Sharp ER-04RP Service Manual page 27

. ..
"""". . . . . . . . .—. — . - ---
ER-04RP
[Disassembly procedure]
1. Remove the holding screw (5-12).
2. Disengage the cord from the cord holder pawl.
3. Unsoiled the cord from the connector PCB SA (5-2) using the
soldering pencil.
[Reassembly procedure]
Reverse the disassembly procedure.
However, the following adjustment is necessary.
ADJUSTMENT
As shown in the figure below, move the PF coil in directions shown by
arrows + and - to adjust the clearance (B) between the core of the
PF coil SA and the PF trigger lever to 0.1- 0.2mm with the tiP of the
PF trigger lever overriding the clutch cam as shown by (A).
Clutch cam
Core of PF coil SA
Q_,@
\
o
0
0
%
(A)-
"~
0.1-O.2dm
%
/
PF trigger lever
10-3-5. Disassembly/reassembly of drive gear
(Refer to drawing for D type)
Tools
Normal screwdriver (small size)
Tweezers
IDisassembly/reassembly flow]
-
Reassembly
[Disassembly procedure]
1. Remove the E-ring (4-18).
2. Disengage the hook (frame
(4-17), and remove the PF
spring (4-17).
3. Remove the E-ring (4-27).
side) of the PF trigger lever spring
trigger lever (4-16) and PF trigger
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Remove the ribbon reset cam (4-26).
Remove the ribbon reset cam drive gear (4-25).
Remove the E-ring (4-14).
Remove the clutch gear BK (4-12).
Remove the clutch cam (4-11).
Remove the clutch spring (4-13) by rotating it counterclockwise.
Pry off the PF reduction gear (4-15) with the normal screwdriver.
NOTE: Take care not to ruin the teeth of the PF reduction gear.
Remove the PF drive gear (4-10).
Remove the drive gear (4-5), PF slip gear (4-6), and PF slip
spring (4-7).
Remove the reduction gear (4-4).
Remove the motor pinion (4-3).
NOTE: The motor pinion is glued to the motor shaft. Remove
the motor pinion taking care so as not to bend the motor
shaft or ruin the teeth of the motor pinion.
[Reassembly procedure]
Reverse the reassembly procedure.
However, the following adjustments are necessary.
NOTE 1: Check the backlash amount for engagement of the gears.
NOTE 2: Use screw lock paint to fix the motor pinion in place.
ADJUSTMENT 1I
The following adjustment must be made when reassembling the rib-
bon reset cam. Adjust and assemble in accordance with the following
procedure.
As shown in the figure below, move the carriage to the extreme
left end of the frame BK by manually rotating the clutch gear.
In this situation, adjust the position so that the "R" cut portion on
the pulley flange faces to the right.
Carriage
Frame
@
t
portion
\
Pulley flange
With the position adjusted in the above step o, reassemble the
ribbon reset cam so that the registration mark (0) on the cam
faces the center of the reduction pivot.
Reduction pivot center
Ribbon reset cam registration
\
/
-25-