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It is important to check and make maintenance for protector so as to ensure operators' safety.
Periodical check and maintenance shall be made. A detail for check and maintenance is showed as
form 8.1
Form 8.1 Check and maintenance
Item
Contents
Means
Time
Check
Check for light curtain face
Confirmation of all passing, reflecting face
clean and no broken
Before operating
Confirmation of incepting
light (test every beams)
Block one by one beam of light curtain;
check if indication states are normal
Before operating
Check for protection
function
In entire protected slide travel (or ownward
strokes between 30 to 180 degrees, is set
cam switch for "no protection" in back-
way), block light curtain, the slide of press
should stop immediately
Before operating
Check for screws
Confirmation of all screws tightly fixed
Six months
Check for wiring terminates
Confirmation of all screws tightly fixed, and
all wiring well connected
Six months
Check for relay
Confirmation of relays tightly installed, well
contacts and normal operation
Six months
maintenance
Replace relays
Prize up stopper gear on the plastic tie
with the screw driver, release the tie,
remove the old relay and replace new then
re-tie tightly
More than life
Cleaning for light curtain
units
Clean with soft cotton yarn soaked water
or detergent, prohibit cleaning with organic
solvent
Implement based on
conditions
Replacing filters of sensor
If filter is broken, replace it immediately.
Unpack the end cover of sensor, pull out
the broken filter, insert the new one, and
then fix the end cover
Implement based on
conditions
Replacing mirror
If mirror is broken, replace it immediately.
Unpack the end cover of reflector, pull out
the broken mirror, insert the new one, and
then fix the end cover
Implement based on
conditions
Fix and replace screws
Fix loosen screws tightly, replace the
damaged
Implement based on
conditions
Inspection is needed before operation unless periodic inspection
Check them before operating, besides periodic inspection.
8.2 Check and Maintenance
