Southern Cross LGCY27/10 Series Instruction Manual

Diesel engine portable rotary screw air compressor

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DIESEL ENGINE PORTABLE ROTARY SCREW

AIR

COMPRESSOR INSTRUCTION MANUAL

Model: LGCY27/10&LGCY32/10SERIES

Table of Contents

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Summary of Contents for Southern Cross LGCY27/10 Series

Page 1 DIESEL ENGINE PORTABLE ROTARY SCREW COMPRESSOR INSTRUCTION MANUAL Model: LGCY27/10&LGCY32/10SERIES...
Page 2: Publisher's Note
Publisher's Note This manual describes installation safety precautions, each-system structure functions, operation and maintenance methods of LGCY series air compressor manufactured by Zhejiang Kaishan Compressor Co., Ltd. The operator shall carefully read this manual and can operate and maintain the unit only after fully understanding the structure, functions and safety precautions of each part.
Page 3: Table Of Contents
Table of Contents Publisher's Note ............................1 Table of Contents ............................. 1 Chapter I Equipment Overview and Safety Warning ................... 2 Chapter II Structure and Operating Principle ....................9 Chapter III Main Performance and Technical Parameters ................24 Chapter IV Installation and Commissioning (Adjustment) ................. 25 Chapter V Use and Operation ........................
Page 4: Chapter I Equipment Overview And Safety Warning
Chapter I Equipment Overview and Safety Warning 1 Equipment Overview The LGCY series of air compressor is elaborately designed and manufactured by us for customers, mainly powered by diesel engine, connected with the air compressor handpiece through coupling to generate air and further drive pneumatic tools such as jack drill to operate and drill holes;...
Page 5 2.1.6 The lifting height shall be appropriate. 2.1.7 The lifting acceleration and deceleration shall be in the allowable safe range. 2.1.8 Ensure that all personnel are clear of the danger area during the lift. 2.1.9 Ensure the bearing capacity of placement ground when selecting the site for placing the compressor.
Page 6 2.3 Pressure Hazard A. The allowable maximum working pressure of pneumatic tool shall be higher than the rated discharge pressure of compressor. B. The pipe, valve and facilities shall have appropriate size and meet the requirements of working pressure. C. Do not apply external force on the compressor air outlet ball valve whilst under pressure. D.
Page 7 K. Ensure that the surrounding area is kept clear of loose debris, rubbish and other inflammable rubbish near the compressor. L. During maintenance activities open all doors to prevent combustible vapour / fumes from accumulating. M. Do not place the compressor near or under vegetation to prevent contact with hot exhaust gases and or exhaust components.
Page 8 2.7 Toxicity and Stimulating Substance A. Do not use the compressor air for breathing. B. Only operate the compressor outdoors or at a fully ventilated area. C. When installing the compressor, take into account the air intake position and do not inhale exhaust air or other toxic or corrosive substances.
Page 9 2.10 Jump / Booster Start A. The safety precautions in the previous sections of this manual shall be read carefully before jump start. Jump start is only an emergency measure taken when the battery capacity of unit is insufficient. B. The battery may contain hydrogen and there shall be no flames, sparks or other sources of ignition around the unit.
Page 10 similar operation, you must thoroughly clean the fuel and lubricating oil tank. For example, cleaning with steam. 12.6 Protect the electrical, regulation components, air filter, etc. against moisture erosion, particularly when cleaning with steam. 12.7 Do not use the flammable solvent when cleaning components. Please note that the cleaning liquid may generate poisonous air.
Page 11: Chapter Ii Structure And Operating Principle
Chapter II Structure and Operating Principle 1 Structure 1.1 Equipment Structure (as shown in the figure) LGCY Series Page 9...
Page 12 1.2 System flow (see Figure 1): main air circuit system, control air circuit system, oil circuit system. LGCY Series Page 10...
Page 13 1.2.1 Main Air Circuit System: Composition: composed of air filter, intake valve, screw compressor, oil-air separator (including oil content core) and minimum pressure valve, etc. Operating principle: After removed of dust and impurities by the air filter, the external air enters the intake cavity of screw compressor through the air intake valve and is mixed with the injected lubricating oil during compression.
