12Before you start The accompanying shoulder harness is suitable for people ofstandard adult physique, who are 150 cm - 195 cm in heightand 60 cm - 140 cm in waist size. Use a shoulder harness when provided or when recommend-ed in this manual. Adjust both harness and the suspensionpoint (A) on the unit so the unit hangs with the cutting attach-ment a few centimetres above ground level (B). The cutting attachment and shield should be level in all direc-tions. Harness the unit on the right side as shown. Slide suspension point up and down the tube to find the rightbalance. Rotate the clamp to level the cutting attachment andshield. Lock in position. If the suspension point is a free-spin-ning type, the unit may tend to roll over sideways, however,you should still level the attachment and shield on the front-to-rear axis. Balancing and levelling, as above, may require relocation ofthe clamp and readjustment of the harness straps. Also, eachtype of cutting attachment and shield mounted on the unit mayrequire balancing.Balance tool for a level plane of cutting head rotationCAUTION Do not install the suspension point to be located fartherfrom you than the arrow mark ( ).