MMD Equipment 185S-6C1 - Manual (Page 40)

5. Periodic Inspection/Maintenance
5-3
5.3 Periodic Inspection List
(Unit:Hour)
Maintenance Daily
Every
250
Every
300
Every
500
Every
1,000
Every
2,000
Every
3,000
Page
Check compressor oil level.
○ 4-6
Drain separator receiver tank.
○ 4-7
Check looseness in pipe connecting part, and wear
and tear of pipe.
○ 4-9
Check oil, water, fuel and air leak.
○ 4-13
Check performance of gauge and indication lamps.
○ 4-13
Performance check of safety valve.
○ 4-14
Change compressor oil. ※ 1○ ○ 5-7
Change compressor oil filter. ※ 1○ ○ 5-8
Clean strainer in the scavenging orifice.
○ 5-8
Clean and change air filter element. ○
(Clean)
○
(Change)
5-9
Clean outside of the oil cooler.
○ 5-11
Change diaphragm of speed regulator. ☆● 5-11
Change oil separator. ● 5-13
Change nylon tubes. ● 5-13
Change o-ring of unloader. ★● 5-14
Change spacer of unloader.
※ 2○ ★●
Change pressure regulator. ● 5-14
Check hoses. ★● 5-14
Check o-ring and needle valve of auto-relief valve. ● 5-15
Check o-ring and needle valve of vaccum relief
valve.
● 5-15
Performance check of pressure control valve
● 5-15
Check/Change pressure control valve of o-ring. ★● 5-16
Check/Change pressure control valve of piston. ● 5-16
Com
pres
so
r
Check of solenoid valve ※ 3 ●
Such items marked ○ shall be carried out by customers.
For the following items or clauses marked ●, contact us directly or our distributors because they re-
quire expert technical knowledge on them.
The following table shows the inspection and maintenance intervals under normal operation conditions.
In case the unit is operated under harsh environmental conditions and operation conditions, the inter-
vals should be shortened.
The items or parts marked ※1 show that they should be replaced primarily.
The items or parts marked ☆ should be replaced every two years even if they are not in disorder within
their periodical maintenance interval because their materials will change or become degraded as time
passes.
Also for the same reason, the parts marked ★ should be replaced every three years.
Regarding the item marked ※2、check the function of the unloader. In case the unloader malfunctions,
change O-ring or bushing of unloader. This is because either of both parts may be worn out.
The items or parts marked ※3、re-use is possible when normal.