S 013-002
(2)
Open the access door for the oil tank on the right side of the applicable engine (if the right cowl panel is closed).
S 213-005
(3)
Do a check of the oil quantity through the sight gage (Fig. 301).
NOTE: The sight gage for the oil tank shows a bright view when the
____ oil level falls below the gage. It shows a black view when the oil level is higher than the gage. The indication of a black view shows that a sufficient quantity of oil is in the tank for airplane dispatch. A sufficient quantity is more than 2.5 U.S. gallons (9.5 liters), or more than 60% full, as shown on the pilots' center instrument panel. The indication of a bright view shows that there is not a sufficient quantity of oil in the tank for airplane dispatch. It is also an indication that you must fill the oil tank. The sight gage does not give an indication that the oil tank is full or empty.
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A
737-300/400/500
MAINTENANCE MANUAL
SEE A
VENT TUBE TUBE ANTI-SIPHON
TUBE SCAVENGE LUBE
A
LUBE
SUPPLY
TUBE
OIL
QUANTITY
TRANSMITTER
FILLER
CAP
SCUPPER
SIGHT GLASS
OIL TANK SCUPPER DRAIN
FWD TUBE
A A
Oil Sight Glass Level Indication Figure 301 (Sheet 1)
B75149
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SUFFICIENT OIL LEVEL
A-A
S-M56-MM-1019-(1)-02-B
Oil Sight Glass Level Indication
Figure 301 (Sheet 2)
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A
737-300/400/500MAINTENANCE MANUAL
S 033-006
WARNING:_______ DO NOT REMOVE THE FILLER CAP FOR THE OIL TANK FOR FIVE MINUTES
AFTER AN ENGINE SHUTDOWN. IF THE CHECK VALVE IS DEFECTIVE, HOT
OIL CAN COME OUT FROM THE OIL TANK AND CAUSE INJURY TO PERSONS.
THE OIL IN THE TANK IS HOT AND PRESSURIZED DURING ENGINE
OPERATION.
YOU MUST FULLY CLEAN YOUR SKIN IF YOU TOUCH THE OIL. OIL
SOAKED CLOTHES MUST BE REMOVED IMMEDIATELY. IF THE OIL TOUCHES
YOUR SKIN FOR A LONG TIME, IT COULD CAUSE DERMATITIS.
CAUTION:_______ IMMEDIATELY CLEAN THE PAINTED SURFACES ON WHICH OIL FALLS. THE
OIL WILL PUT STAINS ON CLOTHES AND CAN MAKE PAINT SOFT.
(4) Remove the filler cap to the oil tank (Fig. 302).
(a)
Use a clean, lint-free cloth to clean the oil tank scupper.
(b)
Lift the handle of the filler cap for the oil tank to the vertical (open) position.
(c)
Push the filler cap in and turn it counterclockwise to get clearance between the locking pins of the filler cap and the slots in the fill port.
(d)
Pull the filler cap from the fill port.
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A 737-300/400/500MAINTENANCE MANUAL
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