Hitachi Koki TBC-290, Handling Instructions Manual

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GB-6
Operating procedures
Fuel (Fig. 18)
WARNING!
• The trimmer is equipped with a two-stroke engine. Always
run the engine on fuel, which is mixed with oil. Provide good
ventilation, when fueling or handling fuel.
• Fuel contains highly flammable and it is possible to get the
serious personal injury when inhaling or spilling on your body.
Always pay attention when handling fuel. Always have good
ventilation when handling fuel inside building.
Fuel
• Always use branded 89 octane unleaded gasoline.
• Use genuine two-cycle oil or use a mix between 25:1 to 50:1,
please consult the oil bottle for the ratio or Tanaka dealer.
• Only for the state of California at 50:1.
• If genuine oil is not available, use an anti-oxidant added quality
oil expressly labeled for air-cooled 2-cycle engine use (JASO FC
GRADE OIL or ISO EGC GRADE). Do not use BIA or TCW (2-stroke
water-cooling type) mixed oil.
• Never use multi-grade oil (10 W/30) or waste oil.
• Always mix fuel and oil in a separate clean container.
Always start by filling half the amount of gasoline, which is to be
used.
Then add the whole amount of oil. Mix (shake) the fuel mixture. Add
the remaining amount of gasoline.
Mix (shake) the fuel-mix thoroughly before filling the fuel tank.
Mixing amount of two-cycle oil and gasoline
Gasoline (Liter)
Two-cycle oil (ml)
Ratio 50:1 Ratio 25:1
0.5 10 20
1 20 40
2 40 80
4 80 160
Fueling
WARNING!
• Always shut off the engine before refueling.
• Slowly open the fuel tank, when filling up with fuel, so that
possible over-pressure disappears.
• Tighten the fuel cap carefully, after fueling.
• Always move the trimmer at least 3 m (10 ft.) from the fueling
area before starting.
• Always Wash any spilled fuel from clothing immediately with
soap.
• Be sure to check any fuel leaking after refueling.
Before fueling, clean the tank cap area carefully, to ensure that
no dirt falls into the tank. Make sure that the fuel is well mixed by
shaking the container, before fueling.
Starting (Fig. 19, 20, 21)
CAUTION!
Before starting, make sure the cutting attachment does not touch
anything.
1. Set ignition switch (1) to ON position. (Fig. 19, 20)
*Push priming bulb (4) several times so that fuel flows through the
bulb or return pipe. (If so equipped) (Fig. 21)
2. With the throttle trigger lockout (2) pressed (if so equipped), pull
throttle trigger and push throttle lock (3), then slowly release the
throttle trigger then throttle trigger lockout. This is will lock the
throttle in starting position.
3. Set choke lever to CLOSED position (5). (Fig. 21)
4. Pull recoil starter briskly, taking care to keep the handle in your
grasp and not allowing it to snap back.
5. When you hear the engine want to start, return choke lever to
RUN position (open). Then pull recoil starter briskly again.
NOTE!
If engine does not start, repeat procedures from 2 to 5.
6. After starting engine, pull throttle trigger to release throttle lock.
Then allow the engine about 2-3 minutes to warm up before
subjecting it to any load.
Cutting (Fig. 22, 23, 24, 25)
• When cutting, operate engine at over 6500 rpm. Extended time of
use at low rpm may wear out the clutch prematurely.
• Cut grass from right to left.
• Blade thrust may occur when the spinning blade contacts a solid
object in the critical area.
A dangerous reaction may occur causing the entire unit and
operator to be thrust violently. This reaction is called BLADE
THRUST. As a result, the operator may lose control of the unit
which may cause serious or fatal injury. Blade thrust is more likely
to occur in areas where it is difficult to see the material to be cut.
• Wear the harness as shown in the figure (if so equipped). The
blade turns counter-clockwise, therefore, be advised to operate
the unit from right to left for efficient cutting. Keep onlookers out
of working area at least 15 m (50 ft.).
NOTE!
Press the quick release button or pull emergency release flap (If so
equipped) in the event of emergency. (Fig. 24)
WARNING!
If cutting attachment should strike against stones or other
debris, stop the engine and make sure that the attachment
and related parts are undamaged. When grass or vines wrap
around attachment, stop engine and attachment and remove
them.
Stopping (Fig. 26)
• Decrease engine speed and run at an idle for a few minutes, then
turn off ignition switch.