Piper COMANCHE PA-24-180 Service Manual page 68

FIGURE 2-1. OIL SUCTION SCREEN
FIGURE 2-19 OIL PRESSURE SCREEN
2-78. Oi Smen (Sucnon). The sucton screen located in the bottom of the ump to the
right of the air
induction inlet should be cleaned at each oil change to remove any accumulation
of sludge and to examine
for metal filings or chips. If meal particle are found in the screen, the engine
should be examined for
internal damage. The suction screen is removed from the sump by cutting the safety
wire and removing the
hex head plug. Clean and inspect the scren and gasket and replace chegasker
if over compressed or
damaged. To eliminate damage to the oil screen, place it inside the recess in the
hex head plug before
inserng the assembly into the bottom of the sump. Care must be exercised to enable
the screen to enter
the oil uction tube inside the sump. (Refer to Figure 2-18.) When cerain that the screen
is properly seated,
tighten the plug. If the plug seems tight, this will indicate chat the screen is not properly
seated, and must
be disassembled and the above procedure repeated. After installation, safety the
hex head plug with
MS20995-C41.
2-79. Oil Screen (Pressure). The pressure screen located in a housing on the accessory
case of the engine
between the magnetos, should be cleaned at each oil change to remove any accumulation
of sludge and to
examine for meal filings or chips. If metal particles are found in the screen, the engine
should be examined
for internal damage. The pressure screen is removed by disconnecting the temperature
indicator wire and
removing the four hex head bolts that secure the screen housing to the accessory case.
Clean and inspect the
screen. Reinstall by first acertaining that the screen fis flush with the base of the housing.
(Refer to Figure
2-19.) Install the screen and housing to the accessory case using a new gasket Torque attaching
bolts within
50 to 70 inch-pounds.
HANDLING AND SERVICING
REVISED: 4/3/78
1C20
PIPER COMANCHE SERVICE MANUAL