Remove oil baffle (20), three screws (21),
thrust bearing (22), and thrust collar (23)
from bearing housing (16).
Remove two outer retaining rings (24), two
rings (26) from bearing housing (16).
Check compressor housing for impeller contact. If damage is found replace housing. Damage shows
turbine shaft to be out of balance or locknut unscrewed.
Check blades on impeller and on turbine shaft. Also check turbine shaft. If damage is found on either,
turbine shaft and impeller must be replaced as an assembly.
Drycleaning solvent (P-D-680) is TOXIC and flammable. Wear protective goggles and gloves; use
only in well-ventilated arca; avoid contact with skin, eyes, and clothes, and do not breathe vapors.
Keep away from heat or flame. Never smoke when using solvent; the flashpoint for type I
drycleaning solvent is 100°F (38°C) and for type II is 140°F (60°C). Failure to do so may result in
injury or death to personnel.
If personnel become dizzy while using cleaning solvent, immediately get fresh air and medical help.
If solvent contacts skin or clothes, flush with cold water. If solvent contacts eyes, immediately flush
eyes with water and get immediate medical attention.
Clean all parts with stiff nylon brush and drycleaning solvent.
Remove carbon build up from compressor and turbine housing using medium emery cloth.
Polish bearing surfaces of turbine shaft with crocus cloth.
Compressed air used for cleaning purposes must not exceed 30 psi (207 kPa). Use only with effective
chip guarding and personal protective equipment (goggles/shield, gloves, etc).
Rinse all parts with drycleaning solvent. Dry with compressed air.
Check all parts for cracks, excessive wear, and other damage. Replace all parts failing inspection.