English
17
Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair
establishment or individual.
WARNING
Make sure that the engine has stopped and is cool before performing any service
to the blower. Contact with rotating blower fan or hot muffler may result in a
personal injury.
AIR CLEANER
• Check the air cleaner before use.
A clogged air filter may increase fuel consumption while cutting down the engine
power.
• Never operate the blower without an air filter or with a deformed or broken filter
element because unfiltered dusty air will quickly ruin the engine.
[170BT/170BF]
• Never clean the paper filter by tapping on it. Doing so may break the element,
causing dust to get sucked into the blower and damaging the engine.
CLEANING AIR FILTER:
[130BT] (F27)
1. Unscrew the knob and remove the air cleaner cover.
(1) Knob (2) Element
(3) Screen
2. Wash the filter element in fresh, non flammable cleaning solution (ex. warm soapy
water) and then dry.
(Clean the air filter once in a week.)
3. Reinstall the filter. Never forget to attach the screen. If the screen is not attached,
the cleaner will not seal properly and the dusts come into the cylinder.
4. Hook the slots of cover (4) on the tabs of body (5) and screw the knob.
[170BT/170BF] (F28)
1. Unscrew 2 knob bolts and remove the air cleaner cover. Then remove the prefilter
mounted inside the air cleaner cover.
(1) Knob Bolt (2) Prefilter
(3) Paper Filter
2. Wash the prefilter in fresh, non flammable cleaning solution (ex. warm soapy water)
and then dry.
(Clean the air filter once in a week.)
3. Exchange the paper filter element with new one in case it has been contaminated.
WARNING
• This prefilter is dry type.
• Never wash the prefilter in an oily cleaning solution.
• Never include oil in the wash.
• Do not clean the paper filter by tapping on it.
System/Compornent Procedure
Daily or
Before use
Every 25
hours after
Every 50
hours after
Every 100
hours after
Air Filter Prefilter Inspect/Clean 9
Paper Filter (170 only) Inspect/Replace 9
Fuel Leaks Inspect/Replace 9
Fuel Filter Inspect/Replace 99
Fuel Line Inspect/Clean 9
Spark Plug Inspect/Clean 9
Muffler Inspect/Clean 9
Bolts on muffler Tighten 9
Entire unit Inspect/Replace 9
Muffler Spark Arrester Inspect/Clean 9
Cooling System Inspect/Clean 9
Screws/Nuts/Bolts Tighten 9
Cylinder Exhaust Port Inspect/Clean 9
(1)
(3)
(2)
(4)
(5)
F27
[130BT]
F28
[170BT]
Maintenance
