attained by oil change, sludge or other deposit may have collected on the bottom of the pump case.
In that event, overhaul is required. Contact with us.
CAUTION
The pump oil might deteriorate in a shorter time depending on the use. It is recommended to replace
the first pump oil within ten days after operation start and see how it got dirty to determine the oil
replacement cycle.
If the pump breathes in a lot of water or the like, you should replace the oil more frequently. If kept
operation without getting rid of breathed water, it would deteriorate lubrication of the oil and
accelerate corrosion of the pump inside, then result in a failure. Do not store the pump keeping
sucked the water.
You should replace the oil if breathed in the solution to deteriorate lubrication of the oil as it would
also cause biting inside. There is a risk if breathed in the solution in operation even you replaced the
oil. When using the pump in suction of solvents, it is out of range of warranty.
If the pump breathed in chemical material such as acid, immediately replace the oil as it would cause
the rust during the stop in one night to make the system not applicable to operate. When using the
pump in suction of chemical material, it is out of range of warranty.
Starting the pump operation might become difficult in winter season or in the cold district. This is the
overload phenomenon caused by increased viscosity of the pump oil. To make sure, you should
confirm that the capacity of the motor over load protective device conforms to the motor rated value,
the pump is not damaged and the cable does not have abnormality. Then, warm up the pump oil or
replace the vacuum pump oil with BS046 which having lower viscosity.
CAUTION
When temperature is low and pump does not run, warm the pump oil up to 15℃ and turn the pump
on and off several times in short intervals.
When the pump stops after run for several seconds, try to move it while putting slow leak in it, there
is the thing that the pump can run consecutively.
As the pump warmed, close the slow leak valve and return it to regular running.
6.4 Abnormal noise and vibration check
Checking around the pump
1. Whether bolts and nuts and the like fixing the pump are loose or not.
2. Whether pipes connected to the inlet and outlet are loose or not.
3. Check and ensure that there is no leakage from the piping and valves. Please refer to the table 7
“Trouble Check List” to check the pump.
To Next Page
Loading...