Daily Check; Possible Problems - Dellmeco DM 80/800 Instruction Manual

! ! ! !
Be extremely careful when removing piping - the fluid will gush out.
! ! ! !
After cleaning with clean water, turn the pump upside-down to let the water flow out.

11. Daily check

Before starting pump operation, conduct the following check procedures every day. In case there
appears any irregularity, do NOT start running the pump until the cause of the irregularity has been
determined and corrective measures have been taken.
a) Make sure that there is no leakage of fluid from any connection part or the pump.
b) Make sure that there are no cracks in the pump casing or piping.
c) Check the tightness of every bolt of the pump.
d) Make sure that the connection parts of the piping and peripheral equipment are not loose.
e) Make sure that any parts of the pump that are to be replaced at regular intervals have been
changed.

12. Possible problems

12.1. Pump does not run
Cause
The exhaust port (muffler) of pump is clogged with
sludge.
Air is not supplied.
The supply air pressure is low.
Air leaks from connection parts.
The flow valve on the discharge side is not open.
The fluid piping is clogged with sludge.
The pump is clogged with sludge.
20 I DELLMECO I AODD DIAPHRAGM PUMPS
! ! ! !
CAUTION
Action to take
Check and clean the exhaust port and muffler.
Start the compressor, and open the air valve and air
regulator.
Check the compressor and the configuration of air
piping.
Check the connection parts and tightness of bolts.
Open the flow valve on the discharge side.
Check and clean the fluid piping.
Disassemble the casing, check and clean.