SAMES KREMLIN FSTART Gravity User manual

FSTART Gravity
135756115 Gun FStart G HVLP-15-Mva
135756118 Gun FStart G HVLP-18-Mva
135756122 Gun FStart G HVLP-22-Mva
135756215 Gun FStart G CONV-15-Lva
135756218 Gun FStart G CONV-18-Lva
135756222 Gun FStart G CONV-22-Lva
II 2G Ex h IIB T6 X Gb
Translation from the original manual - Index A
582119110
SAMES KREMLIN SAS
13 Chemin de Malacher
38240 Meylan
Tal: 33 (0)4 76 41 60 60
www.sames-kremlin.com

2
1Table of Contents
1 Table of Contents...................................................................................................................... 2
2 Safety .......................................................................................................................................... 3
3 Declaration ................................................................................................................................ 7
4 Identification of the product................................................................................................... 8
4.1 Description of FSTART Gravity....................................................................................... 8
4.2 Description of the ATEX marking.................................................................................. 8
5 Technical data .......................................................................................................................... 9
5.1 Materials FSTART Gravity................................................................................................ 9
5.2 Air and fluid connections.............................................................................................. 9
5.3 Nozzle characterization principle.............................................................................. 10
6 Installation................................................................................................................................. 10
6.1 General Installation Diagram ..................................................................................... 10
6.2 Installation Diagram - Air pressure adjustment with or without gauge at gun
handle ........................................................................................................................................ 11
7 Storage...................................................................................................................................... 11
8 Start-up...................................................................................................................................... 12
9 Adjustment ............................................................................................................................... 12
10 Gun handling ........................................................................................................................... 13
11 Maintenance ........................................................................................................................... 14
11.1 Preventive maintenance ............................................................................................ 14
12 Assembly - Disassembly .......................................................................................................... 14
13 Assembly errors ........................................................................................................................ 15
14 Troubleshooting ....................................................................................................................... 15
15 Commercial references FStart Gravity ................................................................................ 17
15.1 Available Projectors – references P/Ns..................................................................... 18
15.2 Available Accessory – reference P/Ns ..................................................................... 18
15.3 Available Packages – references P/Ns..................................................................... 18
16 Maintenance Kit FStart Gravity 129756901.......................................................................... 19
16.1 Visual diagram.............................................................................................................. 19
16.2 Parts list and maintenance kit FStart Gravity (SPARE PARTS)................................. 20
17 Dimensions FSTART Gravity (Dimensions in MM) ................................................................. 21
18 Warranty ................................................................................................................................... 22
Any communication or reproduction of this document, in any form whatsoever, and any exploitation or
communications of its contents are prohibited, except with the express written permission of
SAMES KREMLIN.
The descriptions and characteristics contained in this document are subject to change without prior
notice.
© SAMES KREMLIN 2020

3
2Safety
Prerequisite
•The present equipment is for professional use only. It must be used
only for its intended purpose.
•Read the specified recommendations carefully:
-In the technical manuals of the equipment concerned.
-On device labels.
•Misuse or improper operation can cause serious injury.
Operator
training and
certification
•Personnel using this equipment must be trained in its use.
•The workshop manager must ensure that the operators fully understand all
instructions and safety rules for this equipment and the other components
and accessories of the installation. Furthermore, only authorized personnel
should be allowed to carry out production and maintenance operations
on the equipment.
Operators
safety
•These parts of PPE (Personal Protective
Equipment) are mandatory due to the risk of this process.
•Avoid abnormal postures and maintain a stable position in order to keep
your balance at all times, to better control the equipment in the event of
an unexpected event.
•Make sure that the workstation is neat and clean. Scattered or piled up
parts and tools are a source of an accident.
Products,
paints
•It is forbidden to use material containing high concentrations of
halogenated hydrocarbon solvents with aluminium or zinc fillers.
•Non-compliance with the instructions may cause explosion risk causing
serious or fatal injury.
•The user shall identify and prevent potential hazards inherent in the fluids
used, such as fire or explosion hazards, and toxicity hazards with serious
injuries through contact with the body, in the eyes, under the skin, or
through ingestion or inhalation.
•With regard to the fluids
and paints used with its equipment,
SAMES KREMLIN cannot be held responsible for direct or indirect material
damage caused in use, for the poor compatibility of the materials in
contact, for the inherent risks to personnel and the environment, for wear
and tear, for malfunctions of the equipment or installations and for the
quality of the finished product.

