Kemppi Procool 10 - Manual (Page 7)

Procool 10/0109 – 7 ©
COPYRIGHT KEMPPI OY
60 mm
4.1. PROTECTIVE OPERATIONS/OPERATION
DISTURBANCES
The Procool 10 unit is protected against dry operation with pressure guard (less than 1 bar)
which is on pressure side and against overheating (more than 65 °C) with sensor which is
placed into reservoir.
Disturbance situation
Pilot lamp H2 for pressure illuminates
during welding, welding and liquid circulation
are stopped
Pilot lamp H1 for temperature illuminates,
welding is stopped, but liquid circulation
is continued.
Pilot lamp H2 is flashing when there is normal
pause in liquid circulation
Reason
In system low liquid pressure during welding
Locate liquid leakage or operating disturbance
with switch S2. Check liquid amount.
Liquid overheating.
Wait until pilot lamp H1 is switched off.
Pressure guard is broken or there is pressure in
system.
Return hose of current
surface
level
Temperature sensor
Adjustment screw
Pressure guard
NOTE! If pilot lamp for pressure illuminates, liquid circulation operates from test switch S2.
Isn’t there any leakage, check disturbance as follows:
1.
Press on switch S2.
2. Check through filling opening of reservoir that liquid is returned to reservoir. If any
liquid doesn’t come, take contact with nearest KEMPPI authorised service repair shop.
3. Continue pressing on switch S2 and adjust freely adjustment screw of pressure guard
in such a way that pilot lamp H2 is only just switched off.
4. Release switch S2 and wait for approx. 10 s and check that pilot lamp H2 is not
flashing.
5. Still check by welding for approx. 20 s that there aren’t any more disturbances.
Daily check with test switch that liquid is also returned to reservoir.
4.2. CONTROL FUSE
On circuit card there is the fuse FA101 of 0,63 A, slow-blow.
A use same type and rating of fuse which is marked beside the fuse adapter
Damage caused by a wrong type fuse, is not covered by the guarantee.