Specifications

37
4. Service Guide
4-28 Air Cleaner Inspection
This device blows fallen leaves to a collection point but at the same time small particles (dust and sand)
become airborne. If such dust invades the engine, the engine mechanism will wear quickly.
So periodically check and clean the element according to the following table.
・
・・
・ The power blower operating environment is very dusty so the air cleaner will clog more
quickly than that of other power tools. Neglecting air cleaner check and maintenance will
cause rapid engine wear and poor engine performance.
・
・・
・ The urethane element may deteriorate and crumble if the ambient temperature fluctuates
greatly. If temperature related engine trouble is observed, resolve the trouble cause then
replace the filter with a new one.
Inspection Period
Operating Hours
Inspection Item
Daily 25 hours 50 hours 100 hours
Remarks
Element ○△ ☆
Pre-filter ○△ ☆
If this material is damaged, deformed, or aged and
crumbling, replace it with a new one.
（Annual replacement is recommended.）
Paper Filter ○△ ○△☆
If this filter is cleaned six times or more before the
replacement interval arrives, the paper part darkens
or water or oil adheres, replace it with a new one.
(Annual replacement is recommended)
○: Inspection △: Clean ☆: Replace
4-29 Element Removal
Single layer dry urethane foam HB23 Series
Remove the cover while pressing the clip. Remove
the two elements.
Single layer dry urethane foam HBZ26 Series, EBZ30 Series
Loosen the knob then remove the element.
CAUTION
Silencer
Cover
Elements
Screen
Plate
Clip
Cover
Element
Screen
Packing
Knob
Knob