Hitachi NR 90AE (S), Технические данные и руководство по обслуживанию, Страница: 25 / 42

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Cylinder Plate [17]
Body Ass'y [24]
Valve Rubber [14]
(2) Disassembly and reassembly of the Cylinder [15] , Piston [13] , Piston Bumper [30] , etc.
(See Fig. 14.)
(a) Disassembly
Remove the Exhaust Cover [5] as described in item (1). Now, the Cylinder [15] , Cylinder Plate [17] , Piston
[13] , Piston Bumper [30] , etc. can be taken out.
(b) Reassembly
Disassembly procedures should be followed in the reverse order. Note the following points.
Apply designated grease to the Piston O-ring [12] and the internal side of the Cylinder [15] .
Apply designated grease to the O-ring (I.D 94.6) [18] and the O-ring (I.D 59.6) [16] , and then install them.
Fig. 14 Disassembly and reassembly of the cylinder, piston, piston bumper, etc.
Cylinder Ring [19]
Cylinder [15]
O-ring (I.D 59.6) [16]
O-ring (I.D 94.6) [18]
Piston Bumper [30]
Piston O-ring [12]
Piston [13]
Face the thick end downward.