Outline

6. Precautions for use

Read through this section before operation.

● Do not run pump dry

Caution

Sliding parts always need liquid in the pump chamber for lubrication and cooling. Do not produce dry running or closed-discharge operation. The pump unit will be damaged.

*If the pump runs dry by mistake, turn off power and leave it for more than one hour to cool it down. Do not refill the pump chamber soon. Quick cooling can give rise to cracks on parts.

● Be sure to prime the pump before operation

Always prime the pump when it is empty, for example, the pump is used for the first time or after dismantlement/assembly. Running the pump without priming water, internal parts are excessively worn by friction heat and fatal pump damage results.

● A specified application only

Do not use the pump in anything other than a specified purpose. Observe the specification described on the pump or motor label.

● A qualified operator only

The pump must be handled or operated by a qualified person with a full understanding of the pump. Any person who is not familiar with this product shall not take part in the operation or management.

1. Use this pump for sending a liquid only a. The pump is not capable of slurry and shall not be used for it. b. Maximum liquid viscosity: 120mPa•s Contact us before sending a liquid over 120mPa•s. c. Liquid temperature range:

This pump is not capable of closed-discharge operation. Always keep the minimum flow.

2. Observe the following conditions. Contact us or your nearest dealer for detail.

MDW50: -10 - 120°C

MDW80/100: -10 - 105°C d. Ambient temperature: 0-40°C e. Relative humidity: 35-85%RH

Observe the freezing and boiling points of the chemical liquid.

Allowable liquid temperature range varies with chemical liquid. Contact us when a liquid temperature is at or below 0°C.

*Before operation, see the specification sheet for pump performance.