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AirMan SAS4SD-5A/6A Service Manual

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Summary of Contents for AirMan SAS4SD-5A/6A

  • Page 2 Preface This service manual explains about the cautions for maintenance jobs and is to serve a guide for the electric system, and troubleshooting for service personnel. Fundamental matters and other things already mentioned in the “Instruction Manual” and the “Parts Catalogue” are omitted to avoid duplication. Therefore, for the operation and handling of this unit, we request you to refer to the instruction manual and caution plates, and further for the structure and components of the unit, please refer to the “Parts Catalogue”...

  • Page 3: Table Of Contents

    Table of Contents 1. Specifications --------------------------------------------------------------------------------------------- 1-1 1.1 Specifications --------------------------------------------------------------------------------------------------------- 1-1 1.2 Motor Specifications ------------------------------------------------------------------------------------------------- 1-3 1.3 Size and Dimensions ---------------------------------------------------------------------------------------------- 1-4 1.4 Internal Components and Part Names ----------------------------------------------------------------------- 1-15 1.5 Operation Panel ----------------------------------------------------------------------------------------------------- 1-16 1.6 Capacity Control ---------------------------------------------------------------------------------------------------- 1-19 1.7 Piping Diagram ------------------------------------------------------------------------------------------------------ 1-20 2.

  • Page 4: Specifications

    1. Specifications 1.1 Specifications 1.1.1 In-door type (SAS) SAS11SD SAS15SD SAS4SD SAS6SD SAS8SD -5A/6A -5A/6A Model -5A/6A -5A/6A -5A/6A <SAS11S <SAS15S -5A/6A> -5A/6A> Type Rotary-twin screw, single stage, oil cooled Free air delivery /min 0.44 0.72 Working pressure 0.83 0.69 Capacity control A.C.C.S.＋purge control＋Auto-start/stop system...
  • Page 5 1. Specifications 1.1.2 In-door type (SAS-V) Model SAS11VD-A SAS15VD-A Type Rotary-twin screw, single stage, oil cooled Free air delivery /min 1.9－1.6 2.7－2.1 Working pressure 0.4－0.83 Capacity control Inverter control＋purge control＋ system Auto-start/stop Lubrication system Forced oil injection by compressed air pressure Automatic belt Driving system Ribbed belt...
  • Page 6 1. Specifications 1.1.3 Out-door type (SMS) SMS15ED-5A/6A Model SMS4ED-5A/6A SMS8ED-5A/6A SMS11ED-5A/6A <SMS15E-5A/6A> Type Rotary-twin screw, single stage, oil cooled Free air delivery /min 0.44 Working pressure 0.83 0.69 Capacity control A.C.C.S.＋purge control＋Auto-start/stop system Lubrication system Forced oil injection by compressed air pressure Automatic belt Driving system Ribbed belt...

  • Page 7: Size And Dimensions

    1. Specifications 1.3 Size and Dimensions 1.3.1 Dryer built-in type (1) SAS4SD-5A/6A...
  • Page 8 1. Specifications (2) SMS4ED-5A/6A...
  • Page 9 1. Specifications (3) SAS6SD-5A/6A...
  • Page 10 1. Specifications (4) SAS8SD-5A/6A...
  • Page 11 1. Specifications (5) SMS8ED-5A/6A...
  • Page 12 1. Specifications (6) SAS11SD-5A/6A...
  • Page 13 1. Specifications (7) SMS11ED-5A/6A 1-10...
  • Page 14 1. Specifications (8) SAS15SD-5A/6A 1-11...
  • Page 15 1. Specifications (9) SMS15ED-5A/6A 1-12...
  • Page 16 1. Specifications 1.3.2 Without dryer type (1) SAS11S-5A/6A 1-13...
  • Page 17 1. Specifications (2) SAS15S-5A/6A 1-14...

  • Page 18: Internal Components And Part Names

    1. Specifications 1.4 Internal Components and Part Names A100228 SAS15SD-5A/6A (Dryer built-in Type) Description Function Air filter For filtering the dust floating in the intake air. Oil cooler For cooling compressor oil circulating in the system. After cooler For cooling compressed air. Starter panel For starting operation of compressor.

