3-9. CRANKSHAFT MAIN BEARINGS REPLACEMENT (CONT)
Install main bearing halves (5 and 6)
in bearing positions (2 through 6) for
main bearing clearance checks.
If main bearing halves (5 and 6) are
coated with oil, remove oil with a
clean wiping rag.
· Drycleaning Solvent (P-D-680) is
TOXIC and flammable. Wear
protective goggles and gloves; use
only in a well-ventilated area;
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), type II is 138°F (59°C),
and type III is 200°F (93.3°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.
To help prevent damage to the cylinder block during main bearing bore cleaning,
compressed air shall not exceed 15 psi (103.43 kPa). Use compressed air only with
effective chip guarding and personal protective equipment.
Clean main bearing surfaces in the cylinder block and bearing caps (3) with cleaning solvent
P-D-680. Dry surfaces thoroughly with low pressure compressed air (15 psig [103.43 kPa]