Tools that are clean, sharp and correctly adjusted cut more accurately, last longer and break down less often. Neglected tools burn wood, cut out of square, wear out early and are more likely to cause an accident. For a woodworking business, a tool failure also means delays: an order waits while a machine is repaired or a part arrives.
This post sets out a simple maintenance schedule, the checks every power tool needs, a step-by-step table saw tune-up, care for other machines and hand tools, and when to call for repair or replace a tool.
Why Maintenance Matters for a Business
- Accuracy. A saw that is slightly out of alignment makes joints that do not close and parts that do not match, which means remakes and wasted wood.
- Safety. Dull blades, loose guards and misaligned fences raise the risk of kickback and injury.
- Downtime. Planned maintenance happens when it suits you. Breakdowns happen in the middle of an order.
- Tool life. Clean, adjusted tools last longer, which protects your investment.
Set a Maintenance Schedule
Set aside regular time for maintenance, and put it on a calendar so it is not skipped when work is busy. How often depends on how much you use each tool. A starting point:
After Each Session
- Vacuum dust off tools, tables and the floor.
- Wipe resin and glue off cast-iron tables.
- Put blades, bits and hand tools away so their edges are protected.
- Hone chisels and plane irons if they have been used.
Weekly or Monthly
- Check that guards, riving knives and fences are tight and working.
- Check power cords and plugs for damage.
- Clean resin from saw blades and router bits.
- Empty and clean dust collector bags, bins and filters.
- Wax cast-iron tables to protect them from rust and help wood slide.
Every Six to Twelve Months
- Tune up the table saw (see below).
- Check band saw tires, guides and blade tension.
- Check jointer and planer knives, tables and feed rollers.
- Clean sawdust from inside machine cabinets and motors’ cooling vents.
- Check belts, bearings and switches on all machines.
If you cannot take a full day for maintenance during a busy period, do it at the next opportunity rather than letting it slide.
Checks for Every Power Tool
Each tool and each maker has its own setup and maintenance instructions. Read the manual and follow it; it is the best guide to adjustments, lubrication points and parts. Some checks apply to almost every tool:
- Blades and tables. Saw blades should be square (90 degrees) to the table on table saws and band saws when set to zero.
- Fences. Fences on saws, jointers and router tables should lock firmly and not move in their slots.
- Edges. Clean, sharpen or replace blades, bits and knives when they dull. A dull edge burns the wood, needs more force and is more likely to catch.
- Cords. Replace frayed or damaged cords. An electric shock while running a tool can also cause an injury from the tool itself.
- Guards. Vibration can loosen guards. Check that they are fitted firmly and move freely.
- Power off first. Unplug a tool or remove its battery before any adjustment or maintenance.
Canada’s Centre for Occupational Health and Safety advises against using compressed air to clean machines or clothing. A vacuum and brushes remove the dust without blowing it into the air.
Setting up a tool well also means planning where it plugs in, where it stands and how it is lit. Mobile bases let you roll tools you are not using out of the way, and task lights over each machine help accuracy and safety. See how to set up a woodworking shop at home.
Table Saw Tune-Up
A table saw is the most precise machine in many shops and the one where poor alignment costs most, in accuracy and in safety. Check a new saw before you use it, so any manufacturing faults can be fixed under warranty, and tune it once or twice a year after that. Some steps, such as checking the arbor, only need doing when the saw is new and every few years afterwards. Always follow the manual for your saw, since designs differ.
Set aside an afternoon. You will need a combination square, a straightedge, wrenches and Allen keys, a brass brush and an old toothbrush, a blade cleaner or degreaser, paste wax, and ideally a dial indicator, a gauge that measures very small movements.
1. Clean the Saw
- Unplug the saw. Remove the throat plate and the blade.
- Vacuum the sawdust out of the cabinet, the motor area and the height and tilt mechanisms. Stiff height and tilt handles are a sign this step is overdue.
