Stringline Setup
Topcon Paver System Five Operator’s Manual
3-6
Your local Topcon dealer carries the following supplies for setting
elevated stringline:
• Sonic Stringline, 1000’ roll (p/n 7020-0101)
• Sonic Grade Clips, box of 100 (p/n 7020-0121)
• Cut/fill Offset Tap, feet/tenths (p/n 7000-1026)
• Cut/fill Offset Tap, metric (p/n 7000-1027)
Although Topcon’s Sonic Tracker will work with many sizes and
types of stringline, for best results use an 1/8 inch diameter nylon
stringline. Using steel wire or a plastic coated stringline with a
smooth surface can cause erroneous results.
1. Place the Sonic Grade Clips on stakes and drive the stakes
approximately 6 to 8 inches away from, but in line with, the
hubs—Do Not disturb the hubs (Figure 3-7).
Figure 3-7. Place Clips and Position Stakes
2. Using an anchor pin at each end, roll out the Sonic Stringline
the length of the working area and pull the stringline tight.
6.0" to 8.0"
HU
ALIGN STAKES
WITH HUB
GRADE
STAKE
STAKE
LIP
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