TM 10-3930-669-20 Section III.  REMARKS Reference Code Remarks A In  the  "O"  category  repair  is  limited  to  splicing  of  wires,  taping  of  the  harness  or  wires,  and  the replacement of wire ends. B At the "F" level the entire wire harness is replaced. C High pressure hoses are non-repairable. D Repair of the M-13 decontamination unit is covered in TM 3-4230-214-12&P. E Ensure pivot arm is blocked in outward position. C-4