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Unpacking the System

In addition to the assembled unit, these components
are packed loosely or separately: suction assembly,
hose set, gun, instruction manuals. These are the
manuals you should receive:

308-I 94

Husky 307 pump

307-452

Air spray gun

308-325

Fluid regulator

307-805

Fluid heater

307-273

Fluid filter

IV.

Connecting the Hose Set and Gun to

the System 

See Fig. 

I

.

1

To fluid filter (45) outlet

2

To gun air regulator (6b) outlet

3

To needle valve (5) adapter (25)

Fig. 2

1 .

Connect the air hose (54b) between the gun air
regulator (6b) and the air inlet of the spray gun (2).

This is a 

 swivel fitting.

2 .

Connect one fluid hose (54b) to the fluid filter (45)
outlet. Connect the other fluid hose (54b) to the
needle valve (5) adapter (25). The hose has a

 8 swivel fitting.

3 .

Connect the whip hose (10) to the fluid inlet of the
spray gun (2).

4.

Verify that all fittings throughout the system are

tightened securely.

5 .

Use a tie strap (58) to secure the hose set to the
leg of the cart. This provides strain relief so that
tugs on the heavy hoses don’t damage the hose
connections.

Grounding the System

To reduce the risk of static sparking, ground the

pump and all other equipment used or located in

the spray area. Check your local electrical code for

detailed grounding instructions for your area and
type of equipment. Ground 

 of 

this equipment.

Also read 

FIRE OR EXPLOSION HAZARD 

on

page 2.

1 .

2.

3.

4.

5.

6 .

Pump: 

One end of the ground wire (43) is already

connected to the pump grounding strip. Connect
the clamp end of the ground wire to a true earth

ground.

Heater: 

Plug into a properly grounded electrical

outlet. If you use an extension cord, be sure it is a
3-wire grounded cord that is properly sized for the
heater.

Air compressor. 

Follow manufacturer’s

recommendations.

.

Object being 

sprayed: 

Follow local code.

 supply container: 

Follow local code.

 solvent pails: 

Follow local code. Use only metal

pails, which are conductive. Do not place the pail
on a non-conductive surface, such as paper or
cardboard, which interrupts the grounding continu-
ity.

308-448 5

Summary of Contents for HEATED AIR SPRAY PACKAGE 237410

Page 1: ......

Page 2: ...rough 17j listed below 17a Front Bracket Part No 191 902 Qty 1 17b Capscrew Part No 108 768 Qty 2 17c Flat Washer Part No 108 788 Qty 2 17d Keps Nut Part No 113 761 Qty 2 17e Warning Label Part No 290 331 Qty 1 17f Wheel Part No 106 062 Qty 2 17g Hub Part No 104 811 Qty 2 17h Retaining Ring Part No 101 242 Qty 2 17j Tube Plug Part No 112 853 Qty 2 100 021 36 Capscrew Change quantity to 4 100 015 3...

Page 3: ...led hoses cannot be repaired l Handle and route hoses and tubes carefully Keep the hoses and tubes away from moving parts and hot surfaces Do not use the hoses to pull equipment Do not expose Grace hoses to tem peratures above 18Q F 82 C or below 40 F 40 C m FiRE AND EXPLOSION HAZARD Improper grounding poor air ventilation open flames or sparks can cause a hazardous condition and result in a fire ...

Page 4: ...e fluids or solvents that are compatible with equipment wetted parts See the Technical Data section of all equipment manuals Read the fluid and solvent manufacturer s warnings Fluid hoses must have spring guards on both ends to protect them from rupture caused by kinks or bends at or close to the couplings Comply with all applicable local state and national fire electrical and other safety regulat...

Page 5: ...r air valve upstream from the pump When it is closed and the pump air regulator 6a is opened the bleed type master air valve relieves all air pressure to the system components 4 Ventilate the spray booth To prevent hazardous concentrations of toxic and or flammable vapors spray only in a properly venti lated spray booth Never operate the spray gun unless ventilation fans are operating Check and fo...

