Jun-Air 6-4 User manual

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Jun-Air Compressor
Instruction Manual

OPERATING MANUAL
BETRIEBSANWEISUNG
MODE D’EMPLOI
MODO DE EMPLEO
GEBRUIKAANWIJZING
BETJENINGSFORSKRIFT
Compressor
Model 6-4 / 6-10 / 6-15 / 6-25 &
12-25 / 12-50

Table of contents
3
TABLE OF CONTENTS
OPERATING MANUAL ........................................................................................ 4
WARNING ........................................................................................................................................ 4
GUARANTEE ................................................................................................................................... 4
HOW TO OPERATE THE JUN-AIR COMPRESSOR ................................................................... 5
TECHNICAL DETAILS ................................................................................................................... 6
PREVENTIVE COMPRESSOR MAINTENANCE ........................................................................ 7
FAULT FINDING AND REPAIR ..................................................................................................... 9
SPARE PARTS ................................................................................................................................10
BETRIEBSANWEISUNG ................................................................................... 11
ACHTUNG ...................................................................................................................................... 11
GARANTIE ..................................................................................................................................... 11
SO WIRD DER JUN-AIR KOMPRESSOR BEDIENT ................................................................ 12
TECHNISCHE DATEN .................................................................................................................. 13
VORBEUGENDE KOMPRESSORWARTUNG ........................................................................... 14
FEHLERSUCHE UND REPARATUR ........................................................................................... 16
ERSATZTEILE................................................................................................................................ 17
MODE D’EMPLOI............................................................................................... 18
AVERTISSEMENT......................................................................................................................... 18
GARANTIE ..................................................................................................................................... 18
COMMENT UTILISER LE COMPRESSEUR JUN-AIR............................................................. 19
CARACTERISTIQUES TECHNIQUES........................................................................................ 20
PRECAUTIONS A PRENDRE POUR UN BON ENTRETIEN .................................................. 21
RECHERCHE DE PANNES ET REPARATIONS ........................................................................ 23
PIECES DETACHEES.................................................................................................................... 24
MODO DE EMPLEO .......................................................................................... 25
ADVERTENCIAS PRELIMINARES ............................................................................................ 25
GARANTIA..................................................................................................................................... 25
MODO DE EMPLEO Y MANTENIMIENTO DEL JUN-AIR..................................................... 26
DETALLES TÉCNICOS ................................................................................................................. 27
MANTENIMIENTO PREVENTIVO DEL COMPRESOR .......................................................... 28
DIAGNOSTICO DE FALLAS Y REPARACIONES ..................................................................... 30
PIEZAS DE RECAMBIO ............................................................................................................... 31
GEBRUIKSAANWIJZING .................................................................................. 32
LET OP ............................................................................................................................................ 32
GARANTIE ..................................................................................................................................... 32
BEDIENING VAN DE JUN-AIR COMPRESSOR ....................................................................... 33
TECHNISCHE GEGEVENS .......................................................................................................... 34
PREVENTIEF ONDERHOUD VAN DE COMPRESSOR ........................................................... 35
OPSPOREN EN VERHELPEN VAN STORINGEN..................................................................... 37
ONDERDELENLIJST .................................................................................................................... 38
BETJENINGSFORSKRIFT ................................................................................ 39
ADVARSEL..................................................................................................................................... 39
GARANTI........................................................................................................................................ 39
SÅLEDES BETJENES JUN-AIR KOMPRESSOREN ................................................................. 40
TEKNISKE DATA........................................................................................................................... 41
FOREBYGGENDE KOMPRESSORVEDLIGEHOLDELSE ....................................................... 42
FEJLFINDING OG REPARATION ................................................................................................ 44
RESERVEDELSLISTE ................................................................................................................... 45
DRAWINGS ........................................................................................................ 46
MOTOR SPARE PARTS MODEL 6 .............................................................................................. 46
SPARE PARTS MODEL 6-4/6-10/6-15/6-25................................................................................ 47
SPARE PARTS MODEL 12-25/12-50 ........................................................................................... 48
ACCESSORIES .............................................................................................................................. 49

