Inspection And Adjustment Of Air Dryer's Air Pressure Governor - Mitsubishi 6M60-TL Service Manual

2. Inspection and Adjustment of Air Dryer's Air Pressure Governor

Service standards
Location
– Threshold pressure
Tightening torque (Unit: N·m {kgf·m})
Mark
– Plug
– Cap nut (seat and plate mounting)
– Nut (for retention of adjusting screw)
Lubricant and/or sealant
Mark
– Plug thread
Maintenance item
Upper threshold
pressure
Lower threshold
pressure
Parts to be tightened
Points of application
[Inspection]
(1) Air leak
• Install the air pressure gauge A between the air dryer and air
• Remove the plug from the air dryer at the location shown in the
• Start the engine to activate the air compressor such that the air
• If the pressure indicated by either of the pressure gauges A, B
Standard value
+29
890 kPa
–20
+0.3
{9.1 kgf/cm
–0.2
760 ± 15 kPa
{7.8 ± 0.2 kgf/cm
Tightening torque
14.7 to 24.5 {1.5 to 2.5}
4.9 to 5.9 {0.5 to 0.6}
6.9 to 7.8 {0.7 to 0.8}
Specified lubricant and/or sealant
ThreeBond 1110B
tank (wet tank side).
drawing. Connect air pressure gauge B at that point.
pressure in the air tank gradually increases. Check that the pres-
sures indicated by the pressure gauges A, B do not decrease
when air is expelled from the exhaust cover.
decreases, air is leaking from the check valve and air pressure
governor in the air dryer, causing continuous charging and purg-
ing. Carry out disassembly and inspection.
Limit
–
2
}
–
2
}
61
Remedy
Adjust
Replace
Remarks
–
–
–
Quantity
As required
61-11