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The labels containing information on the hatch's usage.

The cabin repress label, on the left, reads

CABIN REPRESS
1. SIDE HATCH DUMP vlv - CLOSE
2. REPRESS O2 vlv - OPEN (10 sec) Then CLOSE
3. CABIN PRESS Approx. 1.0 psia
4. CABIN PRESS ind - Monitor for GROSS LEAKAGE (30 sec)
5. REPRESS O2 vlv OPEN
6. CONTROL SURGE TANK PRESS > 150 psia
7. REPRESS PKG VLV - OFF
8. CABIN PRESS ind - 3.0 psia
9. REPRESS O2 vlv - CLOSE
10. DUMP OPS Into CABIN (If Avail)
11. CABIN REPRESS vlv - OPEN (CW)
12. Maintain surge tank press > 150 psia

The cabin depress label, on the right, reads

CABIN DEPRESS
1. CABIN FAN (2) - OFF
2. REPRESS PKG O2 vlv - FILL
3. REPRESS O2 vlv - CLOSE (verf)
4. CAB PRESS REL vlv (2) - NORMAL
5. SIDE HATCH DUMP vlv - OPEN (O2) FLOW HI WARNING LT May Come On Prior To CABIN PRESS REG LOCK UP)[sic]
6. At 3.25 psia, SIDE HATCH DUMP vlv - CLOSE
7. O2 FLOW ind - LESS THEN[sic] 0.5 LB/HR
8. CABIN PRESS 3.25 psia
9. SUIT CKT PRESS STABLE 3.5-4.0
10. SIDE HATCH DUMP vlv - OPEN
11. CABIN PRESS ind - 0