Technology

Maintenance process of air blower

19/08/2019

Basic steps of air blower repair and maintenane as below:

Hitachi air compressor maintenance

07/12/2018

Minh Phu Machinery and Technical Services Co., Ltd specializes in repair, maintenance and supply of parts for Hitachi air compressors with high quality, reliability and long-term warranty. Please call Minh Phu 0919232826 for more details. Belows are some pictures of repair and maintenance Hitachi air compressors.

Air compressor parts supply

24/12/2018

Supply air compressor parts and accessories : oil filters, separators, oil filtersair ends etc..

How to deal with some problem of desicant air dryer (heatless type)

30/07/2019

How to deal with some problem of desicant air dryer (heatless type)

New Hiscrew Oil Next-Hiatchi air compressor

24/12/2018

Hitachi compressor oil is produced by Hitachi - one of the Japanese industrial machine brand. Hitachi is a specialized compressor oil for Hitachi air compressor.

Micom time setting and troubleshooting of the GRH3 air compressor

Monday - 29/07/2019 05:47

Micom time setting GRH3 air compressor

When the compressor is released, the time is set on Micom, based on the standard time of the Republic of Korea. Since schedule operation starts in the pre-defined time, make sure to set the time accurately. A user does not have to re-set the time except a special case and if the time should be inevitably re-set, set the time according to the following steps.

Place the cursor on [PARAMETER] and press [ENT] button.
Place the cursor on SET CLOCK and press [ENT] button.
Place the cursor on an item to change by using [ ], [ ] buttons and press [ENT] button to change time, date and year.

Troubleshooting of the GRH3 air compressor

Protective Devices and LCD Message List

1. Protective Devices
The following protective devices are contained to protect the compressor against dangerous situation and the measures should be taken by referring the functions.

63A (pressure switch for internal pressure detection)

49M1 (Fan motor overload relay)

Internal pressure(P1) Connection

Operation It detects internal pressure and disables the operation in case of 2.0 and lower pressure.

Contact point(A/B)
On : 2.0 bar and higher
Off : 2.0 bar and lower

Operation
If excessive current is allowed, the compressor
stops due to fan motor overload.
Contact point
Normal: 97-98 off
Overload: 97-98 on

RC(A) knob
- Set the operating current
2.Time knob
- Set the operating time
3. O.L./Fault LED
- LED working according
to each different condition
4. Test/Reset
- Check the normal working
condition of button output
contacts

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.