Precautions In Disassembly And Reassembly; Disassembly - Hitachi C 6MFA Technical Data And Service Manual

8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY

The procedures for disassembly and reassembly and certain precautions are described below.
The [Bold] numbers in the descriptions below correspond to the item numbers in the Parts List for all the models.
In disassembly or reassembly and also in other work, the Base Ass'y [63] should be carefully handled to prevent
the loss of the accuracy of each part, such as the flatness of the bottom surface.

8-1. Disassembly

Before disassembly, be sure to remove the saw blade to prevent damage to the cutting edge or
injuries by the saw blade.
(1) Removing the Lower Guard [6]
(a) Detach the hook of the Return Spring [7] from the Lower Guard [6].
(b) Loosen the Seal Lock Flat Hd. Screw M3 x 12 [10] securing the Bearing Cover [9], and remove the
Bearing Cover [9] and the Lower Guard [6].
(2) Removing the Bearing Holder [3]
Loosen the Seal Lock Flat Hd. Screw M5 x 12 [4], remove the Bearing Holder [3] together with the Spindle
and Gear Set [2].
(3) Removing the Spindle and Gear Set [2] (See Fig. 4.)
Hold the Bearing Holder [3] in a cylindrical jig with an inside
diameter of 42 mm to 43 mm (approx. 1-23/32"), and remove
it by pushing the end of the Spindle and Gear Set [2].
Important: A gear, once removed, cannot be used again
because it no longer engages. It must be
replaced by a new Spindle and Gear Set [2].
(4) Removing the Housing Ass'y [20]
(a) Loosen the Brush Caps [42] with a flat-blade screwdriver
and remove the Carbon Brushes [41].
(b) Loosen the Machine Screws (W/Washers) M5 x 45 (Black)
[17] securing the Housing Ass'y [20], and remove the
Housing Ass'y [20] and Gear Cover Ass'y [35].
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[2]
Fig. 4
[3]