ROD 2471869 - Caterpillar

Hub (C) should line up with hub assembly (B) and ring (A) slots as shown in Illustration 3. Apply Loctite 243 to the three 113-9232 Bolt and the eight 099-3649 Bolt during assembly. Torque the bolts to 28 7 N m (250 62 lb in).The new 491-3871 Sensor and Mounting Gp is adaptable to the machines listing in Table 2.
Table 2
Sales Model 491-3871 Sensor and Mounting Gp
Adaptable to Machines
621K S/N:WTA1-115
S/N:WTL1-101
621K OEM S/N:WTE1-114
S/N:WTP1-110
623K S/N:WTB1-193
S/N:WTM1-109
627K S/N:WTC1-222
S/N:WTN1-107 The following information relates to the 483-1023 Speed Sensor Gear Gp which is required for late production 621K, 623K, and 627K machines.
Table 3
483-1023 Speed Sensor Gear Gp Parts List
Item Qty Part Number Part Name
1 2 389-6092 Washer
2 1 436-6487 Hub
3 2 437-2771 Spacer
4 1 463-6785 Ring
5 1 463-6780 Hub
6 2 203-2533 Dowel
7 3 039-8557 Washer
8 8 198-4776 Hard Washer
9 2 1M-8653 Retaining Ring
10 8 220-6381 Bolt
11 3 259-1456 Bolt
12 1 463-6776 Housing
Illustration 4 g06342894
Illustration 5 g06312814
Rear view of the wheel speed sensor group
(A) 463-6785 Ring
(B) 472-8731 Hub As
(C) 436-6487 HubHub (C) should line up with hub assembly (B) and ring (A) slots as shown in Illustration 5. The three 259-1456 Bolts and eight 220-6381 Bolts have a pre-applied patch of Loctite. Install the three 259-1456 Bolt and torque the bolts to 105 20 N m (77 15 lb ft). Install the three 220-6381 Bolts and torque the bolts to 28 7 N m (250 62 lb in).The new 483-1023 Speed Sensor Gear Gp is adaptable to the machines listed in Table 4.
Table 4
Sales Model 483-1023 Speed Sensor Gear Gp
Effective in Production with Machines
621K S/N:WTA116-UP
S/N:WTL102-UP
621K OEM S/N:WTE115-UP
S/N:WTP111-UP
623K S/N:WTB194-UP
S/N:WTM110-UP
627K S/N:WTC223-UP
S/N:WTN108-UP