Craftsman 486.248400 - Manual (Page 9)

Make sure the attachment clutch lever on the dash
panel is in the disengaged (down) position,
Position the idler arm so that it points straight
forward, as shown in figure 10. Align the engage­
ment rod trunnion with the hole in the idler arm by
screwing the trunnion in or out on the rod. Attach
the trunnion to the idler arm using a 5/64" hairpin
cotter. See figure 10.
When assembling the belt under the tractor, hold this
manual above you so that you will be viewing the belt
diagram and the tractor from the same direction.
• Assemble the short "V" belt onto the engine pulley
so that it passes between the pulley and the engine
pulley keeper. Next assemble the belt onto the
large rear pulley on top of the clutch/idler assembly,
passing it between the pulley and the keeper bolt
located beside the pulley. Position the idler pulley
against the outside of the belt. See figure 11.
IMPORTANT: Make sure that the "V" belt is not
assembled around the outside of the engine pulley
keeper or the keeper boit.
INSTALLING THE CLUTCH/IDLER ASSEMBLY ON
TRACTORS WITH ELECTRIC ATTACHMENT
CLUTCHES (Use these instructions if your tractor
has a push/pull switch on the dash panel for start­
ing and stopping the mower deck.)
• Turn the clutch/idler assembly upside down and
place the extra tensioning chain through the left
front hole as shown in figure 12. '
FIGURE 12
• Hook the extra spring through the end of the
tensioning chain. See figure 13.
• Assemble the spring and a 3/8" hex lock nut onto
the bottom of the bolt and nut which secures the
idler pulley to the upper idler arm. Hold the bolt
head and tighten the 3/8* hex lock nut, leaving it
loose enough for the spring to pivot freely between
the two nuts. See figure 13. ,
• Attach a 3/32" hairpin cotter to the chain, placing it
in the fifth link from the spring. See figure 13.
FIGURE 13 VIEWED FROM UNDERNEATH