DRIVE GP-TACHOMETER 3N3886 - Caterpillar

Illustration 1 g02592636
To prevent damage to the motor, the case must be filled with hydraulic oil at least to the fill port before the motor is operated.
Table 1
Specification for 334-9970 Swing Motor Gp
Item Qty Part Specification Description
1 20 123-2139 Spring Free length is 44.2 mm (1.74 inch).
2 2 110-5525 Plug Torque to 59.0 5.9 N m (43.5 4.4 lb ft).
3 4 7Y-5221 Bolt Torque to 431 43 N m (318 32 lb ft).
4 2 170-9986 Spring Free length is 50.5 mm (1.99 inch).
5 2 170-9996 Plug Torque to 539 54 N m (398 40 lb ft).
6 2 188-4174 Relief Valve Gp Torque to 176 10 N m (130 7 lb ft)