Click here to jump straight to: Makita LS0714 Parts (Spare Parts Drawings & Parts List)
If your Makita LS0714 mitre saw is sparking, it is usually a sign that one of the motor components is worn or damaged. While small sparks from the carbon brushes are normal, excessive or bright sparking indicates a fault that should be repaired to prevent further damage to the motor.
Below we explain the most common reasons a Makita LS0714 sparks and how to fix the problem.
A small amount of sparking inside the motor is normal during operation, especially when new carbon brushes are fitted. However, if the sparking is:
Bright and continuous
Visible through the housing vents
Accompanied by a burning smell
Causing the saw to lose power
Then a fault is likely present.
Carbon brushes wear down with use and can cause excessive sparking when they no longer make proper contact with the commutator.
Symptoms:
Heavy sparking through the motor vents
Loss of power
Intermittent running
Solution:
Replace the carbon brushes with the correct Makita LS0714 compatible brushes.
A faulty armature is a very common cause of sparking on the Makita LS0714.
Symptoms:
Bright blue or orange sparks
Strong burning smell
Motor runs roughly
Reduced cutting power
Solution:
Fit a replacement Makita LS0714 armature.
The commutator is the copper segment the brushes contact. Dirt, carbon dust, or scoring can cause poor contact and arcing.
Symptoms:
Uneven sparking
Rough motor sound
Black carbon build-up
Solution:
Clean the commutator carefully or replace the armature if badly worn.
If the brush springs lose tension, the brushes cannot maintain proper contact with the commutator.
Symptoms:
Irregular sparking
Motor cutting in and out
Solution:
Replace the brush holders or brush assemblies.
A short circuit in the field coil can cause abnormal sparking and overheating.
Symptoms:
Motor overheating
Burning smell
Tripping electrics
Solution:
Replace the Makita LS0714 field coil.
Unplug the saw before inspection.
Remove the brush caps and inspect the brushes for wear.
Check for heavy black dust or burnt smell.
Run the saw briefly and observe sparking through the vents.
Stop immediately if sparks are excessive.
It is not recommended. Continued use can damage the armature and field coil, leading to a more expensive repair. Replacing worn brushes early can often prevent major motor failure.
Some parts may also fit:
LS0714
LS0714F
LS0714FL
Always confirm your model number before ordering spare parts.
If your Makita LS0714 is sparking, the most likely causes are:
Worn carbon brushes
Faulty armature
Dirty commutator
Weak brush springs
Failed field coil
In most cases, replacing the correct Makita LS0714 parts will restore normal operation and prevent further damage.