4
Ventilation
•It is imperative that the spray booths are properly ventilated to
prevent any high concentration of fluid or paint and maintain it lower
than the LEL (Lower Explosion Limit).
•If ventilation is shut off, toxic substances or contamination may remain in
the spray booth and cause a risk of fire, poisoning or irritation.
Toxicity •Depending on the fluid used, toxic and/or flammable vapors
may form.
•There is a danger of intoxication and burning due to the concentration of
these vapors.
Risk Fire,
explosion,
electric arc
•
Applicable laws and regulations regarding safety, fire and
electricity in the country where the equipment is used must be complied
with.
•The gun must be used in the areas for which it has been validated. Refer
to the ATEX section of the document.

5
Grounding
•In
order to prevent the accumulation of electrostatic
charges which could generate an electric arc in a flammable or
explosive environment, it is necessary that all conductive
components of the system are grounded.
•The gun must be 'grounded' via the fluid hose or the air hose.
•The equipment to be painted must also be "grounded" by means of
clamps fitted with cables or, if suspended, by means of hooks which
must be kept clean at all times.
•Follow the shutdown procedure and always depressurize air and
fluid circuits before carrying out any servicing on the gun (cleaning,
checking, maintenance of the fluid or cleaning of the gun nozzles)
•This gun is a precision tool. Its proper operation requires frequent and
careful maintenance.
•If it is carried out immediately after work, cleaning is easier and
quicker.
•Never use wire brushes, files or pliers for disassembly.
•Before cleaning or disassembling any component of the equipment,
it is imperative:
-to stop the pump by cutting off the compressed air supply,
-to decompress the hoses by pulling the trigger.
•Never store more than necessary inflammable materials inside the
working area
•The materials must be stored in approved drums and grounded.
•Use only grounded metals containers for cleaning solvents.
•Cardboard and paper are prohibited.
•The tanks of fluids and cleaners must be grounded via a grounding
cable, either by means of clamps or some
other means of
attachment.
•The parts to be painted are hung or placed by means of hooks or
supports which are grounded and kept clean at all times, in order to
always guarantee good conductivity to ground.
•All insulation (cardboard, paper, plastic materials) must be kept to a
minimum in the work area.
•The ground continuity must be checked by a qualified technician.
•Never operate the equipment without ensuring that all the above
safety requirements are met.

6
Pressure
•The use of pressurized air and fluids (paints or solvents)
presents risks for the user and the equipment.
•Never exceed the maximum working pressures of the equipment,
components and accessories.
•For all cleaning, inspection and maintenance operations on the
equipment, it is imperative to
follow the procedures for
decompression, shutdown, locking of any residual pressure,
elimination of residual static electricity charges and purging of fluids.
Surfaces, edges,
corners
•Some component surfaces may be hot during operation.
Skin contact with hot surfaces causes severe skin burns.
•Handle open or sharp-edged components with care. Wear
protective gloves.
Equipment
modification
•Under no circumstances should this equipment be modified or used
for purposes not intended.
•Parts and accessories must only be supplied or approved by SAMES
KREMLIN.
•SAMES KREMLIN cannot be held responsible for personal injury as
well as breakdowns and/or damage resulting from modifications to
the equipment.
•Any modification of equipment made by the user a
nd not
authorized by SAMES KREMLIN will result in loss of certification.

7
Environment
•Environmental risks must be controlled as follows:
-Respect an average temperature of use of the equipment and
products, which must be at least 5°C (41˚F), lower than the flash
point of the products and within a range of 0 to 40°C (32˚ to
104˚ F).
-
Ventilation of the area by forced extraction and supply of
unpolluted air is mandatory during operation of the equipment
and cleaning operations.
-Fragile parts of the installation, especially the flexible hoses,
must be protected from mechanical or thermal damage during
production or maintenance.
-
Wastes related to the operation or dismantling of the
equipment must be treated in accordance with the applicable
laws.
-The noise level of our equipment is limited to a
maximum. However, operators must be protected according
to the overall noise level of the environment. Depending on the
operating conditions, the sound volume of the equipment may
cause hearing problems. Use hearing protection and take
appropriate measures to reduce noise pollution.
-
Dispose of packaging materials in an appropriate and
environmentally friendly manner.
3Declaration
Refer to the declaration delivered with the equipment.

