EDGE-CUTTING 9W1878 - Caterpillar

Agricultural Tractor: MT735 (S/N: AKN1-UP) MT855 (S/N: BCC1-UP) MT865 (S/N: BDS1-UP) MTC855 (S/N: 8181-UP) MTC865 (S/N: 8191-UP)Articulated Truck: 735 (S/N: AWR1-UP) 740 (S/N: AXM1-UP) D350E Series II (S/N: 2XW1-UP) D400E Series II (S/N: APF1-UP; 8PS1-UP)Landfill Compactor: 826G Series II (S/N: AYH1-UP) 836G (S/N: BRL1-UP; 7MZ1-UP)Soil Compactor: 825G Series II (S/N: AXB1-UP)Engine: 3406E (S/N: 5GF1-UP; 5EK1-UP; 1MM1-UP; 2WS1-UP; 4AS1-UP; 5DS1-UP; 6TS1-UP; 1LW1-UP) C-15 (S/N: MBN1-UP; 6NZ1-UP; 9NZ1-UP) C-16 (S/N: 7CZ1-UP) C-18 (S/N: MDP1-UP)Generator Set: 3406E (S/N: 9NN1-UP; 8AZ1-UP) 3456 (S/N: BGA1-UP; CCB1-UP; EPE1-UP; C1G1-UP; C3G1-UP; C4G1-UP; CAH1-UP; GHJ1-UP; C2T1-UP; CBX1-UP) C18 GEN SET (S/N: C6C1-UP; G4C1-UP; STD1-UP; STM1-UP)Industrial Engine: 3406E IND (S/N: 6BR1-UP) 3456 IND (S/N: 3LW1-UP) C-15 IND (S/N: BEM1-UP) C-16 IND (S/N: BFM1-UP)Marine Engine: 3406E MARINE (S/N: 9WR1-UP)Excavator: 320B (S/N: 1XS1-UP) 325B (S/N: 6DN1-UP; 2JR1-UP; 8RR1-UP; 5LW1-UP) 385B (S/N: MYA1-UP; RCD1-UP; BKF1-UP; FDL1-UP; ANS1-UP; CLS1-UP; BKX1-UP; BLY1-UP) 5090B (S/N: CLD1-UP; SJY1-UP)Off-Highway Truck/Tractor: 770 (S/N: BZZ1-UP)Track-Type Tractor: D8N (S/N: 9TC1-UP; 1XJ1-UP; 5TJ1-UP; 7TK1-UP) D8R Series II (S/N: AKA1-UP; 6YZ1-UP) D8T (S/N: J8B1-UP; KPZ1-UP) D9N (S/N: 6XJ1-UP)Wheel Dozer: 824G Series II (S/N: AWW1-UP) 834G (S/N: BPC1-UP; 6GZ1-UP)Wheel Loader: 980G Series II (S/N: AXG1-UP; AWH1-UP; AYT1-UP) 980G (S/N: BGC1-UP) 988G (S/N: 1NZ1-UP) 988G (S/N: BNH1-UP; 2TW1-UP)Wheel Tractor-Scraper: 621B (S/N: 2GB1-UP; 45P1-UP; 35V1-UP) 621F (S/N: 4SK1-UP; 8PL1-UP) 621G (S/N: CEN1-UP; ALP1-UP; CEP1-UP) 623B (S/N: 46P1-UP) 623G (S/N: CES1-UP; ARW1-UP; CEW1-UP) 627E (S/N: 6EB1-UP; 6GB1-UP) 627G (S/N: AXF1-UP; CEX1-UP; CEZ1-UP) 651E (S/N: 88Z1-UP) 657B (S/N: 47M1-UP; 53K1-UP)Failure to follow the following torque sequence may lead to premature wear of the No. 1 camshaft bearing.
Illustration 1 g00593987
Sequence for tightening the camshaft gearUse the following procedure to tighten the camshaft bolts.
Lightly lubricate the O-ring seal on the outside of the sealing plate of the camshaft with a 50/50 mixture of 8T-2998 Lubricant and engine oil that is clean.
Apply 9S-3263 Thread Lock Compound to the three bolts for the sealing plate of the camshaft.
Tighten the three sealing plate bolts on the camshaft to the following torque.Torque ... 12 3 N m (9 2 lb ft)
Tighten the camshaft bolts in the following sequence. Refer to Illustration 1 for the numbering of the bolts. ... 1, 4, 2, 5, 3, 6, 1, 4Torque ... 240 40 N m (177 30 lb ft)