Operating manual
4
OPERATING MANUAL
WARNING
lUnless directions are followed and original spare parts used, physical injury or
property damage may result.
lProtect compressor against rain, moisture, frost, and dust.
lCompressor is only suitable for installations with the nominal voltage stated on
the motor plate.
lDo not in any way block or prevent the normal functioning of the safety valve
onthe receiver.
lOnly connect pneumatic equipment suitable for the max. pressure indicated.
lDo not operate compressor at ambient temperatures exceeding 35°C/95°F or
falling below 0°C/32°F.
lDo not touch compressor motor during operation as there is a risk of burn due
to high temperatures.
lDo not direct air flow at head or body.
lWhen a flammable liquid is sprayed, there may be danger of fire or explosion,
especially in closed rooms.
lAlways keep the compressor out of reach of children.
GUARANTEE
Provided that the operational instructions have been carried out, your JUN-AIR
compressor is guaranteed against faulty material or workmanship for 2 years.
The air receiver is guaranteed for 5 years.
The guarantee does not cover damage caused by violence, misuse, incorrect
repairs or use of wrong oil and unoriginal spare parts.
Costs of transportation of parts/equipment are not covered by the guarantee.
JUN-AIR’s Conditions for Sale and Delivery will generally apply.
JUN-AIR International A/S reserves the right to change technical specifications/
constructions.

Operating manual
5
(fig. 4)
(fig. 3)
(fig. 2)
(fig. 1)
HOWTO OPERATETHE JUN-AIR COMPRESSOR
Your JUN-AIR compressor is very easy to operate. Observe the following simple
instructions and you will get many years’ service from your compressor.
1. Visually inspect unit for shipping damage, contact your supplier immediately if
you think the unit may have been damaged.
2. Always keep the compressor in a vertical position during use and
transportation.
3. Place the compressor in a dustfree, dry and cool, yet frostfree, room. Do not
install in a closed cupboard, unless adequate openings for ventilation are
available (fig. 1). Ensure that the compressor stands firmly on the floor.
4. Replace the cap on the air intake tube with the intake filter (fig. 2).
5. Connect pneumatic equipment.
Important!
The compressor oil may be aggressive towards certain gasket
materials used in pneumatic equipment.We recommendTeflon,
Viton, etc.. Do not use polycarbonate filter bowls. Contact your
local JUN-AIR distributor if you need further information.
6. Plug the compressor into an outlet switch of nominal voltage and ensure that
fusing is adequate (see Technical Details).
7. Start the compressor using the 0/1 switch on the pressure switch (fig. 3). The
compressor will automatically switch off at the preset pressure. If the motor
does not start it may be due to pressure in the receiver, and the motor will then
start automatically when the pressure reduces to approx. 6 bar/87 psi.
8. Always keep the compressor in a vertical position as oil may run out of the
intake filter. During transportation, mount the cap on the inlet. Mechanical
noise from the compressor in connection with handling does not have any
functional importance.
Warning!
Never mount the transportation cap on oil-lubricated compressors
while there is still pressure in the compressor & pressure vessel,
as this may cause a pressure build up in the motor housing.
9. Adjustment of pressure (fig. 4):
A: Max. pressure adjustment (cut-out)
B: Differential adjustment (cut-in)
The cut-in pressure (normally 6 bar) is set by adjustment of differential screw
B. Turn clockwise to reduce cut-in pressure.
The cut-out pressure is set by even adjustment of the two screws A. (Cut-in
pressure + differential = cut-out pressure). Turn clockwise to increase cut-out
pressure.
The switch is normally factory set for operation at 6-8 bar (approx. 90-120
psi).

