DEMI 2Operation Manual

Read and follow all instructions and SAFETY PRECAUTIONS before
using this equipment.

DEMI2

Table of Contents
MODELS........................................................................................................ 3
SPECIFICATIONS.......................................................................................... 3
PARTS LIST................................................................................................... 4SAFETY PRECAUTIONS.............................................................................. 5
INSTALLATION.............................................................................................. 6
OPERATION.................................................................................................. 6
PREVENTIVE MAINTENANCE..................................................................... 6
REPLACEMENT OF PARTS......................................................................... 7
SERVICE CHECKS........................................................................................ 8
ACCESSORIES.............................................................................................. 92

DEMI2MODELS
DEMI2 – Air CapNo. – Fluid Tip Size – Type of Feed G : Gravity(Ex.) : DEMI2-DL8-1.1-G ← (DL8 Air Cap - Size1.1mm - Gravity)

SPECIFICATIONS
Maximum Working Air Pressure: 0.69 MPa, Maximum Working Fluid Pressure: 0.69 MPa
Weight:190g
Fluid inlet : G1/4

Air inlet : G1/4

Chart. 1
Air Cap No.

Type of FeedPart Number
DL8DM2-3-DL8

GDL6
DM2-3-DL6

GDR1
DM2-3-DR1

GAir consumption Gun

Pattern width (mm)inlet pressure
80l / min
0.10MPa
60l / min
0.10MPa
20l / min
0.10MPa

14090
Round

Chart. 2
Fluid Tip

NeedleTip size

Part Number

Part Number(mm)DM2-4-1.1

DM2-41-1.1

1.1

Spot, Touch-up

DM2-4-0.8

DM2-41-0.8

0.8

Spot, Touch-up

DM2-4-0.5

DM2-41-0.5

0.5

Deodorant, Hobby

3

Application

DEMI2PARTS LIST
Chart 3Ref.

Part Number

Description

Qty

No.
1DM2-6

Retaining Ring Assy.

12

DM2-55-K5

Ring Seat Kit of 5

13

Refer to "Chart.1"

Air Cap

14

Refer to "Chart.2"

Fluid Tip

15DM2-35

Paint Nipple(with Seat)

16DM2-44

Pattern Valve

17DM2-443

Air Seal Kit

18DM2-43

Air Valve

19DM2-25-K5

Valve Spring Kit of 5

110DM2-12

Air Valve Bushing

111

Refer to "Chart.2"

Needle112DM2-14-K5

Needle Spring Kit of 5113

DM2-13

Needle Adjusting Knob

114DM2-463

Needle Packing

115

DM2-45

Bearing Stud Kit

116

DM2-108

Trigger

117DM2-42

Cheater Valve

118DM2-30

Air Connector

14DEMI2

SAFETY PRECAUTIONSThis manual contains information that is important for you to know and understand. This
information relates to USER SAFETY and PREVENTING EQUIPMENT PROBLEMS. Read andfollow SAFETY PRECAUTIONS before using this equipment.

■■FIRE OR EXPLOSION HAZARD
1.

When spraying, adequate exhaust must be provided to keep air free of accumulations offlammable vapors which may cause fire or explosion.

2.
3.

Smoking must never be allowed in the spray area.
Static electricity is generated and a static spark could be produced in the spray area. To
prevent the risk of fire or explosion, ground without fail all conductive objects in the sprayarea.

4.
5.
6.

Make it sure to use and ground hoses with static wire for spray gun operation. If
improperly grounded, a static spark possibly produced may cause fire or explosion.
Fire extinguishing equipment must be provided in the spray area.
Solvents used for cleaning must have a flash point equal to or higher than that of thecoating. Those for general cleaning must have flash points above 37.8°C(100°F) toprevent the risk of fire.

■■INHALING TOXIC SUBSTANCES1.

2.
3.

Toxic vapors and liquids are harmful to health. When spraying, adequate exhaust must be
provided to keep the air free of accumulations of toxic materials and the use at all times ofrespiratory protective equipment must be set compulsory.
Always wear eye protection when spraying or cleaning the equipment.
Certain materials may be harmful if there is contact with the skin. Read carefully all thelabels and safety performance data of the materials and solvents to be used. Appropriate
clothes and gloves must be worn for spraying or cleaning the equipment.

