Kremlin-Rexson Airmix Bedienungsanleitung

INSTRUCTION MANUAL

AIRMIX PUMP and LOW-PRESSURE PUMP

air motor with reversing block

Manual : 0306 573.002.212

Date : 12/06/03 – Supersedes : 17/06/02

Modif. § 1 + § 4 added

KREMLIN REXSON – Site de Stains : 150, avenue de Stalingrad

93 245 - STAINS CEDEX - FRANCE

Téléphone : 33 (0)1 49 40 25 25 Fax : 33 (0)1 48 26 07 16

KREMLIN Page 1 Manual : 573.002.212

INSTRUCTION MANUAL

AIRMIX PUMP and LOW-PRESSURE PUMP

air motor with reversing block

SUMMARY

1. EC DECLARATION OF CONFORMITY...................................................................................................... 2

2. GENERAL SAFETY INSTRUCTIONS ........................................................................................................ 2

3. OPERATING PRINCIPLE............................................................................................................................ 3

4. INSTALLATION ........................................................................................................................................... 4

5. START UP.................................................................................................................................................... 5

6. SHUTDOWN AT THE END OF THE WORK...............................................................................................7

7. MAINTENANCE........................................................................................................................................... 7

8. SAFETY DEVICE......................................................................................................................................... 8

9. TROUBLESHOOTING CHART ................................................................................................................... 8

The specifications of the pump - features and maintenance- are available in

adocumentation enclosed to the manual.

KREMLIN Page 2 Manual : 573.002.212

Dear Customer,

We thank you very much for purchasing our KREMLIN pump. You are the owner of one of the most

reliable pumping system available on the market.

To make sure your investment will provide full satisfaction, special care has been taken by

KREMLIN during all designing and manufacturing processes.

To obtain the best result, safe and efficient operation of your equipment, we advice you to read and

make yourself familiar with this instruction and service manual. Indeed, the non-compliance with

instructions and precautions stated in this manual could reduce the equipment working life, result in

operating trouble and create unsafe conditions.

1. EC DECLARATION OF CONFORMITY

The manufacturer : KREMLIN REXSON with assets of 6 720 000 euros

Head office : 150, avenue de Stalingrad – 93 245 - STAINS CEDEX - FRANCE

Tel. 33 (0)1 49 40 25 25 - Fax : 33 (0)1 48 26 07 16

Herewith declares that : Pneumatic pump, is in conformity with the provisions of :

EC - Machinery Directive (Directive 98/37/EC) as amended and with national implementing legislation

Ex - ATEX Directive (Directive 94/9/EC) : II 2 G (group II, class 2, gas).

Established in Stains, on March 1st 2003,

Daniel TRAGUS

President

2. GENERAL SAFETY INSTRUCTIONS

WARNING : Any misuse of the equipment or accessories can damage them, result in serious

body injury, fire or explosion hazard and reduce the equipment working life. Read,

understand and comply with the safety instructions hereafter.

The personnel involved in operating and servicing this equipment must be aware of all safety

requirements stated in this manual. The workshop supervisor must be certain that the personnel has

perfectly understood the safety instructions and complies with them.

Read all instruction manuals as well as the tags of the equipments before operating the equipment.

Refer to local safety instructions and comply with them.

INSTALLATION REQUIREMENTS

ÂGround the equipments.

Use the equipment only in a well-ventilated area to prevent from serious body injuries, fire and

explosion hazards. Do not smoke in the spray area.

Never stock paints and solvents in the spray area. Always close the pots and the tins.

Always keep the spray area clean and free from debris (solvent, rags,…).

Read paint and solvent manufacturer's technical instructions.

Spraying of some materials may result in hazardous working conditions. To protect the operator,

respirator mask, hand cream and glasses are required. (Refer to chapter "Safety equipment" of

KREMLIN selection guide).

KREMLIN Page 3 Manual : 573.002.212

EQUIPMENT REQUIREMENTS

The operating pressure of these equipments are particularly high. Consequently, some precautions

must be taken in order to prevent from accidents and from unsafe working conditions.

ÂNever exceed the components maximum working pressure of the equipment.

HOSES

Do not use hoses with a maximum burst-proof pressure less than four times the maximum service

pressure of the pump (see data sheet).

Be certain the hoses are not crimped, leaking and not unrolled.

Be certain hoses are in good conditions and showing no evidence of damage.

ÂUse only air hose with static conductor to connect the pump with the spray gun.

All fittings must be tight and in good condition.

PUMP

ÂGround the equipment (use the connection on the pump).

Do not use any product or solvent incompatible with the pump components.

Use the appropriate solvent for the material being sprayed to increase the equipment working life.

GUN

Never wipe the end of the tip with the fingers.

Always depressurize air and hoses before carrying out any servicing on the gun.

Never point the spray gun at anyone or at any part of the body.

MAINTENANCE REQUIREMENTS

ÂNever modify these equipments.

Check them daily, keep them in a good condition and replace the worn parts only with KREMLIN

parts.

Before cleaning or removing components of the equipment, it is compulsory :

1 - to stop the pump by shutting off the compressed air supply,

2 - to open the pump drain valve,

3 - to point the gun into an appropriate waste receptacle and press the gun trigger

to depressurize the system.

