Veris-technologies 3150 Soil EC Mapping System - Operating Instructio Manuale Utente Scaricare il pdf (Pagina 46)

Pub. # OM17-EC

6-12

Procedure:

1) Remove hub cap by turning clockwise with a pipe wrench or large

adjustable wrench – these caps have left hand thread to prevent loosening

during field rotation.

2) If plunger is frozen in cap, remove allen head set screw on top of plunger

and apply penetrating oil on both sides of plunger. Let this stand for a few

minutes and try to remove. If it will not back out with allen wrench, lock

vise grips on the inside portion and turn out through inside of hub.

3) Clean all hub cap surfaces, install new o-ring, coat plunger and set screw

with di-electric grease and install as outlined above.

4) At the same time, inspect the end of the spindle. Over time the plunger will

wear a slight depression in the spindle face. This is common, and more

noticeable on high acreage units, or units that have been operated at high

field speeds. If the depression is 1/6” or more, carefully grind the face of

the spindle. Cover the bearing with a cloth or towel to prevent grinding dust

from entering the hub and bearings..

5) Re-install hub cap and tighten firmly. You may have to re-set the plunger

to compensate for the reduced length on the newly ground spindle. Re-

adjust as outlined above.

Note: If you are still unable to obtain favorable resistance readings, check for excessive corrosion

at the coulter blade mounting bolts, or the terminal located near the coulter pivot. It may be

necessary to grind the spindle end smooth, if a dimple has developed.

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Veris-technologies 3150 Soil EC Mapping System - Operating Instructio Manuale Utente Pagina 46