  • Page 19: Operation Panel

    1. Specifications 1.5 Operation Panel Data setting switch Trouble code/Resetting switch Set various data. When pressing the switch while lamp Pressing the switch (longer than 3 flickering, trouble code is displayed. seconds) goes to data setting mode. Pressing longer than 2 seconds, the display will be rest.
  • Page 20 1. Specifications ■Trouble code 1. Trouble code lamp goes on whenever it happens. 2. Next, pushing trouble code key switch, following signals are displayed on screen. 3. Trouble display is re-set by pressing trouble code switch longer (2 seconds). Indi- Detection SAS/SMS Item...
  • Page 21 1. Specifications ■Display Indication SAS/SMS Item Code Unit ○ ○ ○ ○ ○ Air service pressure Discharge air temperature ｄ ℃ ○ ○ ○ ○ ○ Separator discharge air ℃ － － － ○ ○ temperature ℃ ○ ○ ○ ○...

  • Page 22: Capacity Control

    1. Specifications 1.6 Capacity Control 1.6.1 A.C.C.S. type A090513-2E Conditions Conditions of capacity control valve Unloader valve Start/Purge operation Open At a little open Full-load Close At fully open Stop Open At fully closed Conditions Function When it starts, capacity control valve opens and compressed air flows into Start unloader valve.

  • Page 23: Piping Diagram

    1. Specifications 1.7 Piping Diagram 1.7.1 SAS4SD-5A/6A･ ･ ･ ･ SMS4ED-5A/6A (A.C.C.S. type) (1) Compressor A100402E Aftercooler Pressure control valve Air filter Pressure sensor By-pass valve Orifice Dryer Orifice Check valve Safety valve Check valve 2-way solenoid valve (for capacity control)
  • Page 24 1. Specifications 1.7.2 SAS6SD-5A/6A (A.C.C.S. type) (1) Compressor A100403E Aftercooler Pressure control valve Air filter Pressure sensor By-pass valve Orifice Dryer Orifice Check valve Safety valve Check valve 2-way solenoid valve (for capacity control) Oil cooler 2-way solenoid valve (for drain condensate) Oil filter TLE1 Discharge air temperature sensor...
  • Page 25 1. Specifications 1.7.3 SAS8SD-5A/6A･ ･ ･ ･ SMS8ED-5A/6A (A.C.C.S. type) (1) Compressor A100404E Aftercooler Pressure control valve Air filter Pressure sensor By-pass valve Orifice Dryer Orifice Check valve Safety valve Check valve 2-way solenoid valve (for capacity control) Oil cooler 2-way solenoid valve (for drain condensate) Oil filter TLE1...
  • Page 26 1. Specifications 1.7.4 SAS11SD-5A/6A･ ･ ･ ･ SMS11ED-5A/6A (A.C.C.S. type) (1) Compressor A100405E Aftercooler Pressure sensor Air filter Orifice By-pass valve Safety valve Dryer 2-way solenoid valve (for capacity control) Check valve 2-way solenoid valve (for drain condensate) Oil cooler TLE1 Discharge air temperature sensor Oil filter...

  • Page 27: Maintenance

    2. Maintenance 2.1 Cautions on Maintenance Job 2.1.1 Preparations before maintenance job (1) How to perform maintenance job It is important to perform maintenance jobs, always considering what kinds of equipments, tools, materials and oils should be used, what portions or parts of the machine should be inspected or adjusted or disassembled, and also what is the important points of the maintenance jobs.
  • Page 28 2. Maintenance 2.1.2 Cautions during disassembly and assembly ① Have to choose place where the machine is disassembled for maintenance job shall be clean, good ventilation and have much space to do it. ② Hove to clean and remove dust from disassemble equipment. ③...

