Read Sharp MX-FN27 Service Manual online
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.
can disable the machine.
When performing cleaning using organic solvent such as alcohol,
be sure to check that the component of solvent is vaporized com-
pletely before assembling.
be sure to check that the component of solvent is vaporized com-
pletely 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
reinstall.
– 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.
the right 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.
the 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.
apply too much force when tightening the screw.
The recommended torque value is shown below as a reference value.
3. Identification method for N model series
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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