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Warnings

313259B

3

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back 
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where 
applicable.

WARNING

WARNING

WARNING

WARNING

FIRE AND EXPLOSION HAZARD 

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent 
fire and explosion:

Use equipment only in well ventilated area.

Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop 
cloths (potential static arc). 

Keep work area free of debris, including solvent, rags and gasoline.

Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes 
are present.

Ground all equipment in the work area. See Grounding instructions.

Use only grounded hoses.

Hold gun firmly to side of grounded pail when triggering into pail.

If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment 
until you identify and correct the problem.

Keep a working fire extinguisher in the work area.

EQUIPMENT MISUSE HAZARD 

Misuse can cause death or serious injury.

Do not operate the unit when fatigued or under the influence of drugs or alcohol.

Do not exceed the maximum working pressure or temperature rating of the lowest rated system 
component. See Technical Data in all equipment manuals.

Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all 
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information 
about your material, request MSDS forms from distributor or retailer.

Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’s replacement parts only.

Do not alter or modify equipment.

Use equipment only for its intended purpose. Call your distributor for information.

Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

Do not kink or over bend hoses or use hoses to pull equipment.

Keep children and animals away from work area.

Comply with all applicable safety regulations.

ELECTRIC SHOCK HAZARD 

Improper grounding, setup, or usage of the system can cause electric shock.

Turn off and disconnect power cord before servicing equipment.

Use only grounded electrical outlets.

Use only 3-wire extension cords.

Ensure ground prongs are intact on sprayer and extension cords.

Do not expose to rain. Store indoors.

Summary of Contents for 256273

Page 1: ...use in explosive atmospheres Model 256273 Includes parts needed to assemble heated hose system Heated hose assembly and Viscon HP heater must be ordered separately See Technical Data on page 24 for Ma...

Page 2: ...ng 14 Tubing Lengths 14 Install 14 Setup 17 Connecting Additional Hose Lengths 17 Operation 18 Maintenance 19 Troubleshooting 19 Parts 20 Technical Data 24 Graco Standard Warranty 26 Graco Information...

Page 3: ...working fire extinguisher in the work area EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury Do not operate the unit when fatigued or under the influence of drugs or alcohol Do not exc...

Page 4: ...during operation To avoid severe burns do not touch hot fluid or equipment Wait until equipment fluid has cooled completely TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury o...

Page 5: ...mum total length of 300 ft 91 4 m See manual 309525 Single Hose Assemblies Dual Hose Assemblies A B C D Dual Hose Assembly A B Single Hose Assembly Part Maximum Pressure Rating psi MPa bar Hose Diamet...

Page 6: ...ivision 1 Group D Hazardous Locations Temp Code T2 482 F 250 C 20 C T amb 135 F 57 C See Technical Data page 24 for additional information 245863 A 240 4000 16 7 245864 A 480 4000 8 30 245862 A 200 40...

Page 7: ...Heated Hopper or Hose Circulation Kit 256273 313259B 7...

Page 8: ...Installation Key A Viscon HP Heater B Husky diaphragm pump C Hopper D Frame E Fluid circulation tubing NOTE See FIG 2 on page 9 for fluid schematic of heated fluid FIG 1 Heat Only Hoppers Configurati...

Page 9: ...M Side Mounted Hoppers SM Table 1 Tubing Lengths Section Tubing BM Hoppers in mm SM Hoppers in mm AA 1 2 in 65 1651 50 1270 AB 51 1295 4 35 889 AC 7 177 8 4 101 6 BA 3 4 in 40 1016 36 914 4 BB 29 736...

Page 10: ...pper D Frame E Fluid circulation tubing F Heated hose tee fittings see heated hose connections on page FIG 5 and FIG 6 on page 12 and 13 NOTE See FIG 6 on page 13 for fluid schematic of heated fluid F...

Page 11: ...ing lengths with side mounted hoppers SM and back mounted hoppers BM FIG 4 Fluid schematic for heating hoppers and heated hose 21 in 533 4 mm 27 in 685 8 mm 23 in 584 2 mm r_256273_313259_12 To Red Tu...

Page 12: ...ting to red tubing G Return hose tee fitting from blue tubing H Recirculation valve J Heated hose assembly purchase separately K Overflow tank used for only heated hose configuration NOTE See FIG 6 on...

Page 13: ...Typical Installation 313259B 13 FIG 6 Fluid schematic for heated hose RED BLUE G F Single Hose Shown 23 in 584 2 mm 38 in 965 2 mm 24 in 609 6 mm...

Page 14: ...r mounting configuration and heating choices Reference the fluid schematic from the configurations listed below to find the tubing lengths Heating hoppers only See FIG 2 on page 9 Heating hoses only S...

Page 15: ...g fitting 23 d Install bushing 12 and elbow fitting 17 on dia phragm pump 3 fluid outlet 4 Mount pump 3 on mounting bracket with four screws 2 See FIG 7 on page 15 5 Connect nipple 10 air regulator ga...

Page 16: ...d out let facing upward 10 Wire Viscon HP heater B to your voltage supply Follow wiring procedure in the Viscon HP manual 309524 11 If heating hoppers remove bottom plug P from hopper C Install elbows...

Page 17: ...t elbow fitting 7 to 1 1 2 gallon tank mani fold 23 with tubing 4 For heating hoppers and heated hose See fluid schematic on page 11 and parts on page 20 1 Connect A and B fluid hoses to shutoff check...

Page 18: ...y adjusting the pump s air regulator 7 until the pump cycles about 50 cycles min Do not use a higher flow rate as doing so will decrease system heating perfor mance and pump life Never exceed the hose...

Page 19: ...cycles min Problem with Viscon HP heater See troubleshooting in Viscon HP heater manual 309524 Diaphragm pump not operating cor rectly See troubleshooting in Husky 716 diaphragm pump manual 308981 Oil...

Page 20: ...irculation Kit For heating hoppers and heated hose To Red Tubing To Blue Tubing 7 11 7 11 13 13 13 32 31 32 31 30 4 4 16 29 29 4 4 Cut tubing to length See table on page 9 See Heater and Diaphragm Pum...

Page 21: ...rs BM Side Mounted Hoppers SM 7 11 32 31 16 29 4 4 32 31 7 11 13 4 29 30 29 12 17 16 29 29 4 4 7 11 7 11 30 13 4 1 Cut tubing to length See table on page 9 See Heater and Diaphragm Pump 3 Connections...

Page 22: ...Diaphragm Pump 3 Connections 9 12 17 31 10 19 5 2 3 21 13 8 7 17 13 8 8 For heating heated hose only For heating hoppers or hoppers and heated hose only 4 4 9 19 10 3 5 1 5 20 12 17 7 r_256273_313259...

Page 23: ...NG nipple short 1 4 18 npt 1 11 124070 BUSHING pipe 1 npt m x 1 2 npt f 2 12 C19683 BUSHING reducing 3 4 m x 3 8 f 1 13 117425 FITTING tee 1 2 in 13 mm OD tube 3 15 119402 CABLE coiled ground 1 16 054...

Page 24: ...6 6 bar Maximum Temperature Rating 140 F 60 C Wetted Parts High Pressure Fluid Hose Nylon Zinc Plated Carbon Steel Heated Fluid Circulation Tubing Polyether based Polyurethane nylon Heated Fluid Circ...

Page 25: ...Technical Data 313259B 25...

Page 26: ...anship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IM...

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