DR Power Sprint (2000 - 2004) - Manual (Page 19)

DR ® TRIMMER/MOWER ™ Safety & Operating Instructions 13
Maintenance
*** For engine maintenance, please refer to the engine
manufacturer's owner's manual. ***
IMPORTANT!: Because of the conditions the DR ® TRIMMER/MOWER ™ is used in,
air filters and oil should be changed more frequently than is recommended in your
engine manufacturer's owner's manual. Please follow these recommendations:
Paper Air Cartridge: Should be replaced every 25 hours of operation. Replace
more frequently if operating in extremely dry and dusty conditions.
Oil: Should be drained and replaced after the first 5 hours, and every
subsequent 25 hours of operation.
Regular Maintenance
Regular maintenance is the way to ensure the best performance and long life of your machine.
Below is a list of recommended maintenance procedures. Follow the instructions in this manual
and your engine manufacturer's owner's manual.
WARNING: Always allow the engine to cool completely and remove the spark plug wire
before performing any maintenance procedure.
1. Clean any debris from the top and bottom of the machine, cylinder head fins, blower housing,
finger guard, debris guard, filter and muffler areas with a brush or rag.
2. Replace the paper air filter and clean the foam filter (Tecumseh engine only) every 25 hours
of operation. More frequently if operating in extremely dry and dusty conditions.
3. Replace the oil after the first 5 hours and every subsequent 25 hours of operation.
4. Clean the spark plug and replace it if needed.
5. Check the Mow-Ball
™ Support assembly and clean out any debris.
6. Lubricate the engine throttle cable, trimmer control cable, and idler pulley with FLUID
FILM ® or a similar lubricant.
7. Check the Mow-Ball ™ Support and line plates for wear.
8. Replace broken or frayed cutting cords.
9. Inspect the belt for fraying or stretching. Replace it if necessary.
10. Check the bolts and nuts on the bearing housing assembly. If they are loose, tighten them.
Check all the bolts and nuts occasionally throughout the season to be sure they're secure.