  • Page 29: Tightening

    2. Maintenance 2.2 Tightening 2.2.1 Tightening torque Bolt Width of Tightening torque Tightening place diameter across flat N･m (kgf･cm) (mm) (mm) ①Cylinder and discharge casing socket bolt 25.0 (245) Hexagon haul ②Oil seal cover socket bolt 25.0 (245) Hexagon haul Socket bolt (4SD/4ED) 5.0 ( 51) Hexagon haul...
  • Page 30 2. Maintenance 2.2.2 General bolts and nuts tightening torque When reassembling or rebuilding, tighten bolts and nuts, according to the following torque values in the table. Low or Middle carbon steel bolt High tensile strength bolt Kind (SS400B etc…) (SCM435 etc…) Strength 4.6－6.8（4T－6T）...
  • Page 31 ＭＥＭＯ ＭＥＭＯ ＭＥＭＯ ＭＥＭＯ...
  • Page 32 2. Maintenance 2.2.3 Structure of compressor air-end SC10030AE...
  • Page 33 2. Maintenance 2.2.4 Special tools [SAS4SD, SMS4ED-5A/6A] Part name Part NO. Q'ty Remarks Plate 00817 00124 Disassembly tool for rotor and discharge casing 00817 00125 Metal pad of puller edge Bolt 00817 00126 Pulley installer press Pipe 00817 00127 Pulley installer press Bolt 00817 00128 Discharge side bearing installation tool...
  • Page 34 2. Maintenance 2.2.5 Terminal tightening torque Should be tighten terminal of electromagnet switch, thermal relay other electric equipment etc. according to following torque. Tighten torque Screw size N･m (kgf･cm) (15) (30) (50) (100) 17.2 (175) 34.0 (350) 2.2.6 Tightening torque for hose, joint etc… (1) Union joint Should be tighten union joint according to following torque.
  • Page 35 2. Maintenance (2) Bite type union Pipe have two kind of pipe, one is copper and other one is steel. The bite type union used for this pipe is to seal completely high pressure oil. Because the cutting edge of sleeve bites the steel pipe firmly and it is constructed to endure shock pressure and vibration.
  • Page 36 2. Maintenance Supply oil to 2) Coat pipe and nipple with lubrication oil these points ① Coat the sleeve and nut of pipe with lubricant (NICHIMORI LAP spray or equivalent). Supply oil to ② Coat the threaded portion and seat face of nipple these points with lubricant.
  • Page 37 2. Maintenance (3) Pipe tapered threads Sealing tapes are used to prevent any leakage of oil, water, fuel and air by stopping the space between female and male threads of metal pipe and fittings (PT thread for pipe). Be noted that how to seal varies upon the diameter of thread. 1) How to seal for tube screw larger than R1(25A) of thread diameter.
  • Page 38 2. Maintenance (4) Standard tightening torque of piping PT screw (Reference value) Unit:N･m(kgf･cm) Nominal Tightening Nominal Tightening Nominal Tightening diameter torque diameter torque diameter torque 11 (110) 65 (660) 216 (2,200) 22 (220) 108 (1,100) 2 1/2 270 (2,750) 32 (330) 1 1/4 129 (1,320) 323 (3,300)
  • Page 39 2. Maintenance (5) Nylon tube To size of nylon tube are used to this machine. One is inch size and other one is meter size. Each nylon tubes are not compatible. Inch size …… It is use spanner when tightening sleeve nad nut to piping. Meter size ……...
  • Page 40 2. Maintenance (6) Tightening for joint of nylon tube and sleeve nut Following chart is for tightening torque of each size joint and sleeve nut. [Inch size] 1) Tightening of Joint Tightening torque Screw size R (PT) N･m (kgf･cm) 7.8 (80) 13 (130) Joint Joint...
  • Page 41 2. Maintenance 2) Tightening sleeve nut (Inch size only) Installing new nylon tube, sleeve and sleeve nut, attach the nylon tube firmly to the joint connector and tighten the sleeve nut till proper revolutions by hand, and them tighten the sleeve nuts till proper turns, using a tightening tool such as spanner.
  • Page 42 2. Maintenance (7) How to install hose Pay attation followig part when install hose and nylon tube. 1) Nylon tube ① Check 1/8 and 3/16 size nylon tubes for any break. (Pipe for pressure gauge) ② Connect nylon tube, preventing it from contacting any edge of copper pipe and steel pipe nut.
  • Page 43 2. Maintenance 2) Hose ① Authentic hose when replacing it. If not, it will cause oil leakage, break and disconnection, and it leads to fire. × × × × ○ ○ ○ ○ ② Never use hose twisted. Twisted hose will cause oil leakage, break and fitting disconnection when they are loaded with high pressure, vibration and shock.

