SO53 3LE
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i. Remove the screws and engine cover as described previously.
ii. Clean the engine fins.
iii. Lift the chain brake over the post.
iv. Lay the chainsaw on its side with the bar and chain on the ground.
v. Remove the chain lubricant and fuel caps.
vi. Remove the three screws that hold the starter housing in place.
vii. Lift off the starter cover and set aside.
viii. Replace chain lubricant and fuel caps to prevent contamination during cleaning.
ix. Clean the flywheel fins.
x. Replace the starter housing. Reinstall screws and secure.
xi. Replace the chain lubricant and fuel caps.
xii. Replace the engine cover. Reinstall screws and secure.
xiii. Replace the chain brake on the post.
Note: Check to ensure that the air filter is in the proper position before reinstalling
the engine cover.
Note: If you notice power loss with the petrol-powered tool, the exhaust port and
silencer may be blocked with carbon deposits. These deposits may need to be
removed to restore performance. We highly recommend that only qualified service
technicians perform this service.
CHECKING THE FUEL FILTER
See Figure 65.
Check the fuel filter periodically. Replace it if contaminated or damaged.
REPLACING THE SPARK PLUG
See Figure 66.
This engine uses a Champion RCJ4 or RCJ6Y or NGK BPMR7A with .025 in. electrode
gap. Use an exact replacement and replace every 50 hours or more frequently, if
necessary.
i. Remove the spark plug lead by carefully rotating back and forth whilst gently
pulling upwards.
ii. Loosen the spark plug by turning it counter clockwise with a wrench.
iii. Remove the spark plug.
iv. Hand thread the new spark plug, turning it clockwise. Tighten securely with
wrench.
Note: Be careful not to cross-thread the spark plug. Cross-threading will seriously
damage the engine.
v. Re-attach the spark plug lead by pressing firmly onto the top of spark plug.
JCB-CS38_Manual_D1.indd 30JCB-CS38_Manual_D1.indd 30 11/12/2010 6:44:19 PM11/12/2010 6:44:19 PM
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