Mitsubishi 6M60-TL Service Manual page 330

Inspection after installation
• Place the soft layer side of the filter on the desiccant, and place
the filter plate on the case, then tap the desiccant down following
the manners.
• Before tapping the case against the work surface, lay two or
three layers of shop towel on the work surface to protect the
bottom of the case from scratches.
• Holding down the filter plate with both hands, lift the case to a
height of about 100 mm and tap it gently against the work sur-
face.
• Tap the case about 30 more times. Make sure the filter plate
drops by 4 to 6 mm from its original position.
WARNING
• Unless the tapping procedure is performed, particles of
desiccant may escape and create blockages in brake lines,
thus preventing normal brake operation.
Inspection: Air leakage
• Completely plug the delivery side of the air dryer, then apply air
pressure of 49 kPa {0.5 kgf/cm
supply side and check that no air leaks from any joint.
Leakage from the valve assembly must not exceed 20 cm
minute.
• Increase the pressure applied to the supply side to 932 kPa {9.5
2
kgf/cm } to cause purging (regeneration). Check that no air
leaks from the check valve and from the air pressure governor
(with the plug removed).
• If there is air leakage from the air pressure governor or the
check valves, charging (pressure filling) and purging (regenera-
tion) will be performed continuously. Therefore, carry out the in-
spection of the air pressure governor and check valve.
2
} or 780 kPa {8 kgf/cm
61
2
} to the
3
per
61-25