Micom time setting and troubleshooting of the GRH3 air compressor

Micom time setting and troubleshooting of the GRH3 air compressor
How to find the causes and repair water chiller

How to find the causes and repair water chiller

In the process of operation and use of air conditioners in general and chillers in particular, there are many incidents that make users face with many difficulties. In this article we provide readers with the most basic knowledge to determine the causes, phenomena and remedies when air conditioning (chiller) is in trouble.To help you deal with problems during the machine operation and use, we would like to introduce some of the following common problems:
How to maintain air dryer?

How to maintain air dryer?

Bảo dưỡng máy sấy khí như thế nào? Kiểm tra xe ống thoát khí, thoát nước hình chữ U có thoát khí nén và nước cứng bình thường không. Hãy dọn dẹp một tháng hơn một lần ống thoát hình chữ U. Kiểm tra xem có bộ phận nối ống nào bị rò rỉ không. Hãy duy trì cách ổn định nhiệt độ bên trong ( dưới 38oC) và nhiệt độ cửa vào khí nén ( dưới 38oC). Đồng thời phải dọn dẹp theo chu kì để bụi, tạp chất không phủ lên tụ điện của bộ làm mát sau và máy sấy khí ( cách khoảng 1-2 tuần)
Kaeser air compressor maintenance -  CSD and CSDX Series

Kaeser air compressor maintenance - CSD and CSDX Series

New CSD screw air compressor meets all customer requirements: high energy efficiency, low noise, very smooth running, easy use and maintenance, providing good quality compressed air. All these advantages are achieved through innovations in airend design, drive systems, cooling and ventilation ...
Compressors equipment repairs

Compressors equipment repairs

Screw air compressors are in the important position in the industrial process, therefore all aggregates break and troubleshooting affect to industrial process in general and have not expected results. Screw air compressors quality and advantages are undeniable, but every mechanism is run-out eventually, some parts do not operate stably, some are out of operation.

Guidelines for inspection of Handsome II

Wednesday - 31/07/2019 21:39

Guidelines for inspection of Handsome II

Inspection intervals and inspection items depend on the installation site as well as operating conditions. The table below provides the rough guidlines. Sound operation is expected if the guidelines are followed.

Parts Inspection  items. Daily Semi-annually
( every 3000h)

( every 6000h)
Every 2 years
Overhaul every 4 years Remarks
Dust filte Check and leaning *        

Cleaning interval depends on the operating conditions /
As a guideline, clean the machine every three months /
Increase or decrease the cleaning frequency according to the operating conditions.
Change dust filter if damage.

Suction filter Check for contamination or cleaning .     *    

The severity of contamination and clogging differs according to the operation conditions. Change suction filter if badly contaminated.

Oil filter cartridge Check and cleaning .     (0)    

Check the fitting part. If improperly fit, replace the cartrige.

Oil separator element. Regular change.     (0)    

Change element when changing lubricating oil.
Change it if lubricating oil recovery is insufficient.

Compressor machnical seal. Check.       * (0)


Change.         (0)


Bearing for compressor. Check and cleaning.     *    

Change silencer if badly contaminated.

Oil cooler
After cooler /Bộ làm mát dâu.
Check on fin for dirtiness and cleaning     *    

Increase or decrease the cleaning frequency  depends on the operating conditions

Dryer condenser Check and cleaning     *    

Clean condenser together with cooler

Poly V-belt Check or retension     *    

Check V-belt for tension, wear, damage, crack and slipping.

Change         (0)

Change V-belt every four years or 12000h whichever comes earlier

Volumetric regulating valve diaphragm Functional check and change     *    

Replace in case of malfuntion

Presure control valve     *    
Solenoid valve Funtional check.          
Safety valve          
Dryer solenoid valve ( for dryer intergrated types) *        

Clean or change  in case of malfuntion

Drain separator( For  unit w/o dryer) *        

Clean or change  in case of malfuntion

Main motor Insulation test     *    

Motor is usable if resistance is 10 Ω or more when cooled.

Bearing change       * (0)


Starting board(Magnets, relays, wiring, etc.) Funtional check          


Sensor Funtional check          

Replace with new one in case of malfuntion

Oil gauge Funtional check *        

Make sure the oil level is within the range between the upper limit and the lower limit. If it’s below the lower limit, replenish  lubricant. The oil level falls by approx 30mm when 24 operation is continued for one month

Lubricating oil Regular change   (0)      


Lubricating oil Regular change   (0)      

As a guideline, change every two years or 3000h

  • Change parts marked with * when defects or errors are observed
  • Change parts marked with (0 )   
  • Warranty period of this machine shall be 12 months from the date of completion of the test run 15 months from the  maintenance are of shipment, whichever comes earlier.
  • Standards for listed based on normally expected practices.

  Overhaul the machine every 4 years, regardless of operation hours. At the same time, change bearings and clean the coil of the motor.


Minh Phu provides maintenance and repair services for air compressors, in addition Minh Phu also provides spare parts for air compressors with high quality at reasonable prices. For further information, please contact (+84)919 23 28 26. Sincerely thank you for your interest and your trust of our service.

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