High temperature of mobile air compressor, Komatsu

Wednesday - 02/01/2019 03:51

Mobile air compressors is movable, suitable and widely used in industries such as construction, mines, bridges ... Due to harsh working conditions in the dirty environment. In order to ensure the machine work stably, a very important issue is regular and periodic maintenance. Currently, Airman and Komatsu (Japan), Keaser (Germany), Sullair (USA), Bolaite (Atlas copco firm), Loyalair (Taiwan), Khaison (China), Elgi (India) are the most popular mobile air compressor  in Vietnam

sửa lỗi nhiệt độ cao may nen khi di động komatsu, airman
Airman PDS655 air compressor maintenance


Mobile air compressor uses Diesel  and electric engine. In VietNam air compresssor using diesel engine is more popular. When using diesel, we're often  trouble with some errors such as: High temperature, weak output air flow, oil loss, red tubo, black discharge smoke ... .. In this article we shall provide you a number of reasons and ways to deal with failure of high temperature  in mobile air compressors:  Komatsu,Airman ...

Mobile air compressor using Diesel engine such as Komatsu, Airman PDS 750S, Airman PDS 655S, Airman PDS 450S, Airman PDS 499S, Airman PDS 390S ... .. high temperature failure consists of 2 part: heat generator from diesel and compressed air.




Overheated mortor

Cooling water  is dirty

Clean, rinse by specalized chemical

Cooling water lack

Add cooling water

Cooling water tank is clogged

Check and  clear the tank                           

Cooling fan is weak or broken

Repair or replace 

Lubricant is too dirty of lack

Add Repalace 

Leaked air discharge gasket(air is discharged directly to engine) 

Repace gasket

NOTE : Using cooling water, you had better use specialized water or treated water to avoid remains cutting cooling effect down.


High temperature of mobile air compressor

-Oil is too dirty that reduce heat dissipation capability

- Oil lack

-The replaced oil is not correct

-Replace oil( specialized oil)

Add oil( When the machine's operating , oil level is between 2 bars of oil level gauge)

Cooling fan is broken or weak

Repair or replace 

Oil filter is clogged 

Replace oil filter

Cooling system is clogged, dirty or returning oil pipe is clogged

Clean cooling system 

Mchanical contact:

+worn or broken bearing

+ Not concentric

+ Screw surface, mirror surface are  deformed

Replace bearing and recalibrate

Check the crew and miror surface

Thermal sensor is broken

Replace sensor.

Oil throttle valve is broken 

Repair or replace it

Ambient temperature is too high

Improve ventilation system

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