Hitachi Koki RB85E Manual Del Propietário página 11

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RB85E
Fuel filter (Fig. 3-3, 3B)
Drain all fuel from fuel tank and pull fuel filter line
from tank. Pull filter element out of holder
assembly and rinse element in warm water with
detergent.
Rinse thoroughly until all traces of detergent are
eliminated. Squeeze, do not wring, away excess
water and allow element to air dry.
NOTE!
If element is hard due to excessive dirt buildup,
replace it.
GB-10
Fig. 3-3
Fig. 3-5
Fig. 3-6B
Spark plug (Fig. 3-4)
The spark plug condition is influenced by:
An incorrect carburetor setting.
Wrong fuel mixture (too much oil in the gasoline)
A dirty air filter.
Hard running conditions (such as cold weather).
These factors cause deposits on the spark plug
electrodes, which may result in malfunction and
starting difficulties. If the engine is low on power,
difficult to start or runs poorly at idling speed,
always check the spark plug first. If the spark
plug is dirty, clean it and check the electrode gap.
Re-adjust if necessary. The correct gap is 0.6
mm. The spark plug should be replaced after
about 100 operation hours or earlier if the
electrodes are badly eroded.
NOTE!
In some areas, local law requires using a resistor
spark plug to suppress ignition signals. If this
machine was originally equipped with resistor
spark plug, use same type of spark plug for
replacement.
Fig. 3-3B
RB85E
Fig. 3-5C
Muffler (Fig. 3-5, 5C)
Remove the muffler and clean out any excess
carbon from the exhaust port or muffler inlet every
100 hours of operation.
Cylinder (Engine cooling) (Fig. 3-6, 6B)
The engine is air cooled, and air must circulate
freely around engine and over cooling fins on
cylinder head to prevent overheating.
Every 100 operating hours, or once a year
(more often if conditions require), clean fins and
external surfaces of engine of dust, dirt and oil
deposits which can contribute to improper cooling.
NOTE!
Do not operate engine with engine shroud or
muffler guard removed as this will cause
overheating and engine damage.
Fig. 3-4
Fig. 3-6

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