13
Before you start
5.  Tighten the nut (turn anticlockwise) using a socket wrench 
(H). Never fasten while applying your weight. Otherwise the 
thread of nut could be broken.
Adjusting the balance
Adjusting the shoulder harness
 The accompanying shoulder harness is suitable for people of 
standard adult physique, who are 150 cm - 195 cm in height 
and 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 suspension 
point (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 right 
balance. Rotate the clamp to level the cutting attachment and 
shield. 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 of 
the clamp and readjustment of the harness straps. Also, each 
type of cutting attachment and shield mounted on the unit may 
require balancing.
 WARNING
This product is designed to fit a wide variety of body sizes, but may not be adjustable for extremely tall persons. Do 
not use the unit if your feet can reach the cutting attachment when the unit is attached to the harness.
IMPORTANT
 A person's size can affect the balancing adjustment. Also the balancing procedure may not work with some units on some 
persons. If the shoulder harness does not fit you or cannot be adjusted well, please ask your dealer for assistance.
Balance tool for a level plane of cutting head rotation
 CAUTION
Do not install the suspension point to be located farther 
from you than the arrow mark ( ).