Farr HD8625 - Illustration 3.H.3: Tong Assembly - Top Fastener Locations

3.14
hD8625 8-
5
/
8
” 35K Tong
Technical Manual
Assembly Procedures (continued...):
26. Locatethethreeun-threadedholesinthesidebodyofthetong,oneintherearcentreandonejusttoeithersideofthefrontopening.
Ifolddowelpinsareinplace,removethembeforeinstallationofthetopplate.Ifthedowelpinsareinanywaydamagedordeformed
McCoyrecommendsreplacingthemwithnew3/8”x1-1/2”hardeneddowelpins.Ifnecessarycleanthedowelpinholes,anddonot
insertdowelpinsuntilafterthetopplatehasbeeninstalled.
27. Useatemporaryliftingslingandcranetomaneuverthetopplate(PN1050-7T)intoposition,andplaceontothesidebody.Insert
thethreepositioningdowelpins(PN09-0092)throughthetopplateintotheirrespectiveholesinthesidebody.Useahammertotap
thedowelpinsuntiltheyareflushwiththetopplate.Securethetopplatewith143/8”UNCx1-1/2”hexboltsand3/8”lockwashers,
andten3/8”UNCx1”hexsocketheadcapscrewsasshowninillustration3.H.3.Donotinstallfastenersattherigidslinghanger
locations,indicatedbytheredcircles,orthedoorcylindermountingluglocationindicatedbythegreencircle.
IllustratIon 3.H.3: tong assemBly - toP fastener loCatIons
28. Installhalf-moonidlerpad(PN997-D17-109)overtheendofthepinionidlershaftandsecurewiththree5/8”NCx2-3/4”hexbolts
and5/8”lockwashers,followedbya1-1/2”UNFnylocknut.
29. Slidetheremainingrotaryidlerpadsovertherotaryidlershaftsandsecurewith1-1/2”UNFnylocknuts.
30. Presstheremainingpinionbearing(PN1234-08-01B)intothetoppinionbearingcapandinstalloverthetopofthepiniongearshaft
-securewithfour1/2”NCx1-1/2”hexboltsand1/2”lockwashers.
31. Installtopclutchbearingretainer(PN997-HT-59)overtheclutchshaftintothecutoutinthetopplateandsecurewithtwo10-24x
3/4”hexsocketheadcapscrews.
32. Inserttopclutchbearing(PN02-1403),followedbytheclutchbearingbushing(PN997-HT-60).
33. Installclutchdrivegear(PN997-HT-61)andsecurewithretainingsnapring(PN1234-00-04).
MainTenance