Q155 Service Manual
4-4
n
Compressor Assembly Installation
To install the rebuilt compressor assembly:
i.
Perform the compressor removal procedure in reverse order.
ii.
Apply soapy water around the compressor tubing connections,
and check for leaking.
Figure 4-7 The suction and feed tubes of compressor
Figure 4-8 The power lead of compressor
4.4.3.
Compressor Relief Valve Test and Replacement
The procedure to test the compressor safety relief valve is as following:
i.
Set the ON/OFF switch to the OFF position, and unplug the power cord.
ii.
Remove the cabinet.
iii.
Remove the cabinet and disconnect the intake solenoid coil terminals of
solenoid valves. (See Figure 3-8)
iv.
Plug in the unit, and set the ON/OFF power switch to the ON position.
After approximately 10 seconds, the audible alarm will begin to sound
and when the pressure reaches 2.5
±
0.2kgf/cm
2
, the safety relief valve on
the compressor will make an air release sound. This means the valve is
working correctly.
Feed tube
Suction tube
Power lead of
compressor
Lead of
capacitor
Crashproof Plate