How to operate the JUN-AIR Your Jun-Air compressor is very easy to operate. Observe the following, simple instructions, and you will get many years service from your compressor. Protect compressor against rain, moisture, frost and dust. '. Always keep the compressor in a vertical position during use and transportation. Ensure that adequate ventilation is available during operation. Ready for use Replace the cap at the air intake tube with the intake filter. Filling of oil If required add more oil, while compressor is stopped. Use only genuine Jun-Air SJ-27 oil, which is obtainable from your supplier. Oil level Check the oil level once a week. The oil level must be visible in the glass. Removing moisture Blow down receiver at least once a week. Close cock tightly afterwards. WARNING: Unless directions are followed, physical injury or property damage may result. Use only recommended air-handling parts acceptable for pressure not less than 8 bar (120 psi). Do not direct air stream at body. Protect compressor against rain and moisture. Store fndoors. When a flammable liquid is sprayed, there may be danger of fire or explosion, especially in closed rooms. When using the compressor, keep it out of reach of children and never leave it unattended. The Jun-Air synthetic oil may damage certain gasket materials. The use of Teflon (PTFE), Viton etc. is recommended. Limitations in continuous operation © Curve no. 1 indicates length of continuous running at varying pressures, until the Overload Protector switches off the motor (at approx. 115° C oil temperature - measured from 20° C start point). (Example: 5,5 bar = 128 minutes). (2) Curve no. 2 indicates the recommendable proportion of operation and standstill. (Example: At 5,5 bar max. operation is 70 % of the time (30 % min. standstill), corresponding to 42 minutes operation/18 minutes standstill per hour). The curves represent avarage values at 220V 50Hz operation at 20° C ambient temperature. At lower voltage and/or higher ambient temperature running time must be reduced. mir 209 ........ ....... - ; • • • ....Lj....j : • - ! • -4- — i — 180 ...... V. ....'...A . . _ ! • 160 -•i\v.:--| ....:.- 140 ......^..:... ....... —-j h r..... . .... .I....:.. ....;.... :._.. ..... ...... ------f j--:" : ! " • " { - — {•- --- • | - • ; v -;- l..:\ _4_ 4 .,_ _:.... X-N x [ •••(?•) 5^ 80 . . . + -4+ —•- u l —...... — .__ ...... • • : • - -r: 1 \ . . . . . . . - "1- •4....;.. .4. --fr •••+- •4- _ ~i- ....... 120 —f— •4- - . . —i—|—i— . • • - - • • | - : > • • --,-;-{--60 ! „ . : . . . . - ...... . . . . . . i :- 1" • - —•+-"-+- i -:- - | ! • 1 1 40 • • - • - ! 20 • n- ! ! • • • ; 1 j j - • • 8 bar 20 60 80 100 120psi - Technical details Model 6 Model 12 220V-50 Hz H5V-60HZ £ !' c I' 220V - 50 Hz • 115V -60Hz - 2.1 2,01.91.8U1,61.51.41.31,2 1,1 0 20 40 60 80 100 0 120 psi 20 40 60 80 100 120 psi The compressor works at nominal voltage +10 %, 50-60 Hz. 6-J Junior 6-M Mini 6-S Standard 6-X Maxi Mod. 12-20 Mod. 12-50 Motor KW 0,34 0,34 0,34 0,34 0,68 0,68 Motor HP 0,5 0,5 0,5 0,5 1 1 Displacement*) Lit./min. 50 50 50 50 100 100 Max. pressure Bar/p.s.i 8/120 8/120 8/120 8/120 8/120 8/120 Air receiver Liter 4 10 15 25 20 50 Volt +10%**) Volt 220 220 220 220 220 220 Power consump.