Hitachi Koki Tanaka TEA-500 Mode D'emploi page 11

NOTE:
If engine does not start, repeat procedures from 2 to 5.
6) After starting the engine, pull the throttle lever to release lock
button.
Then, allow the engine about 2-3 minutes to warm up before
subjecting it to any load.
NOTE:
To accelerate the engine both throttle levers must be pulled
at the same time. As soon as one operator releases throttle
lever, it decelerates engine. (This is normal condition)
CAUTION:
It is not recommended that the cable adjuster be touched
as it is factory adjusted.
5. Carburetor adjustment (Fig. 6)
WARNING!
Never start the engine without the complete clutch cover.
Otherwise the clutch can come loose and cause personal
injuries.
In the carburetor, fuel is mixed with air. When the engine is test run
at the factory, the carburetor is adjusted. A further adjustment may
be required, according to climate and altitude. The carburetor has
one adjustment possibility:
T = Idle speed adjustment screw.
Idle speed adjustment (T)
Check that the air filter is clean. When the idle speed is correct, the
cutting attachment will not rotate. If adjustment is required, close
(clockwise) the T-screw, with the engine running, until the cutting
attachment starts to rotate. Open (counter-clockwise) the screw
until the cutting attachment stops. You have reached the correct
idle speed when the engine runs smoothly in all positions well
below the rpm when the cutting attachment starts to rotate. If the
bit still rotates after idle speed adjustment, contact Tanaka dealer.
(T) Idle adjusting screw
(3) Carburetor
WARNING!
When the engine is idling the cutting attachment must under
no circumstances rotate.
NOTE!
Some models sold areas with strict exhaust emission
regulation do not have high and low speed carburetor
adjustments. Such adjustments may allow the engine to be
operated outside of their emission compliance limits. For
these models, the only carburetor adjustment is idle speed.
For models that equipped with low and high speed
adjustments; carburetors are pre set at the factory
Minor adjustments may optimize performance based on
climate, altitude, etc. Never turn the adjustment screws in
increments greater than 90 degrees, as engine damage can
result from incorrect adjustment If you are not familiar with
type of adjustment-assistance Tanaka dealer.
6. Drilling
1) Both operators must hold the handle firmly with both hands and
stand firmly on solid ground so that you may not be swung by
the unit. (Fig. 5)
2) Locate the edge of auger right on the spot to dig and then drive
the auger at full throttle for digging. This is an easy job thanks
to the built-in centrifugal clutch. (Fig. 5)
3) Raise auger slightly after every few inches of digging to relieve
pressure and clean out the hole.
4) The clutch is made to slip when the auger is overloaded. When
this happens, raise the auger slightly to ease load.
WARNING!
While drilling, the auger may twist suddenly and forcefully if it
contacts large rocks, roots, or other hidden obstacles.
Release throttle trigger immediately, and lift auger out of hole.
Clear the obstacles to prevent damage, and then resume
drilling.
5) When abnormal vibration or noise is generated, stop the engine
and inspect the unit.
CAUTION:
Since TEA-500 is designed as a TWO-PERSON auger, never
attempt to make auger work with only one throttle lever
control.
6) When auger is stuck while digging, and hard to pull out from
ground, stop engine and lock the auger by the lock pin which
may make the job easier. (Fig. 8)
(4) Lock pin
(5) Lock pin handle
(The lock pin setting is made by turning powerhead slightiy while
pushing the pin. Then twist the pin handle clockwise to lock.)
7. Stopping
1) One or both of the two operators release throttle lever gradually
to an idle position, then turn off stop switch or button. (M.Parts)
NOTE:
In case of an emergency, just turn off stop switch immediately.
2) Close fuel cock and drain fuel system for prolonged storage.
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