Question about Hitachi CC12Y 12" Portable Cutoff Saw

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How to remove gear from arbor shaft on cut off saw?

I need to replace the arbor shaft bearing on my cut off saw. There is a gear on the shaft with a feather key but no set screw and the gear will not come off the shaft. I've smacked it pretty good with a hammer with no movement and I'm concerned if I hit it too much I will deform the other end of the shaft and it won't fit back in it's bearing.

Any suggestions on removing this gear?

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The fact that there is no screw suggests its a push fit. Without knowing the machine, I am taking an educated guess, but suggest you will need a hydraulic press.

Posted on Mar 04, 2009

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1 Answer

Need to replace outboard ball bear on rotor assembly.


Don't heat it! Most tools don't use heat applied bearings and the small shaft will warp if you heat it. Use an arbor press if you have to.

Oct 05, 2015 | Saws

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I have 2 DW715 miter saws given to me, with the blades off one sounds wicked, you can spin it forward by hand but stops/locks up trying to spin in reverse. Sounds like a belt or bearing. The other one...


The first one sounds like an armature bearing - pretty easy fix if you have access to a press or even a bearing / gear puller. Make sure the saw is unplugged, remove the end cap on the motor and the 2 carbon brushes. remove the 4 screws holding the motor housing to the saw and pull it off. Then, pull the armature straight out - replace the bad bearing, and reverse process.
The second one sounds like it is missing the arbor bushing #152636-00 or it has a bad blade bolt #145344-01.

Nov 10, 2014 | Saws

1 Answer

Why is my tile saw making different noises?


Sounds like you have bearings going/gone bad. If it's a direct drive model, check the bearings in the motor and on the arbor. If it's a belt driven model check the bearings on either end of the arbor shaft. As bearings go bad, someone using the saw regularly will notice a different tone in the tool. If you are getting vibrations that bad, the bearings are already loosing balls or the race is tore up and all the balls are on one side and can't doing their job correctly.

Mar 10, 2012 | Ridgid Saws

1 Answer

Blade shaft slipping


It could be a number of issues. These saws have a built in vari-torque clutch used to prevent kickbacks. Basically, when the blade binds while cutting, the arbor spins but the blade won't (prevents kick-back). It works by not over tightening the blade washer (this is the slip clutch), if you over tighten, the blade washer can't prevent kick-backs because it has no room to slip, if you under tighten, the arbor spins, but the blade won't. I'd try to tighten the blade washer 1/8 turn and see what that does. If your actual arbor shaft is not spinning, you could have a gear issue. If you hear the motor running and the arbor slips (not the slip clutch) sounds like there might be a gear issue,If the rotor is spinning (the part inside the stator-i.e. the electric motor section) but it is not transfering that movement to the arbor, it has to be a gear issue.

Jun 07, 2010 | Skil 7 1/4" Magnesium "Mag 77" Wormdrive...

1 Answer

I have an old craftsman table saw. i believe the "brake" or gears a shot. the saw runs very loud and shakes. now no matter how much i tighten the blade the nut loosens after one cut.


With the saw unplugged and the blade tightened, using your fingers try to wiggle the blade side to side and lift it up and down. Other than a little flexing of the blade, there should be no movement. If you have much movement you have a problem and the saw is dangerous. If this is a belt-driven saw, then you may be able to replace the bearings on the arbor (the shaft the saw mounts to) or you may have to replace the whole arbor. If this is a direct-drive saw (the saw mounts directly on the motor shaft) then the bearings that have failed are in the motor and you are less likely to be able find and install replacement bearings. If you find the model number of your saw, you might be able to find drawings and replacement parts on this site:
http://www.searspartsdirect.com/
Thanks for using FixYa. Let me know if I can help more. Good luck. Al K

Mar 14, 2010 | Craftsman 10" Table Saw

1 Answer

Manual for #103.0205 circ. saw


Earlier comment 103.0205 Table Saws does not need lubrication is simply wrong.

The103.0202, 103.0203, 103.0305 Craftsman Companion Table Saws main Arbor axle DOES have to lubricated or else the axle bearing will quickly loosen side-to-side or vertically and fail to provide accurate saw cuts.

