Spark Plug Maintenance - ESAB Ruffian ES 150G EDW Instruction Manual

8 MAINTENANCE
Low profile air filter components
1 Screw
2 Air filter cover
Replace or cleaning the low profile air filter components
1. Remove screw and air cleaner cover.
2. Remove foam element from base.
3. Replace if needed or wash the foam element in warm water with detergent. Rinse and
allow to air dry.
4. Lightly oil foam element with new engine oil; squeeze out excess oil.
5. Reinstall foam element into base.
6. Reinstall cover and secure with screw.
8.1.3

Spark plug maintenance

NOTE!
Do not clean spark plug in a machine using abrasive grit. Some grit could remain in
spark plug and enter engine causing extensive wear and damage.
Engine misfire or starting problems are often caused by a spark plug that has improper gap or is
in poor condition.
Engine CH440 is equipped with following spark plug:
Gap
Thread Size
Reach
Hex Size
Replacing or cleaning and adjusting the spark plug
1. Disconnect spark plug cap from end of plug. Clean out debris from around spark plug.
2. Remove spark plug.
3. If the electrode is oily, clean it using a clean, dry rag. If the electrode has deposits on it,
polish it using emery paper.
4. Check gap using wire feeler gauge. If possible, adjust gap to 0.76 mm (0.030 in.).
5. Install the adjusted spark plug into cylinder head if it is in a good condition or replace it by
a new one. Torque the spark plug to 27 N·m (20 ft. lb.).
0463 905 001
3 Air filter foam element
4 Air filter base
0.76 mm (0.030 in.)
14 mm
19.1 mm (3/4 in.)
15.9 mm (5/8 in.)
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