Graco Husky 1040, Instructions-Parts List Manual

Page: 13 / 36

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Operation
Operation of Remote Piloted Pumps
1. Follow preceding steps 1 through 7 of Starting and
Adjusting the Pump .
2. Open air regulator (C).
WARNING
3. Pump will operate when air pressure is alternately
applied and relieved to push type connectors (14).
NOTE: Leaving air pressure applied to the air motor for
extended periods when the pump is not running may
shorten the diaphragm life. Using a 3-way solenoid
valve to automatically relieve the pressure on the air
motor when the metering cycle is complete prevents this
from occurring.
WARNING
Pump Shutdown
At the end of the work shift, relieve the pressure.
Maintenance
Lubrication
The air valve is designed to operate unlubricated,
however if lubrication is desired, every 500 hours of
operation (or monthly) remove the hose from the pump
air inlet and add two drops of machine oil to the air inlet.
CAUTION
Flushing and Storage
Flush the pump often enough to prevent the fluid you
are pumping from drying or freezing in the pump and
damaging it. Always flush the pump and follow the
Pressure Relief Procedure on page 12 before storing it
for any length of time. Use a compatible solvent.
Tightening Threaded Connections
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 fasteners.
Tighten or retorque as necessary. Although pump use
varies, a general guideline is to retorque fasteners every
two months. See
Torque Sequence , page 32.
Preventive Maintenance Schedule
Establish a preventive maintenance schedule, based on
the pump’s service history. This is especially important
for prevention of spills or leakage due to diaphragm
failure.
The pump may cycle once before the external signal
is applied. Injury is possible. If pump cycles, wait until
end before proceeding.
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
Do not over-lubricate the pump. Oil is exhausted
through the muffler, which could contaminate your
fluid supply or other equipment. Excessive
lubrication can also cause the pump to malfunction.