BENDIX TCH-003-024 User's Manual
Contents
1. Technical Bulletin Bulletin No PRO 03 24 Effective Date 10 15 83 Page 1 of 1 Subject HR 1 Hydraulic Relay Valve The recently released HR 1 Hydraulic Relay Valve is designed for use on hydraulic braked light and medium straight trucks that incorporate a separate and independent hydraulically operated spring actuated parking brake system It functions as a control point that reduces and directs hydraulic pump pressure to and from spring actuated parking brakes A special PP 1 Push Pull Control Valve is used in conjunction with the HR 1 It contains special O rings and lubricant that are compatible to the fluid used in a hydraulic system and has a nominal automatic release pressure of 10 p s i It is identified with a spot of yellow paint and is serviced with maintenance kit 104091 This new system will be standard on all 1984 Ford models F C L and B trucks in the 600 700 and 800 series The following are the components and part numbers that make up the hydraulic relay system wor Button amp Pin Kit 102087 contains button 2967 41 HT HT HZ HT 62 29 HT HT HZ HZ HT HT
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