Echo ES-250ES Operator's Manual page 28

Maintenance and care
Shredder blade
Check spark plug
a: 0.6 - 0.7 mm
Never remove vacuum tube or open fan guard when
®
SHRED'N'VAC is running or serious personal injury
may result. Always wear heavy-duty work gloves
when working in shredder blade area.
IMPORTANT
Do not operate SHRED'N'VAC
or broken. Return unit to Echo Dealer for service.
1. With engine stopped, remove spark plug wire, remove vac-
uum tube from unit.
2. Remove accumulated debris from blade and inspect for
damage.
3. Install vacuum tube. Refer to "Install vacuum tube and Install
bag"(page 14) in assembly section for correct assembly pro-
cedures.
Tools required: T-Wrench, Feeler gauge
Parts required: Spark plug
IMPORTANT
Use only NGK BPMR8Y spark plug otherwise severe engine
damage may occur.
1. Check plug gap. Correct gap is 0.6 mm to 0.7 mm.
2. Inspect electrode for wear.
3. Inspect insulator for oil or other deposits.
4. Replace plug if needed and tighten to 15 N·m - 17 N·m (150
kgf·cm to 170 kgf·cm).
26
DANGER
®
if shredder blade is damaged