UPPERSTRUCTURE / Swing Device CAUTION: The housing (26) assembly weight: 178 kg (395 lb) 9. Remove bolts (17) (2 used). Remove lock plate (16) from bearing nut (15). CAUTION: If pushing shaft (31) by using a press, provide a protection cover (outer diameter: 369 mm (14.5 in), inner diameter: 90 mm (3.5 in), thickness: 25 to 30 mm (1.0 to 1.2 in)). Push shaft (31) with the protection cover on by using a press. When housing (26) and/or roller bearing (14) are broken and flown off, the metal fragments may result in personal injury. Use a press with the capacity less than 30 tons (66000 lb). Degrease the housing inside before heating roller bearing (14). Failure to degrease may cause a fire. 13.
Put the protection cover onto housing (26) and remove shaft (31) by using a press. At this time, the inner race of roller bearing (27) and sleeve (29) are removed with shaft (31) together. : 17 mm 10. Remove bearing nut (15) from shaft (31) by using special tool (ST 2926). 31 ST 2926 W178-02-06-008 11. Install eyebolts (M18, Pitch 2.5 mm) (2 used) into the bolt (24) hole on housing (26). Remove the bolts (M22, Pitch 2.5 mm) (2 used) securing housing (26) and bracket (ST 5100). Hoist the housing (26) assembly and remove the bracket. 14 31 26 Protection : 32 mm 12. Set the blocks on the press. Set the housing (26) assembly on the blocks.
26 W157-02-06-010 Press W1V7-02-06-002 Block W1HH-02-06-012 W2-6-7 tect er ion