OM-491 Page 27
7-3. Servicing Air Cleaner
Ref. 187 602-A / 801 964 / Ref. 191 631-A
Y Stop engine.
Y Do not run engine without air
cleaner or with dirty element.
1 Evacuator Valve
2 Dust Cap
3 Element
4 Housing
Clean or replace element if dirty or
damaged. Replace element yearly
or after six cleanings.
To Clean air filter:
Wipe off cap and housing. Remove
cap and dump out dust. Wipe dust
from inside cap and housing with
damp cloth. Remove element and
reinstall cap.
Y Do not clean housing with air
hose.
Clean element with compressed
air. Max. air pressure: 100 psi (690
kPa). Replace element if it has
holes or damaged gaskets.
Reinstall element and cap
4
3
Blow
Inspect
21
7-4. Inspecting And Cleaning Optional Spark Arrestor Muffler
802 170-A / Ref. 191 631-A
Y Stop engine and let cool.
1 Spark Arrestor Muffler
2 Cleanout Plug
Remove plug and remove any dirt
covering cleanout hole.
3 Exhaust Pipe
Start engine and run at idle speed to
blow out cleanout hole. If nothing
blows out of hole, briefly cover end
of exhaust pipe with fireproof
material.
Y Stop engine and let cool.
Reinstall cleanout plug.
Tools Needed:
3
2
1
3/8 in