Tiêu đề Instruction Manual Hiscrew 2000 Hitachi rotary screw compressor Air cooled Model OSP 22 - 37AI.pdf ✅

What Marks Say: INSTRUCTION MANUAL ● This manual expresses the matters that need your attention as below. ● Do not fail to observe “WARNING” and “CAUTION,” as they assume considerable importance to safety. : This is a warning. This assumes possible death or severe injury to the operator if handled wrongly. : This is a caution. This assumes possible injury to the operator and physical damage, if handled wrongly. : This means the things that need attention other than WARNING and CAUTION. MEMO WARNING : This means prohibition. : This means convenient information to know. : This shows reference page number. : This shows the information specific to the models with a built-in air dryer. IMPORTANT ☞ CAUTION HITACHI ROTARY SCREW COMPRESSOR Air-Cooled Type, Before you start operating, be sure to read this manual carefully in order to operate the machine safely and properly. Also, prepare the manual near the machine to make it available at anytime, and refer to it as the need arises. Model : OSP-22S5AI OSP-22S5ARI OSP-22S6AI OSP-22S6ARI OSP-22M5AI OSP-22M5ARI OSP-22M6AI OSP-22M6ARI OSP-37S5AI OSP-37S5ARI OSP-37S6AI OSP-37S6ARI OSP-37M5AI OSP-37M5ARI OSP-37M6AI OSP-37M6ARI [Without a built-in air dryer] [With a built-in air dryer] 2000 Series
Characteristics of this Manual ● This manual serves daily operators and maintenance personnel of the compressor as an instructive materials including its introduction, operation, daily control and periodic ser- vicing. ● Before installation of the compressor, read the manual carefully and understand its con- tent and follow the instructions given by it when in use. Also, prepare the manual near the machine to make it available at anytime, and refer to it as the need arises. ● If you have anything unclear or any question, please ask your dealer or your nearest Hitachi regional office. ● It is convenient for ordering spare part, periodic maintenance and overhaul if type and serial number of the compressor are filled into the back cover of the manual. ■ International System of Units (SI): For the unit of pressure the International System of Units (SI) is used throughout this manual. To convert it into the conventional system of units, use the following conversion formula: 7 kgf/cm2 = 0.69 MPa or 1 kgf/cm2 = 0.098 MPa ■ Description of Type Never remove a protective device from the air compressor or modify the air compressor. Never fail to install an earth leakage circuit breaker on the power cable. It prevents a ground fault burning accident. Never use the A as a respiratory appliance by which a person breathes the compressed air directly. WARNING O S P - 22 S 5 A R I Type I (2000 Series) With a built-in Air Dryer Air Cooled Type Frequency (5:50Hz, 6:60Hz) S: I-Type Control, M: P-Type Control Output (kW) Oil Flooded Type SCREW Type Package Type ● Hitachi may make improvements and/or changes in the products described in this publication at any time without notice.
