3145, 3150 & 3160 ELECTRIC SET ENGINES Caterpillar

1. Remove the gear using an 8B7548 Push Puller, 8B7551 Bearing Pulling Attachment, 8B7561 Step Plate, and the 8H684 Ratchet Box Wrench.

2. The 1P820 Hydraulic Puller Group can also be used to remove gear from crankshaft. Tools required are: 1P820 Hydraulic Puller Group, 8B7551 Bearing Pulling Attachment, 8B7549 Puller Legs (two), 8B7561 Step Plate, 3H465 Plates (four), 1B4207 Nuts (two), and the 9S5800 Pump Group.

REMOVING CRANKSHAFT GEAR

USING HYDRAULIC PULLER

Install Crankshaft Gear

1. Install the key in keyway of crankshaft. Remove all burrs from key and keyway inside of crankshaft gear.

2. Heat gear to 300° F (148° C) maximum.

3. Install gear on crankshaft with timing mark on gear facing front of crankshaft.