Hitachi N 5024A, Технические данные и руководство по обслуживанию

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Fig. 6 When the trigger and the pushing lever are kept pressed
Air pressure is applied in the shaded areas in the
illustration, and each component is held in the
position illustrated.
The lower surface of the Piston < 4 > contacts
the Piston Bumper < 9 > and prevents air
leakage. If the upper surface of the Piston
Bumper < 9 > is damaged, some air will leak.
As there is no o-ring installed here, a
very small amount of air will leak from
the slight clearance between the
components.
If the operator's grip is
loosened, air will leak.