To #859 Other - Mitsubishi 6M60-TL Service Manual

#750 to #859 OTHER

54-14
#757 Inspection of dust indicator
• Perform the following checks, and if any fault is found, replace
the dust indicator.
• Make sure that there is no continuity between terminals 1 and
2 when air pressure is not applied to the dust indicator.
• Make sure that there is no continuity between terminals 1 and
2 when negative pressure of 6.23 ± 0.57 kPa {635 ± 58
mmH O} is applied to the dust indicator. (See Gr15.)
2
#758 Inspection of air dryer
(1) Inspection of thermostat
• Perform the following check. If any fault is found, replace the
thermostat.
• While varying the temperature around the thermostat, measure
the temperatures when the continuity is established and is lost
between terminals 1 and 2.
Lowering the tem-
perature
Standard
value
Raising the temper-
ature
(2) Inspection of heater
• Measure the resistance of heater as shown.
Standard value
• If the measured value is out of the standard value, replace the
heater.
#764 Inspection of glow plug
• Measure resistance value of glow plug as shown.
Standard value
(cold resistance of glow plug)
• If the measured value deviates from the standard value, replace
the glow plug. (See Gr11.)
Temperature when
continuity is estab-
4 ± 4°C
lished (ON temper-
ature)
Temperature when
20°C
continuity is lost
or lower
(OFF temperature)
8.2 Ω or less
Approx. 4 Ω