AIR FILTER CLEANING AND SERVICING. (CONT)
Remove air filter (9) from bottom of both pulse generators by removing two screws (10) and two flat washers
(11). Air filter will drop down from equipment.
Tap edges of air filters to remove as much dirt as possible.
Fumes of TRICHLOROTRIFLUOROETHANE are poisonous.
ventilation whenever you use TRICHLOROTRIFLUOROETHANE. Do not use solvent
near heat or open flame. TRICHLOROTRIFLUOROETHANE will not burn, but heat
changes the gas into poisonous, irritating fumes. DO NOT breathe the fumes or
vapors. TRICHLOROTRI- FLUOROETHANE dissolves natural skin oils. DO NOT get
the solvent on your skin. Use gloves, sleeves, and an apron which the solvent cannot
penetrate. If the solvent is taken internally, consult a physician immediately.
Wash air filters in trichlorotrifluoroethane, using brush to remove dirt from wire mesh.
Allow filters to drain by supporting on suitable surface with airflow arrows on sides of filters pointing upward.
Reinstall air filters in appropriate locations with airflow arrows pointing into equipment.
4-37. CONTROL KNOB REPLACEMENT.
This procedure is typical for replacement of all control knobs on radar set. NSNs for replacement knobs can be found in
Loosen setscrew(s) (1) inside of knob (2).
Note position of indicating mark on knob (2). If any exists, and slide knob (2) off of shaft (3).