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MX-FN27, MX-PN14 NOTE FOR SERVICING – i
MX-FN27, MX-PN14
Service Manual
NOTE FOR SERVICING
1. Precautions for servicing
At servicing, be sure to turn off the power source according to the
specified steps and disconnect the power plug.
specified steps and disconnect the power plug.
Do not turn off the power switch when downloading is under way.
Turning off the main power switch while downloading is under way can
disable the machine.
disable the machine.
When performing cleaning using organic solvent such as alcohol, be
sure to check that the component of solvent is vaporized completely
before assembling.
sure to check that the component of solvent is vaporized completely
before assembling.
– Disconnect the power plug to avoid any potential dangers during
assembling/disassembling works.
– If not specially instructed, reverse the order of disassembly to rein-
stall.
– Ensure to use the right screw type (length, diameter, etc.) at the right
position when assembling.
– To keep electric conduction, binding screws with washers are used
to attach the grounding wire and the varistor. Ensure to use the right
screw type when assembling.
screw type when assembling.
– Unless it is specially needed, do not operate the device with some
parts removed.
– Never remove the paint-locked screws when disassembling.
2. Screw tightening torque
For reduction in weight, thin plates are used in some parts of this
machine.
machine.
In the case of a screw hole with a triangle mark near it as shown in the
figure below, strongly tightening the screw may damage or deform the
screw hole.
figure below, strongly tightening the screw may damage or deform the
screw hole.
In the case of a screw hole with a triangle mark, take care not to apply
too much force when tightening the screw.
too much force when tightening the screw.
The recommended torque value is shown below as a reference value.
Type of Screws
RS tight
W Sems
Binding
TP
Fastened member
Metal
Resin
Metal
Resin
Metal
Resin
Metal
Resin
Tightening torque
(N*m)
(N*m)
M4
Approx. 1.6
Approx. 1.6
Approx. 1.6
Approx. 0.8
Approx. 1.6
Approx. 0.8
Approx. 1.6
Approx. 0.8
M3
Approx. 0.8
Approx. 0.8
Approx. 0.6
Approx. 0.6
Approx. 0.6
Approx. 0.6
Approx. 0.6
Approx. 0.6
Type of Screws
RS tight
W Sems
Binding
TP
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