jcb JS300 Service Manual page 188

When the dig end is used, always keep the drive sprockets at the rear. The stability of the machine is improved
and wear to the drive is decreased.
Where practical work with the tracks pointing forwards, to improve the stability of the machine. When working
with the tracks pointing to the sides exercise caution due to reduced stability.
Digging on a Slope
Before you dig a vertical trench on a slope, if possible cut-out a level base to work from.
> Slopes > Working on Slopes (Page 122).
Dump the trench material on the uphill side of the trench, far enough away to prevent it falling back into the
trench.
Machine Efficiency
When the bucket cylinder and link, and the arm cylinder and dipper are both at 90° to each other, the force of
each cylinder is at a maximum and the efficiency of the operation is increased.
113
Figure 145.
Figure 146.
Figure 147.
9831/1100-2
Operation
Working with the Excavator Arm
Refer to: Operation
113