Graco 247444 Benutzerhandbuch

See separate system component manuals for service 
instructions. For pump service see manual 312350. For 
vent valve service see manual 309099.

System does not build sufficient 
pressure.

Pump malfunction.

Refer to manual 312350.

Pump turned off too soon.

Increase timer “pump on” setting.

Increase hydraulic flow rate to pump.

Solenoid malfunction.

Repair or replace solenoid.

Too low or no hydraulic supply.

Turn pressure up or supply on.

Vent valve seal failure.

Replace seal.

Vent valve needle/seat failure.

Replace needle and seat.

Reservoir out of grease.

Fill reservoir.

Broken or leaky supply/branch line.

Tighten connections and/or replace 
line(s).

Injector failure.

Repair or replace injector.

Pressure in tank line too high due to 
restrictions in tank line or plumbing 
too small.

Remove tank line restrictions.

Use larger plumbing.

Lubricant dispensed from pressure 
relief valve.

System pressure set too high.

Decrease hydraulic pressure to 
pump.

Pump runs too fast.

Reservoir out of lubricant.

Fill reservoir.

Pump cavitation.

Install a follower plate.

Leak in distribution system.

Repair leak.

Lubricant coming out of breather.

Reservoir overfilled.

Drain lubricant until overflow stops.

Pump will not start.

No hydraulic supply.

Verify/check hydraulic supply.

Solenoid malfunction.

Replace solenoid.

No electrical supply to lubrication 
controller.

Turn on electrical supply.

Lubrication controller malfunction.

Refer to controller manual 308950.

Pump malfunction.

Refer to pump manual 312350.