TM 9-2320-209-34-2-3 FRAME 2 1. Check that rubber seal (1) is not torn or damaged. If damaged, get a new part. 2. Check that humidity indicator (2), safety relief valve (3), and pneumatic tank valve (4) are not damaged. If damaged, get a new part. 3. Check that all threaded parts are not stripped or crossthreaded. If damaged, get a new part. END OF TASK 21-209