5
309977
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
application of decorative or hard-to-spray materials.
WARNING
Overpressurizing the system may cause compo-
nent rupture and result in serious injury. To reduce
risk of overpressurizing system:
D
Do not use a compressor with an output pressure
greater than 250 psi (1.7 MPa, 17 bar).
D
Attach Graco 25 mm x 5m hose to pump outlet.
Hose Size and Lengths
The system comes with the following hoses:
Hose
Type
Inside Diameter (ID)
mm (in.)
Length
m (ft)
Fluid
25 mm (1.0)
5 (16)
Fluid
19 mm (.75)
3 (10)
Air
9.5 mm (.375)
15 (49)
Hose Usage
Always attach the 25 mm x 5m hose to the pump
outlet. Other hoses may then be added up to the
maximum fluid hose lengths:
D
Use shortest fluid hose length required for the
spray application [(25 mm x 5m) minimum; see
Warning].
D
Unnecessary hose length decreases sprayer
performance.
D
Maximum fluid hose lengths:
15 m of 25 mm ID
– or –
10 m of 25 mm ID combined with 3 m of 19 mm ID
fluid hose.
WARNING
The motor has a thermal overload switch that shuts
down the motor if it overheats.
To reduce the risk of serious bodily injury due to the
system restarting unexpectedly, always turn the
pressure control to OFF (0).
WARNING
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
pressurization of the system, do not use quick-set
materials.
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