TM 10-4320-303-13 Table 2-7.  Operator Preventive Maintenance Checks and Services for TWDS.  (Continued) Location Item No. Interval Item to Check/Service Procedure Not Fully Mission Capable if: DISTRIBUTION POINT 17 Before 2 Inch Gate Valve Inspect for damage, leaks, 2 inch gate and turns freely.  If valve valve is is leaking, damaged, or not damaged.  Class operating properly, notify III leak.  Valve supervisor. does not rotate freely. 18 Before Elbow Valve Inspect for damage, leaks, Elbow valve is and improper operation. damaged or not Inspect for damaged or operating missing gasket.  If valve is properly.  Class damaged, not operating III leak. properly, or Class III leaks Damaged or are present, notify missing gasket. supervisor. 19 Before Nozzle Inspect for damage and leaks. Nozzle is Ensure triggers work damaged.  Class properly. III leak. Trigger is not properly operating. 20 Before Distribution Inspect for damage and leaks. Connection is Point Hose If hose is damaged or Class loose.  Hose is Assemblies III leaks are present, notify damaged.  Class supervisor. III leak. 2-20