Operating manual
6
TECHNICAL DETAILS
The max. operation of the compressor is 50% of the operation time, and
the max. operation time is 15 min. at 8 bar/120 psi in each cycle.
Consequently, 15 min. standstill is required before the next start.
0991302a
Model 6
0991303a
Model 12
Model
Voltage Volt±10%/Hz 120/60 120/60 120/60
HP 0 54 0 54 0 54
kW 0 40 0 40 0 40
l/min 60 60 60
CFM 2 12 2 12 2 12
bar
psi
Power consumption
at 8 bar liter
US gall
kg
lbs
l 420 - 16 4/8 350 - 13 6/8 380 - 15
w 300 - 11 6/8 350 - 13 6/8 380 - 15
h310 - 12 2/8 450 - 17 6/8 480 - 18 7/8
Noise level dB(A)/1m
Pumping time
0-8 bar (0-120 psi)
2)
Model
Voltage Volt±10%/Hz 120/60 120/60 120/60
HP 0 54 1 08 1 08
kW 0 40 0 80 0 80
l/min 60 120 120
CFM 2 12 4 24 4 24
bar
psi
Power consumption
at 8 bar liter
US gall
kg
lbs
l 380 - 15 400 - 15 6/8 760 - 29 7/8
w 380 - 15 410 - 16 1/8 450 - 17 6/8
h550 - 21 5/8 590 - 23 2/8 620 - 24 3/8
Noise level dB(A)/1m
Pumping time
0-8 bar (0-120 psi) 2)
6 2 2 9 6 2
0 46
45
165
230/50
0 46
0 34
50
57
1 77
45 45
50
1 77 50 1 77
46 25 55
2 9
6-15
8
120
Weight
Tank size
88
120 120
0 46
Dimensions mm - inch
amp
Motor
Displacement
Max pressure 1)
2) Plus/minus 10% Average at 20°C/68°F motor start temperature Technical modifications reserved
40 9550 195115
sec.
1) Higher pressure available upon request
6-4 6-10
4
2 9
10
230/50 230/50
0 340 34 0 46
6-25 12-25 12-50
6 2
1 1 2 6
21
15
4 0
26
230/50 230/50 230/50
Motor 0 92 0 92
0 68 0 680 34
Displacement 100 100
3 54 3 54
50
1 77
Max pressure 1) 888
120 120 120
amp 2 9 6 2 5 8 12 4 5 8 12 4
Tank size 25 25 50
6 6 6 6 13 2
Weight 29 45 57
64 99 126
Dimensions mm - inch
45 48 48
2) Plus/minus 10% Average at 20°C/68°F motor start temperature Technical modifications reserved
130 340 285
1) Higher pressure available upon request
sec. 325 270 155

Operating manual
7
PREVENTIVE COMPRESSOR MAINTENANCE
Weekly Monthly Annually
Check oil level. During standstill the
correct level is between the maximum
and the minimum indications.
Use only genuine SJ-27 synthetic oil.
Do not overfill (fig. 1).
●
Drain condensate from air receiver (at a
pressure of max. 2 bar/30 psi) (fig. 2). If
fitted with auto drain, this will take place
automatically, however, drain bottle has
to be emptied.
●
If compressor is fitted with outlet filter,
check and empty for water by pressing
the black button in the bottom. If fitted
with auto drain, this will take place
automatically.
●
Check compressor, air tubes and
equipment for leaks, and check the
pumping time. ●
Inspect and replace intake filter, if
necessary. ●
Clean the compressor with a soft, damp
cloth. Dust and dirt prevent cooling. ●
Check the O-ring in the non-return valve
and replace if necessary (fig. 3).
Note! Empty receiver of air before
dismounting.
●
Check filter and filter elements for
optimum efficiency. ●
Test the safety valve by gently pulling the
ring with pressure in the receiver (fig. 4). ●
(fig. 1)
(fig. 2)
(fig. 4)
(fig. 3)

Operating manual
8
Oil change
In connection with repair of model 6 motors, e.g. change of valve plate or other
internal motor parts or in case the compressor is installed in a very dusty
environment, oil change may be necessary. Proceed as follows:
1. Remove the ribbed cover by loosening the 4 screws (fig. 1).
2. Tilt the motor towards side with outlet and at the same time hold the internal
motor parts in place with hand. Pour all oil out of housing (fig. 1). In case of
dirt particles at the bottom of the motor housing, clean with a rag.
Note!
Waste oil is to be handled according to the environmental rules in
force in the country.
3. Tilt the motor back and fill with SJ-27 oil (approx. 0.75l) (fig. 1).
4. Clean the edge of casing and cover. Check the O-ring of the ribbed cover.
5. Replace the ribbed cover and check during operation that the O-ring is placed
correctly to ensure a 100% tight closing between housing and cover.
Important!
Always use SJ-27 oil as other types of oil may cause serious
mechanical damage to the compressor. Consequently, the
warranty only applies if SJ-27 oil is used.
Check the pumping time
The pumping time indicates the condition of the compressor provided that there
are no leaks in the system where the compressed air may leak. Test the compressor
as follows:
1. Empty the air receiver of compressed air (the pressure gauge shows 0 bar).
2. Close the outlet on the air receiver and check that the drain cock is closed.
3. Start the compressor and note how long it takes until it switches off.
Make sure that the pressure in the air receiver is 8 bar/120 psi as deviations
may indicate the wrong results (see technical details).
Important!
Always test the compressor when cold as the time indicated refers
to the pumping time of a cold compressor.The pumping time of a
warm compressor is much longer and consequently, the result
would be misleading.
(fig. 1)

