Troubleshooting your Hitachi table saw when it makes bad cuts
If you have to push the work piece harder through the table saw blade and you see ragged, torn, splintered or burnt grain along the edges where you just cut, you may need to clean, adjust or replace the blade. You may also need to clean the table and use a guide to achieve clean cuts.
First, check the condition of the saw blade for damage or residue. Clean gum or pitch residue off the blade using turpentine and steel wool. Replace the saw blade if it's worn or damaged.
Check blade alignment because the blade won't make accurate cuts if it's not parallel with the miter gauge groove. If blade alignment is off, use a combination square to accurately adjust the blade so it's parallel with the miter gauge groove.
Use the right type of saw blade to cleanly cut the work piece.
Clean gum or pitch off the table so the work piece feeds smoothly through the cutting blade area when making cuts.
Use the rip fence or miter gauge to guide your work piece through the saw blade for uniform cuts.
Troubleshooting tips to follow for your Hitachi band saw when it won't start
A bad power supply, broken power cord, failed on/off switch or bad drive motor can prevent the band saw from starting.
Check the power supply first. Plug a shop light or other electrical tool into the electrical outlet that you’re using for the band saw to make sure the outlet works. If the electrical outlet is dead, reset the house circuit breaker for the outlet. If the outlet still doesn’t work, try using a different outlet to power the band saw.
If the electrical outlet is okay, unplug the band saw and check the power cord for damage. Replace the cord if it’s damaged.
If the power cord is okay, use a multimeter to check for continuity through the on/off switch with the switch turned on (with the band saw still unplugged). The meter should measure near 0 ohms of resistance through the switch. If the meter measures infinite resistance, replace the switch because it’s preventing the drive motor from getting power.
If the on/off switch is okay, check the wire harness connections between the switch and the drive motor. Reconnect any loose wires and repair any broken wires. If the wiring connections are okay, then you’ll likely need to replace the drive motor because it doesn’t run even though it should be getting electrical current through the power cord, on/off switch and wires.