1 CONTENTS 1. TO USE IN SAFETY ······························ 2 2. PARTS DESCRIPTION AND THEIR FUNCTIONS ··· 4 2.1 Appearance ········································ 4 2.2 Main Component Units and their Functions ··························· 5 3. HOW TO OPERATE······························· 6 3.1 Air Compressor Instrumentation ·····6 3.2 How to Use the Digital Monitor and its Controls ································· 8 3.3 Initial Start-Up ·································· 10 3.4 Setting of the Control Functions ······12 3.5 Daily Operation ································ 15 4. DAILY CHECK······································ 17 4.1 Daily Operation Management·········17 4.2 Control of Condensate···················· 17 4.3 Lubricant Management ···················18 5. TROUBLESHOOTING ························· 20 5.1 When ALARM or SHUTDOWN is Displayed······································ 20 5.2 Override Operation·························· 21 5.3 SHUTDOWN/ALARM Indications on the Instrument Panel ····················· 23 5.4 A List of SHUTDOWNS Not Displayed on Instrument Panel ·······26 6. SYSTEM OF EACH COMPONENT ····· 28 6.1 Compressed Air/Lubricant System ·····28 6.2 Capacity Control System ················29 6.3 Dryer System ··································· 33 7. INSTRUCTIONS FOR INSTALLATION ···· 34 7.1 Verification of Components ···········34 7.2 Instructions When Conveying········34 7.3 Instructions When Installing ··········35 7.4 Instructions When Piping ···············36 7.5 Compressor Room Ventilation·······37 7.6 Instructions on Electrical Wiring ········38 8. PERIODIC MAINTENANCE················· 44 8.1 Periodic Maintenance for Compressor······44 8.2 Maintenance Standards (A) ············45 8.3 Maintenance Standards (B) ············46 8.4 Auto Drain Trap for Dryer ···············47 8.5 Performance Check of Relief Valve ·······48 8.6 Performance Check of Capacity Control System ················48 8.7 Replacement of Oil Filter Element ·········49 8.8 Cleaning and Replacement of Air Intake Filter Element ·················50 8.9 Cleaning of Cooler ·························· 51 8.10 Inspection and Replacement of Minimum Pressure / Check Valve ·······52 8.11 Replacement of Oil Separator Element ·····53 8.12 Inspection of Belt ···························· 55 9. WHEN IT IS NOT USED FOR LONG TIME ····· 56 10. PARTS LIST ······································· 57 11. OPERATION RECORD LOGBOOK ··· 67 12. STANDARD SPECIFICATION ··········· 69 DAILY CHECK INSTALLING · PLUMBING · ELECTRICAL WIRING PERIODIC MAINTENANCE
2 1. TO USE IN SAFETY In order to operate the machine properly and safely, it is indispensable to read care- fully and follow warnings and instructions hereunder mentioned prior to its use. The warnings and instructions on labels are attached to the places shown in the figure below. WARNING DETERIORARTED OR FLAMMABLE OIL! ● Replace the oil and the oil separator (element and housing) regularly as scheduled by the Instruction Manual. Failure to observe this may deteriorate the oil and eventually cause a fire and/or explosion. ● Replace the oil separator (element and housing) whenever the housing is scratched, deformed, or corroded. Otherwise, it may be damaged, ruptured allowing the oil to gush out, or exploded. WARNING CAUTION WARNING HOT OIL UNDER PRESSURE! Do not open the oil-draining valve when the air compressor is operating. Failure to observe this may cause the hot pressurized oil to gush and eventually you may be burnt or injured. WARNING WARNING ROTATING PARTS UNDER THE INCOMING-AIR LOUVERS! Keep your hands and any objects away from the incoming-air louvers because the cooling fan is underneath. HOT! Do not loosen the housing when the air compressor is operating or immediately after you have stopped it (that is, the system is still internally pressurized). Otherwise, the hot pressurized air and/or oil may gush out and eventually you may be burnt or injured. Carefully read the Instruction Manual before checking or replacing the oil separator. ● Replace the oil separator (element and housing) whenever the housing is scratched, deformed, or corroded. Otherwise, it may be damaged, ruptured allowing the oil to gush out, or exploded. ● Before checking or replacing the oil separator, stop the air compressor, disconnect the power, and make sure that the discharge air pressure gauge reads 0 (zero) MPa. ● Do not touch the oil separator when it is still hot. Otherwise, you may be burnt in your hands. ● Do not use an ordinary filter wrench or pipe wrench on the market for loosening and fastening the housing, because such a wrench may deform or rupture the housing and eventually the oil may gush out. Instead, use the Hitachi’s special tool. For further informa- tion on the special tool, contact a Hitachi’s distributor. ● Replace the element, housing, and square ring at the same time. For further details, read the Instruction Manual. HOT OIL UNDER PRESSURE! Do not touch the air compressor when the air compressor is operating or immediately after you have stopped it. Failure to observe this may cause you to be burnt.