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Sealey HVLP742 User Manual

Sealey HVLP742
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INSTRUCTIONS FOR:
HVLP GRAVITY FEED
SPRAY GUNS
Thank you for purchasing a Sealey product. Manufactured to a high standard this product will, if used according to these instructions and
properly maintained, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS AND CAUTIONS. USE THIS
PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY
AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
MODEL No's: HVLP731, HVLP741.V2, HVLP742
1. SAFETY INSTRUCTIONS
Familiarise yourself with the application, limitations and potential hazards peculiar to the spray gun.
 WARNING!Disconnect the spray gun from the air supply before changing accessories, servicing or performing any maintenance.
 Maintain the spray gun in good condition (use an authorised service agent).
Replace or repair damaged parts. Use authorised parts only. Unauthorised parts may be dangerous and will invalidate the warranty.
Keep the spray gun clean for best and safest performance.
Ensure that the compressed air system can supply the spray gun air consumption for the model to be used.
 Wear approved safety respiratory protection and safety eye goggles.
 If spraying isocynate based finisher, wear approved respirator/clean air breathing apparatus and cover exposed skin with latex gloves and an
impervious hooded coverall.
Remove ill-fitting clothing. Remove ties, watches, rings and other loose jewellery and tie back long hair.
Locate the spray gun in a suitable work area. Keep area clean and tidy and free from unrelated materials and ensure that there is adequate
ventilation and lighting.
Keep children and unauthorised persons away from the work area.
When not in use, ensure that the air supply is turned off.
 Avoid unintentional operation of spray gun.
 The spray gun has been treated with an anticorrosive agent at the factory and MUST be flushed out thoroughly with thinner before use.
 DO NOT point spray gun at yourself, other persons or animals.
 DO NOT direct air from the air hose at yourself, other persons or animals.
 DO NOT carry the spray gun by the hose, or yank the hose from the air supply.
 DO NOT exceed the working pressure of 43psi (3bar).
 DO NOT use the spray gun for any purpose other than that for which it is designed.
 DO NOT allow untrained persons to operate the spray gun.
 DO NOT get the spray gun wet or use in damp or wet locations or in areas where there is condensation.
 DO NOT operate the spray gun if any parts are missing or damaged as this may cause failure and/or personal injury.
When not in use, disconnect the spray gun from the air supply, clean thoroughly and store safely.
2. INTRODUCTION AND SPECIFICATIONS
HVLP731 Gravity Feed
Touch Up Spray Gun
Ideal for blowing-in small
areas of panel where fine con-
trol of paint and air is necessary.
Anodized spray gun body
resists corrosion and makes
for easier cleaning. Brass air
cap with stainless steel needle
and nozzle make it suitable for
waterborne paint. Supplied
with 0.8mm set-up, 1.0mm
set-up is available separately.
Model No: .............................................................HVLP731
Supplied standard set-up: ...................................................... 0.8mm
Available set-ups: ................................................................... 1.0mm
Working pressure: ..........................................................43psi (3bar)
Air consumption: ................................................... 9.0cfm (255 l/min)
Pot capacity ............................................................................. 100ml
HVLP741.V2 / HVLP742
Gravity Feed Spray Guns
Round/flat fan control allows
the spray pattern to be adjusted
for any job. Anodized spray
gun body resists corrosion and
makes for easier cleaning.
The HVLP741.V2 Gravity Feed
Spray Gun has a brass air cap
with stainless steel needle and
nozzle make it suitable for
waterborne paint. Supplied
with a 1.3 set-up suitable for
topcoats. Other set-ups are
available separately as shown
below.
The HVLP742 Gravity Feed
Spray Gun has an aluminium
air cap with stainless steel
needle and nozzle make it
suitable for waterborne paint.
Supplied with 2.0mm set-up
suitable for primer. Other set-ups
are available separately as
shown below.
Model No: ......................... HVLP741.V2 ...............HVLP742
Supplied standard set-up:. .................. 1.3mm ........................2.0mm
Available set-ups: ........... 1.2, 1.4, 1.7, 2.0mm ................ 1.4, 1.7mm
Working pressure: ....................... 43psi (3bar) ............... 43psi (3bar)
Air consumption: .............. 15.0cfm (425 l/min) ....15.0cfm (425 l/min)
Pot capacity ...........................................600ml .........................600ml
Original Language Version
HVLP731, HVLP741.V2, HVLP742 Issue: 2 - 12/10/09
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Sealey HVLP742 Specifications

General IconGeneral
BrandSealey
ModelHVLP742
CategoryPaint Sprayer
LanguageEnglish

Summary

Safety Instructions for HVLP Spray Guns

Introduction and Specifications of HVLP Spray Guns

HVLP741.V2 and HVLP742 Gravity Feed Spray Guns

Round/flat fan control, anodized body, brass air cap with stainless steel needle/nozzle. Suitable for waterborne paint.

HVLP731 Gravity Feed Touch Up Spray Gun

Ideal for blowing-in small areas, fine control of paint/air. Anodized body, brass air cap with stainless steel needle/nozzle.

Air Supply and Coupling

Air Supply Requirements and Connection

Requires 43psi air pressure, clean air flow, and proper connection via leader hose to avoid vibration issues.

Coupling Recommendations

Connect leader hose to spray gun, use quick-fit coupling on leader hose to air line recoil hose to prevent vibration.

Spray Gun Operation Instructions

Spraying Technique and Distance

Hold gun perpendicular, move parallel. Start stroke before trigger, release after. Spray 6-10 inches away.

Controlling Fan Spray and Fluid

Adjust paint flow with needle knob, atomizing air with control knob, air input with adjustment knob.

Spray Pattern Adjustment

Turn air nozzle for horizontal/vertical fan spray. Lock with retaining ring for even coverage.

Cleaning and Maintenance Guide

Routine Gun Cleaning Procedure

Flush with solvent, brush parts, clean air nozzle, wipe exterior. Use soft tools for probing.

Re-assembly and Nozzle Set Fitting

Screw parts hand tight, check correct parts. Fit complete nozzle set (air cap, fluid nozzle, needle).

Troubleshooting Common Spray Gun Problems

Addressing Paint Spray 'Flutters'

Check for dried material in side ports or around fluid nozzle tip. Clean with solvent and blow dry.

Resolving Thin Material or High Air Pressure Issues

Regulate material viscosity or reduce air pressure if spray is too thin or atomization is poor.

Fixing Insufficient Paint or Loose Nozzle

Refill paint cup, clean nozzle seat, ensure nozzle set is tightly installed or replace if damaged.

Troubleshooting Paint Bubbles/Boiling

Check for atomised air in paint channel, tight paint nozzle, or fully screwed air nozzle. Tighten/clean parts.

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