Page 6: ...ap 58 to secure the hose set to the leg of the cart This provides strain relief so that tugs on the heavy hoses don t damage the hose connections v Grounding the System To reduce the risk of static sparking ground the pump and all other equipment used or located in the spray area Check your local electrical code for detailed grounding instructions for your area and type of equipment Ground all of ...

Page 7: ...lead and lag operation When triggered the gun emits air before the fluid is discharged When the trigger is released the fluid stops before the air flow stops This helps as sure the spray is atomized and prevents fluid buil dup on the air cap Loosen the air cap retaining ring G and rotate the horns of the air cap to obtain the desired spray position Tighten the retaining ring snugly but do not over...

Page 8: ... sufficient volume of fluid without running too fast or too slow Trigger the gun while adjusting the needle valve Turn the needle valve handle IN clockwise to restrict fluid and slow down the pump Turn the needle valve handle OUT counterclockwise to allow more flow which speeds up the pump A CAUTION Never close the needle valve completely Doing so prevents circulation which can cause the fluid to ...

Page 9: ...in the prepared fluid KEY A Bleed type master air valve C Air line 3 fluid heater 6 a Pump air regulator 6 b Gun air regulator 9 3 way valve 1 3 Drain hose 44 Fluid regulator 4 8 Filter drain valve 2 Hook the drain hose 13 on the waste pail 3 Close the filter drain valve 48 4 Turn the 3 way valve 9 to Drain 5 Open the fluid pressure regulator 44 fully clockwise 6 Turn the needle valve 5 ail the wa...

Page 10: ...pressure reg ulator 4 until the straight fluid stream is within the range indicated for the viscosity of your fluid before it drops off See Fig 8 Make note of the pressure on the fluid gauge it is your optimal fluid pressure setting Fluid Viscosity Fluid Droop A Measured with 2 Zahn cup Light 18 25 seconds 8 10 200 250 mm Medium 25 40 seconds 6 8 150 200 mm Heavy 40 60 seconds 4 6 100 l 50 mm 0399...

Page 11: ...rom the gun and clean sepa rately Do not reinstall at this time 3 Open the filter drain valve 48 Unscrew the fluid filter 45 bowl Remove the screen See manual 307 273 Reinstall the bowl without the screen 4 Hook the drain hose 13 on the waste pail 5 Turn the 3 way valve 9 to Drain 6 Turn the needle valve 5 all the way out counterclockwise 7 Put the suction tube 15 in a grounded pail with about 1 g...

Page 12: ...h out some dirty sol vent Flush until the system is clean Repeat with clean solvent if necessary 17 18 19 Raise the suction tube out of the solvent trigger the gun and run the pump until air comes from the gun Turn the 3 way valve to Drain and run the pump until all air is expelled 20 Release the trigger and close the fluid regulator 44 and the air regulators 6a 6b Clean the filter screen air cap ...

Page 13: ...90 ELBOW l 2 npt m x f 90 CORD GRIP ELBOW l 2 npt m includes nut washer and grommet Ref No Part No 25 100 840 26 111 805 28 188 093 29 169 971 30 103 473 3 1 155 494 32 101 754 33 107 219 34 100 639 35 108 290 36 100 021 37 100 015 38 100 016 4u 187 732 4 1 188 l 74 42 208 536 43 222 011 44 236 216 45 218 029 46 100 l 76 47 11 O 249 48 210 658 49 176455 50 5 1 52 53 54 54a 54b 55 56 57 58 60 6 1 6...

Page 14: ...Parts 16 Model 237410 Series A 25 60 23 3 0 8 4 4 8 1 3 ...

Page 15: ...Notes 14 3 0 8 4 4 8 ...

Page 16: ...Notes c 308 448 15 ...

Page 17: ...nction damage or wear caused by the incompatibility with Grace equipment of structures accessories equipment or materiais not supplied by Grace or the improper design manufacture installation operation or maintenance of structures accessories equipment or materials not supplied by Grace This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized G...

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