Alamo T 7740 manual New Piston Pump used on Machete, New Parts Old Parts

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TECHNICAL INFORMATION BULLETIN No. 020596

Alamo Industrial ™ Technical Services Department

1502 East Walnut

Seguin, Texas 78155

830-372-2708

Models: Machete Boom Mowers MB21 & MB24

Bulletin No:

020596

Date:

Feb. 5, 1996

New Piston Pump used on Machete:

A new Pump is being used on all Machete Boom Mowers. The new pump utilizes a solenoid valve and manifold (New Parts) to control pump swashplate movement instead of the former (Old Parts) electric solenoid, Spool valve and adjustable linkage. All other parts of the pump remain the same. The new parts provide for more positive trouble free operation of the pump and do not require adjustment.

There will be a harness adapter required to connect the new two wire connector to the old three wire harness. Adapter and instructions are included in replacement parts. When the former (old part number is ordered, all the new parts will be provided.

New Parts

Old Parts

Former Part No.	Description	Replacing Part No.s	Description
02967192	Pump Assembly	02969527	Pump Assembly
		02970201	Decal, Joystick
		02970205	Adapter, Wire Harness
		02970224	Insert, Instruction Sheet

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 Joystick Power Cut Off Switch ProcedureParts 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 InstructionsInformation Bulletin 120697 from previous Electrical connectionTo 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 Filter Maintenance Procedure When to Change FilterElement 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 Installation Procedure Recommended ToolsProtection of Lexan Sheets Information Bulletin 102103 from previous KIts Available Driveline Update KitPulley Spacer Information Bulletin 011304 from previousMachete Service Bulletins Joystick Replacement Service RequiredParts 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 Turning Arm King Pin Upgrades Parts Required Turning Arm King Pin Replacement KitsNext 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