2.
Push each piston-connecting rod assembly toward the top of the cylinder.
Keep the bearings in order with their corresponding connecting rods (according to cylinder numbers) for proper reassembly.
Remove the connecting rod cap nuts and then remove the caps and the big end lower bearing. Mark for reassembly.
Push each piston-connecting rod assembly toward the top of the cylinder.
Use the special tools 09234 - 33001 and 09234 - 33002, disassemble and reassemble the piston and connecting rod.
The piston pin is a press fit in the rod little end, and the piston floats on the pin.
The tool consists of a support fixture with fork inserts, guides, adapters, an installer and a remover. The piston is supported in the support fixture while the pin is being installed or removed. Guides help position the pin as it is installed or removed, while the rod is supported by fork inserts.
To remove the pin from the piston, place the piston in the support fixture while the rod resting on the fork inserts. Pass the remover tool through thetop of the support fixture and use it to press out the pin.
To install a new pin, the proper fork inserts must be in place to support the rod.
Position the rod inside the piston. Insert the proper pin guide through on side of the piston and through the rod. Hand tap the pin guide so it is held by the piston. Insert the new pin into the piston from the other side and set the assembly into the support fixture with the pin guide facing down.
The pin guide should be centered on the connecting rod though the piston. If assembled correctly, the pin guide will sit exactly under the center of the hole in the tool's arch, and rest evenly on the fort inserts. If the wrong size pin guide is used, the piston and pin will not line up with the supportfixture.
Insert the installer tool through the hole in the arch of the support fixture and use an hydraulic press to force the piston pin through the rod little end. Continue pressing until the pin guide falls free and the installertool seats against the top of the arch.
Do not exceed 1250±500 kg (2756±1102 lb) of force when stopping the installing arbor sleeve against the arch.
