Air Starter System; Air Strainer - Drain Water And Clean; Air Tank - Drain Water; Air Tank - Inspect Safety Valve Operation - Mitsubishi S6B Operation & Maintenance Manual

Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES

Air starter system

Air strainer - Drain water and Clean

1. Close the handle for starting of the air tank.
2. Remove the drain plug of air starter strainer and
drain water from the air strainer.
3. Remove the cap and remove the filter from the cap.
4. Clean the filter with diesel fuel, then blow com-
pressed air to dry.
5. Reassemble the air strainer as it is.
6. Open the starting air handles slowly.

Air tank - Drain water

There are 2 places for draining water in the air tank:
drain valve on the top of air tank, and drain handle
on the bottom of drain separator.
1. Open the drain valve slowly, and check that water
in the tank is drained from drain pipe.
2. After water is drained and the air is discharged in
the tank, tighten the drain valve firmly.
3. Loosen the drain handle on the bottom of drain
separator. Check that water in the drain separator
is discharged from the drain pipe.
4. Close the drain handle after draining water firmly.
Air tank - Inspect safety valve
operation
1. Open the inlet valve of air tank and air pressure
gauge valve.
2. Fill air with the air compressor.
3. Check to make sure the safety valve opens to re-
lieve pressure when the air pressure value in the
tank is over the standard.
Pressure in the air tank: 2.94 MPa {30 kgf/cm
[427 psi]
Safety valve operating pressure (open): 3.14 MPa
2
{32 kgf/cm } [455 psi]
Safety valve operating pressure (close): 2.84 MPa
2
{29 kgf/cm } [412 psi]
4. If defective in safety valve operation, contact a Mit-
subishi dealer.
8-20
Starting air
inlet
Filter
Spring
Packing
Fig. 8-33 Air strainer - Drain water and Clean
Drain valve
Drain
pipe
Fig. 8-34 Air tank - Drain water
2
}
Starting air
outlet
Cap
Plug
Drain
separator
Drain
handle