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Hitachi CH27EPAP Manual

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English
OPERATING PROCEDURES
Fuel (Fig. 7)
WARNING
○ This unit 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 fl ammable 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 Hitachi Authorized
Service Centers.
○ 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 fi ling half the amount of fuel, which is to be used.
Then add the whole amount of oil. Mix (shake) the fuel mixture. Add
the remaining amount of fuel.
Mix (shake) the fuel-mix thoroughly before fi lling the fuel tank.
Fueling
WARNING
○ Always shut off the engine before refueling.
○ Slowly open the fuel tank, when fi lling up with fuel, so that
possible over-pressure disappears.
○ Tighten the fuel cap carefully, after fueling.
○ Always move the trimmer at least 3 m from the fueling area
before starting.
○ Always wash any spilled fuel from clothing immediately with
soap.
○ Be sure to check for any fuel leakage 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
CAUTION
Before starting, make sure the cutting attachment does not
touch anything.
1. Set ignition switch (13) to ON position. (Fig. 8)
* Push priming bulb (15) several times so that fuel fl ows through
return pipe. (Fig. 9)
2. Set choke lever (16) to CLOSED position (A). (Fig. 10)
3. Pull recoil starter briskly, taking care to keep the handle in your
grasp and not allowing it to snap back. (Fig. 11)
4. When you hear the engine want to start, return choke lever to
RUN position (open) (B). Then pull recoil starter briskly again.
NOTE
If engine does not start, repeat procedures from 2 to 5.
5. Then allow the engine about 2 – 3 minutes to warm up before
subjecting it to any load. Failure to observe this may result in the
cutting blade not operating immediately.
Stopping (Fig. 12)
Decrease engine speed and run at an idle for a few minutes, then
turn off ignition switch (13).
For models with an engine ignition switch, keep the ignition switch
pressed until the engine comes to a complete stop.
CAUTION
If the engine does not stop even when the ignition switch (13) is
pressed, return the choke lever (16) to the CLOSE position (A).
WARNING
A cutting attachment can injure while it continues to spin after
the engine is stopped or power control is released. When the
unit is turned off , make sure the cutting attachment has stopped
before the unit is set down.
SAFE OPERATION
CAUTION
○ Always wear gloves during operation or maintenance.
○ Review the area to be trimmed. Look for hazards that could
contribute to unsafe conditions. DO NOT operate unit if any
wires (electrical line, telephone, cable, etc.) are closer than 10M
to any part of the operator or unit. (Fig. 13)
○ Spectator and fellow workers must be warned, and people and
animals prevented from coming nearer than 15M while the pole
hedge trimmer is in use. (Fig. 14)
○ Avoid all power lines. This unit is not insulated against electrical
current.
○ Always wear head protection with full face shield to help protect
against falling branches and debris.
WARNING
During operation, hold the unit fi rmly with both hands. A single
hand operation may cause serious injury.
Adjustment of blade angle (Fig. 15, 16)
WARNING
Always stop engine before making adjustments.
Never touch the blade when adjusting blade angle. Hold the
support handle (17) instead.
1. Stop the engine.
2. Loosen handle knob (18) slightly so that the support handle (17)
slides.
3. Adjust the blade angle to desired position by holding the support
handle (17).
4. Then, fi nger-tighten the handle knob (18) securely.
Trimming techniques
This unit is designed for trimming hedges and small branches.
Follow these tips for successful operation.
○ Plan cut carefully. Check direction branch will fall.
○ Long branches should be trimmed in several pieces.
○ Do not stand directly beneath branch being cut.
○ Apply a light cutting pressure.
○ Ease cutting pressure when nearing end of cut to maintain
control.
MAINTENANCE
MAINTENANCE, REPLACEMENT OR REPAIR OF THE EMISSION
CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY
NON-ROAD ENGINE REPAIR ESTABLISHMENT OR INDIVIDUAL.
MAKE SURE THAT ALL MAINTENANCE IS CARRIED OUT WITH
THE ENGINE STOPPED AND AFTER IT HAS BEEN ALLOWED TO
COOL DOWN.
Carburetor adjustment (Fig. 17)
WARNING
○ The cutting attachment may be spinning during carburetor
adjustments.
○ Never start the engine without the complete clutch cover and
tube assembled! 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 basically 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 fi lter 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
000Book_CH27EPAP(S)_WE.indb 8000Book_CH27EPAP(S)_WE.indb 8 2012/09/27 14:26:372012/09/27 14:26:37
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