  • Page 44: Periodic Inspection/Maintenance List

    2. Maintenance 2.3 Periodic Inspection/Maintenance List 2.3.1 Periodic inspection/maintenance of compressor [SAS4SD-6SD-5A/6A,SMS4ED-5A/6A] Maintenance interval Every Every Remarks Inspection items Inspection points Daily 1 month Every Every Every 6 years 8 years 1 year 2 years 4 years (6SD) (4SD.4ED See the item “Operating Indication of each gauge ○...
  • Page 45 Maintenance interval means that periodical maintenance should be repeatedly carried out.  Use AIRMAN genuine parts and recommended oil for replacement. ※ When such parts which are not mentioned in the table need inspection and or maintenance, please contact us or distributor.
  • Page 46 2. Maintenance 2.3.3 Periodic inspection/maintenance of compressor [SAS8SD-5A/6A,SMS8ED-5A/6A] Maintenance interval Inspection items Inspection points Remarks Every Every Every Every Daily 2 month 1 year 2 years 4 years 8 years Indication of each gauge See the item “Operating method” ○ Insulation Dry or change if less than 1M Ω.
  • Page 47 Maintenance interval means that periodical maintenance should be repeatedly carried out.  Use AIRMAN genuine parts and recommended oil for replacement. ※ When such parts which are not mentioned in the table need inspection and or maintenance, please contact us or distributor.
  • Page 48 2. Maintenance 2.3.5 Periodical Inspection and maintenance (A): In case that total operation hours per one year are less than 3,000 hours [SAS11-15SD,SMS11-15ED-5A/6A] Maintenance interval Inspection items Inspection points Remarks Every Every Every Every Every Daily months 1 year 2 years 4 years 6 years 8 years...
  • Page 49  Only main components are mentioned in the table.  Maintenance interval means that periodical maintenance should be repeatedly carried out.  Use AIRMAN genuine parts and recommended oil for replacement. ＊When such parts which are not mentioned in the table need inspection and or maintenance, please contact us or distributor.
  • Page 50 2. Maintenance Maintenance interval Inspection items Inspection points Remarks Every Every Every Every Every Daily months 1 year 2 years 4 years 6 years 8 years Scavenging orifice Clean ○ strainer Scavenging orifice Re-usable after check, if Check ○ o-ring normal.
  • Page 51  Only main components are mentioned in the table.  Maintenance interval means that periodical maintenance should be repeatedly carried out.  Use AIRMAN genuine parts and recommended oil for replacement. ＊When such parts which are not mentioned in the table need inspection and or maintenance, please contact us or distributor.

  • Page 52: Inspection/Maintenance

    2. Maintenance 2.4 Inspection/Maintenance Perform this job of inspection and maintenance safely, referring to the instruction manual for routine inspection/maintenance. Herewith only such items which are not mentioned in the instruction manual supplied together with each unit shall be explained. 2.4.1 Electric motor (1) Inspection of insulation resistance of motor coil Make sure to switch off power supply switch.
  • Page 53 2. Maintenance (2) Replacement of motor bearing Perform the replacement of motor bearing according to the following procedures. ① Remove the fixing bolts for the brackets on both load and noload sides, and then remove the brackets from the frame, softly patting them with plastic hammer. ②...
  • Page 54 2. Maintenance 2.4.2 Separator receiver tank (1) Cleaning and replacing oil level gauge ① When oil level gauge is so soiled that oil level cannot be checked, remove it and spray the brake cleaning agent (used for automobiles) (components: toluene 40－45% and hexane 25－30%) into the gauge several times.
  • Page 55 2. Maintenance Features of temperature and resistance Part number:44364 06500 Temperature Resistance Permissible SAS4SD-5A (～0477) SAS4SD-6A (～0681) (℃) (Ω) value (%) SAS6SD-5A (～0221) SAS6SD-6A (～0265) 11,600 ±9 SAS8SD-5A (～0390) SAS8SD-6A (～0638) 6,280 ±8 SAS11SD-5A (～0331) SAS11SD-6A (～0452) 3,580 ±7 SAS15SD-5A ( SAS15SD-6A ( All unit All unit...
  • Page 56 2. Maintenance 2.4.5 By-pass valve (1) Principle of function The valve is provided with pellets. The pellets shrink according to the temperature of flowing oil of the valve so that the oil flowing passage can be automatically changed. When the oil temperature is low, the pellet is kept shrunken so that the oil flows through the by-pass passage of oil filter.

