Wacker Neuson BTS 630 - Page 58

10 Maintenance BTS 630, 635
58 Operator's manual
Checking/cleaning the spark plug
1. Check the isolator – if damaged, replace the spark plug.
2. Clean the electrodes with a wire brush.
3. Measure the spark plug gap with a feeler gauge – if necessary, correct it by
bending the lateral electrode.
See chapter Technical data for the spark plug gap.
4. Check the spark plug gasket – if damaged, replace the spark plug.
Installing the spark plug
1. First screw in the spark plug manually then tighten it with a combination
wrench.
2. Place the spark plug cap onto the spark plug.
3. Position the air cleaner cap and tighten it.
Torque 5 Nm.
Item Designation
1 Spark plug air gap
2Isolator
NOTICE
A spark plug that is too loose or too tight can damage the engine.
f Tighten the spark plugs with the specified torque.