BENDIX TCH-003-032 User's Manual
Contents
1. Technical Bulletin Bulletin No PRO 03 32 Effective Date 10 1 90 Page 1 of 1 Subject Recommended Air Line Sizes For Relay and Brake Proportioning Valves The following chart can be used as a general recommendation for line sizes to be used when retrofitting or changing over to Bendix relay valves R 12 14 and brake proportioning BP R1 valves on a typical tractor or straight truck Deviation from these recommendations should be reviewed by the Original Equipment Manufacturer or Bendix H V S G since vehicle and component performance can be affected by line sizes LINE DESCRIPTION RECOMENDED LINE SIZE CONTROL LINE 3 8 O D Tubing SUPPLY LINE Single Rear Axle 1 2 O D Tubing Tandem Rear Axle 5 8 O D Tubing DELIVERY LINE Single Rear Axle Single Delivery Line 5 8 I D Hose to Tee From Relay Valve to 3 8 I D Hose or 1 2 O D Tubing Tee on Axle From Tee to Actuator Two Delivery Lines From Relay Valve 3 8 I D Hose Direct to Actuators Tandem Rear Axle Two Delivery Lines 5 8 I D Hose to Each Tee From Relay Valve to 3 8 I D Hose or 1 2 O D Tubing Tee on Each Axle From Tee to Actuator Four Delivery Lines From Relay Valve 3 8 D Hose Direct to Actuators
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