DRIVE GP-PUMP 1W7935 - Caterpillar

start by:a) remove power packb) remove transmission, torque converter and retarder *1. Make a mark on the flywheel and the crankshaft at the same locations. The marks will be used to install the flywheel in the same position. 2. Remove eight of the bolts (1) that hold the flywheel. 3. Fasten tool (A) to the flywheel. Fasten a hoist to tool (A). Remove the one bolt from the flywheel. Remove flywheel (2). Weight of the flywheel is 60 lb. (27 kg).Install Flywheel
1. Install two 5/8"-18 NF guide pins in the crankshaft. 2. Fasten tool (A) and a hoist to the flywheel.3. Put flywheel (1) in position on the guide pins. Make sure the mark on the crankshaft is in alignment with the mark on the flywheel.4. Install the bolts that hold the flywheel to the crankshaft.end by:a) install transmission, torque converter and retarder *b) install power pack*See 637D SCRAPER POWER TRAIN for the procedure to remove and install the transmission, torque converter and retarder.