Assembly Procedures; Operating Procedures - Hitachi DW25EF Manual Del Propietário

3. Assembly procedures

Assembling (Fig. 1-1, 1B, 1C)
1. Assemble the handle (1) witch is supplied
with the unit to the gear case.
2. Screw the chuck unit (2) into the drive shaft
(clockwise) after the collar B (3) has been
installed. (if so equipped)
3. Insert the drill bit to be used after opening the
chuck by the chuck handle (4) and tighten the
chuck by the handle.
NOTE!
If the keylesschuck is equipped, loosen chuck
and insert drill bit. Then tighten chuck by
turning clockwise till making "click" noise
(Fig.1-1D)
Selection of a Suitable Bit
Choose a drill bit according to material to be
drilled.
GB-6
Fig.1-1
Fig.1-1D

4. Operating procedures

Fuel (Fig. 2-1)
WARNING!
The power drill 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
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 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 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 filling
the fuel tank.
Fig.1-1B
Fig.2-1
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 unit at least 3 m (10 ft.)
from the fueling area before starting.
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.
Fig.1-1C