Graco Inc. 247550 Benutzerhandbuch

1.

Open the bleed-type master air valve (A). 

2.

Trigger the gun into a grounded metal pail, holding a 
metal part of the gun firmly to the pail. 

3.

Slowly open the air regulator (E) until the pump 
starts running. 

4.

Run the pump slowly until all the air is purged, 
release the gun trigger, and lock the trigger safety - 
the pump will start and stop as the gun is opened 
and closed. 

•

Always use the lowest pressure necessary to get 
the desired results.

•

Never allow the pump to run dry of fluid being 
pumped. A dry pump will quickly accelerate to a 
high speed, possibly damaging itself. If your pump 
accelerates quickly, or is running too fast, stop it 
immediately and check the fluid supply. If the supply 
container is empty and air has been pumped into 
lines, prime the pump and lines with fluid, or flush 
and leave filled with a compatible solvent. Be sure to 
eliminate all air from the fluid system.

•

The piston and intake check valves of displacement 
pump 247599 are factory-set for light viscosity flu-
ids. This setting minimizes surging at pump stroke 
changeover. To adjust the valves for heavier viscos-
ity fluids, see manual 312745.

•

Always stop the pump at the bottom of its stroke to 
prevent fluid from drying on the rod and damaging 
the throat packings. When you finish pumping, 
always relieve the pressure, page 9.

•

If you are pumping fluid which dries, hardens, or 
sets up, flush the system with a compatible solvent 
as often as necessary to prevent a build up of dried 
fluid in the pump or hoses.

•

Every 40 hours of operation, check that the packing 
nut is tight. Relieve the pressure, page 9. Then, 
tighten the packing nut just snug - do not overtighten 
or the packings may be damaged.