Maintenance (continued)
50 Hour Maintenance
Perform more frequently in dusty or dirty conditions.
■Remove and clean the cylinder cover and clean grass and dirt from the cyl- inder fins.
■ Remove the cutting attachment, cut- | New Grease |
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ting attachment holder and gear shaft |
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collar. Remove the filler plug from |
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the side of the gearcase and press |
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new grease into the gearcase until old |
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grease is pushed out. Use only lith- |
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| Gear Shaft |
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Gearcase Lubricant or equivalent. |
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Fuel Filter Maintenance | Figure 29 |
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■ Use a hooked wire to extract the fuel |
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filter from inside the fuel tank. |
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■ Remove the filter element. |
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■ Before reinstalling the new filter ele- |
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ment, inspect the condition of all the |
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fuel system components (fuel |
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line, fuel return line, tank vent line, tank |
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vent, fuel cap and fuel tank). If damage, |
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splitting or deterioration is noted, the |
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unit should be removed from service |
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until it can be inspected or repaired by a |
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| Wire | ||
CAUTION! |
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Make sure you do not pierce the fuel line |
| Figure 30 |
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with the end of the hooked wire. The line |
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is delicate and can be damaged easily. |
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Every 135 hours of operation, | 4. Seperate the muffler from the forward | 7. Inspect the cylinder exhaust port for | |||||
remove and clean the muffler. | muffler shield, while observing the orien- | carbon buildup. | |||||
Hard starting or a gradual loss of perfor- | tation of the components. See Figure 31. | 8. Reassemble the muffler in the reverse | |||||
5. Remove the spark arrester screen and | order of disassembly. | ||||||
mance can be caused by carbon depos- | |||||||
clean with a stiff bristle brush. |
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IMPORTANT! |
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its lodged in the muffler’s spark arrester |
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6. Gently tap the muffler on a wood sur- |
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screen. | If you note excessive carbon buildup, con- | ||||||
face to dislodge any loose carbon. | |||||||
1. Remove the spark plug boot. | sult with an authorized servicing dealer. | ||||||
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. Remove the four 4 mm engine cover screws (two in the back and two in the front of the cover) and lift the cover from the engine.
3.Remove the two 5 mm muffler screws. Remove the lower muffler screw, then lift the muffler assembly from the engine.
WARNING!
Never operate this unit with a damaged or missing muffler or spark arrester! Operating with missing or dam- aged exhaust components is a fire haz- ard and may also damage your hearing
Rear Muffler Shield | Spark Arrester |
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| Screen | |
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| Muffler Shield |
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| 5 mm Muffler |
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| Screws |
Rear |
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Muffler |
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Shield |
| Lower Muffler Screw |
Screw |
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Figure 31 | Muffler |
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| 15 |