Snapper 21500PRC - Cutting Blade Service; Continued on Next Page

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The mower itself requires very little service, however. It is important that the engine be serviced a,t the intervals
specified in the engine manual furnished with your mower. When performing any services on the mower, always
disconnect the spark plug wire from the spark plug to prevent unintentional starting. When tipping the mower to
work on the underside, always tilt with spark plug up to prevent flooding the engine with gasoline and oil which
would cause hard starting after servicing.
LUBRICATION SERVICES
ENGINE — Change oil every 25 hours as specified in engine manual.
TRANSMISSION (Self-Propelled Models) — Remove plug and check every 25 hours of operation. If grease is not
visible on the input gear, add small amount of Snapper "00" grease. CAUTION: Avoid over lubricating — capac¬
ity not to exceed 2 ounces of grease. Snapper "00" grease is available in a convenient quart size container
(Part No. 1-1050) qt your Snapper dealer. Replace plug after servicing transmission.
MOVING PARTS — Occasionally put a few drops of oil on movable surfaces of components such as the height
adjusting levers, wheel axles, shift levers, etc. Be careful not to spill oil on surface of drive disc on self-propell¬
ed models.
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CUTTING BLADE SERVICE '
CAUTION: Before checking or doing any work on the blade, disconnect the spark plug wire and secure it away
from the plug to prevent unintentional starting.
CHECK qt frequent intervals to make sure the blade is securely tightened and that it is in good condition.
REPLACE blade if badly chipped, bent, out of balance or as soon as a notch starts wearing in the tip between the
flat surface and upturned lift as depicted in View B, Figure 5. This type wear pattern occurs more rapidly under
sandy soil conditions. CAUTION: Never operate the mower with blade worn to the extent shown in View C as the
tip could fly off causing personal injury or property damage.
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FIGURE 5 - BLADE WEAR PATTERNS
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