AirMan PDS185S-6C1, Руководство по обслуживанию

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2. Maintenance
2-9
PC08057
Auto-relief valve
2.9 Check O-ring and Needle valve of Auto-relief valve and Vacuum
relief valve
●
Disassemble and clean the component, and check
O-ring
“
1
”
,
“
2
”
,
“
3
”
and needle valve
“
4
”
. Then,
replace O-ring
“
1
”
,
“
2
”
,
“
3
”
and rubber on the
needle valve
“
4
”
, if hardened.
2.10 Performance check of Pressure control valve
When reassembling, apply sufficient grease to O-ring Slot/O-ring and sliding surface.
Use CALTEX MULTIFAK EP1 grease or equivalent. Grease of poor quality will deteriorate the material.
<Procedure>
①
When closing stop valve and fully opening service
valve while the machine is running, make sure that
the discharge pressure gauge shows the figure
between 49-68psi (0.34-0.47MPa).
②
When the pressure is lower than 49psi (0.34MPa),
replace spring
“
3
”
with a new one.
③
When the indicator shows excessively higher
pressure, you will find that the piston does not move
smoothly due to foreign material and rust stuck
inside valve. In such a case, disassemble the
component for checking and cleaning.
2.11 Check Pressure Control Valve O-Ring and Piston
●
Disassemble and clean the component, and check O-ring
“
1
”
,
“
2
”
and the piston
“
4
”
shown in 2.9
then, replace it, if they are hardened.
●
After replacement, run the machine to check its function, air-leak or any disorder.
1
2
3
4
1
2
3
4
Vacuum relief valve
A070338
1
2
3
4
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