Mitsubishi EHST20C-VM2C Service Manual page 92

From the previous page.
DISASSEMBLY PROCEDURE
11. How to remove the pressure relief valve/manometer/air
vent (automatic)
<Pressure relief valve (3 bar)>
(3) R emove the field piping from the pressure relief valve (3
bar). (Photo 11-5)
(4) R emove the pressure relief valve (3 bar) with the flare
joint using 2 spanners: one to hold the flare joint and the
other to turn the flare nut. (Photo 11-5)
(5) R emove the pressure relief valve (3 bar) using 2
spanners: one to hold the flare joint and the other to turn
the pressure relief valve (3 bar). (Photo 11-6)
(6) E liminate loctite on the thread surfaces using remover.
(Photo 11-6)
• Before reinstallation, apply loctite over the thread
surface on the pressure relief valve.
• For more details about the loctite and the remover,
refer to Page 101.
<Air vent (automatic)>
(3) Remove the air vent (automatic) using 2 spanners: one
to hold the flare joint and the other to turn the flare nut.
(Photos 11-5)
(4) Remove the air vent with the flare joint. (Photo 11-5)
(5) Remove the flare joint from the air vent. (Photo 11-7)
<Pressure relief valve (10 bar) (Except for EH*T20*-MHCW
models)>
(3) R emove the field piping from the pressure relief valve
(10 bar). (Photo 11-8)
(4) R emove the pressure relief valve (10 bar) with the flare
joint using 2 spanners: one to hold the flare joint and the
other to turn the flare nut. (Photo 11-9)
(5) R emove the pressure relief valve (10 bar) using 2
spanners: one to hold the flare joint and the other to turn
the pressure relief valve (10 bar). (Photo 11-10)
(6) E liminate loctite on the thread surfaces using remover.
(Photo 11-10)
• Before reinstallation, apply loctite over the thread
surface on the pressure relief valve.
• For more details about the loctite and the remover,
refer to Page 101.
Photo 11-10
OCH570C
Pressure relief
valve (10 bar) Flare joint
Threads for application of loctite
PHOTOS
Photo 11-5
Air vent
(automatic)
Flare joint
Flare nut
Photo 11-6
Pressure relief
valve (3 bar)
Photo 11-7
Air vent
Photo 11-8 (Except for EH*T20*-MHCW models)
Pressure relief
Air vent valve (3 bar)
(automatic)
Photo 11-9
92
Pressure relief
valve (3 bar)
Flare joint
Flare nut
Flare joint
Threads for application of loctite
Flare joint
Pressure relief
valve (10 bar)
Pressure relief
valve (10 bar)
Flare joint
Flare nut