Chapter Iii Disassembly And Reassembly; Safety Precautions; Tightning Torque Lists - Brother TD-2020 Service Manual

CHAPTER III DISASSEMBLY AND REASSEMBLY

3.1 SAFETY PRECAUTIONS

(1) The disassembly or reassembly work should be carried on a grounded antistatic
sheet. Otherwise, the LSIs and electronic parts may be damaged due to the
electricity charged in your body.
(2) When transporting PCBs, be sure to wrap them in conductive sheets such as
aluminum foil.
(3) When using soldering irons and other heat-generating tools, take care not to
damage the resin parts such as wires, PCBs, and covers.
(4) Be careful not to lose small parts such as screws, washers, or other parts
removed for parts replacement.
(5) Tighten screws according to the torque listed below.
(6) Lubricate according to the lubrication points list.

3.2 TIGHTNING TORQUE LISTS

Location
Bottom cover B
Bottom cover A
Front cover
Main PCB ASSY
PCB holder
Roll cover outer A
Roll cover outer B
Roll cover front
Roll cover clear
Panel PCB ASSY
Tear bar
Head holder B
Sensor holder B
Upper cover
SW hold plate
Adjuster gear
Guide holder (2 sheets)
Roller guide roller (2 items)
Adjuster lock
Tape feed motor ASSY
Platen bushing L/R
Main chassis ASSY
Main chassis R
Front cover B
Screw type
Taptite bind B M2.6X6
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X6
Taptite bind B M2.6X6
Taptite bind B M2.6X8
Taptite bind B M2.6X8
Taptite bind B M2.6X6
Taptite cup B M2.6X6
PStaite M2X4 CH
Taptite cup B M2.6X6
Taptite cup B M2.6X6
Screw bind M3X4
Screw bind M2X3
Screw bind M3X4
Screw bind M3X4
Screw bind M3X4
III - 1
Tightening torque
Q'ty
N•m (kgf•cm)
4 0.294 ± 0.049 (3.0 ± 0.5)
4 0.343 ± 0.049 (3.5 ± 0.5)
2 0.343 ± 0.049 (3.5 ± 0.5)
5 0.343 ± 0.049 (3.5 ± 0.5)
4 0.343 ± 0.049 (3.5 ± 0.5)
4 0.343 ± 0.049 (3.5 ± 0.5)
4 0.343 ± 0.049 (3.5 ± 0.5)
2 0.343 ± 0.049 (3.5 ± 0.5)
4 0.343 ± 0.049 (3.5 ± 0.5)
2 0.343 ± 0.049 (3.5 ± 0.5)
2 0.294 ± 0.049 (3.0 ± 0.5)
4 0.294 ± 0.049 (3.0 ± 0.5)
2 0.343 ± 0.049 (3.5 ± 0.5)
4 0.343 ± 0.049 (3.5 ± 0.5)
1 0.294 ± 0.049 (3.0 ± 0.5)
1 0.294 ± 0.049 (3.0 ± 0.5)
5 0.172 ± 0.049 (1.75 ± 0.5)
2 0.294 ± 0.049 (3.0 ± 0.5)
2 0.294 ± 0.049 (3.0 ± 0.5)
2 0.588 ± 0.098 (6.0 ± 1.0)
2 0.098 ± 0.025 (1.0 ± 0.25)
2 0.588 ± 0.098 (6.0 ± 1.0)
2 0.588 ± 0.098 (6.0 ± 1.0)
2 0.588 ± 0.098 (6.0 ± 1.0)