Hitachi NV 65AF3, Технические данные и руководство по обслуживанию

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[Tools required]
4 mm hex. bar wrench
5 mm hex. bar wrench
(a) Disassembly (Fig. 12)
Loosen the Hex. Socket Hd. Bolt M6 x 12 [1]. Then the
Plate [2], Top Cover [3], Muffler [4] and Protector (A) [5]
can be removed.
Loosen the four Hex. Socket Hd. Bolts M5 x 25 [6] and
remove the Exhaust Cover [7]. Then the parts forming
the output section such as Piston (H) [20], Cylinder [17]
and Piston Bumper [25] can be taken out.
(b) Reassembly
Disassembly procedures should be followed in the
reverse order. Note the following points.
Apply SHELL TONNA S32 oil (standard accessory) to
the inside of the Piston Ring [19], Piston O-ring [18] and
Cylinder [17].
Apply grease to O-Ring (S-46) [15] and O-ring (1AP-48)
[16].
Fit the Cylinder [17] in the Cylinder Plate [14] facing the
stopper to the Piston Bumper [25] side. Mount the
Cylinder Plate [14] to the Body [23] aligning the stopper
groove of the Cylinder Plate [14] with the rib of the Body
[23].
10-2. Disassembly and Reassembly of the Output Section
(1) Disassembly and reassembly of the Exhaust Cover [7], Head Valve (A) [12], Piston (H) [20], Cylinder [17], etc.
(See Figs. 12, 13 and 14.)
Hex. Socket Hd.
Bolt M6 x 12 [1]
Plate [2]
Head Bumper [9]
Gasket (A) [8]
Protector (A) [5]
Top Cover [3]
Hex. Socket
Hd. Bolt M5 x 25 [6]
Head Value Spring [10]
Head Valve (A) [12]
O-Ring (P-22) [11]
O-Ring (S-70) [13]
Cylinder Plate [14]
O-Ring (S-46) [15]
O-Ring (1AP-48) [16]
Cylinder [17]
Face the stopper
of the Cylinder
Plate [14] to the
Piston Bumper
[25] side.
Fig. 12 Disassembly and reassembly of piston,
cylinder and exhaust cover
Rib of the Body [23]
Body [23]
Body [23]
Fig. 13
Fig. 14
Stopper of the
Cylinder Plate [14]
Muffler [4]
Exhaust Cover [7]
Piston O-Ring [18]
Piston Ring [19]
Piston (H) [20]
Piston Bumper [25]