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WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE ENGINE, EXHAUST PIPE AND MANIFOLDS ARE COLD. IF NOT, TAKE NECESSARY PRECAUTIONS TO AVOID SEVERE BURNS.
3) Remove the engine cowlings - refer to 71-10-01.
C. Check of belt tension
1) Position a spring scale on belt (10), between idler pulley (11) and compressor (5).
2) Pull upwards to obtain 3 to 4.8 lbf (13.3 to 21.4 N).
3) Maintain tension and measure deflection which must be equal to 0.12 in (3 mm).
4) If necessary, repeat the adjustment operation - refer to Paragraph D.
D. Adjustment of belt tension
1) Unlock and loosen the nut of idler pulley (11).
2) Moderately tension belt (10) by pivoting idler pulley (11) ; tighten nut.
3) Fully rotate propeller twice.
4) Check the tension of belt (10) - refer to Paragraph C.
5) If necessary, repeat the adjustment operation.
6) When the value is obtained, fully rotate the propeller twice and re-check the belt tension.
7) Torque the nut of idler pulley (11) - refer to 20-00-01.
8) Lockwire the nut of idler pulley (11).
NOTE : If belt (10) has been replaced, tension must be re-checked after one operation hour.
7Aty : KEITH Validity  203
(BA) SEP 04
 
E. Final steps
1) Make sure all the tools and materials are removed and the work area is clean and free from debris.
2) Install the engine cowlings - refer to 71-10-01.
3) Remove the warning sign prohibiting main switch-breaker operation.
4) Perform an operational test of the vapor cycle cooling system - refer to 21-55-00, page 501.
ty : KEITH Validity 21-55-01Page 204
(BA) SEP 04
 
1 - Bolt
2 - Shim washer
3 - Nut
4 - Cotter pin
5 - Compressor
6 - Bolt
7 - Shim washer
8 - Nut
9 - Cotter pin
10 - Belt
11 - Idler pulley
14200001AAAVWZ4001
L40 compressor - Removal / Installation
Figure 201

Ity : KEITH Validity 21-55-01Page 205
(BA) SEP 04
 
17
16    1 - Bolt
2 - Shim washer
3 - Nut
4 - Cotter pin
5 - Compressor
6 - Bolt
7 - Shim washer
8 - Nut
9 - Cotter pin
10 - Belt
11 - Idler pulley
12 - Washer
13 - Nut
14 - LP hose
15 - Tie-wrap
16 - Screw
17 - Shouldered bushing
  AV - FWD  
   
 
B61 CONDENSER FAN
MAINTENANCE PRACTICES
1. SERVICING - B61 CONDENSER FAN (Figure 201)
A. Tools and consumable materials
- AMP extraction tool P / N 458994-1
- Tie-wraps
- Cleaning agent (TB 11-001) or (TB 11-003)
- Cleaning agent (TB 11-915) or equivalent to standard MIL-S-18718
- Extractor
- Protection grid
　
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