- Loosen caked dust and resin with a degreaser and brushes. A brass brush removes stubborn buildup; an old toothbrush reaches tight spots.
- Clean the tabletop and wings. Remove rust or buildup with a non-woven abrasive pad and a solvent.
- Apply paste wax to the cast-iron surfaces and buff it off. It protects against rust, helps wood slide and makes cleaning easier.
2. Check the Arbor and Flange
The arbor is the shaft that holds the blade, with a flange on one side and a washer and nut on the other.
- Check the flange and washer surfaces for burrs, buildup or damage that would stop the blade sitting flat. Clean them, and remove small burrs carefully with a fine file, or by rubbing the washer on sandpaper laid on a flat surface.
- Clean the arbor threads with a brass brush.
- Check for runout, a wobble as the arbor turns. With a dial indicator fixed to the table, touch its tip to the flange face and turn the arbor slowly by hand. Any reading means the flange is not running true. Check the result against the maker’s tolerance, and on a new saw, claim a fix under warranty.
- Watch the blade as it slows after switching off. If it wobbles, the blade itself may be bent; try another blade before blaming the saw.
If the arbor is not true and cleaning does not help, it usually has to be replaced. Contact the maker or an authorised parts supplier for the right part.
3. Check Bearings and Belts
- Slip the belt off and turn the arbor by hand. It should turn smoothly without catching. Grip the arbor and push it up, down and sideways; any play suggests worn bearings. Worn bearings cause vibration, noise and strain on the motor, and should be replaced. Many modern saws have sealed bearings, so check with the maker how to replace them.
- On saws with a belt drive, lay a straightedge across both pulleys. If it does not sit flat on both, adjust the motor or a pulley until it does. Misaligned pulleys cause vibration and wear the belt.
- Replace belts that are frayed, cracked or worn. Some woodworkers fit link belts or machined pulleys to reduce vibration further.
4. Align the Blade With the Miter Slot
Every other adjustment depends on this one: the blade must be parallel to the miter slot.
- Raise the blade fully and mark one tooth.
- Rotate the blade so the marked tooth is at the front of the throat opening. Measure from the miter slot to the tooth with a dial indicator in the slot, or with the ruler of a combination square.
- Rotate the blade so the same tooth is at the back, and measure again.
- Woodcraft’s tune-up guide advises realigning if the two readings differ by more than a couple of thousandths of an inch.
How you adjust depends on the saw. On cabinet saws, where the blade assembly hangs from the top, you loosen three of the four bolts holding the top to the cabinet, keep the fourth snug as a pivot, tap the top into line with a mallet, and retighten. On contractor saws, the blade assembly is bolted to the underside of the top, and you shift the assembly instead. Recheck after tightening, because bolts often pull the parts slightly out of line; clamping the parts while you tighten helps. Check the manual for your saw before you start.
5. Align the Rip Fence
With the blade parallel to the miter slot, set the fence parallel to the slot, and it will be parallel to the blade. Lock the fence next to the slot and check it at the front and back, by touch, with a straightedge or with a dial indicator run along the slot. Adjust with the screws on the fence head. Check that the fence lock holds firmly and cannot slip sideways during a cut.
Woodworkers differ on whether the fence should be exactly parallel or angled very slightly away from the blade at the back, to give the cut board more room. Fine Woodworking’s guidance is clear on one point: a fence that angles towards the blade at the back pinches the wood and creates a kickback risk, so it must be corrected.
6. Align the Riving Knife or Splitter
The riving knife or splitter sits behind the blade and stops the cut wood closing on it. It should line up with the blade, so the wood passes it without catching. If it is off to one side, the board can bind and kick back, or the cut can drift. Check it against a straightedge laid against the blade and adjust it as the manual describes.
7. Level the Throat Plate
The throat plate (insert) should sit firmly, without rocking, and flush with or just below the table surface, so wood cannot catch on its edge. Most plates have leveling screws underneath; adjust them or add shims.
