Blount manual Maintenance 633GC OPERATOR’S Manual

MAINTENANCE 633GC OPERATOR’S MANUAL

After Every Use ….

1.Rinse saw, bar & chain with water.

2.Check for loose fasteners. Tighten as necessary.

3.Inspect, flush and grease the chain tensioner.

4.Inspect drive sprocket for wear. Replace sprocket if groove cuts through the top of the tooth.

5.Check drive sprocket bearing for wear by spinning clutch cup. Replace if worn out.

6.Grease drive sprocket bearing. Inject grease into the end of the drive shaft. Spin clutch cup while greasing.

7.Check the starter cord for wear or damage. Replace as necessary.

8.Lube starter recoil spring. Spray lightweight oil into lube hole. Also, spray lightweight oil into the air intake slots on the starter housing to keep starter pawls from sticking.

9.Inspect air filter and spit- back screen. Replace filter if dirty.

10.Spit-back screen should be white with no oil build-up. Rinse in gas or solvent to clean.

11.Spray saw, bar and chain with lightweight oil.

After 10 hours ….

1.Remove the starter cover and lubricate the starter recoil spring. Clean the fins and the starter pawls on the flywheel with a wire brush, then grease starter pawls.

2.Remove & clean the spark plug. Check the electrode gap. The correct gap is

.020 inch (0.5mm).

3.Inspect air filter, replace if nessesary.

4.Clean the spit-back screen (inside the air filter) with gas or solvent.

After 40 hours ….

1.Change spark plug. Adjust electrode gap to .020 inch (0.5mm).

2.Check fuel filter located inside the fuel tank. Clean or replace if clogged.

24 © 2007 ICS, Blount Inc. P/N 70944 Jan 07