UPPERSTRUCTURE / Pilot Valve 4. Remove bolts (10) (4 used). Remove levers (9) (2 used) and pedals (8) (2 used) from pilot valve (6). : 17 mm 5. Remove socket bolts (11) (2 used). Remove pilot valve (6) from main frame (1). 8 9 10 6 W1JB-02-07-003 1 : 8 mm 6 11 W1JB-02-07-004 W2-7-15