■■MISUSE
1.

Operators should be given adequate and appropriate training in the safe use andmaintenance of this equipment.

2.
3.

Pressured liquids may injure eyes. Do not point the spray gun to any person.
Gravity or suction feed gun must not be used for pressure feed gun.

4.

Parts with compressed air may damage the human body. Connect air hoses tightly byusing a spanner so that air never leaks. If tightened loosely, hoses can be removed which

5.

may result in damaging the human body, objects to be coated and other equipment used
together.
Parts with compressed air or under spring pressure may injure the human body.Whenreplacing such parts, clean the spray gun by discharging the materials, discharge the air,6.

remove air hose and fluid cup and then replace such parts by placing the gun flat. Eyeprotection must be worn when repairing the spray gun.
Do not use the gun at no more than maximum working pressure (0.69MPa).

5DEMI2INSTALLATION
1.
2.

The air supplied to spray gun must be cleaned air which any water, oil and solid material
removed. To set up the Mist Separator and Air Transformer near the gun is recommended.
The use of air not cleaned may cause coating troubles.
Connect fluid cup and air hoses tightly. If tightened loosely, hoses can be removed which
may result in damaging the human body, objects to be coated and other equipment used
together.

OPERATION
1.

2.
3.
4.

The recommended pressure of air supplied to gun is in a range of 0.15MPa-0.20Mpa.
Do not supply to gun the air pressure in excess of the gun’s maximum working pressure(0.69MPa).
Try with the pressure starting from 0.1MPa - 0.2Mpa or around as the spraying pressure
varies depending upon the inner diameter of gun, triggering distance, materials etc.
The recommended spray distance is 150mm. If the spray distance is too far, good result
does not appear.
In order to get uniform finishing the spray gun should be hold vertically toward the painting
surface.

PREVENTIVE MAINTENANCE
1.
2.
3.

4.

Daily lubrication and cleaning is necessary to maintain the best condition of the gun.
To clean the gun body, wipe exterior with solvent dampened cloth. Do not submerge thegun body in solvent as any solids may get into the air passage and cause troubles.
Do not leave the gun with solvent in fluid cup. Clean the spray gun after used with clean
solvent and empty the cup. To clean the fluid cup, after removing extra paint, through theappropriate solvent and flush down the residual paint.
The Air Cap can be immersed in solvent and brushed down for cleaning. If orifices areclogged, use a toothpick to remove obstruction. Never use a steel wire or hard instrument.
This will damage air cap and result in a distorted spray pattern.

5.
6.

7.

Do not immerse any plastic parts in solvent for long time.
Certain portions of gun should be lubricated. Do not lubricate to any portion wherenot instructed. For lubrication, SSL-10 Gun Lube* is recommended (*sold separately,
vegetable not repelling materials).
The following portions should be lubricated regularly; Trigger Stud (15), Pattern Valve(6), threads of cheater Valve (17) and Adjusting Screw (13), Air Valve (8) stem, portion ofPacking Gland (14) here Needle (11) comes in and out.

8.
9.

When installing Air Cap (3), make sure no foreign materials adhered on Retaining Ring (1)and thread of body and then oil one drop of Gun Lube SSL-10.
Apply non-silicone grease lightly on Needle Spring (12) and Air Valve Spring (9). Do not
apply too much grease as it may clog the air passage.

6

DEMI2

REPLACEMENT OF PARTS
Before replacing gun parts, remove materials from the gun for cleaning. Then release the airpressure in the gun and disconnect air hoses. All repairs should be made on a clean flat surface.
Use only appropriate tools indicated for replacement of parts.

Fluid Tip (4) and Needle (11)1.
2.

It is recommended to replace Fluid Tip (4) and Needle (11) as a set.
Loosen completely Pattern Valve (6) by turning the knob counterclockwise.

3.

Remove Adjusting Screw (13) and Needle Spring (12) and then withdraw Needle (11) fromthe gun body.

4.
5.

Remove Retaining Ring (1) and Air Cap (3).
Remove Fluid Tip (4) by using socket wrench, offset wrench or the spanner .

6.

Recommended torque of Fluid tip is 8N·m when you re-assemble.

