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4) Connect the wiring and filter (7) as marked during removal.
5) Remove the blanking caps and plugs, connect hose (10) and tighten clamp (9).
6) Make sure all the tools and materials are removed and the work area is clean and free from debris.
7) Install the cowling under hull 218.
8) Remove the warning sign prohibiting main switch-breaker operation.
9) Test the emergency distribution system - refer to 37-12-00.
AAAA
Validity : OPTION 37-12-01Page 402
(BA) SEP 04
1 - Doubler
2 - Washer
3 - Bolt
4 - Electromechanical
vacuum pump
5 - Support
6 - Clamp
7 - Filter
8 - Union
9 - Clamp
10 - Hose
11 - Bolt
12 - Washer
13 - Bonding strap
14 - Union
15 - Vibration isolator
16 - Spacer
Electromechanical vacuum pump - Removal / Installation
Figure 401 - 14 Volts
1 - Doubler
2 - Washer
3 - Bolt
4 - Electromechanical
vacuum pump
5 - Support
6 - Clamp
7 - Filter
8 - Union
9 - Clamp
10 - Hose
11 - Bolt
12 - Washer
13 - Bonding strap
14 - Union
15 - Vibration isolator
16 - Spacer
AAAA
Validity : OPTION 37-1 2-01Page 404
(BA) SEP 04
INDICATING
DESCRIPTION AND OPERATION
1. GENERAL
The aircraft can be equipped with four types of vacuum system indicating :
- the pressure indicator (normal and emergency system),
- the "GYRO SUCT" warning light (normal system),
- the "AUX SUCT" indicator light (emergency system),
- the M59 elapsed time indicator (emergency system). The system also uses M6 advisory panel - refer to 31-50-01.
2. LOCATION
COMPONENT QTY AREA ACCESS DOOR REFERENCE
Pressure indicator 1 250 211L / 212L 37-20-00
"GYRO SUCT" warning light 1 250 / 37-20-00
"AUX SUCT" indicator light 1 250 / 37-20-00
M59 elapsed time indicator 1 200 211 L / 212L 37-20-00
3. DESCRIPTION (Figure 1)
A. Pressure indicator
The pressure indicator is calibrated in inches of mercury and indicates the suction available for the operation of the attitude gyro indicator and the directional gyro indicator. The required suction range is 4.4 to 5.2 in.Hg.
A suction reading outside this range may indicate a system malfunction or improper adjustment, in this case, the indicators should not be considered reliable.
B. "GYRO SUCT" warning light (normal system)
The normal system can be provided with an alarm, red warning light labeled "GYRO SUCT" on M6 advisory panel ; this warning light, indicating insufficient suction, illuminates between 3 and 3.5 in.Hg, via S67 or MT23 pressure switch (if emergency option is installed).
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本文链接地址：TB20 MAINTENANCE MANUAL 37 真空 TB20飞机维护手册(15)
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