9
UP 300 Service Manual
Failure
Cause
Solution
Remark
⚫
Initialization can be
done normally, but
abnormal sound is
caused by slight friction
of the faulty axis during
initialization and
printing
➢
Fault axis lacks
lubrication
If it is Y/X/Z axis, check if there is any jam or dry
noise; if yes, lubricate the fault axis bar with
industrial grade lubricating oil directly
If it is Z-axis, remove the rear panel first, and
then apply the industrial grade lubricating oil
evenly to the screw motor
➢
Y axis abnormal
sound
Turn off the power, manually pull the Y-axis
nozzle holder, and check if the Y-axis motor
pulley is loose
Y-axis light bars not parallel, too tight
➢
X axis light bar
abnormal sound
Turn off the power, manually pull the Y-axis, and
check if the X-axis has obvious blackening or
axial scratches
Remove and replace X-
axis light bar
It is difficult to
replace Y-axis
linear bearing; it
is recommended
to replace the Y-
axis assembly
➢
X-axis pulley
abnormal sound
Turn off the power supply and manually pull the
Y-axis to check if the X-axis motor pulley is loose
Place the belts on both sides of the pulley, and
pull the Y-axis back and forth five times to check
if the belt has obvious displacement and wear
➢
Z axis abnormal
sound
Check if the 26P color cable with black net under
the platform falls off
Failure 04:
A certain shaft has slight abnormal sound during
initialization, but initialization can be done
