Eriez FJ-310A, Installation, Operation And Maintenance Instructions

16

Air Venturi Dual Tank  

Operation

Before operating this equipment for the first time, 
and periodically thereafter, review the SAFETY 
INFORMATION beginning on page three of  
this manual. 
Suction vacuum and discharge pressure are 
independently applied to each of the compartments  
of this dual compartment unit. Select the compartment 
to be used by opening or closing the appropriate 
vacuum and discharge valves and by attaching the 
hoses to the appropriate fittings and cap off the other 
tank fittings.

1.  For suction operation to remove dirty coolant 

and chips from a machine sump:

A.  Connect the shop’s compressed air supply  
 

line to the sump cleaner’s vacuum generator  

inlet (CA1).

B.  Open suction inlet valve (S1) and vacuum  

valve (V1). All other valves should be closed  

for this operation.

C.  Turn on the compressed air to the sump  

cleaner. Vacuum coolant, chips and sludge  

from the machine sump.

D.  Turn off the compressed air when finished 

cleaning the machine.

E.  The tank’s maximum capacity is, at most,  

10% above the rated capacity. Mechanical  

floats located in the tank near the vacuum  

valve will rise with the rising liquid level in  

the tank and shut off the vacuum when the  

tank is full. When this occurs, the sump  

cleaner will stop sucking; turn off the  

compressed air to the sump cleaner  

and prepare to discharge the coolant. 

2.  For suction operation to fill clean coolant 

compartment:

A.  Connect compressed air line to air inlet (CA1). 
B.  Close suction inlet valve (S1) and vacuum  
 

valve (V1). Open vacuum valve (V2). 

C.  Attach the 1-1/2" hose to the clean coolant  
 

compartment inlet/discharge port and remove  

the discharge nozzle. 

D.  Attach the nozzle end of this hose to the clean  
 

coolant supply tank. Turn on the compressed  

air and reattach the discharge nozzle to the  

hose when full. Close vacuum valve (V2). The  

compressed air inlet is equipped with a preset,  

nonadjustable pressure-reducing regulator  

to lower the air pressure to 7 psi. A 15 psi  

safety (POP-OFF) valve in this same line acts  

as a back up to prevent over-pressurizing  

the sump cleaner tank. 

3.   Discharge Operation to fill a machine tool  

with clean coolant:

A. Close valves S1, V1, V2 and D1. 
B.  Place the discharge nozzle into the machine  
 

sump and turn on the compressed air by  

opening discharge valve D2. Open the  

discharge nozzle and fill the coolant sump.  

Close the nozzle and turn off the compressed  

air by closing discharge valve D2. 

C.  Connect the compressed air supply to the  
 

compressed air inlet (CA2). 

4.   Discharge operation to return filtered,  

chip-free coolant to the machine to wash  

down the machine or to discharge coolant  

into your recycling or disposal system:

A.  Close valves S1, V1, V2 and D2 completely.

B.  Attach the 1-1/2" hose to the dirty coolant  

  discharge 

port.

C.  Connect the compressed air supply line  

to the compressed air inlet (CA2).

D.  Open discharge valve (D1) to empty filtered  

  chip-free 

coolant.

E.  When discharging operation is complete,  

turn off the compressed air supply by closing  

discharge valve D1. The sump cleaner will  

discharge all but about an inch of fluid in  

the bottom of the tank. This is unimportant  

if the cleaner is used for one type of coolant  

only. If different coolants are involved, remove  

the tank’s drain plug to empty it completely.

NOTE:

 Discharge valves D1 and D2 are three-way  

ball valves that will depressurize the sump cleaner  
tank when fully closed. To avoid possible injury,  
do not leave the sump cleaner pressurized.