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10

ADJUST THE SPRAY PATTERN

Increase the pressure adjusting knob setting just until
spray from the gun is completely atomized. Use the low-
est pressure necessary to get the desired results, which
helps prolong the life of your sprayer and minimizes paint
lost by overspray.

Test the spray pattern on a piece of light colored paper.
The tip position determines the direction of the pattern
width. Before adjusting the pattern always follow the
Pressure Relief Procedure Warning on page 11.

Cleaning and Clearing the Spray Tip

To reduce the risk of injection injury, DO NOT hold
your hand, body, or a rag in front of the spray tip
when cleaning or checking a clogged tip. Always
point the gun toward the ground or into a waste con-
tainer when checking to see if the tip is clear.

DO NOT try to “blow back” paint; this is NOT air
spray equipment.

If the spray tip clogs while spraying, engage the gun
safety latch immediately. DO NOT wipe build up off
the gun or tip until pressure is fully relieved. See the
Pressure Relief Procedure Warning on page 11.

WARNING

Clean out the front of the spray tip frequently during daily
operation. First, follow the Pressure Relief Procedure
Warning
 page 11. Then use a solvent soaked brush to
clean the spray tip and to keep build up from drying and
clogging the spray tip.

APPLICATION METHODS

Always hold the gun perpendicular to the surface and
keep the gun at an even 12 to 14 in. (300–356 mm) from
the surface you are spraying.

Begin moving the gun in a horizontal direction at a steady
rate. Start the spray stroke off the target surface and pull
the trigger as the gun is moving. Then, while the gun is
still moving, and as you approach the other edge, release
the trigger. This method avoids excess paint build–up at
the end of each stroke.

RIGHT

WRONG

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The correct speed for moving the gun will allow a full, wet
coating to be applied without runs or sags. Lapping each
stroke about 50% over the previous stroke produces uni-
form paint thickness. And spraying in a uniform pattern
alternately from right to left, then left to right, provides a
professional finish.

The best way to control the rate of coverage is with the
gun tip size. A small tip orifice applies less paint. A larger
tip orifice applies more paint. The width of the pattern de-
pends on the fan pattern of the tip you choose.

Do not try to increase coverage by increasing the fluid
pressure!

Use the lowest pressure necessary to get the desired
paint atomization, which helps prolong the life of your
sprayer and minimizes paint lost by overspray.

OVERLAP EACH STROKE 50%

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Summary of Contents for SUPERNOVA 820-002

Page 1: ...r stop leaks with any part of the body Drain all pressure before removing parts Avoid accidental trig gering of gun by always setting safety latch when not spraying Never spray without a tip guard In...

Page 2: ...risk of fluid in jection when the tip is not installed Check diffuser operation regularly Follow the PRESSURE RELIEF PROCEDURE be low then remove the spray tip Aim the gun into a metal pail hold ing...

Page 3: ...Hose Grounding Continuity Proper hose grounding continuity is essential to maintaining a grounded spray system Check the electrical resistance of your fluid hoses at least once a week If your hose do...

Page 4: ...dentellement Diffuseur Le diffuseur du pistolet sert diviser le jet et r duire les risques d injection accidentelle quand l ajutage n est pas en place V ri fier le fonctionnement du diffuseur r guli r...

Page 5: ...le tuyau imm diatement Un tuyau sans mise la terre ou avec une mise la terre incorrecte peut entra ner des risques pour votre syst me Lisez aussi LES RISQUES D INCENDIE OU D EXPLOSION RISQUES D INCEND...

Page 6: ...ante El no hacerlo puede llevar al disparo imprevisto de la pistola Difusor El difusor de la pistola dispersa el chorro pulverizado y reduce el riesgo de inyecci n cuando no est instalada la boquilla...

Page 7: ...la ga ma apropiada para comprobar la resistencia si excede los lites recomendados reemplazarla de inmediato Es muy arriesgado tener una manguera sin puesta a tierra o con la puesta a tierra en malas...

Page 8: ...elp relieve sys tem pressure and to help prime the sprayer Do not attach a spray hose to the drain valve doing so could result in costly damage to the pressure control PRESSURE CONTROL KNOB 1 4 NPT M...