  • Page 57: Electrical System

    3. Electrical System 3.1 Functions 3.1.1 Specifications Item Contents ･A.C.C.S. control operation type ･Purge control operation ･Dryer advance operation Operation mode ･Remote control ･Low pressure operation (2 stages pressures selection function) ･Auto start/stop (Predicted stop time adjusting system) ･Air service pressure ･Discharge air temperature ･Ambient temperature ･Operation hour ･Separator discharge air temperature...
  • Page 58 3. Electrical System ＊Function of each output relay Symbol Function Symbol Function ･Remote selection signal When it is switched ON, remote mode ･It switches ON by operation operation is selected, and when OFF, For main magnet (motor) operation mode at machine side is selected.
  • Page 59 3. Electrical System Operation mode Contents Low pressure When two units are wired to the remote control terminal plate, both units can operation be selected for use as one service unit and the other stand-by unit or they can (2 stages pressures be operated alternatively between them.
  • Page 60 3. Electrical System 3.1.3 Controller (1) Appearance [A.C.C.S. type] HOKUETSU part number:46870 49301 (SAS4－8SD-5A/6A･SMS4－8ED-5A/6A) HOKUETSU part number:46870 50901 (SAS11－15SD-5A/6A･SMS11－15ED-5A/6A) DIP switch SC10005E < Internal setting > The following settings can be done by DIP switch on board. Item Details ON at emergency Setting 1 Dryer trouble selection OFF at warning Switched ON, A.C.C.S.
  • Page 61 3. Electrical System (2) Exterior connection drawing [A.C.C.S. type] A100159-2E...
  • Page 62 3. Electrical System (3) Circuit voltage [A.C.C.S. type] SC10009 Item Circuit voltage (V) Remark Power supply S1 (for controller) AC200/200/220 Power supply R2 (for controller) AC200/200/220 Remote abnormality/warning indicator AC100－220 Supplied by customer lamp Remote operation indicator lamp AC100－220 Supplied by customer Electromagnet switch of dryer AC200/200/220 Electromagnet switch of compressor...
  • Page 63 3. Electrical System Item Circuit voltage Remark － Sensor GND Internal ground connection Normal : 0V (between CN2-13) Abnormal : OFF B connect Dryer Abnormal : DC12V abnormality Time lag : 1 second (between CN2-13) － Blank Auxiliary During operation (ON) : 0V (between CN2-13) When remote control, Remote start switch...
  • Page 64 3. Electrical System 3.1.4 Checking indication of warning, abnormalities and also checking emergency stop Trouble Time Item How to check Normal function code Remove the sensor from controller and Discharge air Trouble code lamp load resistance of 640±15Ω to controller temperature flickers.
  • Page 65 3. Electrical System Trouble Time Item How to check Normal function code Disconnection of During operation, remove the sensor from Trouble code lamp discharge air controller. (Be careful about electric flickers and unit temperature seconds shock.) stops. sensor Disconnection of separator discharge air During operation, remove the sensor from...
  • Page 66 3. Electrical System Upper side drawing SC10010 Front view Side view SAS11SD-5A/6A (Dryer built-in Type) 1. Dryer 5. Main motor thermal relay 2. Air filter differential pressure switch 6. Discharge air temperature sensor 3. Pressure sensor 7. Separator discharge air temperature sensor 4.

