The valve is controlled by the hydraulic and mechanical parts of the tractor braking system
Control system for 1490D Energy harvester
Transmission Systems
Caterpillar CAT 966C Wheel Loader Service Repair Manual – 2806 Pages
If a vacuum pump is available
John Deere 544E, 544E LL, 544E TC, 624E, 644E Loader Technical Manual Workshop Guide The valve is controlled byFormat : PDF SUPPLIED AS DOWNLOADABLE LINK Manual Included: Repair Technical Manual: 564, 468 Pages (TM1414,TM1414A) Operation and Test Manual: 672, 492 Pages (TM1413, TM1413A) Specifications: Brand: John Deere Model: 544E, 544E LL, 544E TC, 624E, 644E Type: Loader Manuals: Repair Technical Manual and Operation and Test Manual Publication Numbers: (TM1414, TM1414A) and (TM1413, TM1413A) Language: English Format: PDF Description Table of Content Repair