HUALIAN FRM-980I, Руководство пользователя

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dust.
3.The main control circuit board is
damaged.
4.The clutch pin is off or damaged.
5.Electromagnetic clutch wire is
broken. 4.Repair the round pin.
5.Repair the clutch.
Printing wheel cannot
stop
1.The sensor
（
groove optical
coupling
）
damaged, displaced, or
the surface gathered dust.
2. The main control circuit board is
damaged.
1.Replace or install the positive sensor
(groove optical coupling) or remove dirt
from the surface of the photocoupler.
2.Check the circuit board, and replace the
components.
Solid-ink heating block
or printing wheel does
not heat
1, electrical heated tube or wire is
damaged.
2.Heating circuit board is damaged
3, Potentiometer on the knob is
damaged.
4.Carbon brush holder is displaced.
5.Carbon brush holder is damaged. 1.Replace the heater.
2.Replace the circuit board.
3.Replace the potentiometer.
4.Adjust and tighten the nut.
5.Replacement.
The temperature of
solid-ink heating block is
out of control
Temperature control relay is
damaged.
Check and replace components.
The heating position is
out of control
1. Loose screws of printing wheel.
2. The main control circuit board is
damaged. 1.Fasten screws
2.Check and replace components.
The noise in the gear
box increases
The lubricating oil of worm gear
box needs to be changed Use Great Wall 000# super pressure
lithium grease
7.2 Motor maintenance
（
1
）
Stop and check the machine when any abnormal occurs to motor, do not use the machine until
problem is solved.
（
2
）
Dedust and clean motor regularly. Ethyl alcohol, gasoline and liquid with benzene chemicals should
be avoided, otherwise it will affect the paint of motor cover.
（
3
）
Carbon brush is designed to be used 2500 hours continuously and commutator 2500 hours. The
toner on the internal of motor and surface of commutator should be cleaned every 120 hours after use.
The commutator should be wiped by ethyl alcohol. Replace carbon brush and commutator immediately
when they were worn out.
（
4
）
The motor should be used indoors under normal atmospheric temperature to avoid friction,
exposure to rain, and chemical corrosion, etc.. Please contact the supplier or manufacturer first if the
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