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TM 10-4210-235-13
Table 4-1. Unit Preventive Maintenance Checks and Services for Fire Suppression Equipment
Trailer Set
ITEM
ITEM TO BE
NOT FULLY MISSION
NO
INTERVAL
CHECKED OR
PROCEDURE
CAPABLE IF:
SERVICED
1
Weekly
Dry Chemical
Stir dry chemical to break up any
Dry chemical will not break up.
lumps.
2
Quarterly
Nipple/Couplers
Open coupling halves, visually
Preformed packing missing or
inspect preformed packing
damaged. Coupling half will not
open or close
3
Quarterly
Regulating Valves
Check regulating valves for any
Regulating valve is damaged or
physical damage or evidence of
leaking
leaking.
4-5
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