Hitachi WH 14DAF2, Технические данные и руководство по обслуживанию

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(2) Reassembly of Housing (A).(B) Set [31]
Mount housing (B) to housing (A), and secure them with the seven Tapping Screws (W/Flange) D4 x 20
(Black) [29] .
(3) Reassembly of the mechanical parts
(a) Put Washer (S) [15] onto the shaft of Spindle (B) [17] and mount the Hammer [11] containing the twenty-
eight Steel Balls D3 [12] , Washer (J) [13] and the Hammer Spring [14] to Spindle (B) [17] .
(b) Align the top of the cam groove on Spindle (B) [17] with the steel ball guide groove on the Hammer [11] as
illustrated in Fig. 9. Press down either of the raised faces of the Hammer [11] with a hand press to
compress the Hammer Spring [14] until the end surface of the hammer contacts the flange of Spindle (B)
[17] .
(c) Insert the two Steel Balls D5.556 [10] into the steel ball guide groove. Check that the steel balls are
properly inserted in the cam groove. Then release the hand press.
(d) Mount the hammer assembly onto the J-297 base for washer (S). With a hand press, push down the top of
Spindle (B) [17] to compress the Hammer Spring [14] . On this condition, mount the Stopper [16] onto the
spindle shaft and then release the hand press.
(e) Mount the Ring Gear [20] , Washer (E) [21] , Ball Bearing 6901VVCMPS2L [22] , Inner Cover [23] , Damper
[24] and the Retaining Ring [25] to the above reassembly. Furthermore, mount the other mechanical parts
and Anvil (B) [9] , then the Hammer Case [7] .
(4) Mounting Gear Box (B) Ass'y [1] to the housing
Coat Housing (A).(B) Set [31] with Silicone Rubber (THREEBOND 1211) as shown in Fig. 11. Mount Gear
Box (B) Ass'y [1] so that the pinion press-fitted in the Motor [26] properly meshes with the Idle Gear Set [18] .
Check that Anvil (B) [9] turns smoothly. If not, the gear meshes improperly. Check the meshing condition.
Tighten the four Tapping Screws (W/Sp. Washer) D4 x 40 [6] . Wipe the silicon rubber protruded from the
housing with a cloth.
Fig. 11
Housing (A). (B) Set [31]
Silicone rubber (Threebond 1211) coating area (hatching portion)
Housing (A). (B) Set [31]