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 |  |  should return to within | 3 EIS|  |
 |  |  indication digits or equivalent|  |
 |  |  on analog gauges.|  |
 |  |  |  |
 |  |  NOTE:|____ The EIS 88 - 100 equals |
 |  |  |  "Refill to full" on analog|
 |  |  |  gauges. |
 |  |  |  |
 |  |  Test for excessive hysteresis in|  |
 |  |  System A transmitter:|  |
 |  |  |  |
 |  |  With airplane jacked, using EMDP,| |
 |  |  retract and extend gear three|  |
 |  |  times.|  System A fluid level |
 |  |  indications at extend and at|  |
 |  |  retract each time must fall|  |
 |  |  within | 3 EIS indication digits|  |
 |  |  or equivalent on analog gauges.|  |
 |  |  |  |
 |  |  NOTE:|____ The EIS 88 - 100 equals |
 |  |  |  "Refill to full" on |
 |  |  |  analog gauges. |
 |  |  |  |

 2......................…....................…..................................1

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 HYDRAULIC FLUID QUANTITY INDICATOR REMOVAL/INSTALLATION
_______________________________________________________
 1.  General
_______
 A.  This procedure contains two tasks. The first task is to remove the hydraulic fluid quantity indicator. The second task is to install the hydraulic fluid quantity indicator.
 B.  The hydraulic fluid quantity indicators are found on the lower part of the P3-1 panel. The indicators are installed into the panel from the front and are held in position with clamps. There is an indicator for hydraulic system A and system B.
 TASK 29-33-11-004-001
 2.  Hydraulic Fluid Quantity Indicator Removal
__________________________________________
 A.  Access
 (1)  Location Zone
 101/102 Control Cabin

 B.  Procedure
 S 864-002
 (1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
 (a)  
P6-2 Circuit Breaker Panel 1) For hydraulic system A indicator: a) SYS A HYD OIL QTY

 2)  For Hydraulic system B indicator: a) SYS B HYD OIL QTY

 (b)  
P42 Five Volt Lighting Panel
 1) 5V AC SEC XFMR

 

 S 024-013
 (2)  Loosen the adjustment screw for the indicator clamp.
 NOTE: The clamp adjustment screw is the larger screw found to the
____
 right of the indicator.

 S 024-004
 (3)  
Pull the indicator out from the instrument panel to get access to the electrical connector.

 (4)  
Disconnect the electrical connector.

 (5)  
Remove the hydraulic fluid quantity indicator.

 S 024-014
 S 024-006
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 29-33-11
 ALL  ú ú 01 Page 401 ú Nov 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 TASK 29-33-11-404-007
 3.  Hydraulic Fluid Quantity Indicator Installation
_______________________________________________
 A.  References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 29-09-00/201, Hydraulic Reservoir Pressurization System

 B.  Access
 (1)  Location Zone
 101/102 Control Cabin

 C.  Procedure
 S 424-009
 (1)  
Connect the electrical connector to the indicator.

 S 424-019

 (2)  
Install the hydraulic fluid quantity indicator into the instrument panel.
　
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