*) Watt/Amp. 340/2.65 340/2.65 340/2.65 340/2.65 680/5.3 680/5.3 Weight Kg 20 22,5 27,5 30,5 49 55 Noise level dB(A)/1 m 45 45 45 45 45 45 *) See graph. **) Available also with 115V 60 c motor: See graph. Preventive compressor maintenance Weekly Check oil level. Correct level is between maximum- and minimum indications during standstill. Use only genuine SJ-27 synthetic oil. Do not overfill • Blow down air-receiver (at a pressure of max. 30 psi) • Monthly Check compressor and air line for leaks • Inspect, clean or replace intake filter • Give compressor overall visual check and wipe with soft rag. If necessary use paraffin on rag to remove sticky adhesions. Dust and dirt prevents cooling • Annually Change oil • Operate Safety-valve by gently pulling protruding rod • Adjustment of Pressure Switch A A A: Min. pressure adjustment (cut-in) B: Differential adjustment (cut-out) The cut-in pressure is set by even adjustment of the two screws A. Turn clockwise to increase the switch-on pressure and counterwise to reduce it. The cut-out pressure is set by means of the differential screw B. (Cut-in pressure + differential = cut-out pressure). Turn clockwise to increase the differential. The switch is normally factory set for operation at 6,5-8 bar (approx. 90-120 psi). Fault finding and repair IMPORTANT! 1. Switch off current before removing any parts from compressor. 2. Empty air receiver of air before dismantling any part of compressor unit's pressure system. 1. Compressor does not start (no sound): a) No power from mains. Check fuses and plug. b) Breakage or loose joints in electrical connections. Check with Tester for continuity as per wiring diagram. c) Pressure in air-receiver too high for activation of pressure switch. Empty receiver. The pressure switch makes circuit only when pressure has dropped to preset start pressure. 2. Compressor does not start, makes a buzzing sound following by clicking noise: a) Oil level incorrect. Motor cannot start if overfilled. b) Leaky non-return-valve. Take off the flexible Pressure pipe and clean to see, if air leaks out from the valve. If so, clean or replace. 3. Compressor works, but pressure does not increase in tank (or increases too slowly): a) The Transportation cap has not been removed at the air intake tube and replaced with the air intake filter. b) Air filter clogged. Clean or replace. On rare occasions filter pad may be sucked into the motor intake tube, if the pad has become oil-wetted. c) Leaks in fittings, hoses or pneumatic equipment. Check with soapy water or by letting unit stay overnight with disconnected mains. d) Failure in non-return-valve which is creating a flow restriction. Pumping times 0-8 bar (0-120 psi) Model 6-J Model 6-M Model 6-S Model 6-X Model 12-20 Model 12-50 Junior Mini Standard Maxi 2x10 litre 50 litre 220V, 50Hz 115V, 60Hz 45 seconds 110 195 325 110 325 40 seconds 95 165 275 95 275 Plus/minus 10 %. Average values at 20° C motor temperature. 4. Loud noise from compressor: a) Most likely broken Suspension spring(s). Replace spring and ensure that motor position is horizontal. b) Dirt or failure in non-return-valve. Clean or replace. c) Internal pressure pipe (no. 45470) touches rib cover or cylinder block. Bend away. 5. Compressor gets very hot and/or uses much oil: a) Oil level incorrect. The level must appear in the oil level glass. b) Wrong oil has been filled in'the compressor. Use only SJ-27 synthetic lubricant, which has the correct viscosity. c) Air leaks. See point 3c. d. Clogged intake filter. See point 3b. e) Too high ambient temperature. Do not enclose unit in a cupboard unless adequately ventilated. The compressor should be placed in coolest possible place. f) Over-running. Ensure compressor is