16 
operating techniques
WARNING
Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconscious- ness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is directed away from your face and body.
warning
Before operating unit, be sure to read and understand the entire Operator’s Manual to avoid the chance of serious personal injury.
Note
For best results, use BRD redefining blade (provided with unit) ONLY for redefining existing bed edges. For edging next to curbs, sidewalks, or other hard surfaces, remove redefining blade and install ECHO Approved Premium Power Edger blade. Use of redefining blade next to hard surfaces, can lead to premature blade wear.
1.Always grip throttle handle with right hand, and support handle with left hand.
2.Before using Redefiner, check the area and remove objects that could be thrown.
3.Carefully plan your direction of travel. Walk outside of bed. Be aware of curbs or other obstacles.
4.Work with body turned toward engine as shown. Travel in direc- tion of arrow, pulling rather than pushing unit. Carefully watch bed edge and direction of travel. Do NOT walk backwards.
important
Do not walk towards gear case while operating unit with redefin-
ing blade installed, otherwise poor performance or damage to unit could occur.
5.When starting to work, run the engine at full throttle, and lower the blade gently into the ground. Travel around perimeter of bed, allowing the Redefiner to improve bed's edge.
6.Do not force the blade. Move only as quickly as conditions will al- low. If performance suffers or engine RPM drops, reduce walking speed or decrease blade depth and allow engine RPM to return to normal before continuing.
Note
Blade height may need to be adjusted due to differences in height between the bed and the top of the grass.
warning
Never adjust blade height while engine is running, otherwise seri- ous personal injury may result.
7.Loosen adjustment knob (A) and adjust the blade’s depth of cut. Tighten adjustment knob (A) when desired blade height is achieved.
A
INCREASE
DEPTH
DECREASE
DEPTH