UPPERSTRUCTURE / Pump Device 18. Place the drive disc (49) assembly on special tool (ST 5905) as illustrated in order to remove bearing nut (14). 22. Remove the outer race of roller bearing (16). 23. Remove roller bearing (15) from spacer (17) by using special tool (ST 1271). ST 5905 ST 1271 W1V7-02-04-011 19. Install special tool (ST 3054) on the spline of drive disc (49). Loosen bearing nut (14). W1V7-02-04-014 W1V7-02-04-012 20. Remove bearing nut (14) from drive disc (49). 21. Remove roller bearing (15) and spacer (17) from drive disc (49) by using a puller. W1V7-02-04-013 W2-4-27 49 ST 3054 54 17 P 15