Konica Minolta 0902, Service Manual

Page: 188 / 302

Chapter 5 Disassembly and Assembly
5-68
8
Install the fixing shaft knob that was removed in
Step 4 .
•
1 screw (M3 x 6)
Install it with the textured surface down.
9
See " Installation Procedures (Page 5-14)" in "5.2.5 Removing/Installing the Optical Unit" to
install the optical unit.
Now, you have finished with the procedures to replace the simple fixing unit.
5.5.3 Replacing the Encoder/Wires
This section describes the instructions on how to replace the encoder.
The same procedures as below can be used to replace the wire, excluding the items on installing and
removing the encoder.
Work outline
Listed below are the number of people and the rough standard of work hours required for performing the
works described in this section.
Requirements
Shown below are the tools requiring to be prepared in addition to the standard tools before performing the
works in this section.
1
See " Removal Procedures (Page 5-11)" in "5.2.5 Removing/Installing the Optical Unit" to
remove the optical unit.
Place the removed optical unit in a level and stable place with the light condensing unit up.
2
See " Removal Procedures (Page 5-10)" in "5.2.4 Removing/Installing the Second Front
Door" to remove the second font door.
Caution
•
Be sure to turn off the power supply circuit breaker and unplug the power cable from the
equipment whenever you disassemble/assemble the equipment.
•
Be careful when handling the optical unit not to send a shock wave to it, that is composed
of precision parts.
First Front Back Side
Caution
Cover the LM guide and the magnet
shaft of the subscan unit using a rag
or cardboard
Performance of the equipment might be
affected if the parts are hit or dropped on
the LM guide or the magnet shaft. Cover
the LM guide and magnet shaft with
something that will absorb the shock when
disassembling or assembling the parts
inside the equipment.
Personnel
Number
Work Hours (steps 3 to 29)
1
No. Tool No. Tool
1 Vinyl sheet (used for covering the light
condensing unit to screen out dust on it) 2 Acoustic wave tension meter