KaVo KEY Laser III 1243, Technician'S Instructions

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Technician's instructions KEY Laser III 1243
3 Maintenance work on KEY Laser 1243
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3.3 Spray system
Component Jobs to be done Exchange internal Parts to replace as needed
Input block and laser hose Disconnect air and water
connections, remove later
hose and clean spray pas‐
sage in input block.
Remove regulating screw
from laser hose and clean
spray passage of the laser
hose.
Exchange O-rings on the
input block and laser hose
as well as regulating
screw.
NOTE:
Protects the lens and sen‐
sor input from wear or con‐
tamination.
Check seal.
2 x O-rings ➊ of the
connection nipple
Mat. no. 0.200.6184
Regulating screw ➊
Mat. no. 0.574. 0902
O-ring ➊
Mat. no. 0.200.6024
3 x O-rings ➊
Mat. no. 0.200. 6120
2 x O-rings on the laser ho‐
se ➊ Mat. no. 0.200.6184
Plug-in connection
Mat. no. 0.211.1081
Plug nipple
Mat. no. 0.203.4001
Compressor
Note: in case of high humi‐
dity, shorten service inter‐
val (at least once a year)!
Check and clean input fil‐
ter/muffler.
Open and clean the valve
housing of the compres‐
sor.
Exchange membrane.
Exchange valve springs.
Exchange head seal.
Membrane ➋
Mat. no. 0.236. 0141
2 x valve springs ➋
Mat. no. 0.236. 0143
Head seal ➋
Mat. no. 0.236.0142
Muffler
Mat. no. 0.226.2236
System air filter Ls4 Open and clean filter.
Exchange filter insert
Replace internal O-ring
Replace O-ring connecti‐
ons
Filter Mat. no. 0.220.7917
➋
O-ring
Mat. no. 0.200.6108 ➋
2 x O-rings
Mat. no. 0.200.6016 ➋
Solenoid valve 230 Volt Y
28
Open and clean solenoid
valve.
Clean vent.
Exchange vent filter, ex‐
change sealing disks
Check switching function
and ventilation
Filter Mat. no. 0.210.3002
➋
2 x sealing disks
Mat. no. 0.222.5111 ➋
Solenoid valve
Mat. no. 0.221.6135
Check valve Ls37 Open and clean check val‐
ve
Replace O-ring
Replace O-ring
Exchange ball
2 x O-rings
Mat. no. 0.200.6016 ➋
O-ring
Mat. no. 0.200.6008 ➋
Ball Mat. no. 0.210.2132 ➋
Check valve Ls37 Exchange pressure spring
In case of strong corrosi‐
on, exchange check valve.
Pressure spring
Mat. no. 0.201.8138 ➋
Check valve
Mat. no. 0.210.2010
Control valve, cpl. for wa‐
ter Ls40/Ls42
Overpressure valve
Pressure regulator
Exchange overpressure
membrane
NOTE: Check P
max
1.0 bar!
Exchange membrane
Replace O-ring
Replace O-ring
Check pressure spring
Overpressure membrane
Mat. no. 0.210.1891 ➋
Membrane
Mat. no. 0.210.1961 ➋
O-ring
Mat. no. 0.236.0105 ➋
O-ring
Mat. no. 0.200.6026 ➋
Pressure spring
Mat. no. 0.201.8264
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