Brother ADS-2000 Service Manual page 51

CHAPTER 3 DISASSEMBLY/REASSEMBLY
This chapter describes procedures for disassembling and reassembling the machine with
relates notes. The provided disassembly order flow enables you to take in the disassembly
procedure of related part at a glance.
At the start of disassembling, you can check the disassembly order flow which guides you
through a shortcut to get to the part.
This chapter also covers screw tightening torques and lubrication points where the specified
lubrication should be applied when the machine is assembled.
1. SAFETY PRECAUTIONS ............................................................................................. 3-1
2. PACKING ......................................................................................................................3-2
3. SCREW CATALOGUE .................................................................................................. 3-3
4. SCREW TORQUE LIST ................................................................................................ 3-4
5. LUBRICATION .............................................................................................................. 3-5
6. OVERVIEW OF GEARS................................................................................................ 3-6
7. HARNESS ROUTING.................................................................................................... 3-7
8. DISASSEMBLY FLOW CHART .................................................................................. 3-10
9. DISASSEMBLY PROCEDURE ................................................................................... 3-11
9.1 Preparation ................................................................................................................3-11
9.2 Separation pad ASSY ............................................................................................... 3-12
9.3 Pick-up roller ASSY .................................................................................................. 3-14
9.4 Output tray ................................................................................................................ 3-15
9.5 Side cover L .............................................................................................................. 3-16
9.6 Side cover R ............................................................................................................. 3-16
9.7 Main PCB ASSY ....................................................................................................... 3-17
9.8 USB host PCB ASSY................................................................................................ 3-19
9.9 Front cover L/R ......................................................................................................... 3-20
9.10 Panel ASSY .............................................................................................................. 3-21
9.11 Panel PCB ASSY / Rubber key / Top cover sensor / Top cover actuator ................. 3-23
9.12 Document detection sensor PCB / Document detection actuator /
Document scanning position sensor PCB /
Document scanning position actuator /
Double feeding sensor (Sent) / Separation pad ASSY ............................................. 3-24
9.13 Second side CIS unit ................................................................................................ 3-29
9.14 Top cover / Document guide LS / Document guide RS............................................. 3-30
9.15 Back cover S............................................................................................................. 3-31
9.16 Back cover ................................................................................................................ 3-32
9.17 Power supply PCB ASSY ......................................................................................... 3-33
9.18 Main motor ................................................................................................................ 3-36
9.19 Front cover sensor .................................................................................................... 3-37
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