Agria 3100 - Fuel System

30 Single-wheel power hoe 3100 Edition 03.95
5. Maintenance
Fuel System
l Each time you maintain the machine,
check fuel hose, fuel tank, and carburetor
for leakages. Repair, if necessary.
l Replace fuel hoses after every 2
years, immediately exchange leaking
hoses.
l Always fill correct stoichiometric ra-
tio of fuel.
l If engine received too much fuel
(flooded), move speed control lever to
“max” and crank engine with recoil starter
until engine starts. Or remove spark plug
and clean and dry. With spark plug re-
moved, crank engine a few times with
recoil starter. Screw spark plug back in
and re-start engine.
Cleaning Cylinder Head
After every 400 hours of operation take
off cylinder head and remove carbon de-
posits on cylinder head and exhaust tun-
nel with a steel brush. Afterwards, clean
with soft paint brush. Exchange head
gasket and reassemble to cylinder head.
Tighten cylinder head screws in turn at
22 Nm. For this purpose, contact your
professional AGRIA workshop.
Carburetor Settings
Changes in fuel, temperature, height or
strain can require slight re-adjustments
of carburetor settings. Only let engine run
with air filter and air filter pot mounted.
Idling Speed
Always ensure that idling engine speed
is adjusted correctly. At low speeds, the
engine is supposed to run smoothly, with
speed control lever at stop in idling
speed.
For basic tuning, adjust the slide valve
adjusting screw (3) on the slide
carburetor. For this purpose, set the throt-
tle control cable free of play by turning
the adjusting screw on carburetor.
For fine tuning, adjust the air control
screw (2). Adjust only while the engine
is still warm from operation (also refer to
“Specifications”). For these adjust-
ments, contact your professional
AGRIA workshop.
Exhaust
l Constantly check exhaust system
(A/15) for plant trash and clean, if nec-
essary. Otherwise
W
danger of fire!
Check before each operation.
l Check exhaust after every 200 oper-
ating hours for oil carbon and, if neces-
sary, clean or burn out.
For this purpose, contact your profes-
sional AGRIA workshop.
1 Carburetor –
tickler
2 Air control
screw
3 Slide valve
adjusting screw