Check oil level and replenish (Pressure Filling)

TASK 12-13-79-610-002-A-01
Check oil level and replenish (Pressure Filling)

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	CART - SERVICING, OIL
No specific	AR	HOSE - TRANSPARENT, FLEXIBLE

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2442)	engine oil

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437BL
FOR [1000EM2] (ENGINE-2)
447BL

D. Referenced Information

REFERENCE	DESIGNATION
TSM 79-00-00-810-833	The Electrical Master Chip Detector indication is popped out - Engine 1
TSM 79-00-00-810-834	The Electrical Master Chip Detector indication is popped out - Engine 2
Oil Tank Remote Filling System

3. Job Set-up
Subtask 12-13-79-941-069-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.

Subtask 12-13-79-010-067-A ** ON A/C NOT FOR ALL

B. Open the oil tank servicing access door:
(1) FOR [1000EM1] (ENGINE-1)
437BL
(2) FOR [1000EM2] (ENGINE-2)
447BL

4. Procedure
Subtask 12-13-79-210-067-A ** ON A/C NOT FOR ALL

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 deferred to the next convenient maintenance opportunity where trained personnel can performed the inspection without interfering with revenue service operation.

(1) Check the Electrical Master Chip Detector visual indication after the next flight. If the pop-out is extended TSM 79-00-00-810-833 or TSM 79-00-00-810-834.
(2) Do a check of the oil level on the sight gage.

NOTE: This procedure gives the instructions to replenish the engine oil.

You must add oil not less than five minutes and not more than 60 minutes after the engine shutdown, while the oil in the tank is still warm. This will prevent over-servicing of the engine.
If the oil in the tank is cool or cold, the oil density will increase (volume decreases) and the oil tank can be over-serviced.
If the oil tank is over-serviced, this will not cause damage to the engine. The extra oil will be blown overboard through the engine vent system.
The quantity of oil can cause incorrect calculations for the consumption rate.

(a) If the oil level is below the full mark, add oil as follows.

Subtask 12-13-79-612-071-A ** ON A/C NOT FOR ALL

B. Fill the tank:
(1) Remove blanking caps from couplings.

CAUTION: DURING FILLING, THE MAXIMUM OIL PUMP FLOW RATE MUST NOT EXCEED 66 US GAL/HR (250L/HR), OR OVER-SERVICING OF OIL SYSTEM MAY RESULT.

CAUTION: REMOVAL OF DRAIN LINE BEFORE FLOW OF OIL FROM OVERFLOW HOSE STOPS MAY RESULT IN AN OVER-SERVICED TANK.

(2) Attach hose coupling from CART - SERVICING, OIL to remote oil filling port. Attach HOSE - TRANSPARENT, FLEXIBLE to oil overflow port.

NOTE: Use of a plastic transparent hose in place of an opaque hose will allow detection of oil at overflow port location (oil tank "full") and give visual indication to stop filling sooner.

(a) Add engine oil (Material No.CP2442) through oil service system until oil is visible through plastic transparent hose at the oil overflow port location.
(3) When oil flow from overflow hose stops, disconnect oil service system and check for oil leakage from the coupling. Slightly wetted surface, insufficient to form a drop, is permitted.
(4) Reinstall blanking caps on couplings.

5. Close-up
Subtask 12-13-79-410-067-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the oil tank access door:
(a) FOR [1000EM1] (ENGINE-1)
437BL
(b) FOR [1000EM2] (ENGINE-2)
447BL

[Rev.10 from 2021] 2026.03.31 22:55:24 UTC