SPIDER 1366545 - Caterpillar

Remove Accessory Drive Gears
start by: a) remove accessory drive housing 1. Remove bolts and locks from water pump drive gear (2). Remove gear from shaft.2. Remove oil pump drive gear (4) from its shaft.3. Remove the main idler gear (1) and its shaft. Turn the crankshaft to get bolts that hold shaft to cylinder block and plate (3).4. Remove bearings from gears (1), (2), and (4).5. On D379 only, install tooling (A) on the thrower. Put heat on the outer diameter of thrower with an open flame at a maximum temperature of 400°F (205°C). Remove the thrower immediately with tooling (A).6. Remove the balancer gear (6).7. Remove the bearing from balancer gear. 8. Remove oil tube (5) from plate. If plate is to be removed, remove oil pump and fresh water pump. Remove plate (3) from cylinder block. Check the mark on plate for correct installation. The front of plate for SAE standard rotation engine (counterclockwise as viewed from flywheel end) is marked "FRONT STD. ROT." The front of plate for SAE opposite rotation engine (clockwise as viewed from flywheel end) is marked "FRONT REV. ROT."Install Accessory Drive Gears
1. Install the plate (3) on cylinder block. Tighten five 1/2" bolts to 90 5 lb.ft. (120 7 N m). Be sure the plate is installed on correct side as indicated in removal.2. Install the oil tube (1). Install small gaskets under nuts that hold right end of tube. Put 7M7260 Liquid Gasket Material on sealing surfaces of idler gear shaft oil tube (1), and shaft for main idler gear (2). 3. On D379 engine only, install bearing in balancer gear with tooling (A). Install the balancer gear and shaft. Tighten bolts to 40 4 lb. ft. (55 5 N m).4. Install bearings in the gears for oil pump and main idler gear. The gear train of accessory drive are the same on the 8, 12, and 16 cylinder engines, except for balancer gear used on 8 cylinder engine. On SAE standard rotation (counterclockwise) engines, the balancer gear timing mark "B" must be in alignment with the tooth on crankshaft gear with punch marks (four, five or six punch marks). The balancer gear timing mark "B" must be in alignment with the "B" mark on the main idler gear.
SAE Standard Rotation 8 Cylinder Engine5. Install main idler gear and shaft. Install engine oil pump and fresh water pump. Install gears for oil pump and water pump.
SAE OPPOSITE ROTATION 8 CYLINDER ENGINE On SAE opposite rotation (clockwise) engine, the balancer gear timing mark "R" must be in alignment with the "R" on the small idler gear. The other "R" on the small idler gear must be in alignment between two teeth on crankshaft gear with two punch marks. On 12 and 16 cylinder engines, no timing of accessory drive gears is necessary. 6. On D379, heat the thrower (4) in oil to a maximum temperature of 300°F (149°C). Install the thrower (4) on crankshaft. Use tooling (B)