Bobcat T2556 T2566 Telescopic Handler Service Manual 6986764 Revised 2010 PDF

Description

Bobcat T2556 T2566 Telescopic Handler Service Manual 6986764 Revised 2010 PDF

The Bobcat T2556 T2566 Telescopic Handler Service Manual 6986764 Revised 2010 PDF is an extensive mechanic’s service reference for the T2556 and T2566 telescopic handlers. At 844 pages, it provides the servicing and adjustment procedures needed for the machine and its component parts and systems, with detailed photographs, component illustrations, hydraulic diagrams, troubleshooting information, test procedures, removal and installation instructions, and component disassembly and assembly sequences.

Coverage applies to T2556 S/N A8FR11001 & Above and T2566 S/N A8G311001 & Above. The manual also identifies the machines as equipped with the Bobcat Interlock Control System (BICS). Throughout the manual, procedures are organized by service section so technicians can move from routine maintenance and system diagnosis into individual component repair and adjustment work.

File Details

• Manual type: Service Manual
• Brand: Bobcat
• Models: T2556, T2566 Telescopic Handler
• Document number: 6986764-EN (12-07)
• Revision: Revised (2-10)
• Copyright: Bobcat Company 2010
• Language: English
• Pages: 844
• File format: PDF
• Applicable serial numbers: T2556 S/N A8FR11001 & Above; T2566 S/N A8G311001 & Above

Workshop Procedures and Diagnostic Coverage

This Bobcat T2556 and T2566 service manual goes well beyond routine maintenance. Major hydraulic cylinders and valves are covered with removal and installation procedures, parts identification, disassembly, inspection and assembly information. The hydraulic section includes procedures for the lift cylinder, bucket positioning cylinder, extension cylinder, tilt cylinder, front and rear steering cylinders, quick tach cylinder, steering valve and hydraulic control valve. Detailed exploded component illustrations help identify seals, O-rings, wear rings, pistons, rods, head glands, springs, spools and related internal components during repair.

Hydraulic diagnosis is supported by troubleshooting charts, system schematics, testing instructions and adjustment procedures. The manual includes main relief valve testing and adjustment, port relief valve adjustment, steering mode valve work, pilot pressure lock-out valve testing and other hydraulic control procedures. The hydraulic schematic identifies the boom, telescopic and tilt circuits, steering, service and parking brakes, travel motor, pumps, hydraulic reservoir, fan motor, quick tach and optional hydraulic functions.

The hydrostatic section provides troubleshooting for drive-system complaints and explains hydrostatic circuit functions, along with service information for the hydrostatic drive motor and pump. Procedures progress from fault diagnosis into removal, component identification, disassembly and reassembly where applicable. This makes the Bobcat T2556 T2566 Telescopic Handler Service Manual 6986764 Revised 2010 PDF useful when the repair involves more than replacing an external service item.

Maintenance and Machine Service Information

The maintenance section provides a structured service schedule and procedures for frequently serviced areas of the machine. It covers engine oil and filter replacement, air cleaner elements, fuel filters, engine cooling system care, hydraulic and hydrostatic fluid and filter service, axle and differential lubricant checks, lubrication points, tyre maintenance and attachment-frame inspection. It also explains safe lifting and blocking, use of the approved boom stop, machine transport and towing procedures.

Service illustrations show the actual locations of filters, drains, fill points, cylinders, pivots, valves, electrical components and other service points. These visual references are particularly useful when dismantling assemblies or confirming hose, tubeline, connector and component locations before installation.

