Owner’s manual
What are the common table saw mistakes?
The most common table saw mistakes are skipping basic safety steps and using poor cutting technique, which increases kickback risk and injury risk. For the Craftsman 351221140 table saw, we recommend following the safety rules in the owner's manual every time you set up, power on, and make a cut.
- Not wearing proper PPE (ANSI Z87.1 safety goggles; hearing protection; dust mask or respirator)
- Operating without guards in place whenever possible
- Cutting in a damp area or exposing the saw to rain (this saw is intended for indoor, dry locations)
- Using a damaged power cord, or unplugging by pulling the cord instead of the plug
- Leaving the saw plugged in during blade changes, cleaning, or adjustments
- Poor body position and hand placement (hands too close to the blade; no push stick for narrow rips)
This model is factory wired for 120V, 60 Hz operation and is intended for a properly grounded outlet. Electrical shortcuts are a common cause of nuisance trips and unsafe operation.
| Item | Good practice | Common mistake |
|---|---|---|
| Power source | 120V, 15A branch circuit; time-delay fuse or breaker | Using an undersized circuit or overloaded outlet |
| Grounding | Use a properly grounded receptacle | Using an ungrounded outlet |
| Cord condition | Replace a damaged cord immediately | Running with a nicked or crushed cord |
| Service work | Unplug before servicing or changing blades | Adjusting with the saw plugged in |
Most serious table saw incidents start with loss of control: kickback, binding, or a hand getting too close to the blade. Consistent habits like using guards, keeping the work area clean and well lit, and unplugging before adjustments reduce risk and help you get straighter, cleaner cuts.
- Verify the blade is tight and appropriate for the material
- Confirm guards are installed and working correctly whenever possible
- Keep visitors and children out of the immediate work area
- Stand in a stable position and keep fingers away from the spinning blade
- Turn the switch OFF before unplugging, then unplug before any adjustment
Last updated: February 2026
Are all table saw arbor nuts the same size?
No. Arbor nuts are not universal; the thread size and nut style depend on the saw’s arbor design. On the Craftsman 351221140 table saw, the arbor uses a right-hand thread (loosen counterclockwise, tighten clockwise), and the correct nut is the one specified for this model in the owner's manual.
Many 10-inch table saws use a 5/8-inch arbor for the blade bore, but that does not guarantee the arbor nut is the same across brands or even across models.
Common differences include:
- Arbor diameter and thread pitch (the big reason nuts are not interchangeable)
- Nut hex size (wrench size)
- Flange design (inner and outer blade flange thickness and diameter)
- Direction of thread (most are right-hand, some specialty saws differ)
- Stack-up length needed for dado sets or molding heads
From the model’s instructions:
- The arbor has a right-hand thread.
- Blade changes use two supplied wrenches: one holds the arbor flats, the other turns the arbor nut.
- The saw is designed for 10-inch blades with 5/8-inch arbor holes.
| Item | Craftsman 351221140 guidance |
|---|---|
| Thread direction | Right-hand (loosen CCW, tighten CW) |
| Blade size | 10-inch diameter |
| Blade bore | 5/8-inch |
| Tools used | Two blade wrenches (hold arbor flats + turn nut) |
Using the wrong arbor nut can prevent the blade or dado stack from clamping correctly. That can cause blade wobble, poor cut quality, and increased kickback risk because the flange and nut are what keep the blade tight and centered.
We recommend these checks before ordering or swapping parts:
- Confirm your model number is 351221140 (not just “Craftsman 10-inch saw”)
- Verify the nut matches the right-hand thread direction
- Compare the nut’s seating face to the blade flange so it clamps flat
- If using a dado set, follow the manual’s flange guidance for wide stacks
Last updated: February 2026
Does Craftsman make a good table saw?
Yes; Craftsman table saws are a solid choice for many DIYers because they typically deliver good cutting power and practical features at a reasonable price. For the Craftsman 351221140 specifically, the owner's manual emphasizes using the fence and miter gauge correctly and sticking with recommended accessories, which is what drives safe, consistent results.
A “good” table saw is one that stays accurate, runs smoothly, and supports safe operation for the cuts you actually make.
- Accuracy: a fence that locks parallel to the blade and a miter gauge that tracks smoothly
- Stability: minimal vibration when cutting (often improved by a flat surface and tight hardware)
- Safety: guard and splitter use for through-cuts; push stick use for narrow rips
- Power delivery: proper 120V circuit and correct extension cord use to protect the motor
- Support for long stock: outfeed support for boards longer than 3 feet
From the documentation, this saw is designed around standard table saw best practices: rip fence for ripping, miter gauge for crosscutting, and accessory guidance to reduce injury risk.
| Task | What you use | Why it helps |
|---|---|---|
| Ripping with the grain | Rip fence | Keeps the work guided straight |
| Crosscutting | Miter gauge | Controls the workpiece angle and travel |
| Narrow ripping (under 4 inches) | Push stick | Keeps hands away from the blade |
| Long boards (over 3 feet) | Rear support (roller stand) | Prevents tipping and binding |
Most “mixed reviews” come down to setup and expectations. A table saw that is aligned, mounted securely, and used with the right jigs (auxiliary fence, featherboard, push stick) performs far better than the same saw used without those basics.
- Clean and wax rails if the fence slides poorly
- Replace a dull blade if cuts burn or the saw bogs down
- Tighten mounting hardware if vibration increases
- Use a dedicated 120V circuit (15A time lag fuse; #14 AWG minimum) to avoid low-voltage motor damage
Last updated: February 2026
Where is the reset button on a Craftsman table saw?
On the Craftsman 351221140 table saw, the reset is the thermal-overload reset button on the side of the ON/OFF switch assembly (under the front rail). If the motor shuts off, turn the saw OFF, unplug it, let the motor cool 3 to 5 minutes, then press the reset.
- Press the red OFF paddle (or OFF button) and unplug the power cord.
- Wait 3 to 5 minutes for the motor to cool.
- Make sure the blade and work area are clear of debris.
- Locate the ON/OFF switch under the front rail.
- Press the thermal-overload reset button on the side of the switch assembly.
- Plug in and start the saw by fully pressing the green ON button.
The manual describes the switch location and reset procedure for this model:
| Item | Where it is | What it does |
|---|---|---|
| ON/OFF switch | Under the front rail | Starts and stops the saw |
| Thermal-overload reset | On the side of the switch assembly | Restarts the motor after an overload trip |
For diagrams and the exact switch assembly layout, use the owner's manual.
The thermal overload is designed to shut the motor off to prevent damage. Common causes include:
- Feeding the workpiece too fast
- Using a dull blade
- Cutting material beyond the saw’s capacity
- Low voltage or a long/light-duty extension cord
- Confirm the blade spins freely and nothing is binding.
- Verify the blade is sharp and appropriate for the cut.
- Use a properly rated extension cord (shorter and heavier gauge is better).
Last updated: February 2026
