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AIR CONDITIONING (A/C) SYSTEM SERVICE - Continued
Figure 3. Charging Hook-up.

Field Maintenance Manual For Military 621G Scraper -4 Page Navigation
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TM 5-3805-296-23-4
0248
CHARGING CONTINUED
1. Install blue low-side hose (Figure 3, Item 5) on suction (low) side of A/C compressor (Figure 3, Item 3).
2. Install red high-side hose (Figure 3, Item 4) on discharge (high) side of A/C compressor (Figure 3, Item 3).
3. Follow recovery station OEM instructions and charge A/C system with R-134a refrigerant. Refrigerant capacity
is 3.3 lb (1.5 kg).
4. Once charging is complete, disconnect blue low-side hose (Figure 3, Item 5) from suction (low) side (Figure 3,
Item 1) of A/C compressor (Figure 3, Item 3) and red high-side hose (Figure 3, Item 4) from discharge (high)
side (Figure 3, Item 2) of A/C compressor (Figure 3, Item 3).
5. Operate A/C system to verify correct operation (TM 5-3805-296-10).
0248-8


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