The JCB 525B-HL and 530B-HL, part of the B Series, are robust telehandler models designed for demanding work environments. These machines feature powerful Perkins diesel engines, such as the 1004-4T, delivering approximately 82 HP and 310 Nm of torque, with a 3.97-liter displacement. They are equipped with a hydrostatic transmission offering 2 forward and 2 reverse speeds, and 4WD for optimal traction. With lifting capacities of 2500 kg for the 525B-HL and 3000 kg for the 530B-HL, and a maximum reach and lift height of 5.2 meters, these telehandlers are engineered for reliability and efficiency in construction, agriculture, and material handling applications. Notable features include telescopic boom extension and optional outriggers for enhanced stability, along with ROPS and FOPS for operator safety. This Workshop Repair Service Manual provides comprehensive guidance for the maintenance and repair of the JCB 525B-HL and 530B-HL telehandlers. It covers essential operational details, technical specifications, and detailed procedures for routine maintenance, including daily checks, 250-hour, and 500-hour service intervals, detailing tasks such as engine oil and filter changes, transmission servicing, and hydraulic system maintenance. The manual also includes information on lubrication requirements, such as engine oil type and capacity, and hydraulic oil capacity. This resource is intended to assist owners, mechanics, and technicians in ensuring the optimal performance, longevity, and safe operation of their JCB telehandlers through accurate and detailed technical information.