Maintenance - dosatron SD25AL5 Manual De Uso

MAINTENANCE

Exchanging the 9V - 6LR61 backup battery
- Unscrew the four screws on the side
- Access the 9V - 6LR61 battery. Replace it
- Reassemble in the opposite direction
Recommendations for use
1 - When you use soluble products placed in solution it is recommended that the entire dosing assembly
be periodically disassembled (see § Cleaning of the suction valve, § Changing the dosing seals).
Rinse the dosing assembly elements thoroughly in clean water and reassemble them having previously
lubricated the seal identified with a silicone lubricant
2 - Before putting the DOSATRON back into service at the start of the usage period, remove the motor
piston and immerse it in warm water (< 40° C) for several hours. This operation enables deposits having
dried in the motor piston to be removed, see § Changing the motor piston.
Warning: The monitoring box must not be disassembled by an unauthorised person. For any
operation on the latter contact your distributor or DOSATRON.
Cleaning and reassembling of the two suction valves
ADVICE : Before assembling any dosing assembly it is recommended that the DOSATRON be put in
operation by suction of clean water in order to rinse the injection
system. This prevents any risk of contact with products that may be
found in the dosing assembly.
N.B. Wear protective goggles and gloves during any operation of this kind.
- Close the water inlet and reduce the pressure to zero.
- Unscrew the upper nut and disconnect the monitoring module from the
dosing assembly by pulling downwards.
- Push the monitoring module lid upwards and remove the hydraulic body
- Check the state of the membrane in the monitoring module
- Disassemble the hydraulic body valves to clean them
- Pull downwards to remove the suction valve unit
- Rinse the various sections thoroughly using clean water and reassemble
them
- Put the suction valve back into the doser body, push it to the stop.
- Check that the valve return spring is active.
- Reassemble in the opposite direction from the manual disassembly.
Draining the Dosatron
When protecting against freezing
- Close the water inlet.
- Remove the dosing assembly; see § Cleaning the suction valve, §
Changing the dosing seals
- Remove the lid and the motor.
- Disconnect the connections at the water inlet and outlet.
- Empty the main body after having removed it from the wall support.
- Reassemble having previously cleaned the leaktightness seal.
©
DOSATRON INTERNATIONAL S.A.S. / 31
©
DOSATRON INTERNATIONAL S.A.S. / 67
Valve 1
Valve 2