38
• When an electrical component needs to be replaced, follow the guidelines in this
manual describing safe maintenance practice.
Diagnosing Mechanical Faults
• Eyes, ears and hands are the best tools for detecting mechanical failure modes.
As is the case for electrical faults, an accidental crash between tool and
workpiece is a likely way to cause mechanical damage. A wide variety of
mechanical failure modes also are possible even without a crash. A careful
inspection of the parts involved in a mechanical fault is the best way to assess its
extent.
• When a mechanical component needs to be replaced, follow the guidelines in
this manual describing safe maintenance practice.
• Ensure all hardware is tight and properly torqued after performing maintenance
operations. See torque specifications in chapter 2.
• Regular maintenance is a good way of detecting mechanical faults before they
occur. Inspection of covers, belts and wear surfaces often will reveal an issue
before it has turned into a full-blown fault.