correct model for work load. 6. Compressor starts when no air is being tapped: Leaks. See point 3c. 7. Compressor starts and stops more frequently than usual: a) Large amount of condensate in air-receiver. b) Leaks. See point 3c. 8. Compressor does not switch on against pressure or does not switch off at max. pressure: Defective pressure switch. Replace. TABLE OF CONTENTS Page Spare parts drawings 2 37-40 INHALTSVERZEICHNIS Seite Ersatzteil-Zeichnungen 9 37-40 TABLE DES MATIERES Page Croquis pieces detachees 16 37-40 TABLA DE MATERIAS Pagina Dibujos piezas de recambio 23 37-40 INDHOLDSFORTEGNELSE Side Reservedels-tegninger 30 37-40 List of spare parts 30100 31100 32100 33100 34100 36100 40100 40200 40300 40400 40630 40700 41100 41200 41300 43100 43110 43800 43810 43820 43830 44100 44300 45200 45210 45225 45230 45240 45250 45265 45266 45270 45280 45290 45300 45310 45320 45330 45340 45350 45360 45370 45380 45390 45400 45410 45430 45440 45450 45460 45470 45480 45490 45500 45510 45520 45550 45560 45610 45710 47500 47502 50300 50350 50750 51100 51300 51300 52300 53200 4 Itr. Air-receiver 9,5 Itr. Air-receiver 15 Itr. Air-receiver 2x10 Itr. Air-receiver 24,5 Itr. Air-receiver 50 Itr. Air-receiver Filter 5 micron Pressure regulator Regulator-filter Lubricator Submicrofilter 0,01 micron Active coal-filter Quick-coupler 1/4" 1/4" nipple Hose tail nipple Blow gun Blow gun Ball inflator Bicycle inflator Car tyre inflator Hose clamp 8-12 mm PVC air-hose 1/4" Recoil air-hose Overload protector 220V Overload protector 115V Overload spring Starting relay 220V Starting relay 115V Starting relay 100V Connecting board Cover Fastening spring Bolt Top bearing Crankshaft Connecting rod Bolt Piston pin Plain washer Spring washer Piston Pin Cylinder block Rotor Stator 220V Stator 115V Bolt Oil suction tube Cover Gasket Pressure pipe Gasket Bolt Copper washer Suspension spring Valve plate Cylinder head Bolt Casing, bottom part Rib cover Control lamp 220V Control lamp 115V Pressure switch Pressure switch with unload Pressure switch Pressure gauge 050:0-16 Pressure gauge 040:0-16 Start capacitor 220V Start capacitor 115V Frame 6-J 53500 54100 54120 54140 54145 54160 54180 54190 54195 54200 54210 54240 54250 54260 54270 54290 54291 54295 59400 59500 59600 59900 62330 62340 62350 62420 62440 62460 62500 62520 62530 62620 62710 63110 63120 63200 63300 63420 63500 63510 64110 64130 64170 64200 64260 64330 64390 69500 69600 69610 69612 69730 69750 70230 70240 70241 70250 70705 70710 70714 70750 70755 71260 71560 71640 71642 71660 71667 71900 75250 75730 75750 Hand lever Oil level glass Intake filter • Oil inlet screw Non return valve Safety valve Drain cock J, 12-20 Drain cock M Drain cock S Drain cock X Drain cock 12-50 Outlet cock Connecting piece Safety valve Connecting piece 5-way adaptor 4-way adaptor 2-way adaptor Plastic insulation Plastic slide Cable relief Rubber base Gasket Gasket Gasket O-Ring O-Ring O-Ring Socket Socket Rubber base Tube 190 mm Rubber grommet Bolt Bolt Nut Screw Unbraco bolt Washer Clamp Flex, pipe 10,5 cm Flex, pipe 13 cm Flex, pipe 17 cm Flex, pipe 20 cm Flex, pipe 26 cm Flex, pipe 33 cm Flex, pipe 39 cm Wheel Seeger ring Distance tube 23,3 mm Distance tube 27 mm Unloader valve Silencer Double nippeM/4" Double nipple 1/4" 26 mm Double nipple 1/4" 43 mm Double nippel 1/4" x 1/8" Connecting piece T-piece 1/8" T-piece 1/4" Elbow Elbow T-piece 1/4" Extension piece Cross connector Cross connector Plug Plug Elbow 1/8" Hose tail Nut Coupling nut 1/4"