2-15
Fig. 2-2-30
Idler arm assembly
pin
Take-up lever
Insert
R section
Guide hole of the
control plate guide
1.5mm hexagonal wrench
2.2.16 Loading Arm Gear (supply or take-up side) and
Loading Arm Gear Shaft
1. How to remove
(1) Remove the loading arm gear (supply side) by loosening
the screw (A). (See Fig. 2-2-32.)
(2) Remove the screw (B) and remove the torsion arm from
the pole base assembly (take-up side). (See Fig.2-2-32.)
(3) Turn the loading arm gear (take-up side) clockwise so that
the notch of the loading arm gear (take-up side) is in align-
ment with the projection of the loading arm gear shaft
and lift it.
Likewise, turn the loading arm counterclockwise so that
the notch is in alignment with the projection and remove
the loading arm gear (take-up side). (See Fig.2-2-32 and
Fig. 2-2-33.)
(4) When removing the loading arm gear shaft, be sure of
first removing the screw retaining the drum assembly (on
the back side of the loading arm gear shaft). Then remove
the screw (C) and remove the loading arm gear shaft by
sliding it.
Fig. 2-2-31
Section A
Hole A
Section B
Hole B
Section C
Control plate
Pole base assembly
(supply side)
Press-
fit
Section B
Hole B
Section C
Tension arm assembly
shaft
Section D
Section D
Section A
Hole A
2. How to install (Phase matching)
(1) Adjust the position of the idler arm assembly pin as indi-
cated in Fig.2-2-30 (to the left of center of the R section).
(2) Bring the guide hole of the take-up lever into alignment
with the hole at the control plate guide and fix the posi-
tion by inserting a 1.5 mm hexagonal wrench.
(3) Install the control plate so that the section A of the load-
ing arm gear shaft fits into the hole (A) of the control
plate, the section B of the control plate guide into the
hole (B), and the control plate comes under the section
C of the rotary encoder guide and the section D of the
loading arm gear shaft while press-fit the pole base
assmebly (supply side) as indicated by the arrow. It is
important that the tension arm assembly shaft is posi-
tioned closer toward you than the control plate. (See
Fig.2-2-31.)
(4) Make sure that the mark E of the control plate is in align-
ment with the mark
▼
of the loading arm gear shaft. (See
Fig.2-2-31.)
(5) Pull off the hexagonal wrench for positioning.
Guide marks
Screw(A)
Screw(C)
Notch
Pole base assembly
(supply side)
Pole base assembly
(take-up side)
Screw(B)
Torsion arm
Loading arm gear
(take-up side)
Loading arm gear
(supply side)
Loading arm gear shaft
Fig. 2-2-32