3. OPERATING PRINCIPLE

The pump (A) consists of :

•an alternating air motor (B),

•an hydraulic section (C) mechanically coupled to the air motor (B).

The air motor is supplied with compressed air by means of the regulator (D) (Red knob). The pressure is

read on the gauge (E).

During its alternating movement, the air motor drives the piston of the hydraulic section (C). The fluid is

drawn in (L) and forced under pressure in (N). Due to its design, the pressure is always the one read on

the gauge x pump ratio.

The spray air pressure of the gun is adjusted by means of the regulator (grey knob) (F).

⇒To adjust the fluid flow rate, turn the red knob (D) - (Gauge E).

⇒To adjust the spray air, turn the grey knob (F) - (Gauge G).

The pumps are standard ones (with piston) or Flowmax ® ones (with bellows).

KREMLIN Page 4 Manual : 573.002.212

4. INSTALLATION

The pumps are designed to be installed in a spray booth.

DESCRIPTION OF THE LABEL MARKING

Marking in accordance with

the ATEX Directive

KREMLIN REXSON

STAINS FRANCE Name and address of the manufacturer

TYPE xx Pump model

II 2 G II : group II 2: class 2

Surface equipment meant to an area where explosive atmospheres due to

gas, vapours, mists or air mixtures with dusts will probably appear.

G: gas

P prod : xx bar / xx psi Maximum fluid pressure at the pump outlet.

P air : 6 bar / 87 psi Air supply maximum pressure of the pump motor.

Serie / Serial Number given by KREMLIN REXSON

INSTALLATION INSTRUCTIONS

A -

B -

1 -

2 -

Explosive area

Area 1 (Z1)

or area 2 (Z2) :

spray booth

Non-explosive

area

Pump

Spray gun

KREMLIN Page 5 Manual : 573.002.212

5. START UP

5-1 FILLING

STANDARD PUMP FLOWMAX PUMP

Captions :

Standard or FLOWMAX ® pump (B + C)

Air motor

Fluid section

Air regulator "MOTOR AIR"

Gauge

Air regulator "GUN AIR" (depending on version)

Gauge (depending on version)

Air inlet valve

Ground

Discharge valve

Protection spring

(only fo standard pump)

Suction rod (depending on version)

Accumulator filter (depending on version)

Drain valve (depending on version)

Drain rod (depending on version)

HP Fluid hose

Spray gun

"T" lubricant (1/4 l / 0.07 US gal)

(only for standard pump)

Wetting-cup

(only for standard pump)

Air hose (static conductor)

(For specific installation, please contact your KREMLIN REXSON representative).

Nota : If the pump is equipped with an accumulator filter (M), the filter is supplied with a stainless steel

screen n° 6 (filtration size : 168 microns or 85 mesh). The screen is recommended for the use of an

AIRMIX gun fitted with a nozzle model n° 6. If the fluid spraying is carried out by means of an other

nozzle, choose an other screen (refer to the filter instruction manual). Adjust the screen to the application.

Start up procedure :

1 - Ground the pump.

2 - If the pump is a standard one, fill up the wetting-cup (S) with "T" lubricant (R) or with an

appropriate solvent.

3 - Unscrew the air regulators (D and F).

4 - Interconnect the air equipment with the air pressure network (clean air - Pressure < 6 bar / 87

psi). Install a water drop, model 3/4" (or model 3/8" if the pump is equipped with an air motor,

model 500/4), if it is necessary.

5 - Connect all the hoses, air hose and fluid hose (P), as well as the spray gun (Q).

Nota : Comply with the diameters of hoses recommended in the specifications of the pump.

KREMLIN Page 6 Manual : 573.002.212

6 - Remove the nozzle from the spray gun.

FLUSHING WITH SOLVENT

7 - Immerse suction rod (L) and the drain rod (O) into the material container.

8 - Open the air shut off valve (N).

9 - Open the valve (H) of the pump air equipment to supply the air motor.

Nota : If the pump air motor is a 5000 version, it needs pilot air to operate. The pump air

equipment supplies pilot air to the air motor. The air supply pressure is adjusted previously in the

factory to 4 bars / 58 psi maximum.

10 - Increase progressively the air regulator (D) so that the pump runs slowly (Pressure between 0,5

to 1 bar / 7.25 to 14.503 psi).

11 - Observe the drain (O); air bubbles come out from it. When bubbles no longer come out from it,

shut off the drain valve (N).

PRIMING WITH MATERIAL

12 - Remove the suction rod (L) and the drain rod (O) from the material container and immerse them

in a solvent filled container.

13 - Open the drain valve (N), wait until the material flows out regularly, then shut off the drain valve

(N).

14 - Point the spray gun towards the material container and trigger the spray gun until the material

flows out regularly.

WORK

15 - Reinstall the ring and the aircap on the spray gun.

16 - Adjust air regulator (D) to obtain the appropriate material pressure and flow rate.

17 - Gradually open the air regulator (F) to adjust the spraying air to obtain the required spray

pattern.