Fluid Inlet and Air Connector (18)
Fluid Inlet and Air Connector (18) are fixed together by sealing material. Do not disassemble
these connectors if it is not necessary. It may become a cause of problem.

Pattern Valve (6) and Cheater Valve (17)When disassembling and reassembling Pattern Valve (6) and Cheater Valve (17), turn the knobs
completely counterclockwise and then disassemble or reassemble them.

Air Seal Kit (7)
1.

4.
5.

Remove Needle Adjusting Screw (13) and Needle Spring (12) and then withdraw Needle(11) from the Gun Body (8).
Remove Air Valve Bushing (10), Valve Spring(9), Air Valve (8).
From the back of the Trigger (16), push the front part of the Air Seal Kit toward the back ofthe gun to remove it.
Hook the rear part of the Air Seal in the Air Valve Bushing (10) using a thin wire to remove it.
Do not reuse the removed Air Seal because usually it has been damaged.

6.

Attach the new Air Seal, and then insert it into the body and Bushing. See the exploded

2.
3.

view and be careful of the installation direction when attaching.

Needle Packing (14)1.
2.

Remove Bearing Stud kid (15) and Trigger (16) using flat-blade screwdriver.
Remove Fluid Adjusting Knob (13) and Needle Spring (12) from gun, and then remove

3.

Fluid Needle (11).
Loosen and remove the Packing (14) using wrench .

4.

Re-assembling the Packing (14). Assemble into gun body by hand and then tighten using
the wrench.

5.
6.
7.

Insert Fluid Needle (11), and then Needle Spring (12), and Needle Adjusting Knob (13).
Re-assembling Bearing Stud kid (15) and Trigger (16) using flat-blade screwdriver.
Trigger the gun several times to verify correct operation and adjust the packing by using
the wrench.

7DEMI2SERVICE CHECKSNormal spray patternproblem

CauseWill not spray

Correction

No pressure to gun.

Check air and material lines.

Adjust ing Screw (13) not properly adjusted. Adjust.
Inproper spray pattern A,B : M aterial build up on the Air Cap or A,B : Clean the Air Cap or Fluid
Fluid Tip.
Tip.
A

B

C

D

C,D : Incorrect fluid delivery or viscosity.

C,D : Adjust.

Jerky or fluttering
spray

Insufficient material in the cup or Loose Fill cup or tighten the Connector.
connector.
Clean.
Gun material passage plugged.
Replace.
Worn Needle Packing (14).
Tighten or replace.
Loose or damaged Fluid Tip (4).

Fluid leaking fromneedle packing nut(14)Loose of Needle Packing (14)Tighten Needle Packing (14).

Worn or damaged Needle Packing (14).

Tighten or replace.

Dripping from fluidtip(4)W o r n o r d a m a g e d F l u i d T i p (4) o r Replace.
Needle(11).
Stuck Needle Packing (14) or Needle(11).

Lubricate.

Incorrect adjustment of Needle Packing (14) Hold the end of the Needle (11)with your hand to adjust. Fix it but
leave some space so that it canstill move a little bit.
Loose Adjusting Screw (12)8Adjust.

DEMI2ACCESSORIESPart No.

Description

KG-250-DEMI

Stainless Steel Gravity Cup with Stand for DEMI gun (250cc) SUS

KG-250-FA-DEMI

Gravity Cup with Stand for DEMI gun (250cc Free angle type) SUS

KG-150-FA-DEMI

Gravity Cup with Stand for DEMI gun (150cc Free angle type) SUS

DAH-10Air Hose Set (10m)DAH-20Air Hose Set (20m)

HAV-503-B

Air Adjusting Valve with Gauge

HAF-507

Disposable Air Filter

SSL-10Gun Lube (60ml)

42884-214-K5

Cleaning Brush (kit of 5)

SHIM-3

SHIM MASK

D803553-K12

Anti-Static Wiper (kit of 12)

9DIVISION

Ransburg Japan KK
15-5, Fukuura 1-chome, Kanazawa-ku, Yokohama, Kanagawa Japan 〒236-0004
TEL : +81-45-785-6434 / FAX : +81-45-785-6517

HP http://www.carlisleft.co.jp®DEVILBISS is a registered trademark of Carlisle Fluid Technologies.

©2017 Carlisle Fluid Technologies.