Rottler S7A, Operation And Maintenance Manual

Page: 48 / 94

Section 6 Maintenance S7A S8A Manual
www.rottlermfg.com
6-10
Driven Sprocket Removal and Replacement
Turn off all power to the machine before continuing.
Removal of Driven Sprocket
• Remove the upper housing cover, and drive belt, as explained previously.
• Place a support under the Cutterhead to support the inner spindle from falling. Remove the adjusting
nut using a 5/32 (4mm) diameter Rod through the slot in the upper housing. Once the nut is removed
the index bushing and the sprocket can be lifted off. Note the position and arraignment of the two
Belleville springs below the index bushing.
Replacement of Driven Sprocket
• Clean bushing, and sprocket. Do not use any lubrication on bushing, sprocket, or screws.
• Assemble the sprocket back onto the index bushing. Slide the index bushing and key back onto the
inner spindle, making sure the Belleville springs are in place. Install the adjusting nut back on the
inner spindle and adjust per inner spindle adjustment procedure.
• Replace drive belt, and adjust, as indicated in drive belt replacement.
• Replace upper housing cover and tighten the four screws.
UPPER HOUSING
COVER
KEY
INNER SPINDLE
DRIVEN SPROCKET
INDEX BUSHING
ADJUSTING
NUT
BELLVILLE
SPRINGS
BELT
refdriven sprocket assembly-6/21/2008