Operating manual
9
FAULT FINDING AND REPAIR
Important!
Switch off and isolate from electrical supply before removing any
parts from the compressor.
Empty air receiver of air before dismantling any parts of
compressor unit’s pressure system.
1. Compressor does not start:
a) No power from mains. Check fuses and plug.
b) Breakage or loose joints in electrical connections.
c) The starting relay is defective. Contact your JUN-AIR distributor.
d) The pressure switch is defective and does not switch on the compressor.
e) The thermal protection has switched off the compressor due to overheating.
When cooled the compressor will automatically turn on at a suitable operation
temperature. Go through the points in section 4.
f) Pressure in the air receiver is too high for activation of the pressure switch.
The pressure switch makes circuit only when pressure has dropped to preset
start pressure. Empty the receiver.
g) The compressor has not been unloaded and there is back pressure on the
piston. Dismount and check unloader valve (fig. 1). The back pressure may be
due to a leaking non-return valve causing the compressed air in the receiver to
leak back into the compressor motor. Dismount the non-return valve and clean
or change O-ring (fig. 2).
h) Capacitor defective.
2. Compressor operates, but pressure does not increase in tank (or
increases too slowly):
a) The cap on the intake tube has not been removed and replaced by the intake
filter (fig. 3).
b) Intake filter is clogged. Replace.
c) Leaks in fittings, tubes or pneumatic equipment. Check with soapy water or by
letting unit stay overnight with disconnected mains. Pressure drop is not to
exceed 1 bar.
d) Clogged non-return valve or pressure pipe. Clean or replace the parts
(fig. 2).
e) Air leaks from the unloader valve when the compressor is operating. Check or
replace the unloader valve (fig. 1).
f) Defective valve plate. Contact your JUN-AIR distributor.
3. Loud noise from compressor:
a) Most likely broken suspension spring(s). Replace the spring and ensure that
motor position is horizontal.
b) The internal pressure pipe touches the rib cover or the cylinder block.
Dismount the rib cover and bend the pressure pipe away.
4. Compressor gets very hot and/or uses a lot of oil:
a) Incorrect oil level. The level must appear in the oil level glass (fig. 4).
b) Wrong oil has been filled in the compressor. Use only SJ-27 synthetic lubricant
which has the correct viscosity.
c) Leaks. See point 2c.
d) Clogged intake filter. See point 2b.
e) Too high ambient temperature. Do not install the compressor in a cabinet
unless adequately ventilated (fig. 5).
f) The compressor is overloaded (i.e. it is operating more than 50% of the
operation time). Contact your JUN-AIR distributor.
5. Compressor starts when no air is being used:
a) Leaks. See point 2c.
6. Compressor starts and stops more frequently than usual:
a) Condensate in the air receiver. Empty the receiver by means of the drain cock
(fig. 6).
b) Leaks. See point 2c.
(fig. 1)
(fig. 2)
(fig. 4)
(fig. 3)
(fig. 5)
(fig. 6)