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4Identification of the product
4.1 Description of FSTART Gravity
Guns recommended to spray varnishes, lacquers, shades, polyurethanes.
4.2 Description of the ATEX marking
•Each device is marked with the name of the manufacturer, the reference of
the device and important information for the use of the device (air pressure,
electrical power, etc.).
•This equipment has been designed in accordance with the ATEX Directive
2014/34/EU and is intended for use in Zone 1.
SAMES KREMLIN
FRANCE Name and address of the manufacturer
CE
II 2 G
CE: European conformity: for use in explosive
area
II: group II 2: class 2 G: gas
Surface equipment meant to an area where
explosive atmospheres due to gas, vapours, mists
are liable to appear from time to time in usual
operating.
On the body
Ex h IIB T6 X
Ex
:Marking of conformity with European standards
h: Mode of protection for non-electrical device
IIB :Gas group
T6 : Temperature class
- Maximum surface temperature : 85°C / 185° F
X : Special conditions that apply for a safe use.
Refer to instructions listed in the instruction manuals
accompanying your purchase.
Gb Gb : Equipment protection level (Gas zone1)
20xx Marking of the manufacturing year (with 4
characters)
FSTART
Type xx Gun model
P air : 6 bar / 87 psi Gun air supply maximum pressure

9
5Technical data
FSTART G CONV FSTART G HVLP
Version Gravity
Maximum air supply pressure
(network) 6 bar / 87 psi
Fluid supply maximum pressure 6 bar / 87 psi
Air flow rate 23,3m3/h 20,4m3/h
Air pressure at the gun handle 3 bar / 43.5 psi 2.2 bar / 31.9 psi
Weight with cup 548 g 546 g
Weight without cup 410 g 408 g
Noise level 84 dBA 80 dBA
Maximum ambient operating
temperature 50°C / 122°F
5.1 Materials FSTART Gravity
Gun body Chrome die-cast aluminium
Head clear anodised aluminium
Nozzle INOX (stainless steel)
Needle INOX (stainless steel)
Gravity cup Plastic
5.2 Air and fluid connections
Gun Fittings mounted on the gun
(depending on model)
Air
and fluid supply
Air Fittings: M 1/4 NPS
Air hose (anti-static grounding)
HVLP: minimum Ø 8 mm ID (for a 7.5 m /
24.6 ft length)
CONV: minimum Ø 7 mm ID (for a 7.5m /
24.6 ft length)
Fluid Gravity cup (0.6 liter) Gravity cup (0.6 liter)

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5.3 Nozzle characterization principle
Nozzle parameter
Technology
Nozzle size
H: HVLP
C: CONVENTIONAL
•
15 : 1.5 mm
•18 : 1.8 mm
•
22 : 2.2 mm
6Installation
6.1 General Installation Diagram
A- Explosive
area
Area 1 (Z1)
or area 2
(Z2) : spraybooth
B – Non
explosive
area
1 - Pump 2 – Airspray
gun
3 – Fluid
product
4 -
Antistatic
air hose
5 – Air
regulator
The 1 m / 39.37" distance indicated in the diagram is given for
information/reference purposes only and implies no commitment by SAMES KREMLIN. The
user is responsible for the ventilation and conditioning of the painting area where the
equipment is used, under working conditions.

11
The 1 m / 39.37" distance may be modified if trials carried out by the user indicate this is
necessary.
• Using the grounding air hose, connect the gun to an air regulator that can supply
at least 3 bar / 43.5 psi.
• Using the fluid hose, connect the gun fluid fitting to the pump. Tighten the fittings
firmly.
Note: In some particular cases, if the air hose (4) is not conductive, the fluid hose
(3) must be conductive. One of the 2 gun hoses (air or fluid) must be conductive.
6.2 Installation Diagram - Air pressure adjustment with or without
gauge at gun handle
1 - P 0 : Air pressure
(wall)
2 - Air hose
7Storage
Our equipment must be stored in its original packaging.
In case of prolonged storage, it is preferable to carry out preventive maintenance for all
lubricants before startup.
Storage before installation
•Storage ambient temperature 0 / +50 °C (32° F / 122° F°).
•Protect the complete unit from dust/dirt, water/condensation, moisture, vibration
and shock.
•Do not remove the packaging until just before assembly.
Storage after installation
•Protect the unit from dust/dirt, water/condensation, moisture and shock.
3 - P 1: Pressure
measured at
gun grip
in the course of
operation
(air needle
open)
4 – Guns, model
FSTART Gravity

