Hitachi H90SE, Технические данные и руководство по обслуживанию

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9-1-2. Reassembly
Reassembly can be accomplished by following the disassembly procedure in reverse. However, special attention
should be given to the following items.
Reassembly of the Crank Shaft [84] section
Mount the Bearing Boss [80], Oil Seal [82] and Ball Bearing 6305VVCM [78], and Distance Ring (C) [77] onto
the Crank Shaft [84], and secure the Bearing Boss [80] to the Inner Cover [76] with the four Seal Lock Hex.
Socket Hd. Bolts M8 x 18 [81]. Support the inner race of the Ball Bearing 6305VVCM [78] with a J-127-5
Sleeve (Special Repair Tool, Part No. 970899), and press fit the Crank Shaft [84] into the Ball Bearing
6305VVCM [78]. Then, insert Distance Ring (B) [65] and the two Feather Keys 4 x 4 x 12 [83] onto the Crank
Shaft [84] and press fit the Final Gear [64].
Finally, press fit the Ball Bearing 6204VVCM [62] and Distance Ring (A) [63] onto the Crank Shaft [84].
Reassembly of the Armature Ass'y [99]
Press fit the Ball Bearing 6203DDCM [73] into the Inner Cover [76], cover it with Bearing Cover (A) [72], and
secure the assembly with the three Seal Lock Hex. Socket Hd. Bolts M5 x 12 [71].
Reassembly of the Striker [19]
Push the Striker [19] into the inside of the Piston [20] until a 'hissing' sound is heard. When the hissing sound
is heard, the Striker is properly inserted in the Piston. (The hissing is the sound of the compressed air
escaping from the Piston when the Striker reaches the respiratory chambers within the Piston.) In this state,
align the piston pin inserting holes of the Piston [20] and Connecting Rod Ass'y [23], and insert the Piston Pin
[21]. Finally, mount the O-Ring (P-46) [22] in the groove at the rear portion of the Piston [20].
Piston [20]
Fig. 17
Striker [19]
O-Ring [22]
Connecting Rod Ass'y [23]
Piston Pin [21]
Respiratory chambers