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Manuel d'utilisation du pistolet de pulvérisation JGX-502
- JGX-502 Manuel d'utilisation du pistolet de pulvérisation [ japonais ]
Important：Read and follow all instructions and SAFETY PRECAUTIONS before using this equipment
Description
The JGX-502 Spray Gun is a conventional air spray gun, patterned after the JGA series, whose functions are similar to
standard air spray gun models. The gun is available in three types: gravity feed, suction feed, and pressure feed, in order to
cover the widest range of applications.
With all areas of the fluid passages made from stainless steel, the JGX-502 can be used with a wide range of paints, with the
only exception being those of a highly corrosive and/or abrasive nature. The use of such materials will require thorough
cleaning and frequent part replacement.
Any questions regarding the operation of the JGX Spray Gun should be directed to us or our distributors BEFORE use.
MODELS
JGX-502 - Air Cap No. - Fluid Tip Size – Type of Feed
(Ex.)： JGX-502-143-FF-G
This represents a gun with a number 143 Aircap, a Size FF Fluid Tip, and set up for Gravity Feed.
SPECIFICATIONS
Air and Fluid Inlet Threads：
Fluid Suction/Pressure Feed
PF3/8 Male, standard
PF1/4 Male, Optional
Air Inlet PF1/4
Weight Suction/Pressure Feed 440g
OPERATION
Before using the gun, the needle packing, which is shipped loose to avoid binding, should be adjusted.
The packing gland (Part#7) should be gradually screwed clockwise while triggering the gun up to the point where the needle
does not smoothly return to the closed-position. At this point the packing gland should be slightly loosened by screwing it in
counter-clockwise so that needle moves freely.
Adjust the atomizing air pressure to the lowest level possible and commensurate with proper atomization quality desired, to
minimize overspray and maximize paint transfer efficiency.
The spray gun should be used at all times perpendicular to the surface to be coated at a distance of 150-200mm.
JGX-502 Spray Gun
Operation Manual
2
Maintenance
The gun should be cleaned and lubricated daily to maintain daily to maintain its optimum performance. Clean the paint
passages thoroughly by spraying solvents through the gun after use.
The gun body should never be soaked in the solvent for cleaning. Exterior surface should only be wiped with solvent
dampened rags.
The air caps should be detached from the gun and soaked in the solvent.
Use toothpicks to remove any paint build up from the aircap holes. NEVER use metal objects to clean the aircaps in order to
avoid damage to the fine holes, which will cause the spray pattern to become distorted.
A drop of lubricant should be applied regularly to the trigger bearing stud (#25), the stem of the air valve assembly(#21), and
the needle packing gland (#7). For optimum results use SSL-10 Spray Gun Oil.
The Needle Spring (#11) and the Air Valve Spring (#22) should be lightly greased. Do not lubricate or grease excessively in
order to avoid clogging in the air passages.
REPLACEMENT OF PARTS
A wrench (JGX-34) is provided with the gun.
When replacing the fluid tips, ensure that the Fluid Needle Adjustment Screw is moved, and also ensure that the Spreader
Valve is in the fully open (counterclockwise) position.
Whenever the Fluid Inlet Nipple (#23) or the Air Inlet Nipple (#28) are replaced, a sealant material such as Loctite 242, should
be applied to the thread before inserting it into the gun body. The same sealant should also be used on the body thread of the
Spreader Valve (#13) and the Cheater Valve (#27).
Chart 1 : Aircap-Fluid Tip Combination
Aircap Fluid Tip Size
No. on CAP Code Part No. Gun Type GY FX FF EX
103
143
165
803737
803739
803740
JGX-3-103
JGX-3-143
JGX-3-165
S,G
S,G
P
V
V
V
V
V
V
Chart 2 :Selection of the Fluid Tip and the Needle
Fluid Tips Fluid Needles Gun Type
No. on CAP Size(mm) Code Part No. Code Part No.
GY
FX
FX
FF
FF
EX
0.8
1.1
1.1
1.4
1.4
1.8
803775
803786
803747
803787
803748
803749
JGX-4-GY
JGX-401-FX
JGX-4-FX
JGX-401-FF
JGX-4-FF
JGX-4-EX
803750
803751
803751
803752
803752
803753
JGX-41-GX
JGX-41-FX
JGX-41-FX
JGX-41-FF
JGX-41-FF
JGX-41-EX
G,S
G,P
S
G,P
S
G,S
Notice : The fluid tip of Suction Feed gun and GY Tip (0.8m/m) is not with soft-seat.
Chart 3 :Fluid Inlet Description
Paint Supply Thread Code Part No. Remarks
S,P
S,P
G
PF3/8
PF1/4
PF1/4
803767
803768
803769
JGX-1
JGX-35
JGX-2
------
optional
------
3
PARTS LIST
# Code Part No. Description pcs # Code Part No. Description pcs
1 803736 JGX-5 Retaining Ring 1 13 803760 JGX-44 Spreader Valve Assy. 1
803735 JGX-6 Retaining Ring, brass(Optional) 1 17 803764 JGX-43 Air Valve Assy. 1
2 See Chart1 Air Cap 1 19* ----- ----- Packing 1
3 See Chart2 Fluid Tip 1 20* ----- ----- O-Ring 1
4 803741 JGX-7 Baffle 1 22 803778 JGX-25 Spring 1
5* 803783 JGX-8-K5 Gasket (a set of 5 pcs.) 1 23 See Chart3 Fluid Inlet Nipple 1
6* 803855 JGV-463 Needle Packing (2piece) 1 24 803916 JGS-108-1 Trigger 1
7 803784 JGX-11-K3 Packing Gland (a set of 3pcs.) 1 25 803567 JGX-45-K5 Bearing Stud (a set of 5pcs.) 1
8* ----- ----- Gasket 1 26* 805281 JGX-46-K10 Circlip (a set of 10pcs.) 1
9 803745 JGX-12 Bushing 1 27 803771 JGX-42 Cheater Valve Assy. 1
10 See Chart2 Fluid Needle 1 28 803772 JGX-30 Air Inlet Nipple 1
11 803785 JGX-14-K3 Needle Spring (a set of 3pcs.) 1 29 803773 JGX-34 Wrench 1
12 803759 JGX-13 Adjusting Screw 1 803733 JGX-101 Repair Kit 1
ACCESSORIES
OM_HG_JGX-502-E01_2025.05
Part No. Description Part No. Description
TLC-555 1Suction Cup (with PTFE Coated Inner Lining) HD-505-W 5 Gun & Hose Cleaner
KG-400 400cc Side Cup with Stand (Gravity Feed) JGX-101 Repair Kit
KG-400-T
400cc Side Cup with Stand (with PTFE Coated
Inner Lining, Gravity Feed)
SSL-10
Spray Gun Lubricant. Silicone-free,
Non-petroleum product
KB-555 KB-555 2 Pressure Feed Remote Cup HAF-507 Disposable Air Line Filter
KR-470-1 700cc Suction Cup Assembly
