Brother PT-MT Service Manual - Page 16
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CHAPTER III DISASSEMBLY & REASSEMBLY
Safety Precautions
(1) You should carry out disassembly & reassembly jobs on an anti-static sheet
grounded correctly. Otherwise, the LSI and other electronic devices will 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 screws, washers, or other parts removed for parts replacement.
(5) Tighten screws to the torque values listed below.
Tightening Torque List
Location
Bottom cover
Chassis ASSY
Chassis ASSY (for DC motor) Screw, pan M1.7 x 2.5
Thermal head ASSY
Main PCB
Lens
Select dial
Screw type
Taptite, bind B M2.6 x 6
Taptite, bind B M2.6 x 4
Screw, cup M2.6 x 4
Taptite, bind B M2.6 x 4
Taptite, bind B M2.6 x 4
Taptite, bind B M2.6 x 4
III - 1
Q'ty
Tightening torque
2
0.39 N•m (4 kgf•cm)
3
0.196 N•m (2 kgf•cm)
2
0.10 to 0.196 N•m (1 to 2 kgf•cm)
1
0.49 N•m (5 kgf•cm)
2
0.196 N•m (2 kgf•cm )
2
0.196 N•m (2 kgf•cm )
3
0.196 N•m (2 kgf•cm )