  • Page 67: Electrical Parts

    3. Electrical System 3.2 Electrical Parts 3.2.1 Specifications (1) Starter, Solenoid valve SAS4SD-5A/6A・SMS4ED-5A/6A Symbol Name Maker Model Remarks MSO-N18 Thermal set value: MITSUBISHI 42(49) Electromagnet switch AC200V, 15.0/14.5/13.5A Electric RC=15A(12－18A) 200/220V type Fuse holder Sakazume FH-15B(AC250V,10A) φ6.4×30(AC250V,5A) Fuse Not specified...
  • Page 68 3. Electrical System SAS11SD-5A/6A・SMS11ED-5A/6A Symbol Name Maker Model Remarks MSO- N50 Thermal set value: AC200V, 47.0/44.5/41.0A RC=42A(34－50A) Electromagnet switch MITSUBISHI 200/220V type 42(49) (Motor) Electric MSO-N25 Thermal set value: AC200V, 23.5/22.5/20.5A RC=22A(18－26A) 400/440V type MSO-N10 Electromagnet switch MITSUBISHI Thermal set value: 52C(49C) AC200V, (Dryer)
  • Page 69 3. Electrical System (3) Electromagnet switch MSO-N10 M3.5 M3.5 SC10011E MSO-N18 M3.5 M3.5 SC10012E MSO-N25,N35 M3.5 M3.5 SC10013E MSO-N50,N65 SC10014E ※2 mm longer in longitudinal direction toward power supply between N50 and N65. (L=158→160mm) 3-13...
  • Page 70 3. Electrical System 3.2.2 Solenoid valve (1) For capacity control [For purge] (SV1) HOKUETSU part number:46811 12200 ･Closed while electricity is supplied (Rc 1/4) (Rc 1/4) S_M039 Diameter of orifice (φ3mm) (2) For dryer draining condensate (SV6) HOKUETSU part number:46811 25900 (Rc 1/4) (Rc 1/4) Diameter of orifice (φ2mm)
  • Page 71 3. Electrical System SAS15SD,15VD,SMS15ED-5A/6A HOKUETSU part number:32148 03100 ･Operating pressure : 6.22kPa ･A Contact SC10038 3.2.4 Thermo sensor (1) Discharge air temperature sensor and separator discharge air temperature sensor HOKUETSU part number: 44364 06500 SC10017 ※ For the relation between temperature and resistance, refer to 2.4.3. (2) Ambient temperature sensor HOKUETSU part number: 44364 08200...

  • Page 72: Electrical Wiring Diagram

    3. Electrical System 3.3 Electrical Wiring Diagram 3.3.1 SAS4SD･ ･ ･ ･ SMS4ED-5A/6A (200/220V Type) [0051-] A080329E 3-16...
  • Page 73 3. Electrical System 3.3.2 SAS6SD-5A/6A (200/220V Type) [0051-] A090303E 3-17...
  • Page 74 3. Electrical System 3.3.3 SAS8SD･ ･ ･ ･ SMS8ED-5A/6A [0051-] (200/220V Type) (400/440V Type) A090286E A090036-1E 3-18...
  • Page 75 3. Electrical System 3.3.4 SAS11SD･ ･ ･ ･ SMS11ED-5A/6A (A.C.C.S. type) [0051-] (200/220V Type) (400/440V Type) Dryer built-in type only Dryer built-in type only A100159E A100159-2E 3-19...
  • Page 76 3. Electrical System 3.3.5 SAS15SD･ ･ ･ ･ SMS15ED-5A/6A (A.C.C.S. type) [0051-] (200/220V Type) (400/440V Type) Dryer built-in type only Dryer built-in type only A100159E A100259-1E 3-20...

