Alamo T 7740 manual Restrictor Installation Tilt Cylinder Function, To Valve

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SERVICE BULLETIN No. 960511

Alamo Industrial Technical Services Department

1502 East Walnut

Seguin, Texas 78155

830-372-2708

 

Models:

Machete Boom Mowers

 

Bulletin No:

Date:

 

 

 

 

 

 

 

 

 

 

960511

 

Nov. 5, 1996

 

 

 

 

 

(Old # 960009)

 

 

 

 

 

 

 

 

 

Parts:

 

Labor:

Old Parts Disposition:

Termination Date:

 

100 % at Dealer Net

1.0 hrs. at Dealer registered

No Returnable Parts

Feb. 1, 1997

 

 

 

Shop Rate

involved

 

 

 

 

 

 

 

 

 

 

Restrictor Installation Tilt Cylinder Function:

Subject:

Cutting Head Tilt function drops too fast. Install one-way restrictor in tilt circuit to reduce the lowering speed of the tilt function.

Service Required:

1.Remove the cover from the control valve, clean the control valve of all debris to prevent contamination from entering system. Make certain that Boom is lower with head resting on the floor. Make certain that all pressure is relieved from the system and all hoses.

2.Remove and plug the hose from the rod end of the tilt cylinder (Red Tag) at the valve. Remove the adapter from the valve.

3.Install the new adapter (# 02969400), orifice plate and old adapter as shown in figure 1. Be certain that the groove in the orifice plate is installed as shown. The Groove should be away from valve.

4.Reassemble the machine and clean any spilled oil. Test for operation by running through its cycle to remove any trapped air in system and inspect for leaks.

Parts Required:

 

 

To Hose

 

Orifie Plate

 

 

 

 

 

 

Existing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Part No.

Qty

Description

 

 

 

 

 

 

Adapter

 

 

 

 

 

 

P/N 02969398

 

 

 

 

 

 

 

 

 

 

 

 

 

02969400

1

Straight Adapter

Note orientation

 

 

 

 

 

 

New Adapter

of notch in plate

 

 

 

 

 

 

P/N 02969400

02969398

1

Orifice Plate .055"

 

 

 

 

 

 

Notch away from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See Operators manual or Service Manual

valve

 

 

 

 

 

 

 

for Port locations on valve if needed.

Figure 1

To Valve

Warranty Compensation will be provided following proper filing of warranty claim in accordance with the Alamo Industrial Warranty Policy. Claim allowance may vary in accordance with laws governing a specific region. Any Warranty associated with this service bulletin must be within authorized dates.

MACHETE

© 2005 Alamo Group Inc.

2-11

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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 Units Serial Numbers Model T New Holland T7740 & T6640 A/C Drier CampaignModel T6640 Special NoteUnits 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 222Service Instructions Port Plug Update SubjectAll Brahmas Parts RequiredPage Alamo Group Inc