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Blade Won’t Cut
The blade has dulled and will not cut efficiently.
Replacing the Blade
Make sure that the device is unplugged to avoid injury. Grab the correct replacement blade for the same model that you own. At the front of the device look for the yellow and silver locking latch and pull it. Hold the blade lock while you pull the old blade free making sure that you do not injure yourself on the blade even though it might be dull. Slip the new blade into the device making sure to match the holes up and let go of the latch. Allow the latch to close and check that the blade is secured into the device before using. After knowing if it is secured use the device as you would normally.
Excessive Wear
An issue due to excessive wear could be indicated by a slower sawing action, a motor running unusually warm, or a burning smell.
Try a Different Blade
In some cases the blade may be dull or placed at an incorrect angle causing the motor to overwork. To fix this issue unplug the device and replace the blade as explained above. Once the new blade is secure plug the device back in and continue to use.
Unplug the Device and Allow it to Cool
The device may be overheating if in use for extended periods of time. If using the device for extended periods of time, unplug the device and allow it to cool for 10-15 minutes in a well ventilated area. After the cool off period plug the device back in and continue to use.
Motor Assembly
If the above steps do not solve the issue then there may be an issue with the motor assembly. To solve this issue the device will need to be disassembled and the motor assembly will need to be viewed to locate the issue. A number of problems could occur with the motor assembly such as contamination due to dirt or grease, a burnt out brush, or the electric coil wires could be shorted.
Trigger Switch is Not Working
The saw will not power on when trigger switch is pressed or the trigger switch is jammed.
Faulty Spring
The spring may be twisted or loose causing a lack of alignment to the motor assembly. First, unscrew the device with the correct tools and separate the trigger assembly. Then, carefully unscrew and uncover the trigger casing that contains the spring. If the spring is warped or damaged, remove and replace with a new spring. If there is a small item blocking the spring from being compressed, use tweezers to remove it and adjust the spring to stay upright. Secure the device back together using the proper screws and screwdriver.
Dust in Trigger Housing
Ensure there isn't any dust that could possibly block the spring mechanism or cause overheating. First, unscrew the device to take it apart and separate the trigger assembly. Carefully unscrew and open up the housing to have access to the internal parts. Then, shake out any dust or small buildup of debris or water. If needed, use a small cotton swab to remove any residing dust in the walls of the housing. After cleaning, screw in the housing and attach the trigger assembly to its original position. Assemble the device and test for functionality.
Burned Electrical Contacts
Electrical contacts may burn within trigger assembly due to overheating and excessive wear. Disassemble the device and isolate the trigger assembly. Carefully uncover the trigger housing until the soldered wires and electrical contacts are seen. If damaged and burnt, replace the trigger switch by uninstalling and connect the wiring of the device to the contacts in the new trigger assembly.
Saw Blade Stalling and Restarting
The blade is stalling and then restarting periodically.
Gear Assembly Missing a Tooth
The gear in the gear assembly could possibly be missing a tooth causing the blade to stall while the motor still turns making it seem like a motor issue. Touching or messing with the blade while the device is powered on is not advised however trying to use it when the blade stalls could be a hazard. Check the assembly and making sure that the gear has all of its teeth and that it isn’t getting caught in a bare space where a tooth used to be. If not all teeth are there then replacing the gear is the next step.
Saw Blade Not Secured
The saw blade is loose-fitting and shifts when powered on.
Reciprocating Shaft is Damaged
The shaft assembly that holds and drives the blade may be damaged causing the blade to shift out of place. To replace the shaft kit: Remove the screw that secures the lock plate which is found at the end region of the saw where the blade would protrude out of. Then unscrew the shoe assembly and the boot of the saw which is the dark grey piece connected to the yellow-colored body. Unscrew the cover plate and bushing to uncover the actual, damaged reciprocating shaft. Carefully remove the damaged shaft and put in the new shaft by aligning the elongated hole over the pin. Secure the new shaft with the bushing and generously apply some grease unto the shaft’s surface. Screw on the cover plate and cover the protected assembly with the boot. Attach and screw back on both the shoe assembly and lock plate.
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