BIT-ROUTER 2209150 - Caterpillar

Installation Procedure
Illustration 1 g00591946
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
On the 3304B, turn the crankshaft so that the No. 1 piston is at the top of the compression stroke.
Turn both balancer shafts (1 ) until the flat side of the shaft is away from the oil pan plate. Install bolts (3) in the oil pan plate and into the balancer shafts.
Install idler gear (2) on the oil pump. Place the oil pump in position on the engine. Ensure that the oil pump gears are engaged with the gears of the balancer shaft and the crankshaft gear. Install the bolts, washers and locks that hold the oil pump in position.
Install the bolts that hold the elbow to the pump.
Remove the bolts from the balancer shafts.
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The engine oil pump idler gear can fall off of the pump when the pump is removed or installed. Injury may result. To help prevent injury, always hold the idler gear on the pump when the pump is removed or installed.
On the 3306B, install engine oil pump (4) onto the cylinder block. Ensure that the idler gear is engaged with the crankshaft gear and install the washers and four bolts (2) .
Install two bolts (3) that hold the scavenge line to engine oil pump (4) .
Install the lock washer and bolt (1) that holds the suction bell to the oil pan plate.End By: Install the engine oil pan. Refer to Disassembly and assembly, "Engine Oil Pan - Remove and Install".