46
Two-wheel tractor 3900
Edition 04.97
5. Maintenance:
Petrol Engine
Cleaning the Cooling System
After mowing for longer periods of time,
clogging of plants and dust may occur
in the cooling system. Sustained opera-
tion with the cooling system clogged lets
the engine heat up and causes damage.
l
Always check the cooling-air screen
(E/9) and remove dirt and plants sucked
in.
l
Clean the fan housing at least once
per year, preferably before the season
starts. Take off fan case and clean cool-
ing fins on cylinder and cylinder head,
clean guide plates and cooling-air
screen, both serving for good air circu-
lation. For this purpose, contact your
professional AGRIA workshop.
Exhaust System
Check exhaust system (E/3) on a regu-
lar basis for plant trash and clean, if nec-
essary.
Otherwise
W
Danger of fire
Check the exhaust system each time
before you take the two-wheel tractor
into operation.
Foamed pre-
liminary filter
Air filter
cap
Paper
filter element
Air Filter
Clean air filter (D/1) after a maximum of
25 operating hours or at least after
3 months (in case of heavy dust
occurence even earlier).
l
Clean air filter and outside surround-
ing parts, take off air filter cap.
l
Carefully remove foamed preliminary
filter.
l
Loosen wing screws, remove paper
filter and slightly tap the element on a
smooth surface.
Do not use compressed air to blow
out dust. Do not treat with oil.
l
Wash foamed preliminary filter in de-
tergent and water (do not use petrol),
squeeze like a sponge (wrap in a cloth)
and dry thoroughly.
Do not soak foamed preliminary fil-
ter in oil.
l
Reposition paper filter element, fas-
ten with wing screw. Re-attach foamed
preliminary filter and close with air filter
cap.
Please note:
Do not wash paper filter element (only
tap out dust) and replace it after every
50 operating hours or at least once a
year.
Summary of Contents for 3900
Page 5: ...Edition 04 97 Two wheel tractor 3900 5 B A Designation of Parts Petrol Engine ...
Page 9: ...Edition 04 97 Two wheel tractor 3900 9 C Designation of Parts Diesel Engine B ...
Page 44: ...44 Two wheel tractor 3900 Edition 04 97 Notes ...
Page 60: ...60 Two wheel tractor 3900 Edition 04 97 Notes ...
Page 62: ...62 Two wheel tractor 3900 Edition 04 97 D E Designation of Parts Petrol Engine ...
Page 71: ...Edition 04 97 Two wheel tractor 3900 71 Notes ...