ALLIS-CHALMERSParagraphs19-22
turnfromeitherextremeposition,
loosenlocknut(87)andturnadjusting
screw(86)clockwisetoreduceend
play.Besurehousingnuts(92)and
(93)aretightwhenmakingthisad-
justment.Allendplayinsectorshaft
75
87
90
88
Fig.ACI6--aeminersteering gear assembly as vsetfin early production B and
C
models.
75.
Expansionplug
76.
Housing
77.
Worm£ shaft
78.
Shims& gaskets
80.
Housingcover
81.
Tubeclamp
82.
Jackettube
83.
Bushing
86.
SectorA shaft
86.
Adjustingscrew
87.
Locknut
88.
Eccentricrivet
89.
Bushing
90.
Steeringarm(ballarm)
91.
Sectorshafthousing
92.
Housingnut
93.
Jamnut
94.
Conicallockring
96.
Eccentricsleeve
96.
Oilseal
907576
100
9689
,^
Hg, ACir—koss steering gear assembly (exploded view) as used in later and current
production B, C, and all
CA
tractor models.
76.
Expansionplug
76.
Housing
77.
WormA shaft
78.
Shimsft gaslcets
80.
Housingcover
81.
Tubeclamp
82.
Jackettube
83.
Bushing
86.
Sector& shaft
89.
Bushings
90.
Steeringarm
96.
Oilseal
99.
Sidecover
100.
Housingbracket
101.
Oilseal
103.
Snapring
104.
Bearingcup
106.
Bearingball
106.
Gasket
shouldbeeliminatedbutgearshould
notbind.
19.
GEARMESH.Toadjustgear
mesh,loosencolumnbracketclamp
andlocatemid-positionofgearby
turningsteeringwheelfromoneex-
tremepositiontotheotherthenback
halfway.Withgearinmid-position,
loosenhousingretainingnuts
V4,
turn
andeccentricsleevejamnut(93)V2
turn.
Slowlyturneccentricsleeve(9S)
clockwisewhilecheckingamountof
gearbacklashbyfeelingplayinball
arm.(Turningeccentricsleeveclock-
wisemovessteeringgearhousing
downinrelationtosectorshafthous-
ingbringingwormandsectorinto
deepermesh,therebyreducinggear
backlash.)Adjusteccentricsleeveun-
tilplayinballarmisbarlypercepti-
ble,
whensteeringwheelisinmid-
position.Makelastadjustmentofthe
eccentricsleeveintheclockwisedi-
rection.Aftermeshadjustmentiscom-
pleted,tighteneccentricsleevejam
nut,thenhousingnuts.
20.
CENTRALIZATION.Checkgear
centralizationbydeterminingamount
ofplayinballarmwhenwheelis
turned% turntotherightand%
turntotheleftofmid-position.Ifplay
isnotthesameonbothsidesofmid-
position,loosenhousingnutsandec-
centricsleevejamnutV4 turnand
centralizegearbyturningeccentric
rivet(88).Ifthereismoreplaytothe
right,turnrivetclockwiseandifmore
totheleft,turnrivetcounterclockwise.
Aftergearhasbeencentralized,re-
adjustgearijieshwitheccentricsleeve
aspreviouslydescribed.Ballarm
shouldbepositionedonsectorshaftso
thatsteeringgearisinmid-position
whenwheelsarestraightahead.
21.
OVERHAUL.Gearunitshould
beremovedfromtractor.Procedureis
readilyevidentfromanexamination
ofFig.AC16.Whenreassembling,in-
stallwormgearandshaftassembly
andadjustwormgearbearingsbefore
assemblingbalanceofsteeringgear.
Forcompleteadjustmentprocedure,
refertoparagraphs17through20.
B-C-CA-G-WF(RossGear)
(Refer to paragraphs 1,lA, IB, 3,
3A,3Band 3Cfor models C-CA front
gear and to 16through 21for Gemmer
main gear.)
Beforeadjustingthegear,discon-
nectdraglinkorremovesteeringarm
toremoveloadfromgearandpermit
locatinginmid-position.
22.
WORMSHAFT(CAM)END
PLAY.OnB,C,andCA,firststepin
makingthisadjustmentistoremove
thefueltank.Toreduceplayincam
11
