A. Check oil level and master Magnetic Chip Detector (MCD) visual indicator. NOTE : In order to reduce burden for nuisance EMCD pop out indication,
____ the inspection of the Electrical Master Chip Detector can be defeered to the next convenient maintenance opportunity where trained personnel can performed the inspection without interfering with revenue service operation.
 (1)
 Check the visual indicator of the MCD. If the pop-out is extended (Ref. TASK 79-00-00-281-002).

 (2)
 Check oil level on the sight gage, if oil level is below full mark add oil as follows:

 Removal of the Oil Tank Filler Cap
 Figure 301/TASK 12-13-79-991-300

R 1EFF : 001-049, 051-061, 101-105, 151-151, 1 12-13-79Page 304 1201-203, 1May 01/05 1 1 1CES 1

 INTENTIONALLY BLANK

R 1 1
12-13-79Page 305
1 1 Feb 01/02 1 1 1CES 1

 Removal of the Oil Tank Filler Cap
 Figure 301A/TASK 12-13-79-991-300-A12 (SHEET 1)

R 1EFF : 062-099, 106-149, 152-199, 204-299, 1 12-13-79Page 306 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1

 Removal of the Oil Tank Filler Cap
 Figure 301A/TASK 12-13-79-991-300-A22 (SHEET 2)

R 1EFF : 062-099, 106-149, 152-199, 204-299, 1 12-13-79Page 307 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1

 Oil Tank Sight Gage Figure 302/TASK 12-13-79-991-301
 1EFF : 1 1R 1CES  ALL  1 11 1 12-13-79 Page 308 Feb 01/02

R R  Measuring the Viscosity of the Oil Figure 303/TASK 12-13-79-991-305
 1EFF : 1 1 1CES  ALL  1 111 12-13-79 Page 309 Nov 01/03

 Subtask 12-13-79-100-051

 B. Clean the oil tank scupper: CAUTION : MAKE SURE THAT THE OIL TANK SCUPPER IS CLEAN TO PREVENT
_______ CONTAMINATION OF THE TANK DURING THE SERVICING OPERATIONS.
 (1) Clean the oil tank scupper with a lint-free cloth before you remove the oil tank filler cap.
 **ON A/C 001-049, 051-061, 101-105, 151-151, 201-203,
 Subtask 12-13-79-010-066
 C. Raise oil tank filler cap handle to vertical (unlocked) position. (Ref. Fig. 301/TASK 12-13-79-991-300)
 WARNING : AFTER ENGINE SHUTDOWN, LET THE OIL TANK PRESSURE BLEED OFF FOR
_______ A MINIMUM OF 5 MINUTES BEFORE YOU REMOVE THE TANK FILLER CAP. IF YOU DO NOT, PRESSURIZED HOT OIL CAN FLOW OUT OF THE TANK AND CAUSE DANGEROUS BURNS.
 NOTE : This procedure is for the Old Oil Tank Filler Cap only.
____
 (1) Firmly grip oil tank filler cap handle, push down and as the same time turn counterclockwise to disengage locking device and remove cap.
R **ON A/C 062-099, 106-149, 152-199, 204-299, 301-399, 401-499,
 Subtask 12-13-79-010-066-A
 C. Raise oil tank filler cap handle to vertical (unlocked) position. (Ref. Fig. 301A/TASK 12-13-79-991-300-A)
 WARNING : AFTER ENGINE SHUTDOWN, LET THE OIL TANK PRESSURE BLEED OFF FOR
_______ A MINIMUM OF 5 MINUTES BEFORE YOU REMOVE THE TANK FILLER CAP. IF YOU DO NOT, PRESSURIZED HOT OIL CAN FLOW OUT OF THE TANK AND CAUSE DANGEROUS BURNS.
 CAUTION : BE CAREFUL TO REMOVE THE OIL-TANK FILLER-CAP, DO NOT APPLY MORE
_______ FORCE THAN IS NECESSARY TO ITS HANDLE. TOO MUCH FORCE CAN CAUSE DAMAGE TO OCCUR TO ITS LOCKING DEVICE.

 CAUTION : DO NOT TRY TO PULL THE HANDLE OF THE OIL-TANK FILLER-CAP OUT OF
_______
 ITS STOP LIMITS. NOTE : This procedure is for the New Oil Tank Filler Cap only.
____
 (1) Turn the handle of the filler cap counterclockwise 45. against its stop to disengage the locking device and remove the cap.
 NOTE : If it is difficult to open the filler cap, you must stay for 5
____ more minutes at least to do step (2) again.
 **ON A/C ALL
 Subtask 12-13-79-612-070
 D. Added oil in the oil tank:
 (Ref. Fig. 302/TASK 12-13-79-991-301)

 CAUTION : OPENING IN CONTAINER FROM WHICH OIL IS POURED MUST BE FREE OF
_______
 CONTAMINATION.

 CAUTION : BEFORE YOU ADD OIL IN THE OIL TANK DURING ITS SERVICING, MAKE
_______ SURE THE OIL IN TANK DOES NOT CONTAIN FUEL. IF IT SMELLS OF FUEL, REPLACE THE MAIN OIL/FUEL HEAT EXCHANGER AND SERVO FUEL HEATER THEN FLUSH THE ENGINE OIL SYSTEM.
 CAUTION : IF YOU THINK THERE ARE FUEL FUMES WHEN YOU REMOVE THE OIL
_______ FILLER CAP, DO A CHECK FOR FUEL IN THE OIL. IF THERE IS FUEL IN THE OIL TANK, REPLACE THE MAIN OIL/FUEL HEAT EXCHANGER AND THE SERVO FUEL HEATER THEN FLUSH THE ENGINE OIL SYSTEM.
R (1) Do a check for fuel in the oil, use VIS PROBE ON SITE TEST KIT
R  (23699-525SM25) (measuring the viscosity of the oil) to examine the oil. (Ref. Fig. 303/TASK 12-13-79-991-305)
 (a) If the test fails then fuel is found: 1 Replace the main oil/fuel heat exchanger (Ref. TASK 79-21-20-
　
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