Chapters Covered

• Safety and Maintenance
  • Lifting and blocking the telescopic handler; operator cab and emergency exit; transporting, loading, unloading and fastening; towing procedures; service schedule; air cleaner service; engine cooling system; fuel system; engine lubrication; hydraulic/hydrostatic fluid and filter service; front and rear axle lubrication; machine lubrication; attachment frame; tyre maintenance; spark arrester muffler; approved boom stop; engine cover.
• Hydraulic System
  • Hydraulic system information and troubleshooting; lift cylinder; bucket positioning cylinder; extension cylinder and tubeline tray; tilt cylinder; front and rear steering cylinders; drive box; main relief valve; quick tach cylinder; port relief valves; steering mode valve block; brake valve; gear pump; fan motor; hydraulic reservoir; steering valve; hydraulic control valve; joystick; parking brake; pilot pressure lock out valve; accumulator; tow valve; front auxiliary hydraulic pressure release valve; flow control valve.
• Hydrostatic System
  • Hydrostatic system information and troubleshooting; replenishing valve function; oil cooler; hydrostatic drive motor; hydrostatic pump and related service procedures.
• Drive System
  • Drive-system troubleshooting; axle and differential service, including front axle information; drive-system components and associated removal, installation and repair procedures.
• Main Frame
  • Operator cab service with procedures divided by applicable serial-number groups, together with major frame-mounted machine components and assemblies.
• Electrical System and Analysis
  • Electrical system information and troubleshooting; serial-number-specific electrical coverage; fuses, diodes and relays; charging, starting and wiring-related diagnosis; electrical component and circuit analysis.
• Engine Service
  • Engine troubleshooting; engine speed control; engine-related service components; cooling and exhaust-related assemblies; engine/hydrostat assembly removal and installation; engine service procedures and torque data.
• Heating, Ventilation, Air Conditioning
  • Air conditioning system flow and principles; HVAC component identification; safety; basic troubleshooting; electrical checks; general air-conditioning service; system charging and reclamation; compressor and heater-related service.
• Specifications
  • Telescopic handler dimensional and performance specifications; engine information; machine torque specifications; hydraulic connection specifications; hydraulic/hydrostatic fluid information and other service specifications.
• Alphabetical Index
  • Reference index for locating systems, components and procedures throughout the manual.

Together, these chapters provide a broad repair path from scheduled maintenance and initial fault finding through system testing, adjustment, component removal and internal repair. The manual repeatedly combines written procedures with photographs, illustrations, exploded views, schematics and specified measurements or torque values so work can be followed in the context of the actual T2556 and T2566 assemblies.

Hydraulic, Electrical and Engine Reference

The hydraulic information is particularly detailed. A full hydraulic schematic identifies the major pumps, valves, cylinders, motor and control circuits. The manual records a hydraulic reservoir system capacity of 31.7 Gal. (120 L), along with pump-flow and pressure information used during system diagnosis and adjustment. The main relief valve procedure includes use of a hydraulic tester, fluid warming and pressure testing rather than relying only on symptom descriptions.

Engine information identifies the PERKINS 1104D-44TA. The hydraulic schematic data records 74.5 kW @2200 rpm and 410 Nm @1400 rpm, with an engine speed range shown from 850 rpm minimum to 2400 rpm maximum. Engine service is integrated with the rest of the machine procedures, including the engine/hydrostat assembly, cooling, lubrication, fuel and related service work.

The electrical section provides separate information where the machine configuration changes by serial number. It covers the 12 volt negative-earth charging system, fuse, diode and relay locations, troubleshooting and circuit diagnosis. This is complemented by the HVAC section, where electrical checks, component identification and air-conditioning troubleshooting are included alongside mechanical service procedures.

Detailed Component Repair

A major strength of the Bobcat T2556 T2566 telescopic handler service manual is the amount of component-level work illustrated step by step. Cylinder sections show how assemblies are removed from the machine, how hoses and pivot pins are handled, how individual cylinders are dismantled, and where seals, wear rings, O-rings and internal components fit during assembly. Similar depth appears in drive box, valve and steering work.

The extension-cylinder section, for example, includes cylinder-group removal, upper tubeline removal and installation, tubeline tray disassembly and assembly, individual cylinder removal, parts identification, disassembly and reassembly. Correct tubeline positioning measurements and fastening instructions are included where required. Steering-cylinder procedures cover removal from the axle, tie-rod or steering-bar connections, internal sealing components and reassembly. The drive-box section provides an exploded parts identification drawing followed by disassembly, assembly and special-tool information.

Safety information is incorporated throughout the service procedures. Instructions address supporting the boom, depressurizing hydraulic components, protecting against fluid injection, handling batteries and fuel, welding precautions, machine blocking and checking correct function after repair. The manual’s foreword specifically directs operating instructions, starting procedures and daily checks to the separate Operation & Maintenance Manual; this service manual is focused on mechanic-level servicing, adjustment and repair of the machine and its systems.

Repair Your T2556 or T2566 with the Correct Service Information

The Bobcat T2556 T2566 Telescopic Handler Service Manual 6986764 Revised 2010 PDF gives you the procedures needed to diagnose system faults, perform scheduled service, remove and install assemblies, rebuild many hydraulic components, test and adjust hydraulic functions, trace electrical problems, service the drive and engine systems, and work with the heating and air-conditioning system. Having the correct procedures, diagrams, measurements, pressure settings and torque specifications available while the machine is being repaired helps reduce guesswork and provides a consistent reference from diagnosis through final assembly.

Your manual is supplied as an instant PDF download after purchase. There is no physical book and no shipping delay. Open the PDF on a computer, tablet or phone, keep it available in the workshop, and print the pages or procedures you need for the job.