Graco 255963 important safety instructions Fill Heating Fluid, Install Venting Fittings

Fill Heating Fluid

Fill the hopper’s outer jacketed area with oil or a 50% water and 50% ethylene glycol mixture to heat your spray material. The double wall hopper design prevents the spray material from losing heat during downtime and overnight.

NOTICE

Algae can form inside the outer jacketed area if you are using only water to heat your spray material. Always add ethylene glycol to the water to prevent the formation of algae.

Replace heating fluid inside hopper once a year to improve heating efficiency. See Check Heating Fluid Level on page 18.

Table 1: Fluid Capacities of 20 Gal. Hopper

Gallons (Liters) of	Gallons (Liters) of
Heating Fluid	Spray Material
12 (45)	20 (76)

1.Remove plug (6) from opposite end of 3/4 npt filling port.

Setup

3.Fill outer jacketed area of the hopper through the fill- ing port until the fluid reaches the opposite fill port when using the Immersion Heater Kit 256257, page 12.

NOTICE

Do not fill the outer jacketed area fully if using the hopper or hose circulation kit. See fill instructions in the Hopper or Hose Circulation Kit manual. Overfill- ing may cause heating fluid to overflow vent fittings (see FIG. 21) during startup.

NOTICE

Do not plug top ports. Always have venting fittings (36, 39) installed to prevent outer cavity pressuriza- tion. Failure to do so may cause leakage into spray material.

4.Vent fittings may be installed on either side. See FIG. 21 for correct orientation of venting fittings.

39

6

36

FIG. 20: Install Venting Fittings

FIG. 19: Filling Overflow Port

2.Insert fluid hose into one filling port and place an empty 5 gallon pail beneath opposite filling port to catch access fluid from filling port.

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