Operating manual
10
(Please refer to the back for drawings) SPARE PARTS
3010000 Tank 4l, no IP 5419000 Drain cock 1/4" 10l
3010500 Tank 4l, 1 IP 5419100 Drain cock 3/8" 10l
3110000 Tank 10l EC, 1 IP 5419500 Drain cock 1/4" 15l
3115000 Tank 10l, no IP 5419600 Drain cock 3/8" 15l
3210000 Tank 15l CE, 1 IP 5420000 Drain cock 1/4" 25l
3214000 Tank 15l, no IP 5420100 Drain cock 3/8" 25l
3410000 Tank 25l CE, 1 IP 5421000 Drain cock 1/4" 40/50 l
3410500 Tank 25l, no IP 5421100 Drain cock 3/8" 40/50l
3610000 Tank 50l CE, 2 IP 5424000 Outlet cock 1/4"
4070500 Act. carbon filter DH AC-0003G 5425000 Distributor f/non-return valve
4071000 Filter 5u man. F07-220-M1MG 5425500 Safety valve TšV 10 bar
4071020 Regulator R07-280-RNMG 5426500 Safety valve TšV 16 bar
4071030 Filter reg 5u man B07-280-M1MG 5427000 Connecting piece
4071055 Filter 0.01u man F39-220-M0MG 5429000 Adaptor 5-way compl.
4071080 Lubricator L07-220-MPMG 5429100 Adaptor 4-way compl.
4110000 Rapid coupler 1/4" 5429500 Adaptor 2-way compl.
4120000 Nipple 1/4" 5470300 Kit repl. valve plate M6
4130000 Hose tail nipple 1/4" 5940000 Plastic insulation
4210000 Trolley f/6-10/15/25 5950000 Plastic slide
4211000 Trolley f/6-4/3-1.5 5960000 Cable relief
4310000 Blow gun black 5990000 Rubber base f/M12
4311000 Blow gun black 6235000 Gasket f/oil filling
4380000 Ball inflator 6241800 O-ring f/1" plug - 32x5 mm
4381000 Bicycle inflator 6244000 O-ring f/rib cover
4382000 Car tyre inflator 6246000 O-ring f/2" plug
4383000 Hose clamp 8-12 mm 6250000 Socket 25 mm black
4410000 PVC air hose 1/4" 6252000 Socket f/handle f/3-1.5/6-4
4430000 Recoil air hose 1/4" 7.5 m 6253000 Base f/handle ø25x25 M8x8
4510000 Motor parts internal 230V M6 6271000 Rubber grommet f/motor M6
4511000 Motor parts internal 120V M6 6290200 Grip for handle
4520000 Overload protector M6 230V 6290300 Grip for handle
4521000 Overload protector M6 120V 6311000 Bolt M8x25 FZB
4522500 Overload spring 6312000 Bolt M8x35 FZB
4523000 Starting relay 230V M6 6320000 Nut M8 FZB
4524000 Starting relay 120V M6 6320200 Counter nut M8 flat FZB
4525000 Starting relay 100V M6 6330000 Screw CHJ M4x5 FZB
4526500 Connecting board compl. M3/M6 6341900 Bolt M6x16
4526600 Cover f/connecting board M3/M6 6350000 Washer ø23x11.5x1.5 mm FZB
4527000 Fastening spring M3/M6 6351000 Clamp
4528000 Bolt f/top bearing M6 6372700 Lock nut M8 FZB
4529000 Top bearing M6 6413000 Flex pipe 1/8" 13(15) cm
4545000 Cover M6 6417000 Flex pipe 1/8" 17 (19)cm
4546000 Gasket f/cover M6 6420000 Flex pipe 1/8" 20 (22) cm
4547000 Pressure pipe M6 6433000 Flex pipe 1/8" 33 (35)cm
4549000 Bolt f/pressure pipe M6 6439000 Flex pipe 1/8" 39 (41)cm
4550000 Copper washer M6 6950000 Wheel ø200x50mm
4551000 Suspension spring M6 6960000 Locking ring A20 f/M12
4555000 Cylinder head M6 6961000 Distance tube 23.3 mm
4556000 Bolt f/cylinder head M6 6961200 Distance tube 27 mm
4561000 Casing bottom part M6 6973080 Unloader valve w/16.4mm needle
4571000 Rib cover M6 6975000 Silencer SE-M5
4750000 Control lamp 230V 7023000 Hose tail 1/4"
4750200 Control lamp 120V 7024000 Double nipple 1/4" L = 26 mm
5030000 Pressure switch MDR 2/11 7070500 Conn. pce f/non-ret.-valve M12
5033000 Press. switch MDR21/11 UL unl. 7070600 Conn. pce f/non-ret.-vlv M4000
5035000 Pressure switch MDR2/11 compl. 7071000 T-piece 1/8"
5110000 Gauge ø50 - 0-16bar 1/4" back 7071400 Cross connector Condor
5130000 Gauge ø40 - 0-16 bar 1/8" down 7156000 Extension piece f/cock
5210000 Capacitor start 70uF 7156100 Extension piece f/cock (84cm)
5230000 Capacitor start 160 uF UL 7164200 Cross connector f/3-1.5/6-4
5320000 Handle f/6-4 7164900 Plug 1" f/inspection plug
5330000 Handle f/6-10 7166700 Plug 2" f/inspection plug
5340000 Handle f/6-15 & 6-25 7180000 Elbow 1/4"
5350000 Hand lever f/M12 7190000 Elbow 1/8"
5410000 Oil level glass compl. 7525000 Hose tail f/coupling nut
5412000 Intake filter compl. 7566000 Bushing 1/4" x 1/4"
5414000 Oil inlet screw w/gasket 7567000 Bushing 1/4" x 3/8"
5414500 Non-return valve 7573000 Nut f/rib cover
5416000 Safety valve 10bar/145psi 7575000 Coupling nut 1/4"
5416200 Safety valve 16bar/232psi 8105000 Bracket f/M12-15/25 compl.
5418000 Drain cock 1/4" 4l