Inspection of
Action
Wear on the outlet flange on the pump casing usually causes wear on the
discharge connection.
Oil quantity
WARNING. If the seal leaks, the oil casing may be under pressure. Hold
a rag over the oil casing screw in order to prevent splatter. See “Safety
Precautions” for additional information.
Check that the oil reaches up to the oil hole when the pump is lying down.
Add oil as needed. See “Changing the Oil.”
Condition of the oil
A check of the condition of the oil can show whether there has been an
increase leakage. Maximum permissible leakage of 0.05 ml/h (0.0017
oz/h). (Note: Air/oil mixture can be confused with water/oil mixture.)
Insert a tube (or hose) into the oil hole. Cover the top end of the tube and
take up a little oil from the bottom.
Change the oil if it contains too much water, i.e., is heavily emulsified
(cream-like), or if the oil housing contains separated water. See “Changing
the Oil”. Check again once week after changing the oil.
If the oil contains too much water again, the fault may be:
that an oil screw is not sufficiently tight.
that an oil screw O-ring or its sealing surface is damaged.
that an O-ring or its sealing surface is damaged.
that the lower seal is damaged.
Cable Entry
Make sure that the gland screw is tight.
If the cable entry leaks:
check that the entry is tightened so it bottoms out.
cut a piece of the cable off so that the seal sleeve closes around a
new position on the cable.
replace the seal sleeve.
check that the seal sleeve and the washers conform to the outside
diameter of the cables.
Cables
Replace the cable if the outer jacket is damaged. Make sure that the cables
do not have any sharp bends and are not pinched.
Level sensors or other
Check function. Clean, adjust, replace or repair damaged
level equipment
level sensing equipment. Follow the instructions for the
level sensing equipment in question.
NOTE! The level sensor contains a mercury switch. Damaged sensors
should be disposed of in a proper manner.
Starter equipment
If faulty, contact an electrician.
Monitoring equipment
Check:
(should be checked often)
- signals and tripping function.
- that relays, lamp, fuses and connections are intact.
Replace defective equipment.
