S 615-041-C00

 (2)
Add 0.5 U.S. gallons (1.9 liters) of oil to the dry oil tank.

 S 215-042-C00

 (3)  
Make sure the applicable oil quantity indicator reads zero (|1/2 dial division).

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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
FLIGHT COMPARTMENT
OIL QUANTITY INDICATORS
OIL OIL QUANTITY QUANTITY
PILOTS' CENTER INSTRUMENT PANEL
A

Analog Oil Quantity Indicating System
Figure 502

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B07150
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 825-045-C00
 (4)  If the indicator value is not in the tolerance, adjust the "zero" adjustment screw.
 (a)  Loosen the adjustment screw for the indicator clamp.
 NOTE: The clamp adjustment screw is the larger screw found
____
 to the right of the indicator.

 (b)  
Pull the indicator away from the P2 center instrument panel to get access to the potentiometer "zero" adjustment screw found on the back of the oil quantity indicator.

 (c)  
Turn the adjustment screw to move the indicator pointer to
 zero.

 (d)  
Install the indicator into the P2 center instrument panel and tighten the clamp adjustment screw.

 S 865-046-C00
 (5)  Push and hold the ENG OIL QTY TEST button on the P2 center instrument panel.
 (a)  The indicator must move down the scale.
 S 865-047-C00
 (6)  Release the ENG OIL QTY TEST button.
 (a)  The indicator must go back to zero.
 S 615-048-C00
 (7)  
Add 3.5 U.S. gallons (13.3 liters) of oil to the oil tank.

 S 215-049-C00

 (8)  
Make sure the indicator reads 3.5 U.S. gallons (|1/2 dial division).

 S 825-056-C00

 (9)  
If the indicator value is not in the tolerance, adjust the "full" adjustment screw.

 (a)  Loosen the adjustment screw for the indicator clamp.
 NOTE: The clamp adjustment screw is the larger screw found to
____
 the right of the indicator.

 (b)  
Pull the indicator away from the P2 center instrument panel to get access to the potentiometer "full" adjustment screw found on the back of the oil quantity indicator.

 (c)  
Turn the adjustment screw to move the indicator pointer to

 3.5 U.S. gallons.

 (d)  
Install the indicator into the P2 center instrument panel and tighten the clamp adjustment screw.

 S 865-057-C00
 (10) Push and hold the ENG OIL QTY TEST button on the P2 center instrument panel.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 215-058-C00
 (11) The indicator pointer must fall to or below zero and go back to
 3.5 gallons when you release the button.
 S 615-063-C00
 (12)
 Fill the oil tank to full (AMM 12-13-11/301).

 S 415-064-C00

 (13)
 Close the fan cowl panel (AMM 71-11-02/201).

 S 865-065-C00

 (14)
 Remove the electrical power (AMM 24-22-00/201).
　
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