Onan CCK Series User Manual

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70
wea.r may be 'caused from high'nlica befween.cCln'imutatorbars, rough
c,jrrimutatot
or colleCtor rings; or frbma' deviationft'om!!h:eutral"posi-
. tioninthe'adjtistment'of the' brush rig. KEVER bend the constant .. pres-
sure..;.tyt>e·· sprihg over the edge of its' support. . .
BRUSHRIG POSITION. -
Check the witness mark on the brush rig and
. . . . '. . . .' ··if necessary align it w'iththebdss in the end:
bell. If the brush rig is adjusted so that there is,ar'cing oftheb:rushes, .
bttishwear'will be rapid, voitageand cutrentwillnot hoTd steady, and
the:
generator rnayoverheat .. ' .
Whenever.
::Ii riewbrllsh rig or armature is:iristaI1ed,' the brush rig must
be adjustedtb thepoin.twhere'the brushes 'do not arc regardless of where
thewithess"matk falls. This 'is! coml'll'oillyknowll ~as the "neutral"brush .'
positibn.~:l. :i' '. i'"
COLLECTOR RINGS (AC Units) - If the collector rings become groov-
" "'edor out of round, 'or the brush Sur;;'
face becomes pitteqor rough so that 'goodbtush seating cannot be ,main-
tained, ur:em'ove thearmattireamd refiniSh the collectorrihgsin:a lathe ..
If the· commutator appearst6:bce rough or· scored, lJefinishit at th~ same·
time. Remove or adequately shield the ballbear,ing 'during refinishiIig.
COMMUTA'I':OR.· .... ' The commutator; bars wear down with usage so that
the mica between them must be undercut. This
shbilldilDe 'doneass6oil' as the m:lca on(anypaTt 0fthe.eomm.utatorteacfies
the brushes. A suitable undercutting tool can be made frOID/a haiek,sawi
bl~e •. :'iAvoid 'injriry;,to:the'BUFfaces;of!the:'cbpp'er bars,~,'Lea:.ve!n:o.burrs
al'Ong'the:iedges cof, the'bars/':The mica musi' also:' be; undercut whenever, .
FIG. 51 - COMMUTATOR REPAIR
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Onan CCK Series Specifications

General

Brand	Onan
Model	CCK Series
Category	Portable Generator
Language	English