Operation
3A8848A
17
Operation
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
Relieve Pressure at the pump element using two
wrenches working in opposite directions on the pump
element and pump element fitting to slowly loosen
fitting only until fitting is loose and no more lubricant or
air is leaking from the fitting. Repeat for each pump
element installed (F
. 9).
NOTE:
When loosening the pump element fitting, do
not loosen the pump element, Loosening the pump ele
-
ment will change the output volume.
Connect to Auxiliary Fittings
Pressure Relief Valves
NOTE:
A pressure relief valve can be purchased from
Graco. See Parts, page 43.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid, and moving parts, follow the Pressure Relief
Procedure when you stop dispensing and before
cleaning, checking, or servicing the equipment.
F
IG
. 9
NOTICE
Do not attach unsupported equipment to auxiliary fit
-
tings such as fill ports and pump element. Attaching
unsupported equipment to these fitting can result in
irreparable housing damage.
• Always use two wrenches working in opposite
directions when connecting anything to pump
element or auxiliary fittings. See F
. 9 for an
example.
• Torque pump element fittings to 50 in. lbs
(5.6 N•m).
• When connecting pump element into housing
torque to 50 in. lbs (5.6 N•m).
To prevent over-pressurization, which can result in
equipment rupture and serious injury, a pressure
relief valve appropriate for the lubrication system
must be installed close to every pump outlet to alle
-
viate unintended pressure rises in the system and
protect the G5 pump from damage.
• Only use a pressure relief valve that is rated for
no more than the working pressure of any com
-
ponent installed in the system. See
, page 49.
• Install a pressure relief valve close to every
pump outlet; before any auxiliary fitting.
