Parts list: № Number Qty Name Options 1 F055179 2 SERVICE STAIR 2 F055180 2 CLAMP 3 19M9552 4 Screw M10 X 160 4 F003346 4 SPRING WASHER Next page: ST201729 Boom Stop Sensor Housing ( - 001023) ST201730 Boom Stop Sensor Housing (001024 - ) ST201725 Boom Base (XXXXXX - ) ST201724 Boom Base