Nota : Some of these pumps are not equipped in the standard version with the air regulator (F).

A spraying air kit can be mounted on the pump air equipment in order to supply compressed air to the

spray gun if it is necessary.

5-2 PUMP SUPPLIED IN FILLING (CIRCULATING)

Interconnect the pump fluid inlet with the circulating supply hose and start up the pump as it is specified

previously.

If the pump is a FLOWMAX ® one :

WARNING:

→Fluid section filling pressure : 2 bar / 29 psi maximum

→WARNING : Do not create overpressure

→NEVER use the pump when an isolating gate on the supply circuit (upstream from the

FLOWMAX ® fluid section) is shut : it would damage the bellows.

→Do not install a material regulator on the supply circuit or any arrangement that could

perform as a non-return valve.

KREMLIN Page 7 Manual : 573.002.212

6. SHUTDOWN AT THE END OF THE WORK

SHORT DURATION SHUTDOWN

1 - Decrease the material pressure of air regulator (D) until reading 0 bar / 0 psi on the gauge (E).

2 - Trigger the spray gun to depressurize the system.

3 - Unscrew the spray gun air regulator (F) or disconnect the spray gun air inlet.

4 - Remove the aircap from the spray gun, (aicap and nozzle for Airmix ® spray gun) and soak it into

solvent.

LONG DURATION SHUTDOWN

1 - Decrease the air regulator (D) until reading 1 bar / 14.503 psi on gauge (E).

2 - Unscrew the spray gun air regulator (F) or disconnect the spray gun air inlet.

3 - Remove the spray gun aircap, (aircap and nozzle for AIRMIX ® spray gun) and soak it into

solvent.

4 - Open the drain valve. The pump must operate slowly. If the speed is too high, decrease the air

regulator (D) pressure.

5 - Remove the suction rod and the drain rod from the material container and immerse them in a

solvent-filled container. Take all the appropriate precautions in the presence of flammable

solvents.

6 - When the solvent flows out regularly, close the drain valve.

7 - Point the spray gun towards the material container and press the gun trigger. When the solvent

flows out, point the spray gun towards the recovery container.

8 - When the solvent flows out, release the spray gun trigger.

Nota : If the pump is a standard one, release the spray gun trigger when the pump is in a

low position. To prevent from damaging the seals when starting the pump, the

piston must be immersed into solvent.

9 - Fully unscrew the air regulator (D) and shut off the main compressed air valve (valve H).

10 - Press the spray gun trigger to decompress the hoses. Therefore, the pump and the hose remain

filled with solvent at the atmospheric pressure.

7. MAINTENANCE

PUMP

Make sure that the pump is clean and in good condition to increase equipment working life.

If the pump is a standard one :

- Regularly clean the wetting-cup with "T" lubricant (this "T" lubricant will normally be coloured by

the paint).

- Regularly clean the wetting-cup with solvent after having drained the lubricant (unscrew the plug

on the upper flange).

Make sure that the suction strainer is clean and in good condition. Regularly clean it and change it if

necessary.

Flush the pump as often as necessary, specially when spraying pigment-filled material.

Whatever the case, when stopping the pump, always leave it filled with material.

For a short duration shutdown, if the flushing has not been carried out, leave the pump

filled with material.

For a short duration shutdown, after flushing the pump, leave it filled with solvent.

SPRAY GUN

Comply with the usual instructions of spray gun servicing (refer to spary gun instruction manual).

KREMLIN Page 8 Manual : 573.002.212

FILTER

If the pump is mounted with a filter at the fluid outlet, comply with the usual instructions of filter

servicing (refer to filter instruction manual).

8. SAFETY DEVICE

A relief-valve (setting : 6,5 bar / 94 psi) is fitted on the pump air motor - thus protecting this one from an

overpressure which could damage it.

On the standard pumps, a protection spring, mounted between the air motor and the fluid section, protects

the operator during the pump piston motion.

9. TROUBLESHOOTING CHART

CAUSE SOLUTION

The pump does not start. Check the pump air supply.

Priming trouble : Be sure that the spray gun is fully opened and air

evacuated through this one.

ÎAir is always coming out from the spray

gun.

Air intake at the fitting or at the suction rod.

ÎWhen priming, air (or material) does not

come out from the spray gun.

Check the pump valves. If a valve is sticked by dry

paint, it can be unsticked without disassemblying it.

Blow air pressure directly by suction fitting.

The pump does not stop at once when

shutting off the spray gun :

ÎThe pump stops only on down stroke. Check exhaust valve or valve seal.

ÎThe pump stops only on up stroke. Check suction valve or upper cartridge.

The pump does not reverse. Check spring of the air motor reversing block.

Lubricate reversing-block with HP 150 oil.

Check is there is pilot air (depending on air motor

model).

On standard pump, the lubricant into the

cup is fastly coloured.

Check the upper packing (tighten the cup or

change seals if it is necessary).

On FLOWMAX ® pump, leakage of fluid at

the bottom of the air motor. Check bellow.

Spraying trouble. Refer to spray gun instruction manual.

Decrease of material flow. Refer to filter instruction manual.

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