Hitachi DS 12DVB2, Технические данные и руководство по обслуживанию, Страница: 16 / 29

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(4) Disassembly of the gear unit
(a) Remove the Cap [4] from the Front Case [9] . Take care not to remove the Nut [6] from the Front Case [9]
in this operation.
(b) Turn the Motor [28] counterclockwise when viewed from the rear and remove it from the Rear Case [17] .
(c) Remove the Shift Arm [19] from the Rear Case [17] , and remove the Shift Knob [38] from the Shift Arm [19] .
(d) Remove the Screw Set D3 x 12 (4 pcs.) [18] connecting the Front Case [9] and the Rear Case [17] .
(e) Remove Washer (A) [16] , Planet Gear (C) Set (3 pcs.) [15] , Carrier [14] , Ring Gear [13] , Lock Ring [12] ,
six Steel Balls D5 [11] and six Rollers [10] in sequence from the Front Case [9] . Take care not to lose the
six Steel Balls D5 [11] and the six Rollers [10] in this operation.
(5) Removal of the Spring [7] and the Thrust Washer [8]
Turn the Nut [6] counterclockwise and remove it from the Front Case [9] , then remove the Spring [7] and
Thrust Washer [8] from the Front Case [9] .
(Note) Do not disassemble the Front Case [9] .
(6) Disassembly of the power supply unit
(Note) Do not remove the fin secured to the DC-Speed Control Switch [35] with a screw.
Remove the two Machine Screws (W/Sp. Washer) M4 x 6 or 8 [31] , and take the Motor [28] and the Motor
Spacer [27] apart. Disconnect the Internal Wires [33] and [34] from the Motor [28] with a soldering iron, then
disconnect them from the DC-Speed Control Switch [35] with a soldering iron in the same manner.