. Tighten up one bolt, recheck. do the one diagonally from the first one, recheck…the repeat for the other two.

The two rods are only to attach the mount to the saw….you can slide them in or out, to adjust the tension on the belt.

Clear as mud?

-- A Planer? I'M the planer, this is what I use

View billmc63's profile

billmc63

11 posts in 262 days


#10 posted 12-28-2018 11:07 PM



No, it is the 4 bolts that attach the motor to the plate.

Loosen them just a hair, then align the pulleys up….like a dowel resting in the grooves in the pulleys. Tighten up one bolt, recheck. do the one diagonally from the first one, recheck…the repeat for the other two.

The two rods are only to attach the mount to the saw….you can slide them in or out, to adjust the tension on the belt.

Clear as mud?

- bandit571

The right side of the motor (pulley end) is closer to the saw carcass than the left end of the motor. This makes the pulley run at a cant to the arbor pulley. The motor is not perpendicular to the saw.

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bandit571

23574 posts in 3160 days


#11 posted 12-29-2018 12:14 AM

Plate has been bent.

-- A Planer? I'M the planer, this is what I use

View OldCharlie's profile

OldCharlie

13 posts in 259 days


#12 posted 12-31-2018 02:40 AM

It’s possible one of the two rods that slide in and out to adjust the belt tension is locked in too far causing the motor to cant as you have described. I have actually seen that on some of these old saws and it doesn’t seem to affect performance. Like you I would probably fuss with it until I got it straight, just because…

-- Oldcharlie

View MrUnix's profile

MrUnix

7468 posts in 2676 days


#13 posted 12-31-2018 04:05 AM

The right side of the motor (pulley end) is closer to the saw carcass than the left end of the motor. This makes the pulley run at a cant to the arbor pulley. The motor is not perpendicular to the saw.
- billmc63

If you can’t adjust the mounting plate for the error, then a couple of washers under the motor mounts should fix it.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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billmc63

11 posts in 262 days


#14 posted 01-01-2019 02:21 AM

The nightmare of the Craftsman table saw continues…... I seem to have run out of threads on the tilt adjustment rod about 4 turns short of 45 degrees. The set collar is backed all the way off and it still falls short of hitting the mark. I’m at a loss. Thanks in advance.

View OldCharlie's profile

OldCharlie

13 posts in 259 days


#15 posted 01-02-2019 05:13 AM

I have seen a number of these saws, even had an older model myself at on time, and I have never seen one with two belts. I suppose someone may have changed the pulleys at some time and the larger pulley on the arbor shaft may be hitting the frame when you try to tilt it all the way. Just a thought…..

-- Oldcharlie

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