1.4 Using The RoboRuler
The RoboMower includes a ruler style measurement stick called a RoboRuler that is used to help position
the perimeter wire along walls, fences, sidewalk, driveways, flower beds and other perimeter zones. There
are two basic measurements that are used on the RoboRuler. The shorter distance is used along
perimeter edges where the area outside the immediate perimeter (about 12 inches/30 cm) is free of
obstacles and is the same relative height as the perimeter edge. The longer distance is used along
perimeter edges where the area outside the immediate perimeter has obstacles or differences in the height
along the perimeter edge. See Figure 1.9.
Note: Use the short distance of the RoboRuler to set the wire position around the obstacle while creating a
Perimeter Island (See section 1.8).
1.5 Fastening The Wire To The Ground
It is not necessary to bury the perimeter wire, though you may do so if you wish, up to 3 inches (7.5 cm).
Small pegs or stakes are supplied with the RoboMower and they are used to fasten and hold the perimeter
wire to the ground, below grass level. They resemble a small tent stake. When properly fastened to the
ground, the wire and pegs will soon disappear under the growth of new grass. The pegs simply hold the
wire in place at the ground level to allow for the grass to grow over it. Pegs should be driven at distances
between one another that will keep the wire down below the grass level and prevent it from becoming a
tripping hazard while in the process of being covered with grass growth. See Figure 1.10. Remember, you
want to test the wire setup for edge mowing before you fill in the additional pegs. See section 2.8 and 2.9
for details on testing.
Damage to the eye is possible. Use proper
eye protection and wear appropriate work
gloves when hammering the pegs.
Hard or dry ground may cause pegs to
break when driving them in. In extreme
cases, watering the lawn where the pegs
will be driven can be beneficial.
!
WARNING!
Figure 1.8 –
Starting The Perimeter Wire in a Charging Station zone
Short distance
Perimeter
wire
position
Area outside perimeter - same basic
level and free of obstacles.
Area outside perimeter - has a wall as
an obstacle.
Lon
distance
Perimeter
wire
position
Figure 1.9 – Using the RoboRuler
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