DeVilbiss HD Series Service manual

SB-E-2-451 ISS.05
Technical Bulletin
HD range of Gravity Spray Guns

2© 2013 Finishing Brands UK Ltd.
Table of Contents
Topic Page
EC Declaration of Conformity 3
Part Numbers 3
Operational Description 3
Kit contents 4
Construction Features 4
Materials of Construction 4
Specifications & Technical Data 4
Safety Precautions 5
Parts List 6
Exploded parts View 7
Installation, Operation, Preventive Maintenance & Cleaning 8
Parts Replacement/Maintenance 9
A. Servicing Air Valve 9
B. Replacing Air Valve 10
C. Needle Packing, Fluid Insert, Spreader Valve Assembly 11
D. Spray Head Seal 12
E. Chart 1 –Air Caps, Chart 2 –Fluid Nozzles &
Fluid Needles 13
Troubleshooting Possible Problems in Operation 14
Accessories 16
Warranty 16

© 
013 Finishing Brands UK Ltd. 3
EC Declaration of Conformity
We, Finishing Brands UK Limited, Ringwood Rd, Bournemouth, Dorset, BH11 9LH, UK, as the
manufacturer of the Spray gun model GTi-HD and PRi-HD, declare, under our sole
responsibility that the equipment to which this document relates is in conformity with the
following standards or other normative documents:
BS EN 292-1 PARTS 1 & 2: 1991, BS EN 1953: 1999; and thereby conform to the
protection requirements of Council Directive 98/37/EEC relating to Machinery Safety Directive,
and;
EN 13463-1:2001, council Directive 94/9/EC relating to Equipment and Protective
Systems intended for use in Potentially Explosive Atmospheres protection level II 2 G X.
This product also complies with the requirements of the EPA guidelines, PG6/34. Transfer
efficiency certificates are available on request.
D. Smith, General Manager
31st January 2013
Finishing Brands UK Limited reserves the right to modify equipment specification without prior notice.
Part Numbers
The ordering code for the GTi-HD Spray gun is;
e.g. GTIGHD-T2-12 where;
T2 = T2 Aircap. Alternatives are T1, T3
12 = 1.2 Nozzle. Alternatives are 1.3 or 1.4
For the PRi-HD Primer Spray gun, the ordering code is;
e.g. PRIHD-P1P-16 where;
P1 = P1 Aircap
P = PRIMER Gun
16 = 1.6 Nozzle, Alternatives 1.4, 1.8, 2.0 or 2.5
Operational Description
This GTi-HD Spray Gun is a professional quality gun designed with both high volume, low
pressure (HVLP) technology or EPA compliant, Trans-Tech®technology. The PRi-HD Primer
Spray Gun uses only Trans-Tech®technology. HVLP Technology reduces overspray and limits
air cap pressure to 0.7 bar (10 psi). Trans-Tech®complies with EPA by obtaining transfer
efficiency above 65%.
IMPORTANT: These Sprayguns are suitable for use with both waterbased and solvent based
coating materials. These guns are not designed for use with highly corrosive and/or abrasive
materials and if used with such materials it must be expected that the need for cleaning and/or
replacement of parts will be increased. If there is any doubt regarding the suitability of a specific
material, contact your DeVilbiss Distributor or DeVilbiss direct.
NOTE: This gun is not to be used with halogenated hydrocarbon solvents or cleaning agents
such as 1,1,1,-Trichloroethane or methylene chloride. These solvents can react with the
aluminium components used in this gun and cup. The reaction can become violent and lead to
an equipment explosion.

4© 2013 Finishing Brands UK Ltd.
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i-HD or PRi-HD Gravity Feed Spraygun
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11
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coat systems)
12
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-Tech®
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(with cup)
545C
768g

© 
013 Finishing Brands UK Ltd. 5
WXYZ [\] Z^_`abXa\
Solvents and coating materials can be highly flammable or combustible when sprayed.
cdecfg hijih kl k mi nlokpqr sok
erial supplier’
t pqtkhunkplqt oqv wxgyy t miikt zijlhi
utpqr k mpt i{up|siqk}
~tiht sutk nls| pkm o lno oqv qokplqo nlv it lj |honkpni o qv pqtuhoqni nls|oq
hi{uphisiqkt rlihqpqr iqkpokp lq j phi |hinoukplqt l|ihokplq oqv mluti
-
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lhpqr
areas.
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x
tupkozi j lh uti pk m yolriqokiv yvhlnohzlqt}
Static electricity can be generated by fluid and/or air passing through hoses, by the
t|hopqr |hlnitt oqv z  nioqpqr qlq
-conductive parts with cloths. To prevent
prqpkplq
sources from static discharges, earth continuity must be maintained to the spray gun
and other metallic equipment used. It is essential to use conductive air and/or fluid
mltit}
Personal Protective Equipment
Toxic vapours –When sprayed, certain
sokihpot so z i |lptlqlut nhioki phhpkokplq lh
be otherwise harmful to health. Always read all labels, safety data sheets and follow any
recommendations for the material before spraying. If in doubt, contact your material
tu||pih}
The use of respiratory
|hlkinkpi i{up|siqk pt hinlss iqviv ok o kpsit} mi k|i lj
i{up|siqk sutk z i nls|okpzi pkm k mi sok ihpo zipqr t |hoiv}
Always wear eye protection when spraying or cleaning the spray gun.
Gloves must be worn when spraying or cleaning the equipment.
hopqpqr

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M
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iih i 
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recommended safe working pressure for the equipment.
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
recommended or non-original spares may create hazards.
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The product should be clean
iv utpqr o ruq
-
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immediately after cleaning is completed. Prolonged exposure to cleaning solutions can cause
damage to the product.
Noise Levels
The A-
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-
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itk} k pt
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Operating
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circumstances, such forces could result in repetitive strain injury to the operator
}