ROD AS 4395325 - Caterpillar

Introduction
Use the following procedure in order to find top dead center position for the No. 1 piston.Required Tools
Table 1
Required Tools
Part Number Part Description Qty
230-6283 Crankshaft Timing Pin 1
230-6284 Camshaft Timing Pin 1 Procedure
Illustration 1 g01141681
(1) Hole for camshaft pin
(2) Hole for crankshaft pin
Remove the valve mechanism cover, the glow plugs, and the cover for the front housing. Note: The crankshaft timing pin can be inserted with the crankshaft pulley still on the engine.
Rotate the crankshaft in the normal direction of the engine until the inlet valve of the No. 4 cylinder has just opened and the exhaust valve of the No. 4 cylinder has not completely closed.
Carefully rotate the crankshaft in the normal direction of the engine in order to align the hole in the crankshaft with the hole in the cylinder block and the timing case. Insert the 230-6283 Crankshaft Timing Pin fully into the hole in the crankshaft web.
Insert the 230-6284 Camshaft Timing Pin through the hole in the camshaft gear and into the body of the timing case. The engine is set at the top center position for No. 1 piston. Note: The camshaft gear can rotate a small amount when the pin is installed.
Remove the timing pins from the camshaft gear and the crankshaft web.