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General Repair Information
309977H 7
General Repair Information
Auxiliary Air Compressor
An external air compressor may be connected to the
applicator air line fitting, This may be useful for the appli-
cation of decorative or hard-to-spray materials.
Hose Size and Lengths
The system comes with the following hoses:
Hose Usage
Always attach the 25mm x 5m hose to the pump outlet.
Other hoses may then be added up to the maximum
fluid hose lengths:
• Use shortest fluid hose length required for the spray
application [(25mm x 5m) minimum, see Warning].
• Unnecessary hose length decreases sprayer perfor-
mance.
• Maximum fluid hose lengths:
15m of 25mm ID
-or-
10m of 25mm ID combined with a 3m of 19mm ID
fluid hose.
Over pressurizing the system may cause component
rupture and result in serious injury. To reduce risk of
over pressurizing system:
• Do not use a compressor with an output pressure
greater than 250 psi (1.7MPa, 17 bar).
• Attach Graco 25mm x 5m hose to pump outlet.
Hose Type Inside Diameter
(ID) mm (in.)
Length
m (ft)
Fluid 25mm (1.0) 5 (16)
Fluid 19mm (.75) 3 (10)
Air 9.5mm (.375) 15 (49)
The motor has a thermal overload switch that shuts
down the motor if it overheats.
To reduce risk of serious bodily injury due to the system
restarting unexpectedly, always turn the pressure con-
trol to OFF (0).
Quick-set materials can harden, plug passage ways and
cause the sprayer to become over pressurized. An
over-pressurized system can cause components to
burst and cause bodily injury.
To reduce the risk of bodily injury due to over pressur-
ization of the system, do not use quick set materials.