Service Bulletin

Damaged Suspension Frame
In some cases, seat bases like the one shown below, have experienced weld
failure where the pivot shaft is welded to the side rails. There are four different
places where these two components connect. These components must not be
re-welded. These parts are chrome plated, the plating causes metal fatigue
when welded and therefore will not hold. Should these pins break away from the
side rails, the seat assembly could separate from the base (serious injury could
result). Check these areas while doing your daily safety checks, and replace if
cracked or broken welds are present.
If weld failure occurs on the pivot shaft ends, the following parts need to be
replaced to convert the welded pivot shaft style seat base, to the non-welded
pivot shaft version.
• 66-8560 Nut - Push
• 76-1910 Shaft - Pivot
• 66-8600 Frame - Upper
Important:
If safety interlock switches are disconnected or damaged, the machine
could operate unexpectedly causing personal injury. If the interlock
system is not working properly, Do Not Operate the unit until it is properly
repaired. Check your operators manual for proper operating procedures
for your specific equipment. Contact your Toro distributor for assistance
as necessary to assure correct operation.
Pivot shaft