Maintenance
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Maintenance
Preventative Maintenance
Schedule
The operating conditions of your particular system
determine how often maintenance is required. Establish
a preventive maintenance schedule by recording when
and what kind of maintenance is needed, and then
determine a regular schedule for checking your system.
Daily Maintenance
NOTE:
For over night shutdown, stop pump at bottom
of its stroke to prevent fluid from drying on exposed
displacement rod and damaging throat packings.
1. Perform the
procedure on page 12.
2. Perform the
procedure on page 15.
3. Check packing nut (F). Adjust packings and replace
TSL as necessary. Torque to 105-145 ft-lb (155-185
N•m).
4. If equipped, drain water from air filter.
5. Clean suction tube using a compatible solvent. It is
recommended that you clean the outside of the
sprayer using a cloth and compatible solvent.
6. Check hoses, tubes, and couplings. Tighten all fluid
connections before each use.
7. If equipped, clean fluid line filter.
Corrosion Protection
Always flush the pump before the fluid dries on the
displacement rod. Never leave water or water-based
fluid in the pump overnight.
Motor Lubrication
Graco does not require lubrication beyond the grease
installed at the factory or through regular maintenance.
With good quality compressed air and normal ambient
conditions.
However, if any of the following criteria apply to your
system, you will benefit from installing a 3/4 in. air line
lubricator in the air line before the air motor or from
occasionally adding oil to the air inlet line.
• Air supply does not contain any oil.
• Air supply is very wet.
• Air supply is very dry.
• Air motor is run at low air pressure.
• Air motor is run in unusually hot or cold
environments.
Areas that benefit from lubrication:
• Main piston o-rings (13)
• Sliding valve spool (304, 306)
• Motor detent assembly (305)
• Motor shaft seal (4)
NOTICE
Leaving water or water-based fluid in the pump over
-
night can cause the equipment to rust or corrode. If
you are pumping water-based fluid, flush with water
first, then with a rust inhibitor such as mineral spirits.
Relieve pressure, but leave rust inhibitor in pump to
protect parts from corrosion.