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Changing the Engine Oil
Change the oil after the first 8 operating hours and than
after every 50 operating hours or every season (more
frequently in dusty or dirty conditions).
1. Run the engine to warm the engine oil.
Note: Warm oil flows better and carries more
contaminants.
Warning
Oil may be hot after engine has been run, and
contact with hot oil can cause severe personal
injury.
Avoid contacting the hot engine oil when you
drain it.
2. Stop the engine and wait for all moving parts to stop.
3. Disconnect the wire from the spark plug (Fig. 12).
4. Place a suitable drain pan beside the right side of the
lawn mower.
5. Remove the dipstick by rotating the cap
counterclockwise and pulling it out (Fig. 8).
6. Raise the left side of the lawn mower to drain the oil
into the drain pan.
Note: You can also remove the oil from the crankcase
using an oil extractor.
7. Lower the left side of the lawn mower.
8. Insert the dipstick into the filler neck and rotate the
cap clockwise until it is tight.
9. Recycle the used oil according to local codes.
10. Fill the crankcase to the Full line on the dipstick with
fresh oil. Refer to the Filling the Crankcase with Oil
on page 7.
11. Wipe up any spilled oil.
Maintaining the Cutting Blade
Always mow with a sharp blade. A sharp blade cuts
cleanly and without tearing or shredding the grass blades.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 12).
3. Drain the gasoline from the fuel tank; refer to
Emptying the Fuel Tank and Cleaning the Fuel Filter
on page 18.
4. Tip the lawn mower onto its right side (Fig. 22).
Figure 22
1. Blade
2. Blade bolt and lock
washer
Inspecting the Blade
Carefully examine the blade for sharpness and wear,
especially where the flat and the curved parts meet
(Fig. 23A). Because sand and abrasive material can wear
away the metal that connects the flat and curved parts of
the blade, check the blade before using the lawn mower. If
you notice a slot or wear (Figs. 23B and 23C), replace the
blade; refer to Removing the Blade on page 18.
Figure 23
1. Sail
2. Flat part of blade
17
757
3. Accelerator
1
1
2
1
3
4
270
3. Wear
4. Slot formed
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