Toro TRX-16 - Page 41

Figure61
1.Spoilsauger
2.Bolts
3.Drivesprocket
4.Sprocketmountingsurface
4.Loosenthe2boltsandnutssecuringtheboomtothe
trencherarm.
5.Loosenthejamnutontheadjustingboltintheboom.
6.Loosentheadjustingboltuntilyoucanremovethe
chainfromtheboom.
7.Removethechainfromthedrivesprocket.
8.Removethesixboltssecuringthedrivesprocket
(Figure61).
9.Removeanddiscardthedrivesprocket(Figure61).
10.Cleanthesprocketmountingsurfaceonthetrencher
(Figure61).
11.Slidethenewsprocketontotheshaft(Figure61).
Important:Thearrowonthesprocketfaceshould
bevisiblefromtherightsideofthetrenchand
shouldpointinaclockwisedirection;ifnot,turn
thesprocketaround.
12.Threadthesixboltsintothesprocketngertight
(Figure61).
13.Slowlybegintighteningtheboltsprogressingaround
thesprocketuntilallboltsaretorquedto129to155
N-m(95to115ft-lb).
Important:Tighteneachboltonlyhalfwayrst,
workingyourwayaroundthesixbolts,thenreturn
toeachboltinturnandtorquethem
14.Loopthechainovertheaugerdriveshaftandontothe
drivesprocket,ensuringthattheteethpointforward
ontheupperspan.
15.Settheupperspanofthechainintoplaceonthe
trencherboom,thenwrapthechainaroundtheroller
attheendoftheboom.
16.Threadtheadjustmentboltintotheboomandturnit
inuntilthereis3.8to6.3cm(1-1/2to2-1/2inches)of
slackinthechainonthebottomspan.
17.Threadthejamnutdowntheadjustingboltandtighten
itsecurelyagainsttheboom.
18.Torquethe2boltsandnutssecuringtheboomto183
to223N-m(135to165ft-lb).
19.Installthespoilsaugerusingtheboltandnutyou
removedpreviously.
Note:Torquetheboltandnutto102N-m(75ft-lb).
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