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8.3 Maintenance Standards (B) · · ·
In case of annual run hour less than 3,000 hours
8. PERIODIC MAINTENANCE [Maintenance Standards (B)]
The maintenance items marked with
○
must be carried out by users or, optionally, may be ordered to the dealer.
The maintenance items marked with
●
must be ordered to the dealer.
Inspection time
Daily
Maintenance part and item
Check Note
1 Year
2 Years 4 Years 8 Years
Oil level gauge
Discharge temp.
Refrigerant pressure
Relief valve
Dryer auto-drain trap
Lubricant
(genuine synthetic oil)
Mechanical seal
Belt, Pulley
Air intake filter element
Oil filter element
Lubricant
(genuine synthetic oil)
Oil level gauge
Oil separator element
Solenoid valve
Cooling fan
Motor
Electric panel, instruments, sensors
Pipe joints
Oil cooler, Aftercooler
Belt, Pulley
Dryer condenser
Dryer fan motor
Suction throttle valve
Modulator valve
Piston of minimum pressure valve and check valve
Oil replenish port O-ring
Mechanical seal
Check valve (1/4 inch)
Oil level gauge
Oil temperature control valve
Belt
Motor bearing
Thermistor
Dryer auto-drain trap
Compressor bearing
CPU printed curcuit board
Oil level check
Discharge temp. check
Pressure check
Performance check
Inspection/cleaning
Replenish/Analysis
Oil leak check
Inspection
Replacement
Replacement
Replacement
Cleaning
Replacement
Performance check
Crack check/cleaning
Insulation check
Inspection/cleaning
Looseness check
Cleaning
Inspection
Cleaning
Inspection
Replacement
Replacement
Replacement
Replacement
Replacement
Replacement
Replacement
Replacement
Replacement
Replacement
Inspection
Replacement
Replacement
Check/Clean/Replace
○
○
○
Oil level must be within red lines during operation.
Must be between 65°C and 100°C.
Must be between 0.41 and 0.73 MPa.
Check by hand
Check condensate drainage, clean it if required.
Visual check of wear, check abnormal noise.
During cleaning, also replace a seal washer.
Replace the housing and square ring as well.
1M ohm or more at DC500 V Mega
Terminal refastening, electric line cover check and cleaning
Tension check, wear check.
Replace the cap seal, valve plate, and O-ring. Clean.
Replace the diaphragm, and rubber sheet. Clean.
Locate it on the oil-scavenging pipe from the shaft seal.
Change may be postponed according to the state of the bearing.
18
8
16
48
47
18
55
50
49
19
53
48
55
52
1 Month
Reference
page No.
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（○）
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○
○
Replenish every 1,500 to 2,000 hours
Sampling analysis every 3,000 hours
Clean if the error code of an element clogging appears
on the digital monitor. Replace whenever the number
of times of cleaning has reached 6 times even within
one year interval.
Consumable
Parts
If it is dirty or shows a change in color, replace it.
If not so, clean it and continue to use it.
○
○
○
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(1) Relation between inspection time and run hours is based upon standards of 250h/month, 3,000h/year, 12,000h/4 years and
24,000h/8 years.
(2) This standard will not be applicable in the case when run hours exceeds the above standards, no use of the unit for long time,
continuous operation under low-load, or the unit is operated in the environment of high temp. and humidity, dusty environment,
or with corrosive factors. Be sure to follow maintenance standards (A) (6,000h/year base) to carry out maintenance.
IMPORTANT
*
*
* Replace these parts every 4 calendar years or when the A has loaded/unloaded total 1,000,000 times,
whichever comes earlier. For the total load/unload times, watch the digital monitor.
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