CAUTION!
Possible environmental and material damage
In event the red gear bleeding plug is sealed, during
operation it prevents any pressure compensation
between the drive housing and the surroundings. This
ensure that oil can be pushed from the drive housing.
– Remove the gear bleeding plug before commis‐
sioning.
Before start up pull off the red gearbox vent stopper, see chapter "Over‐
view of equipment and control elements".
When the pump is idle, check whether the oil level in the pump is in the
middle of the oil level indicator.
This will rule out the pump losing oil and suffering damage.
When commissioning the unit, check whether the drive motor is rotating
correctly - check this against the arrow on the motor housing or the dia‐
gram in the chapter entitled "Electrical Installation."
CAUTION!
Danger due to incorrect use of the integral relief valve
The integral relief valve can only protect the motor and
the gear, and then only against impermissible positive
pressure that is caused by the metering pump itself. It
cannot protect the system against positive pressure.
– Protect the motor and gear of the system against
positive pressure using other mechanisms.
– Protect the system against illegal positive pressure
using other mechanisms.
CAUTION!
Danger of the integral relief valve failing
The integral relief valve no longer operates reliably with
feed chemicals having a viscosity of greater than 200
mPa s.
– Only use the integral relief valve with feed chemicals
having a viscosity up to 200 mPa s.
1. Hydraulically isolate the discharge line from the pump using an iso‐
lation device.
2. Turn the rotary dial on the integral relief valve in a counter-clockwise
direction as far as the "open" stop.
ð
The excess pressure escapes through the hose connector.
3. Run the pump until the feed chemical coming out of the hose con‐
nector is free from bubbles.
4. Turn the rotary dial on the integral relief valve in a clockwise direc‐
tion up to the "close" stop.
ð
The pump can be started.
Remove the gearbox vent stopper
Checking the oil level
Checking the direction of rotation
Using the integral relief valve
Priming against pressure
Start Up
65
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