Maintenance Criteria Of Screw Compressor - Hitachi RCUE40AG2 Service Manual

Maintenance

6.2. Maintenance criteria of Screw Compressor

6.2. Maintenance criteria of Screw Compressor

6.2. Maintenance criteria of Screw Compressor
Classifi cation Time and year
Daily check Every day
Every 6,000 hrs
Every one year
24,000 hrs
Periodically check
Every 5 years
40,000 hrs
Every 5 years
Remarks Take the shorter period
Item
1 High pressure switch
2 Refrigerant oil
3 Suction gas strainer, oil strainer.
4 Bearing
5 Rotor
6 thrust liner
7 Set of tooth lock washer (tighten the nuts)
8 Set of P.K.O ring
9 Set of Tefl on ring

NOTE:
: part change
−
This table is applied in case that operation condition is good and operation record is fully equipped.
−
Perform compressor check according to the compressor service manual and technical notice.
−
pag. 152
SMGB0003 rev.0 - 11/2006
Model
air-cooled
water-cooled
Year/month to change or check (min)
Time
1 month
Operation test of safety device and protection device
Check of lubricant oil and change it
Decomposition of compressor
: part change if abnormality is detected in the check
Performance items
Save of operation situation
−
(pressure, temperature, voltage, current value,
−
remarks etc.) remarks etc.)
Operation check of safety device, protection device
−
Overhaul check of compressor and parts check
−
Lubricant oil
−
According to purpose or conditions of use, work
−
items shall be added individually. items shall be added individually.
40.000 hr
3.000 hr
6.000 hr
(24.000 hr) (24.000 hr)
6 month 1 year 5 year
(3 year)
Remark
( ) is for air-cooled.
Change them at the same
time as bearing