Haier 1590 SA 用户手册

1.

Shut off the air to the pump.

2.

Open any available outbound fluid valve to relieve 
fluid pressure from the pump.

3.

If fluid is still in the outbound fluid lines, isolate this 
fluid as follows:

a.

Close the outbound fluid valves.

b.

Slowly remove the fluid connections from the 

pump, and have a container ready to catch any 

fluid that runs out.

It is the user’s responsibility to properly sanitize the 
pump before first use. It is up to the user whether this 
will include disassembling and cleaning individual parts 
or simply flushing pump with a sanitizing solution. As 
necessary, follow the steps under Starting and Adjust-
ing the Pump below, under Flushing on page 11, or 
under Disassembly in the Service section on pages 
19, 21. 

1.

Be sure the pump is properly grounded. Refer to 
Grounding on page 5.

2.

Check connections to be sure they are tight. Tighten 
fluid inlet and outlet connections securely.

3.

Place the suction tube (if used) in fluid to be 
pumped.

4.

Place the end of fluid hose (L) into an appropriate 
container. 

5.

Close the fluid drain valve (J).

6.

Back out the air regulator (C) knob, and open all 
bleed-type master air valves (B, E).

7.

If the fluid hose has a dispensing device, hold it 
open while continuing with the following step. 

8.

Slowly increase air pressure with the air regulator 
(C) until the pump starts to cycle. Do not exceed the 
maximum operating air pressure as listed in the 
Technical Data section on pages 34 and 37. Allow 
the pump to cycle slowly until all air is pushed out of 
the lines and the pump is primed.

At the end of the work shift, relieve pressure.

The pump was built and tested using a food grade 
lubricant.

 If fluid inlet pressure to the pump is more than 
25% of the outlet working pressure, the ball check 
valves will not close fast enough, resulting in inef-
ficient pump operation.