Graco 3A0410D User Manual

At the end of the work shift and before you check, 
adjust, clean or repair the system, follow the Pressure 
Relief Procedure, page 12.

Establish a preventive maintenance schedule based on 
the pump’s service history. Scheduled maintenance is 
especially important to prevent spills or leakage due to 
diaphragm failure.

The pump is lubricated at the factory. It is designed to 
require no further lubrication for the life of the packings. 
There is no need to add an inline lubricator under nor-
mal operating conditions.

Before each use, check all hoses for wear or damage 
and replace as necessary. Check to be sure all threaded 
connections are tight and leak-free. Check mounting 
bolts. Check fasteners. Tighten or retorque as neces-
sary. Although pump use varies, a general guideline is 
to retorque fasteners every two months. See Torque 
Instructions, page 14.

•

Flush before fluid can dry in the equipment, at the 
end of the day, before storing, and before repairing 
equipment.

•

Flush at the lowest pressure possible. Check con-
nectors for leaks and tighten as necessary.

•

Flush with a fluid that is compatible with the fluid 
being dispensed and the equipment wetted parts.

•

Always flush the pump and relieve the pressure 
before storing it for any length of time.

Flush the pump often enough to prevent the fluid 
you are pumping from drying or freezing in the 
pump and damaging it. Use a compatible solvent.