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8Start-up
•Assemble the head on the gun by positioning it according to the desired
spray orientation.
•Open at the maximum the air needle.
•Open the fluid needle as far as it will go without a stop.
•Connect the air hose.
•Assemble the cup.
•Pull the trigger and check that the air is circulating normally.
9Adjustment
This professional spray gun features 3 controls:
Spraying fineness
•Air is fed by the central air.
•The air is adjusted by means of the air regulator mounted upstream of the gun on
the network and more precisely by means of the knob at the bottom of the gun
handle on some manual guns.
Fan width
•Fan width is adjusted by using the knurled knob.
•It controls the air going to the horns on the aircap. In this way, the air is controlled
through the fanned air outlets and allows the fan to change from flat (wide
open) to round (closed).
Fluid output
•Having selected the proper fluid nozzle / needle assembly and the fluid pressure,
it is possible to:
•Further control the output by changing the travel of the needle (using the needle
stop knob).
•Optimal set-up is usually obtained when the fluid needle is completely open.
•When this needle is nearly closed, a constant flow of fluid cannot be
guaranteed.

13
10 Gun handling
When assembling the aircap on the gun, hold it vertically in order to correctly align
the aircap before screwing the aircap ring. Keep the gun perpendicular to the
surface to be painted. Avoid working with the wrist.
Proper position
•Do not forget that crossed sweeps cannot correct irregularities.
•Spraying from a stationary gun will not give you even coverage. Start the pass
and trigger just before the leading edge. Release the trigger before the pass
ends, just after the trailing edge of the object.
•Make sure that overlapping from the passes is even.
Improper position

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11 Maintenance
11.1 Preventive maintenance
Daily
•Check groundings.
•Clean the outside of the spray nozzle with a soft brush and solvent.
•Flush the spray gun.
•When the spraying system will not be used for an extended period of time, take
off the nozzle and immerse it in a solvent-filled container.
Weekly
•Check leakage from the fittings.
Monthly
•Check hoses.
•Operate the valves.
•Remove the air valve, clean it if necessary. Grease it as well as the spring before
assembling.
•Remove the needle as well as the rear line and the complete air valve. Clean
the parts and grease them before assembling.
Annual
•Change the air valve.
•Grease the air valve as well as the spring, before assembling.
•Remove the gun, clean the parts, change the seals and any defective parts.
Grease them before assembling (refer to seal kit and servicing kit).
Note: Frequencies are given as an estimate. They must be adapted by the
maintenance service of the user for every installation depending on the fluid, the
workload and the working pressure.
12 Assembly - Disassembly
Before removing a component of the gun, some precautions have to be taken:
•Shut off the fluid pressure,
•Empty out the paint inside the cup or the receiver and clean it,
•Fill the cup or the receiver with cleaning solvent,
•Take off the gun spraying air cap,
•Shut off the gun supply air pressure,
•Adjust fluid pressure to 0.5 bar / 7.25 psi and let the solvent circulate,
•Shut off the fluid pressure,
•Remove the part to be cleaned or changed.
Before reassembling the different components, some precautions must be taken:
•Clean all the parts with the appropriate cleaning solvent and a brush.
•Install new seals if necessary after having lubricated them with PTFE grease.
•Install new parts if necessary.

15
13 Assembly errors
The use of improper replacement or defective parts may result in hazards to
personnel, damage, malfunction or general shutdown of the equipment.
14 Troubleshooting
Distorted
spray
Slightly unscrew the aircap retaining ring and rotate the
aircap by one half turn. If the defect is reversed, one of the
lateral air holes is plugged up or deformed. Clean the gun
aircap with solvent and unclog the air holes with
compressed air. If the problem is not resolved, it means that
the fluid nozzle is damaged.
Displaced
spray
This comes from a defect in the central fan. Clean the
aircap and the fluid nozzle. Make sure that :
•the aircap is correctly centered on the nozzle,
•the nozzle is not too big for the needle,
•When work is done with a large needle opening and the
needle almost closed, the spray pattern is not even in all
directions.
Fragmented
pattern
The fan air pressure is too high at the holes in the air cap
horns :
•turn the fan air control clockwise to reduce the fan air
pressure,
•increase the paint output.
Fan too thick
in the center
This is the reverse of the above defect :
•the paint output is too high for the selected air pressure :
•increase the spraying air pressure and reduce the paint
output.
•if the paint is too thick, dilute it.
Intermittent
spray pattern
An air inlet in the paint circuit creates an intermittent
pattern when:
•the paint cup is nearly empty,
•when the nozzle is not tightened on its seat: clamp it.
If the problem persists, remove the nozzle and clean it.
•Check that the seat and the cone are not damaged,
remove the nozzle and clamp it.
•Check that: the cup cover air hole is not blocked and
the paint is homogeneous and fluid enough (use the
viscosity cup).

