4. Removal of the gear and pinion set
(1) Loosen the four Screws M4 x 12 [13] and remove the
Packing Gland [12] from the Gear Cover Ass'y [3].
(2) Remove the Retaining Ring for D11 Shaft [11] that secures
the Gear and Pinion Set [21] to the Spindle [15].
NOTE: When it is necessary to remove the Gear and
Pinion Set [21] from the Spindle [15], it is highly
recommended that the special repair tools
described
assembly on a sleeve that matches the
dimension of the Packing Gland [12] and push
down on the top of the Spindle [15] with a hand
press to remove the Gear and Pinion Set [21] as
shown in Fig. 1.
Reassembly can generally be conducted by reversing the disassembly procedure. However, special
attention should be given to the following items.
(1) Generously lubricate the teeth of the Gear and Pinion Set [21] with grease. Rub grease onto the teeth
with your fingers so that the grease reaches each tooth bottom. Note that under-lubricated Gear and
Pinion Set [21] may wear at a faster rate.
(2) When replacing the Armature [7] and the Ball Bearing 626ZZ [24] on the commutator side, press in on
the Dust Seal [23] while carefully noting its direction until the end face of the Dust Seal [23] contacts
the butting surface of the Armature [7], and check that the Dust Seal [23] cannot turn freely. (See Fig.
2.) The Dust Seal [23] is an important element for improved dust protection of the Ball Bearing 626ZZ
[24]. Be sure to replace it with a new one at every disassembly work. Fit the Rubber Bushing [25] into
the housing ball bearing chamber before installing the Armature [7]. (See Fig. 3.)
Fig. 2
(3) Before inserting the Stator [9] into the Housing [26], correctly connect the internal wires of the Stator
[9] to each part without entangling as shown in Fig. 4.
below
are
utilized.
Reassembly
Butting surface
Armature shaft
[24]
[23]
Fig. 1
Place
the
Fig. 3
Housing ball bearing chamber
About 4.5 mm
-2-
Push.
[15]
[21]
[12]
Sleeve
[25]
