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HYDRAULIC
DESCRIPTION AND OPERATION
1. GENERAL
The brake hydraulic system includes a hydraulic fluid reservoir located in the power plant compartment and secured to the firewall.
The landing gear hydraulic system includes a hydraulic fluid reservoir integrated into the electrohydraulic generator.
The recommended hydraulic fluid is of the mineral type (TB 02-001).
This section deals with the following servicing operations :
- brake hydraulic system filling - refer to 12-13-01,
- brake hydraulic system drainage - refer to 12-13-02,
- landing gear hydraulic system filling - refer to 12-13-03,
- landing gear hydraulic system drainage - refer to 12-13-04.
ABM
Validity : S / N 1 - 9999 1 2-1 3-00Page 1
(CA) JUN 02
 
PAGE INTENTIONALLY LEFT BLANK
ABAA
Validity : S / N 1 - 9999 1 2 1 3-00 Page 2
(CA) JUN 02
 
BRAKE HYDRAULIC SYSTEM FILLING AND BLEEDING
SERVICING
1. BRAKE HYDRAULIC SYSTEM FILLING
A. Tools and consumable materials
- Hydraulic fluid (TB 02-001)
B. Procedure
NOTE : After brake system drainage, fill with new hydraulic fluid (TB 02-001).
1) Remove engine cowling 121 - refer to 71-10-01.
2) Remove the hydraulic fluid reservoir cover and inspect the seal for correct condition. Replace the seal if necessary.
3) Fill the system with hydraulic fluid (TB 02-001) and pump on the brakes. Perform this procedure until the level in the reservoir is reached.
4) Bleed the hydraulic system - refer to Paragraph 2.
5) Install the hydraulic fluid reservoir cover.
6) Make sure all the tools and materials are removed and the work area is clean and free from debris.
7) Install engine cowling 121 - refer to 71-10-01.
8) Perform a braking test.
NOTE : Do not apply the parking brake when linings are warm as this may lead to blocking.
2. BRAKE HYDRAULIC SYSTEM BLEEDING (Figures 301 and 302)
A. Tools and consumable materials
- Hydraulic fluid (TB 02-001)
- Drip pans
- 1 filling pump ERAM OU4920
- Blanking caps and plugs
- Union tubes
- Bleeding hoses (transparent vinyl)
- 1 syringe
B. Brake system bleeding procedure with a hand pump (Figure 301)
NOTE 1 : This procedure must be carried out by at least two persons.
NOTE 2 : For aircraft equipped with dual-control disk brakes, start the brake system bleeding with the R.H. front seat control, then continue with the pilot seat control according to the procedure below.
1) Check clearances of L.H. and R.H. rudder pedals. Adjust, if necessary (use the threaded part of the master cylinders).
NOTE : Adjust the final clearance at the end of the operation.
ABAA
Validity : S / N 1 - 9999 12-13-01Page 301
　
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本文鏈接地址：TB20 MAINTENANCE MANUAL 12 SERVICING TB20飛機(jī)維護(hù)手冊(cè) 12 保養(yǎng)(25)