Page 9: ...tal pail Put the pump suction tube in the pail 3 Be sure the pressure control knob is set at minimum and the drain valve is closed 4 Remove the spray tip from the gun 5 Disengage the gun safety latch...

Page 10: ...Then use a solvent soaked brush to clean the spray tip and to keep build up from drying and clogging the spray tip APPLICATION METHODS Always hold the gun perpendicular to the surface and keep the gun...

Page 11: ...irmly to the side of a grounded metal pail and trigger the gun to relieve pressure 5 Engage the gun safety latch 6 Open the drain valve having a container ready to catch the drainage Leave the drain v...

Page 12: ...NING PROBLEM CAUSE SOLUTION Electric motor won t run Power or extension cord is unplugged or build ing circuit fuse is blown Overload switch1 has opened Pressure setting too low Pressure control froze...

Page 13: ...int too viscous Wrong type of hose Increase Clean Change spray tip Fill and reprime Thin Use minimum 50 ft 15 2 m static free nylon hose only wire braid hose is un acceptable Paint runs or sags Spray...

Page 14: ...ng 55 down over the pin Screw the pump cylinder completely into the drive as sembly you will feel some resistance from the packings Now turn the cylinder back until the outlet nipple 22 faces back Scr...

Page 15: ...t en the nut 33 to 10 5 in lb 1 2 N m to seat the pack ings then back off the nut and hand tighten it Place a new ball 27 in the piston rod 47 Apply locking compound to the threads of the piston valve...

Page 16: ...replace both of them When installing the rod and the bearing coat the sur faces with SAE 10 non detergent motor oil Clean and inspect the crankshaft J Wipe it clean with a rag do not use solvent If t...

Page 17: ...r includes a new resis tor already installed ELECTRIC MOTOR WARNING To reduce the risk of serious bodily injury including fluid injection splashing in the eyes or on the skin injury from moving parts...

Page 18: ...mounting screws 8 See Fig 9 5 Pull the pressure control 74 away from the conduit 76 and carefully guide the leads through the con nector 75 one at a time See Fig 10 6 Remove the mounting bracket 77 Re...

Page 19: ...um setting 5 Plug in and turn on the sprayer Increase the pres sure setting just enough to start the sprayer Prime the hose and purge all air from the system 6 Open the needle valve a little more enou...

Page 20: ...820 319 TAG Caution 1 73 820 006 LABEL identification 1 74 820 321 PRESSURE CONTROL ASSEMBLY See page 22 for parts 1 76 820 473 CONDUIT electrical 4 in 77 820 324 BRACKET mounting 1 78 820 560 SCREW 4...

Page 21: ...located under the cover 119 DANGER LABEL FRENCH DANGER LABEL ENGLISH Ref 77 8 9 18 8 22 20 26 50 52 54 88 90 87 103 55 55 56 57 63 64 9 61 65 25 24 58 59 99 3 100 94 71 22 Ref 20 121 19 Ref 90 78 79 7...

Page 22: ...527 BUSHING strain relief 1 107 820 448 LOCKWASHER int No 8 1 108 820 528 CORD SET 1 109 820 529 NUT hex No 6 32 2 110 820 530 LOCKWASHER No 6 2 111 820 531 SCREW mach flat hd No 6 32 x 5 8 2 113 820...

Page 23: ...an extra kit on hand to reduce down time 43 47 27 33 32 30 29 45 49 40 28 41 48 36 42 38 37 35 34 46 31 39 ACCESSORIES French 185 955 Spanish 185 962 German 186 042 Greek 186 046 Korean 186 050 Englis...

Page 24: ...on inadequate or improper maintenance negligence accident tampering or substitution of non original equipment manufacturer component parts Nor shall The Sherwin Williams Company be liable for malfunct...

Page 25: ...y Hose Requirements grounded 50 ft 15 m minimum non wire braid spring guards on both ends Pump Material zinc plated carbon steel polyurethane tungsten carbide Delrin Pump Packing Material UHMW polyeth...

Page 26: ...1 820 311 Bearing Assembly 2 820 312 Connecting Rod 3 820 313 Drive Housing 4 820 317 Pinion Gear 5 820 621 Motor 5a 820 339 Capacitor 5b 820 704 Motor Fan 6 185 952 Danger Label 7 820 533 Cart 8 820...

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