Brunson 771 - Page 52

Model 771, 75, and 76-RH190 Transits 48
CAUTION:Donotallow
gorillastoadjustyouropti‐
calinstruments.
movefreely.Useanadjustingpininoneoftheholesinthecapstan
head,androtateitonlytotheextentthatyouslightlyperceivemo‐
tionintheadjustingpin.Re‐tightenthelocknutonthecapstanbolt.

Nowre‐tightentheboltsinthebearingcap,andusethese
tobringpressureonthebearingsothatthehorizontalaxis
isbroughttotheproperposition.Trytomaintainequal
pressureonbothoftheaxiscapbolts.Alsotrytomaintain
anequalgapbetweeneachsideofthebearingcapandthe
standardbelow(Figure4.12).

Asalways,firmlytightenalladjustmentswithoutover
tightening,forthebestresults.

6.Repeatsteps1through5untilthetransitpassesthe
plumblinecheck.

Whatisgoingonhere?Ad‐
justingthecapstanbolt“gets
youintheneighborhood”,
butistoocoarsetobeusedas
afineadjustment.Thebolts
whichsecurethebearingcap
arealwaysusedtobringthe
axistothedesiredlocation.
Figure4.12