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Disassembly/Reassembly Guide; Disassembly - Hitachi CM 4SB2 Technical Data And Service Manual

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8. DISASSEMBLY/REASSEMBLY GUIDE

Disassembly and reassembly procedures which require particular attention are described below. The [Bold]
numbers in the descriptions below correspond to the item numbers in the Parts List and the exploded assembly
diagram for the Model CM 4SB2. Be sure to unplug the Model CM 4SB2 from the outlet before disassembly or
replacement of the diamond wheel.

8-1. Disassembly

(1) Removal of the diamond wheel (Fig. 1)
Loosen the Bolt (Left-Hand) M7 x 15 [54] using the Wrench (Hex. Socket 10/19.2 mm) [501] and the Box
Wrench 10 mm [502] (standard accessories) then remove the diamond wheel. (The diamond wheel is
secured with the left-hand thread bolt.)
(2) Disassembly of the Housing Ass'y [13] (Fig. 2)
1 Loosen the two Tapping Screws (W/Flange) D4 x 20 (Black) [14] to remove the Tail Cover [18] then
remove the two Brush Caps [31] and two Carbon Brushes (1 Pair) [30].
2 Loosen the three Machine Screws (W/Washers) M5 x 25 [17] to remove the Housing Ass'y [13] and
Armature [46] from the Gear Cover [41]. Then pull the Fan Guide [1] out of the Housing Ass'y [13]
[502]
[54]
[41]
[46]
[501]
Fig. 1
[13]
[1]
Fig. 2
--- 10 ---
[14]
[17]
[18]
[31]
[30]

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