16
Trouble Cause Solution
•No fluid out of the gun. •Clogged nozzle •Cut the pressure on the
pump. Depressurize the
hoses.
•Remove and clean the
nozzle with solvent by means
of the brush.
•Check the seal condition.
•Pattern width narrows
during reversing phase
of pump
•Air trapped in the fluid
circuit
•Check connections and
suction hose quality.
•Viscosity too high •Reduce viscosity.
•Aircap becomes dirty
frequently
•Too much atomizing air •Reduce air pressure.
•Fluid seeping from the air
holes of the aircap
•Defective tip seal •Replace it.
•Tip loose •Tighten it.
•Fluid leak at the packing •Packing is worn •Tighten up the packing
holder without blocking the
needle.
•If there is still a leak, replace
the packing and the needle.
•Fluid leak at the front
part of the gun, trigger
released
•Impurities in the paint •Trigger the gun 3 or 4 times.
•Needle worn or/and
nozzle worn
•Replace needle and nozzle.
•Air leak at the valve •Valve worn •Change the valve.
•Permanent air leak at
the gun aircap when the
trigger is released
•Friction on the needle •Remove the trigger and
check the needle.
•Valve worn •Replace the valve.

17
15 Commercial references FStart Gravity
Principle of designation
FStart
G
HVLP
-
22
-
Lva
135756115 Gun FStart G HVLP-15-Mva
135756118
Gun FStart G HVLP-18-Mva
135756122 Gun FStart G HVLP-22-Mva
135756215
Gun FStart G CONV-15-Lva
135756218 Gun FStart G CONV-18-Lva
135756222
Gun FStart G CONV-22-Lva
G=Gravity
HVLP
(High volume, Low pressure)
CONV
(Conventional)
Nozzle size:
•15 : 1.5 mm
•18 : 1.8 mm
•22 : 2.2 mm
Lva or Mva
Maximum fan width at 20 cm
L: 30 - 40 cm
M:20 - 30 cm
Fan shape
v: Flat shape
Material
a: Aluminum

18
15.1 Available Projectors – references P/Ns
FStart G
projectors
132756110 Aircap FStart G HVLP-15 22-Mva
131756115 Nozzle + Needle FStart HVLP-15
131756118 Nozzle + Needle FStart HVLP-18
131756122 Nozzle + Needle FStart HVLP-22
132756210 Aircap FStart G CONV-15 18-Lva
131756215 Nozzle + Needle FStart CONV-15
131756218 Nozzle + Needle FStart CONV-18
132756220 Aircap FStart G CONV-22-Lva
131756222 Nozzle + Needle FStart CONV-22
15.2 Available Accessory – reference P/Ns
Accessory 129756928 Gravity Plastic cup for FStart
15.3 Available Packages – references P/Ns
Packages
152756280 Pack Airspray Lucky "FStart G HVLP + air hose"
152756380 Pack Airspray Lucky "FStart G CONV + air hose"

19
16 Maintenance Kit FStart Gravity 129756901
16.1 Visual diagram
Maintenance kit FSTART gravity 129756901 consisting of
A
Needle packing 129.756.903
B
Trigger set + Air adjusters 129.756.906
C
Rear line assembly 129.756.904
27
28
25
23
11 12
9
20
4
18
19
10
24
8
17
29
9
2
16
1 3
13
26
1514
7
5
6
21
22
C
C
B
B
B
A

20
16.2 Parts list and maintenance kit FStart Gravity
(SPARE PARTS)
Positions Designation Quantity
Included in Maintenance
Kit
129756901
8
Needle packing
1
129.756.903
Needle
packing
A
9 Packing gasket 2
10
Needle packing screw
1
5
E-ring
1
129.756.906
Trigger set +
Air adjusters
B
6
Trigger stud
1
7 Trigger 1
11
Air adjustment valve set
1
26 Pattern adjustment valve set 1
13
Needle set
1
129.756.904
Rear line
assembly
C
14 Spring 1
17
Seal
1
18 Spring seat 1
19
Spring
1
20 Air valve set 1
21
Air valve packing
1
22 Packing bushing 1
23
Sleeve
1
24
O-ring
1
25
Gasket
1
29
O-ring seal
1
1
Air cap ring
1
2
Nozzle
1
3
Baffle
1
4
Gun body
1
12
Air connector
1
15
Fluid adjustment screw
1
16
Fluid adjustment seat
1
27
Packing gasket
1
28
Fluid connector
1
Accessory required for assembly/disassembly
Designation
Visual
Wrench supplied with the FSTART Gravity