Page 14 C. Screw Compressor As the rotor rotates, the size of the intertooth space formed by the female and male rotors changes to complete the suction, compression and discharge of air. At the same time of compression, the lubricating oil is also injected into the compression chamber due to the pressure difference and mixed with the air and discharged to the oil separator together.
Page 15 1.2.2 Control Air Circuit System: Composition: proportional valve (pressure regulator), air release valve, air intake valve servo cylinder and safety valve; Operating principle: After the start button is pressed (turning the LOAD/UNLOAD switching valve to position 2 “- or UNLOAD” and driving the screw handpiece in the process of diesel engine start), the air enters the handpiece through the air intake valve to quickly generate pressure.
Page 16 Rated pressure adjustment: The equipment is set as per the rated pressure of 1.0MPa before being delivered. If the maximum pressure required for the user's air equipment is 1.0 MPa, the user can use it directly after start-up, without resetting the working pressure of the pressure regulator by yourself; if the maximum pressure required for some users’...
Page 17 Function: for ensuring the compressor normally operates under the set rated pressure. A. LOAD/UNLOAD switching valve The LOAD/UNLOAD switching valve is manual and used to switch load/unload. Unload during startup and before shutdown, and load during working time. The equipment full-automatically regulates the operation relying on the proportional valve.
Page 18 in time (such as failure of intake air regulation, malfunction of diesel engine throttle adjustment, etc.) and promptly eliminated. For large displacement compressor, if the air consumption of system suddenly decreases to zero, the pressure rise speed may exceed the speed of pneumatic adjustment, to open the safety valve to release pressure.
Page 19 The oil cooler cools the circulating lubricating oil. The fins of the oil cooler are easily covered by dust to affect the cooling effect, which may cause stop due to exhaust air overtemperature. Therefore, it should be purged and cleaned at an interval to ensure its cooling effect. B.
Page 20 passing through the oil cooler. When the oil temperature rises to the lower limit (about 83 ° C) of the temperature control valve opening temperature, the temperature control valve is gradually opened to the passage of the oil cooler for cooling. Usually, the passage from the temperature control valve to the oil cooler is fully opened when the oil temperature rises to about 86 °...
Page 21 compressed air is the highest at this moment), the compressed air begins to be discharged until the meshing surface of the tooth peak and the intertooth space moves to the exhaust end face of the enclosure. At this moment, the intertooth space between the two-rotor meshing surface and enclosure exhaust port is zero.
Page 22 JCD-900-type diesel manual fixed screw compressor controller Overview JCD-900MC-type diesel screw air compressor dynamic controller (hereinafter referred to as controller) is a high-performance single-chip micro-computer controlled automatic diesel air compressor dynamic monitoring system, using the latest type of MCU, combined with advanced control technology , can accurately detect and display the engine speed, oil pressure, water temperature, tank level, the air compressor exhaust pressure, exhaust temperature, and according to set parameters for the monitoring of the test, issue the appropriate control signals, and through sound, light signals the alarm.
Page 23 b) Accuracy: 0.5; c) Sensor: Cu50 copper resistance sensors. 6. Diesel fuel level measurement a) Measurement range: full range of measurement; b) Accuracy: 1%; c) Sensor: Slide resistance level sensor. 7. Exhaust pressure measurement a) Measurement range: 0.000 ~ 2.500Mpa; b) Accuracy: 0.5;...
Page 24 Indicator a) Battery Charger: Indicates that the battery is not being charged by the engine. b) Preheating : Indicates the engine warm state) Running: When the engine running instructions. c) Alarm: When an alarm signal light. d) Air pres. Alert: Indicates the discharge pressure exceeds the pressure limit, an alarm signal. e) Oil filter alert: Indicates the oil filters exceed pressure differential limits.
Page 25 8. Wiring diagram LGCY Series Page 23...
Page 26: Chapter Iii Main Performance And Technical Parameters
