Veris Technologies OpticMapper - Operating Instructions - Manual (Page 31)

Pub.# OM17-OpticMapper
4-17
• If wheel does not fall freely, loosen hex-head bolt (1)
and slide wheel arm out just until wheel and arm move
freely. Retighten hex-head bolt (1) according to grade:
1⁄2in Grade 5 bolt on 25 series, 75 ft-lbs (102 N-m).
1⁄2in Grade 8 bolt on 25 series, 110 ft-lbs (149 N-m).
6. Keep turning hex adjuster and moving wheel arm
until the wheel is adjusted properly. When satisfied,
tighten pivot bolt (2) to 110 ft-lbs (149 N-m).
Null4:
Adjusting Gauge Wheel Scrapers
Refer to Figure 37 (bottom view)
Scrapers are optional, and may be useful in moist or
sticky soils that tend to accumulate on gauge wheels
and reduce intended sensing depth.
To adjust scrapers:
1. Loosen nut (5).
2. Slide scraper (6) toward gauge wheel (8) until
scraper touches tire.
3. Slide scraper (6) away from wheel (8) leaving a
1⁄8in (3mm) gap at (7) .
4. Rotate scraper left and right around bolt, making
sure it cannot touch tire if bumped in field. If it can
touch tire, back scraper away from wheel until it cannot.
5. Center scraper angle on bolt (5) until gap (7) is constant.
6. Tighten nut (5).
.
Figure 35
Figure 36