Operation
Operation
Pressure Relief Procedure | Trigger Lock |
Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing or moving parts.
1.Engage the trigger lock.
2.Close the
3.Disengage the trigger lock.
4.Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure.
5.Engage the trigger lock.
6.Open all fluid drain valves in the system, having a waste container ready to catch drainage. Leave drain valve(s) open until you are ready to spray again.
7.If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved after follow- ing the steps above, VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Clear hose or tip obstruction.
Flush Before Using Equipment
The equipment was tested with lightweight oil, which is left in the fluid passages to protect parts. To avoid con- taminating your fluid with oil, flush the equipment with a compatible solvent before using the equipment. See Maintenance, page 13.
Always engage the trigger lock when you stop spraying to prevent the gun from being triggered accidentally by hand or if dropped or bumped.
Wet Cup
Before starting, fill wet cup (T) 1/3 full with Graco Throat Seal Liquid (TSL) or compatible solvent.
T 
ti11927a
FIG. 4. Fill Wet Cup
312794E | 11 |