8. Check the Blade Stops
Raise the blade fully, set it to 90 degrees, and check it with a square against the blade body, between the teeth. Fine Woodworking’s method is to look for any light between the square’s ruler and the blade. Adjust the 90-degree stop until no light shows, then repeat at 45 degrees. On most saws, the stop screws are reached through the table or the cabinet with an Allen key. Recheck the stops from time to time to see whether the saw drifts out of adjustment with use.
9. Square the Miter Gauge
The marks on a miter gauge are not always accurate. Set the gauge at 90 degrees, hold a square against it and the blade, and adjust the gauge until it reads true. Repeat for 45 degrees. Confirm with a test cut on a board with one straight edge. If the gauge cannot be adjusted, mark the true positions on it.
10. Check the Height and Tilt Mechanisms
If the handles turn freely for a moment before the blade moves, there is play in the gears. If they are stiff, they probably need cleaning. Remove the throat plate and blade, and with a light, watch the mechanisms while someone turns each handle.
- Clean the gear teeth and the threaded rods with a brush and degreaser.
- Lubricate them with paste wax or a dry lubricant. Grease attracts sawdust and should be avoided on parts that are open to dust.
- If there is play, adjust the nuts on the mechanism as the manual describes, without overtightening, which makes the handles hard to turn.
Modern saws need little other lubrication. Many have sealed bearings and motors that need no maintenance. Some older saws have a grease point on the arbor; check the manual.
11. Check the Table for Bevel Cuts
Fine Woodworking adds a check for accurate bevel cuts: with the blade tilted to 45 degrees and the fence locked, a dial indicator set on the fence and touched to the blade should read the same at the front and back. If the difference is more than 0.005 inch, the table needs shimming between the top and the cabinet.
For buying a table saw and using it safely, see the table saw for a woodworking business.
Other Machines
- Band saw: release blade tension if the maker recommends it when the saw will stand unused, check tires and guides for wear, clean resin from the blade, and clear dust from the wheel housings. See the band saw.
- Jointer and planer: keep knives sharp, check that jointer tables are flat and in line, clean resin from beds and feed rollers, and wax the beds.
- Router: clean the collet and bits, replace a worn collet, and check the base and plunge action. See the router.
- Sanders: replace worn hook-and-loop pads, clean dust ports and keep motor vents clear.
- Dust collector and shop vacuum: empty bins before they are full, clean or replace filters, and check hoses for leaks and clogs.
- Cordless tools: look after batteries to make them last. See power tool battery care.
Hand Tools
- Hone chisels and plane irons little and often, so they never become badly blunt.
- Wipe steel tools with a light coat of oil or wax to prevent rust, especially in damp shops.
- Store saws, chisels and planes so their edges cannot touch other tools.
- Check squares for accuracy from time to time.
For sharpening chisels and plane irons, see woodworking hand tool basics.
When to Repair or Replace
- Use the warranty on new tools. Report faults early, while the tool is covered.
- Keep the manuals, receipts and parts lists for every machine.
- For consumer tools that fail under heavy use, replacing them with a heavier-duty model is often better value than repair.
- For machines, check that parts are available before you buy, and keep common wear parts, such as belts, blades and band saw tires, in stock.
For choosing tools that will stand up to business use, see tools for a woodworking business.
Practical Tips
- Put maintenance on a calendar.
- Check a new machine before its first job.
- Keep a log of tune-ups, part changes and problems for each machine.
- Vacuum, do not blow, dust off tools.
- Keep spare blades and belts so one failure does not stop production.
Sources
- Kaspern, 2017, Tune Your Table Saw, Fine Woodworking
- Phelan, 2017, Table Saw Tune-Up, Woodcraft
- Canadian Centre for Occupational Health and Safety, 2025, Woodworking Machines: General Safety Tips, CCOHS
