TM 5-3805-281-24-2
Crankshaft, Main Bearings, and Flywheel
REMOVE MAIN BEARING CAPS
IMPORTANT: Before removing main bearing caps (A),
check for proper torque on all main
bearings. Also, check each bearing cap
to make sure they are numbered for
reassembly on the same numbered
main bearing bosses. Keep matched
main bearings with their respective
main bearing cap for comparison with
crankshaft journal (surface wear) from
which removed.
Checking Torques Before Removing Main Bearing Caps
NOTE: When removing main bearings and caps, leave
No. 1 and 7 main bearing caps installed until all of
the connecting rod caps have been removed.
1. Remove main bearing cap screws.
2. Install JDG1069 Puller (B) so that tips (C) of blind hole
puller legs are below bearing cap half.
3. Tighten hex of actuator pin securely while holding
collet portion of puller leg with second wrench.
4. Tighten both cap screws (D) on cross block finger tight.
Installing Main Bearing Cap Puller
Tightening Main Bearing Cap Puller
Continued on next page
RG,RG34710,1168
1923OCT971/2
