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Graco 207321 Instructions-Parts List Manual page 7

Stainless steel 5:1 ratio bulldog pumps

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Shutdown and Care of the Pump
Always stop the pump at the bottom of its stroke to
prevent fluid from drying on the rod and damaging the
throat packings.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
Check the tightness of the packing retainer screws (7)
weekly. The screws should be tight enough to stop
leakage, but no tighter. Always relieve the pressure
before adjusting the packing retainer screws. See Fig.
2.
Fig. 2
Maintenance
Flushing
If you are pumping fluid which dries, hardens, or sets
up, flush the system with a compatible solvent as often
as necessary to prevent build up of dried fluid in the
pump or hoses.
To reduce the risk of static sparking or splashing in the
eyes or on the skin, relieve the pressure and remove
the spray tip before flushing. Start the pump. Hold a
metal part of the gun/valve firmly to the side of a
grounded metal pail and use the lowest possible fluid
pressure during flushing. When flushing is complete,
relieve the pressure again.
4
Lubrication
7
21
The accessory air line lubricator (G) provides automat-
ic air motor lubrication. For daily, manual lubrication,
relieve the pressure, disconnect the regulator, place
about 15 drops of light machine oil in the pump air
inlet, reconnect the regulator and turn on the air supply
06827
to blow oil into the motor.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
7
306818

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