FWIW, Sears no longer sells Arbor Axle replacement parts... The Table Saw Arbor axle and Bearing Housing cannot use sealed bearings unless the saw case is re-milled and extensively modified. There are 2 Oil Hole Plugs (part# 475-32) that need to be opened and oil applied so the Arbor axle shaft does not get scored or worn.

I use 30wt motor oil to relube the Arbor Axle Shaft depending on amount of use, temperature, and axle rotation stiffness.

Remember, the higher the RPM speed of the table saw motor and/or the longer the use, the more frequently you may need to relube the Arbor Axle Bearing!

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Nov 19, 2009 | Sears Saws

2 Answers

Blade stops going once it hits the metal to be cut.


inside the motor/arbor section of the saw, there is a helical gear and worm drive on the motor. the front of the motor is supported by a bearing in the aluminum arbor section. sounds like most of the bearing balls are disintegrated and the worm disengages when a load is put on it but spins when there is no load. I would check and replace the front bearing.

Oct 24, 2009 | Ryobi Saws

1 Answer

How to replace main shaft bearing


Almost all of the Skil table saws are the same setup when it comes to the motor and drive assembly. Remove your blade before servicing. You will need an arbor press, bearing seperator/puller and drill/driver bits (torx or philip depending on model) plus some adjustable ring pliers to accomplish this repair.

First thing you have to do is remove the motor from the saw. Place the saw on its wide side and adjust the motor with the height adjustment wheel so as to access the hex screws holding the motor to the rack.

Next, before removing the motor you need to remove the motor cord from the switch. Flip the table saw upside down flat on its table. Remove the switch cover and disconnect the black and white wire from the switch marking their position or noting the other wires from the cords position and the relation to the motor wires. Now you can undo the hex screws to release the motor.

Once your motor is released you can remove the spindle shaft by removing the 3 screws from the bearing housing. You can pry the assembly off with a couple of screwdrivers or by using a soft hammer and tapping the edges to remove.

Once removed you will have to remove the gear before you can get to the bearing. Use a bearing seperator/puller to pull the gear off the shaft. Once the gear is off you need to remove the woodruff key before removing the bearing. After the woodruff key is out you can remove the c-clip that holds the bearing to the shaft. Now you can use an arbor press to press the shaft out of the bearing.

Replace your bearing and put it back together. Any questions please post back.

Oct 12, 2009 | Skil Saws

2 Answers

How to change the saw blade


Adjustments
LARGEHEXWRENCH
TO REPLACeTHE BLADE
See Figures 43 - 45.
 Unplug the saw.
 Lower the saw blade, raise the blade guard, and remove the throat plate.
 Make sure the bevel locking lever is securely pushed to the left. Raise the saw blade to its full height by turning the height/bevel adjusting handwheel clockwise.
 Using the smaller hex wrench, insert the flat open end into the flats on the arbor shaft.
 Insert the closed end of the larger hex wrench over the hex nut. Holding both wrenches firmly, pull the larger wrench forward to the front of the machine. Make sure the blade nut is securely tightened. Do not overtighten.
Check all clearances for free blade rotation. See To Set the Scale to the Blade. In cutting operations, the scale will be set to the side of the blade where the cut will be measured and made.
To replace the blade with an accessory blade, follow the instructions provided with the accessory.
To install a standard blade:
 Place the new blade on the arbor shaft (the teeth must point down toward the front of the saw to work properly).
 Place the blade washer and the blade nut over the blade arbor. Be sure the dome side of the blade washer faces out from the blade and that all items are snug against the arbor housing. Tighten securely.
SMALLHEXWRENCH
Fig. 43
Blade
Bladewasher
arbor shaft
Bladenut
Fig. 44
BLADEGUARD
THROATPLATE
spreader
BLADE
Fig. 4535
ADJUSTMENTS
 Rotate the blade by hand to make sure it turns freely.
 Lower the saw blade and reinstall the throat plate.
NOTE: Securely tighten throat plate screws. Do not allow the throat plate to bow up above the table surface.

Sep 18, 2009 | Saws

1 Answer

How do you remove the arbor assembly on a craftsman 10" table saw


go to sears service center and get a new arbor, and ask them to show you the motor and arbor assembly drawing. it should show how the arbor is attached to the shaft.
you can pull the arbor off with a pulley. you can get that from auto parts store.

Mar 31, 2009 | Craftsman 10" Table Saw

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