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

Models: T 7740

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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.

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Page 69
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Alamo T 7740 manual Restrictor Installation Tilt Cylinder Function, To Valve