AGP 700W Mechanical, Instruction Manual

16

HOURLY MAINTENANCE

We recommend after every hour of spraying, stop, 
follow the Pressure Relief Procedure and perform 
the following:

• 

Add about 2 drops of throat Seal Oil to 
lubricate the packings. 

• 

Clean the pump filter. 

(if so equipped)

• 

Clean the gun filter.

• 

Clean the tip.

• 

Clean the inlet  strainer. As needed.

CAUTION: Never lay the pump on its back. 
Material could flow backward and damage the 
electronics or motor.

DAILY MAINTENANCE

1.  Keep the displacement pump packing 

nut 

lubricated with throat seal  oil at all times. 

Add about five drops of  oil to the top of the 
pump at the beginning of each day. Then two 
drops for every hour of spraying. The throat 
seal oil helps protect the piston, rod  and 
packings.

2.  Inspect the packing nut daily. 

If either of the 

following conditions exists the packing nut 
should be tightened:

a. 

Seepage of material past the  packing 
is found.

b. 

While the system is pressurized  
during the intervals when the motor 
is not running, the piston  doesn't 
hold its position. Rather,  it tends to 
slip upward. 

To tighten the packing nut:  Reach the tommy bar  
through the opening and tighten the packing nut.  
  

CAUTION: The  packing  nut  should  be  
tightened just enough to stop leakage only, but 
not  any tighter. Overtightening will damage  the 
packings and reduce packing  life.

3.  Clean the intake check ball and seat. 

        housing. Place the filter in the spray gun and 

reassemble the unit by tightening the nut with 
the wrench.

19. 

Clean the exterior of the sprayer with a rag 
soaked in the appropriate solvent.

20. 

If flushing was with water, flush again with 
mineral spirits to prevent corrosion  inside the 
pump. 

CAUTION: Never leave water in the pump for any 
length of time. Water will corrode the pump.

LONG TERM STORAGE

For long- term storage, fill the pump with a storage 
solution made of a 50/50 mix of motor oil and 
mineral spirits.

To fill the pump:

1. 

Place the both the suction tube and drain tube 
in a small quantity of storage solution. 

2.

  With the priming valve in the open position, 

turn the machine on and turn the pressure 
control knob just enough for the pump to run.

3.

Watch the drain tube and as soon as the storage 
solution appears in the tube, shut the machine 
off and close the priming valve. This will trap 
the storage solution inside the pump to protect 
it.    

MAINTENANCE

Every 50 hours of operation blow compressed air 
through the motor while running at no load to clean 
out accumulated dust. (If operating in especially 
dusty conditions, perform this operation more often.)