Chapter III Main Performance and Technical Parameters 1 Main Technical Parameters Model LGCY-27/10-K LGCY-32/10-K Whole equipment Nominal volume flow (m /min) Rated discharge pressure (Mpa) Unit weight (kg) 5100 5250 Length × width × height (mm) 4200×2200×2520 4200×2200×2520 Air storage tank capacity L Fuel tank capacity L Air supply valve specification ×...
Page 27: Chapter Iv Installation And Commissioning (Adjustment)
Chapter IV Installation and Commissioning (Adjustment) 1 Compressor Parking 1.1 The compressor unit must be parked on a level and flat floor. The maximum allowable inclination is 15º. 1.2 If necessary, put a wedge on the bottom to avoid displacement of the air compressor unit; 1.3 To avoid dusty environment, place the compressor in a place that is as clean as possible.
Page 28: Chapter V Use And Operation
Chapter V Use and Operation 1 Inspection before Start-up 1.1 Check the oil level of the diesel engine oil: it should be between the upper and lower scales of oil level gauge. 1.2 Check the coolant level of the diesel engine. If it is insufficient, please replenish it in time. 1.3 Check the fuel tank liquid level.
Page 29 2 Start-up and Operation 2.1 Switch on the main power. 2.2 Turn on the “Power” switch on the control panel to switch on the circuit. 2.3 Press the “Start” button on the control panel for a few seconds to start the diesel engine. Note: If the start-up fails, please restart in 3 minutes.
Page 30 4 Notes during Operation 4.1 The compressor must not be operated above rated conditions (e.g., pressure, temperature, speed, etc.). 4.2 When there is abnormal sound, abnormal vibration or any indication showing internal overheat during operation, stop the equipment immediately. 4.3 When the compressor is running, all doors shall be closed, all guards must be in place and secure. 4.4 There is pressure in the pipeline and the container during operation.
Page 31 LGCY Series Page 29...
Page 32: Chapter Vi Common Faults Analysis And Elimination
Chapter VI Common Faults Analysis and Elimination Fault Cause Elimination methods 1. Check the fuel level and refuel if necessary 2. Eliminate it 1. Insufficient oil volume of fuel tank 3. Check if the wiring is correct. 2. Fuel line air leakage 4.
Page 33 1. LOAD/UNLOAD switching valve failure 2. Air leakage in the control air source 1. Check and repair it Compressor line 2. Repair or replace the pipeline loading 3. The servo cylinder membrane 3. Replace it failure after damage. 4. Inspect it start-up 4.
Page 34 during stop LGCY Series Page 32...
Page 35: Chapter Vii Maintenance
Chapter VII Maintenance The maintenance operation hereto applies to general conditions. The maintenance must be more frequent under the environment of high temperature, high humidity, high altitude and highly polluted environment. 1 Routine Maintenance (per 10 running hours) 1.1 Drain the water at the bottom of oil-air separator. (required after extended shut down or short run operation) 1.2 Check the oil level of fuel tank;...
Page 36 4 Maintenance per 1500 Running Hours 4.1 Replace the primary air filter element (secondary every 3000 hours) 4.2 Check the safety valve: to ensure that the safety valve is not blocked, deformed or malfunctioning. 4.3 Check the maximum speed and idle speed of the diesel engine; 4.4 Check sealing of oil, air and water circuit 4.5 Replace compressor oil filters 4.6 Check and top up compressor lubricant.
Page 37 8 Transportation and Storage 8.1 The lifting ring is located under the small window at the top of the compressor. Carry out lifting after ensuring the lifting equipment has sufficient capacity. 8.2 When lifting, it is not allowed to add heavy items in the unit, which will cause the center of gravity of the unit to shift, resulting in unbalanced lifting.
Page 38: Chapter Viii Spare Parts
Chapter VIII Spare Parts 1 How to Order Spare Parts? You must order from us or our agent (including the diesel engine manufacturer’s agent) in order to obtain the original high-quality spare parts. Please refer to Components Drawings of LGCY series relevant model. You shall provide: equipment model, components number, name and quantity Replacement and Maintenance Component No.
Page 39 Reminder: It is recommended to prepare sufficient spare parts as described in the table in order to make the best use of compressor. Contact Information HEAD OFFICE: 134 - 140 Atlantic Drive Keysborough, VIC 3173 AUSTRALIA Ph: + 61 3 8769 2800 Fax: + 61 3 8769 2889 Email: service@sccomp.com.au...

This manual is also suitable for:

Lgcy32/10 series Jcd-900 series Lgcy-27/10-k Lgcy-32/10-k