4-25. IDLER GEAR REPLACEMENT (Cont)
(4) Lay outer bearing cup (14), numbered side down, on top of outer spacer ring (1 5). Using a
steel plate under ram of arbor press, press bearing cup into bore of gear until seated against
Place inner bearing cone (9), outside face down, on parallel bars on bed of arbor press.
Press idler gear hub (11) into inner bearing cone until inner hub mounting face is flush with
inner bearing cone outside face.
Install inner spacer ring (12) on idler gear hub so oil hole in hub is 180° from gap in inner
Place idler gear (16) and cups over hub (11) and inner bearing cone. Place outer bearing
cone (10) over hub.
Inner bearing cone and hub
mounting face must be supported
so bearing rollers are not loaded
during this assembly operation.
Turn idler gear while installing
outer bearing cone on hub to
Press outer bearing cone (10) onto
hub while rotating idler gear (16) to
Hold hub (11 ) and turn gear assembly
(3) to see if binding occurs.
Bearings must be clean and
lubricated with engine oil before
checking preload. Work in bearings
by rotating gear back and forth