  • Page 77: Various Setting Methods

    3. Electrical System 3.4 Various Setting Methods 3.4.1 Table of various set values [A.C.C.S. type] Primary Range of set values set value Indi- Discharge Item cation pressure Set value Pressure (MPa) 0.69 0.83 0.93 Full load recovering 50－85 0.5－0.85 pressure ※...
  • Page 78 3. Electrical System 3.4.2 Changing procedures of various setting [A.C.C.S. type] A090474E SAS11SD Operation panel (1) When display selector switch is pressed longer (than 3 seconds), first L. (full load recovering pressure PL) is displayed. (2) Each time display selector switch is pressed, each indication will be selected. Then each time it is pressed one time, H.

  • Page 79: Troubleshooting

    4. Troubleshooting 4.1 How to Proceed Diagnosis When performing failure diagnosis, pay special attention to the followings, observing general cautions. 4.1.1 Safety caution (1) Removing such cap and/or plug for receiver tank, fuel tanks and pipes where pressure is loaded, stop the machine and relieve all the interior pressure.
  • Page 80 4. Troubleshooting (5) Procedures of diagnosis When you become well experienced, you can find out the cause easily during the process of confirmation (4). But easy understanding could cause unexpected failure. So check and judge it according to the following procedures. ①Check the easiest thing or portion first.

  • Page 81: Failure Of Capacity Control System

    4. Troubleshooting 4.2 Failure of Capacity Control System 4.2.1 Unloader will not function and safety valve blows off. [A.C.C.S. type] Normal Repair or replace safety Check set up pressure Faulty safety valve valve High Possible Faulty pressure Check whether it is Re-adjust pressure adjustment possible to adjust pressure...
  • Page 82 4. Troubleshooting Countermeasures Mark Item Cause & Explanation & Remarks Check whether it is Method of adjustment…refer to 3.4.2 possible to adjust pressure Check function of Check if the pressure sensor functions properly. Check pressure controller If it does not indicate proper signal, the sensor function (refer pressure sensor is faulty.

  • Page 83: Function Of Emergency Switch

    4. Troubleshooting 4.3 Function of Emergency Switch 4.3.1 Unit stops or trouble code indicator glows due to abnormality of discharge air temperature or separator discharge air temperature. Over 40 ℃ Check ambient Ambient temperature too Lower ambient temperature high temperature Ａ...
  • Page 84 4. Troubleshooting Countermeasures Mark Item Cause & Explanation & Remarks Lower ambient It sometime happen that temperature of the Ventilate suction and temperature room is heated over 40℃ by compressor discharge air fully of the room installed in poorly ventilated. It causes overheating.
  • Page 85 4. Troubleshooting 4.3.2 Trouble code indicator glows and unit stops due to overload. [In case it stops before full load operation starts] Check whether Not turn Trouble of compressor Repair compressor compressor Air- end can be Air-end Air-end turned by hand It can be turned by hand It occurs Check if any abnormal...
  • Page 86 4. Troubleshooting Countermeasures Mark Item Cause & Explanation & Remarks Check if any Check such items as shortage of power supply, abnormal voltage length of wiring, and cable size. They cause drop occurs abnormal drop of voltage. 《Reference》 Allowable voltage drop rate shall be within 15％.
  • Page 87 4. Troubleshooting 4.3.4 Unit stops or trouble code indicator glows due to dryer trouble. Overheated Remove cause of Check for overheating of Overheating dryer overheat Ａ overheated Check for looseness or Fault found disconnection of wire Faulty wire connection Check and repair connection Nothing wrong found Check function of...
  • Page 88 4. Troubleshooting (1) Troubleshooting of dryer 1. Unable to run No power supplied Check power supply of Check and repair Faulty wire connection dryer Power supplied Faulty wire connection Check voltage Adjust to rated voltage Normal Malfunction of relay Check function of relay Abnormal (SAS･SMS4－8) and (SAS･SMS4－8) and...
  • Page 89 4. Troubleshooting 2. Water drained at outlet Check whether drain pipe is not broken or Clogged solenoid valve (SV6) for Drain pipe is found Check and repair draining condensate is clogged not clogged with foreign matter Not clogged Check whether solenoid Solenoid valve (SV6) for Melt freezes and Freeze...
  • Page 90 4. Troubleshooting 3. Able to start, but stop soon Check voltage of power Adjust to rated voltage Faulty wire connection supply Normal Normal Faulty fan control Check whether condenser Check and replace pressure switch fan can turn continuously Abnormal Abnormal Check function of Malfunction fan motor Check and replace...
  • Page 91 4. Troubleshooting (2) Countermeasures for dryer troubles (In case of example SAS/SMS11) 1. In case the interior of heat exchanger gets frozen when the dryer is operated with the indicator of refrigerant pressure gauge placed lower than the green zone. ①...

