HBEN2007 B0700050 .pdf
Original filename: HBEN2007_B0700050.PDF
Title: SB, ZTH, Deck and pump idler arm and bearing, 2007-06
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SB, ZTH, Deck and pump idler arm and bearing,
Models Affected: All commercial zero turn mowers including IZ,LZ and BZ(note the pump idler does
not fit the BZ units)
The deck and pump idler bushings have been upgraded to a maintenance free bearing instead of
the greaseable bushing that had been installed previously. The idler arm assembly will need to be
replaced to accommodate the new style bearing. This should greatly reduce failures due to lack of
lubrication and provide better operation. This should only be used as a replacement on failed units,
do not replace to upgrade working units. Complete instructions along with all the necessary parts are
included in the kit. All the above units use the same deck idler and pump idler except the BZ where
the pump idler does not have an upgrade. Future replacement bearings come installed in the idler
arm and the appropriate numbers are listed below (first time upgrade must use the kit part number).
New kit part number
Old idler/bearing number
Deck idler kit
539 13 05-30
539 13 03-91
539 10 32-30/539 10 34-27
Pump idler kit
539 13 05-32
539 13 03-92
539 10 43-88/539 10 34-27
Warranty information: Warranty only applies to bushing failures in the warranty period. 45 minutes
will be allowed.