ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 5-25 FIGURE 5-27.  METERING VALVE AND ARM ASSEMBLY. (15)   Examine the Delivery Valve.  Refer to Figure 5-28. (a) Inspect the cuff of the delivery valve for excessive scratching or scoring. (b) Examine for a wear band around the center of the valve, which if excessive, is criteria for replacement of the valve. (c) Check the valve for correct retraction value 0.59 in. (15mm). (d) Replace the Delivery Valve if found defective. FIGURE 5-28.  DELIVERY VALVE.