-34-143368 - PRO-TILL 33/40 (02-November-2018)IMPORTANT: Safely securePro-Till in winged forwardtransport position whenchanging or servicing discs.Disc Arm Components & Disc Options121080 - O-Ring,Nitrile M6x88 (1)121083 - O-Ring,Nitrile #238 (1)121082 - O-Ring,Nitrile M5.3x87.5 (1)131415 - Disc Hub Unit (Varied Suppliers) - Replacement O-RingsINA - Markings GBGI - No MarkingsSKF - MarkingsDisc Hub Components118279 - Bolt,1/2 x 1-1/2GR8 (4)131415 - Disc HubUnit (1)143556 - Disc, 20” (1)143549 - Rubber Insert (4)117991 - Bolt, Flange3/4 x 1-1/2 UNF GR8 (1)118635 - Flat Washer,3/4 x 2-1/4 (1) 118468 - Nut, 1/2- Flange (4)117580 - Bolt, Carriage- 5/8 x 2-1/4 GR8 (4)117581 - Lock Nut, TopFlanged - 5/8 GRG (4)572404 - Disc ArmClamp Plate (1)572401 - Disc ArmAssembly, Front Row (1)IMPORTANT: Add BlueLoctite to threads & Torqueto 350 lb.ft (475 N.m)Front Row - Standard Disc Assembly Components117581 - Lock Nut, TopFlanged - 5/8 GRG (4)131415 -Disc HubUnit (1)143556 - Disc,20” (1)143549 - RubberInsert (4)117991 - Bolt,Flange - 3/4 x1-1/2 UNF GR8 (1)118635 - FlatWasher, 3/4 x2-1/4 (1)118468 - Nut, 1/2 - Flange (4)117580 - Bolt,Carriage - 5/8 x2-1/4 GR8 (4)572404 - Disc ArmClamp Plate (1)572406 - Disc ArmAssembly, Back Row (1)IMPORTANT:Add Blue Loctiteto threads andTorque to: 350lb.ft (475 N.m)Back Row - Standard Disc Assembly Components573217 -AdjustmentSlider Plate (1)573215 - Adjustment Disc Arm (1)118635 - Flat Washer,3/4 x 2-1/4 (2)117438 - Carriage Bolt, 3/4 x 2-1/2 GR8 (2)117414 - Lock Nut, 3/4GRC Unitorque (2)RH - Back Row Adjustment Disc Arm ComponentsDiscs/Hubs - Required Numbers Per Machine33' Pro-Till Requires 78 Discs/Hubs40' Pro-Till Requires 94 Discs/Hubs40' CT Pro-Till Requires 98 Discs/HubsStandardEconomy 20"20" 22"Economy Discs Premium Discs20” Straight 20” Notched 20” Straight 20” Notched 20” Double-V 22” Straight 22” Notched 22” Double-VNotched Notched143567 143568 143556 143557 143553 143562 143563 143566Typical Factory Settings of End Discs20" Disc Option(3) - 18" End Discs 143550 &(1) - 20" Adjustment End Disc.22" Disc Option(2) - 20" End Discs on LH &(2) - 22" End Discs on RH(Note: Customers may wish to adjust the enddisc sizes and locations for customer preferredperformance in certain soil or field conditions.)143550Previous: 118175 - Bolt,3/4 x 1-1/2 UNF GR8 (1)118279 -Bolt, 1/2 x1-1/2 GR8 (4)Previous: 118175- Bolt, 3/4 x 1-1/2UNF GR8 (1)