Alamo T 7740 manual New Thick Blade Bar & Larger Bolts

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TECHNICAL INFORMATION BULLETIN No. 061897

Alamo Industrial ™ Technical Services Department

1502 East Walnut

Seguin, Texas 78155

830-372-2708

Models: Machete, MB21 S/N 01001 - 01071, 03507 & 02684 & MB24 S/N 01001 - 01040 & 03459

Bulletin No:

061897

Date:

Jun. 18, 1997

New Thick Blade Bar & Larger Bolts:

Early October 1996, in order to ensure an extended service life, a new blade bar was introduced which featured larger blade bar leaf bolts (from 7/8" to 1-1/4") and a thicker bottom leaf. As a result, longer mounting bolts (from 3-1/2" to 4") are required to ensure adequate thread engagement into the spindle shaft.

When ordering a replacement blade bar using the original number, the new blade bar design will automatically be sent. However, the 4 longer mounting bolts may not be included.

Therefore, when ordering a replacement blade bar, ensure that the proper length mounting bolts (P/N 02964861 which is a 4" Bolt) are also replaced. DO NOT attempt to mount the new style blade bar using the old shorter bolts. The best way is to always check the replacement bottom leaf thickness as compared to the bottom leaf that was removed. If the replacement is thicker then the new longer bolts will be needed. Another way to determine which one you have check the Leaf retaining bolt size.

Blade Leaf Bar Bolts (Torque 1-1/4" bolts to 2000 ft. lbs.)

Blade Bar Mounting Bolts (Torque to 400 ft lbs.)

Figure 1

Note: Replaces / Same as Bulletin No. 061897A

This document does not authorize the repair or replacement of parts under warranty

MACHETE

© 2005 Alamo Group Inc.

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Contents Edition Information Service BulletinsPage Information & Service Bulletins Introduction Index Machete Section Service Bulletins Alamo Group Inc Section Subject Pulley Fastening to Cutter Shaft of Flail Axe HeadMachete Models Failures of the mower push-pull switchInformation Bulletin 092895 from previous Technical Information BulletinParts Needed Welding ProcedureInformation Bulletin 121495 from previous Corrective Action New Parts Old Parts New Piston Pump used on MacheteNew Seal Protector Added to Blade Bar Assembly Information Bulletin 032596 from previous Oil Leaking from new single Acting Hydraulic Cylinders Dead Batteries on New tractors Cracks in Main Frame Information Bulletin 010397 from previous Interference between Tube Clamps and Main Frame Valve Block O-Ring Replacement Kit available King Pin and Boom Pin Bushing Drivers Available Machete Hitch Post Replacement Kits Hitch Post Replacement KitsRepair Procedures Flanges to prevent rust Information Bulletin 041797-1 from previousKit Numbers Cylinder & Linkage Pin Replacement KitsInformation Bulletin 041797-2 from previous Tilt Link Arm Stop New Thick Blade Bar & Larger Bolts Procedure Joystick Power Cut Off SwitchParts needed Parts Required Cylinder, Link Arm, Turning Arm & Hitch Post Pin Update KitUpdate Kits Combined Kit P/N Machete Following parts are required to make this modification Lock Valve Installation InstructionsElectrical connection Information Bulletin 120697 from previousTo Valve Eleminate Erratic Boom movement Part Numbers required Hood to Frame Interference on TS Series TractorsNew Holland TS Series Fuel Filter New Oil Filter Kit P/N Spindle Oil Filler Kit P/N When to Change Filter Filter Maintenance ProcedureElement Service Procedure Control Valve Relocation Change in the availability of rebuilt components Filter Kit to Update Control Valve System Kit P/N Filter Maintenance Procedure Buzz Bar Drive Coupling Design change Conversion Spindle Bearing Lubrication UpdateRecommended Brands of Hydraulic Oil Effective February 18 Warranty RepairsFactory Spoke Cast Pulley Information Bulletin 041503 from previous Recommended Tools Installation ProcedureProtection of Lexan Sheets Information Bulletin 102103 from previous KIts Available Driveline Update KitPulley Spacer Information Bulletin 011304 from previousMachete Service Bulletins Service Required Joystick ReplacementParts Labor Old Parts Disposition Termination Date Motor to Spindle Bolt Replacement King Post Pin Replacement Longer Pins Machete Rear Flap Bracket, Machete Rotary Head Service Bulletin 962503-1 from previous Service BulletinLower Crossmember Kit Installation Frame Rail Reinforcement, LH Frame Rail Joystick Control of Boom Movement Restrictor Installation Tilt Cylinder Function Parts Required Turning Arm King Pin Replacement Kits Turning Arm King Pin UpgradesNext Service Bulletin 971903 from previous Boom Hinge Point Pin Upgrades Service Bulletin 972103 from previous Restrictor Installation Lift & Dipper Cylinder Function Upper King Pin Bushing Slipping Blade Bolt Inspection / Recall Lower Cross Member Reinforcement Kit P/N Special Note New Holland T7740 & T6640 A/C Drier CampaignUnits Serial Numbers Model T Model T6640Units Serial Numbers New Holland TS Tractor Inspection CampaignTurning Arm Pin Update Kit P/N Service Bulletin 991012 from previous Repair Plates Dipper Boom Reinforcement PlatesValve Pressure Filter Kit Buzz Bar Head Motor Coupler Re-Design Buzz Bar Head Motor Coupler Coupler Update Kit Blade Bolt Inspection Blade Carrier Retaining Bolts 222Parts Required Port Plug Update SubjectService Instructions All BrahmasPage Alamo Group Inc