Mitsubishi Electric PLK - G Series Technical Manual page 6

Enclosed units and accessories
Connect the electrical enclosed units and accessories only to the positions indicated in the manual.
Removal
(1) Always turn the power switch OFF and disconnect the plug from the socket (power supply line) before
removing the control box.
(2) Do not pull out the cord when disconnecting the plug. Always hold the plug receptacle when
disconnecting the plug.
(3) Note that a high voltage is applied inside the control panel, so always turn the power OFF and wait
at least ten minutes before opening the control box cover.
■ Maintenance, inspection and repairs
(1) Follow this manual when carrying out maintenance or inspections related to this control unit.
(2) This unit must be repaired, serviced and inspected only by a worker that has received special training.
(3) Always turn the power OFF before replacing the needle or bobbin, etc., on the head.
(4) Use genuine replacement parts for repairs and maintenance.
■ Other safety measures
(1) Keep fingers away from all moving machine parts (especially around the sewing machine needle,
etc.).
(2) Never drop the control unit, or place objects in the clearances.
(3) Do not operate the sewing machine without the protective parts such as the cover, or protection
devices such as the safety breaker.
(4) If any damage is observed in the control unit, if the unit does not operate correctly, or if the operation
is suspicious, always suspend operation. Only operate the machine after the supervisor has adjusted,
repaired or inspected the machine.
(5) The user must not make improvements or changes without instruction from Mitsubishi.
■ Caution displays and danger displays
(1)In this manual, the dangers and danger levels that arise with incorrect handling are classified using the
following displays.
(2)The meanings of these symbols are as follows.
* Always deliver this manual to the end user.
* Store this manual nearby where it can be referred to when necessary.
Warning
Caution
This symbol indicates that the
instructions must be followed.
This symbol indicates hot
temperature requiring caution.
This symbol indicates a
prohibited action.
The warning display shows that incorrect handling can lead to
death or serious injuries.
The caution display shows that incorrect handling can lead to
injuries or damages to your house, household goods, and
others.
[1] - 2
This symbol indicates an
electrical hazard or caution
(electric shock caution).
This symbol indicates that
ground wire connection is
required.