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CHAPTER 5
MAINTAINING THE DR TRIMMER/MOWER
This chapter covers regular maintenance procedures that will ensure the best performance and long life of
your DR TRIMMER/MOWER. For engine maintenance, please refer to the Engine Owner’s Manual that
came with your Trimmer. Service intervals listed in the checklist below supercede those listed in the Engine
Owner’s Manual.
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION, STOP THE ENGINE, WAIT FIVE
(5) MINUTES TO ALLOW ALL PARTS COOL. DISCONNECT THE SPARK PLUG WIRE, KEEPING IT AWAY FROM
THE SPARK PLUG.
Regular Maintenance Check List
NOTE: Consider that the service intervals shown are the maximum under normal operating conditions. Increase
frequencies under extremely dirty or dusty conditions.
Procedure
Before Each
Use
Every 25
Hours
Every 100
Hours
Check the Engine Oil level.
▲
Check the general equipment condition, e.g. Nuts, Bolts,
Welds, etc.
▲
Check and clean out the Mow-Ball™ Support.
▲
Replace broken or frayed Cutting Cords.
▲
Check the Mow-Ball™ Support Line Plates for wear.
▲
Clean Engine Exterior, Cooling Fins and remove collected
grass trimmings.
▲
Check the Belt for fraying or stretching.
▲
Lubricate Throttle Cable, Trimmer Control Cable and Idler
Pulley with FLUID FILM
®
or equivalent.
▲
Clean Engine Air Foam Filter
▲
Change the Engine Oil and the Oil Filter* 1
st
time 5 hrs.
▲
Replace the Engine Paper Air Filter Cartridge
▲
Adjust Clutch Cable on the SELF-PROPELLED model.
▲
Remove the Bottom Shield and clean out collected debris.
▲
Replace the Spark Plug
▲
* An Oil Filter is on COMMERCIAL and SELF-PROPELLED models only.
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