Alamo T 7740 manual Valve Block O-Ring Replacement Kit available

TECHNICAL INFORMATION BULLETIN No. 031097

Alamo Industrial ™ Technical Services Department

1502 East Walnut

Seguin, Texas 78155

830-372-2708

Models: Machete, MB21 & MB24

&

Brahma Side Mount models

Bulletin No:

031097

Date:

Mar. 10, 1997

Valve Block O-Ring Replacement Kit available:

A kit (Kit # 02972094) to replace the O-Ring and Back-up Rings which are located between the valve block and the motor housing on the piston motors

#02977193 used on the Brahma rotary and Machete boom mounted cutters is available. The Valve block must be re- moved when the motor is replaced as it is attached to the support plate. This causes an occasional failure of the seals.

Install O-Rings and Back-up Rings on the valve block. The High Pres- sure Ports require an O-Ring and Back- up Ring. The O-Ring goes on first (against valve block) , then the Back-up ring (against motor) as shown (See Figure 1). Install the Square-Cut Ring in the Low Pressure Drain Port of the valve block.

When installing the valve block the retaining bolts to the motor they must be torqued to 35 ft. lbs. in an alternating pattern.

O-Ring

Back-up Ring

Figure 1

Valve Block Retaining Bolts

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

MACHETE

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