  • Page 92: Others

    4. Troubleshooting 4.4 Others 4.4.1 Oil is found mixed in discharge air. (Oil consumption increases) Too much Too much oil Drain oil Check comp. oil level Proper level Less than 0.39MPa(4kgf/cm Check and adjust Low discharge pressure Check discharge pressure pressure control valve More than 0.39MPa(4kgf/cm Check separator...
  • Page 93 4. Troubleshooting 4.4.3 Compressor start and stops too frequently while no air is consumed. (Auto start/stop operation) Air leaks Repair air leaking Air leaks from piping Check air leak from piping portion No air leaks Check any air leaks from Air leaks Repair or replace Faulty seat...
  • Page 94 4. Troubleshooting 4.4.5 Even when each control switch is pushed ON, the machine will not start. Abnormal Repair or replace Check function of Malfunction of controller controller controller Ａ Countermeasures Mark Item Cause & Explanation & Remarks Check function of Check if any key is pushed due to incorrect Check installation of controller...

  • Page 95: References Data

    5. Reference Data 5.1 Structure of Parts 5.1.1 Vacuum relief valve (Incorporated in unloader body [only for SAS/SMS8－ － － － 11]) Separator receiver tank Piston PILOT Solenoid valve for capacity control During assembling, carefully install valve so that it should be straight. (If it is installed slant, the valve top could Valve SC10018...

  • Page 96: Table Of Reference Data

    5. Reference Data 5.2 Table of Reference Data 5.2.1 Table of set values SAS4SD SAS8SD SAS11SD SAS15SD -5A/6A SAS6SD -5A/6A -5A/6A -5A/6A Item Unit SMS4ED -5A/6A SMS8ED SMS11ED SMS15ED -5A/6A -5A/6A -5A/6A -5A/6A ・Protection Devices Set value of main motor thermal relay Please refer to 3.2.1.

  • Page 97: List Of Belt Tension (For Sonic Tension Meter)

    5. Reference Data 5.3 List of Belt Tension (for sonic tension meter) Start testing belt tension, using sonic tension meter, according to the following procedures. This instruction is based on GATES Sonic Tension Tester. (How to input data for sonic tension meter is referred to the manual provided together with the meter by GATES UNITTA ASIA.) (1) Inputting data Enter the following three items into the meter.

  • Page 98: Table Of Oil Supply (For Reference)

    Change oil as completely as possible, leaving no residual oil. Model Quantity of oil (L) Brand SAS4SD-5A/6A SMS4ED-5A/6A SAS6SD-5A/6A Shell corena oil RS32 SAS8SD-5A/6A...
  • Page 99 北 越 工 業 株 式 会 社 発行 本社工場 新潟県燕市下粟生津3074 TEL ０２５６－９３－５５７１ FAX ０２５６－９４－７５６７ (無断複写・転載を禁ず) ＨＯＫＵＥＴＳＵ ＩＮＤＵＳＴＲＩＥＳ ＣＯ., ＬＴＤ. 8TH FLOOR SHINJUKU SAN-EI BLDG, 22-2 NISHI-SHINJUKU 1-CHOME,SHINJUKU-KU TOKYO 160-0023 JAPAN TEL:81-3-3348-7281 FAX:81-3-3348-7289 URL:http//www.airman.co.jp Copyright(C)2010 HOKUETSU INDUSTRIES CO., LTD. All Rights Reserved. NSC-0053-1 PRINTED IN JAPAN 2014.11...

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