System should be thoroughly cleaned and then prepared by flushing with a non-corrosive mineral oil or kerosene prior to
long periods of storage (five days or longer).
This section provides sufficient information to locate and correct malfunctions in the UH-1B/D Helicopter Spray
System. Remedies requiring higher echelons of maintenance are covered in Section 5.5, Field Maintenance and Repair.
No Response To Start Spray Command
Loose connector or connection on the
No Response To Stop Spray Command*
Loose connector or connection on
Brake cable or cable connector loose
Faulty windmill drive on pump
Replace entire unit
* Stop pump immediately by using brake.