The
various bushings and bearings tend to wear to the point where you
can feel some play in the spindles that the blades are attached to.
When you go to sharpen the blades, give each one a shake before you
loosen it off. If you feel play there, the bushings may need to be
replaced. That’s a job for a pro.
Jack
up the front end and give the wheels a shake. Again, if there is
play there, the bushings or bearings may need to be replaced. Also,
if you notice that the machine has a tendency to wander from the
straight and narrow while your cutting the grass, the front wheels
may need aligning. Or, maybe you just need another cup of coffee.
Check
that all controls are working smoothly. There should be no binding.
Binding can be caused by maladjustment, dirt build up or damage to
the control mechanism. Give the machine a good cleaning, especially
on the bottom, and check your manual regarding instructions on
making adjustments. It is also a good idea, at this point to check
the safety interlock system on the machine. This system is designed
to prevent the machine from starting accidentally in an unsafe
manner. In order for the machine to start certain controls must be
disengaged and someone must be sitting in the seat. Check the manual
for the starting procedure for your make and model of machine.
You’ll need to make sure that the spark plug is connected to do
this. Test and see what happens if you violate that procedure, the
machine should not start. If it does, take it to a qualified
mechanic right away, it is unsafe to use.