Brother FAX-545 Service Manual page 39

CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION
This chapter details procedures for disassembling and reassembling the machine together with
related notes. The disassembly order flow provided enables you to see at a glance the quickest
way to get to component(s) involved.
At the start of a disassembly job, you check the disassembly order flow that guides you through
a shortcut to the object components.
This chapter also covers screw tightening torques and lubrication points to which the specified
lubricants should be applied during reassembly jobs.
5.1 DISASSEMBLY/REASSEMBLY ..................................................................................... 5-1
Safety Precautions ....................................................................................................... 5-1
Tightening Torque ........................................................................................................ 5-2
Preparation .................................................................................................................. 5-3
How to Access the Object Component ....................................................................... 5-3
Disassembly Flowchart ............................................................................................... 5-4
5.1.1 Handset Mount* (Dummy Mount**), Hook Switch Actuator,
and Cover Open Sensor Actuator........................................................................ 5-5
5.1.2 Cover Stopper Link and Top Cover ASSY .......................................................... 5-7
5.1.3 Disassembly of the Top Cover ASSY (Separation roller gear 29,
paper chute ASSY, and top cover sub ASSY)..................................................... 5-9
5.1.4 Disassembly of the Paper Chute ASSY (Chute film, sheet feeder parts,
paper ejection roller ASSY, registration sensor actuator, lock bar & levers,
and platen) ......................................................................................................... 5-11
5.1.5 Disassembly of the Top Cover Sub ASSY (Paper separation roller,
document chute ASSY, document separation roller, ADF parts, white-level
reference film, control panel ASSY, and document rear sensor actuator) ........ 5-16
5.1.6 Disassembly of the Control Panel ASSY (Control panel PCB, microphone*,
rubber keypad, control panel, and LCD)............................................................ 5-21
5.1.7 Sensor PCB ....................................................................................................... 5-25
5.1.8 Recording Head ASSY ...................................................................................... 5-26
5.1.9 Bottom Plate ...................................................................................................... 5-27
5.1.10 Drive Unit and Motor.......................................................................................... 5-28
5.1.11 Document Ejection Roller and Pinch Rollers..................................................... 5-31
5.1.12 CIS Unit and Battery ASSY* .............................................................................. 5-32
5.1.13 NCU/PS Enclosure, NCU PCB, Power Supply PCB, and Main PCB................ 5-35
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