Bobcat S650 Skid-Steer Loader Service Manual 6987168 (2011) PDF

Description

Bobcat S650 Skid-Steer Loader Service Manual 6987168 (2011)

This Bobcat S650 Skid-Steer Loader Service Manual (Document Number 6987168, dated 2011) is the complete technical resource for professional mechanics and serious owners maintaining, diagnosing, and repairing the S650 loader. Covering serial numbers A3NV11001 & Above and A3NW11001 & Above, this manual provides the procedures, specifications, and system knowledge needed to service everything from the Kubota V3307 engine to the hydrostatic drive system and the full electrical architecture.

File Details

• Manual Type: Service Manual
• Brand: Bobcat
• Model: S650 Skid-Steer Loader
• Serial Numbers Covered: S/N A3NV11001 & Above, S/N A3NW11001 & Above
• Document Number: 6987168
• Publication Date: 2011
• Language: English
• Page Count: Approximately 944 pages
• File Format: PDF

Chapters Covered

• Maintenance — Safety instructions, fire prevention, serial number locations, delivery report, loader identification, lifting and blocking, lift arm support device, operator cab, cab door sensor, special applications kit, loading and unloading, towing, remote start tool, service schedule, air cleaner service, engine cooling system, fuel system, engine lubrication, hydraulic/hydrostatic system, final drive transmission, Bob-Tach, lubrication, tire maintenance, spark arrester muffler, pivot pins, storage, stopping the engine, emergency exit, seat belt
• Hydraulic System — Glossary of hydraulic/hydrostatic symbols, troubleshooting, lift cylinder, tilt cylinder, Bob-Tach cylinder, main relief valve, hydraulic control valve (standard, ACS, SJC), lift arm bypass control valve, hydraulic pump (standard and high flow), hydraulic/hydrostatic filters, hydraulic fluid reservoir, oil cooler, bucket position valve, rear auxiliary diverter valve, Bob-Tach power block, front auxiliary hydraulic coupler block
• Hydrostatic System — Troubleshooting, hydrostatic drive motor, two-speed drive motor, hydrostatic motor carrier (standard and SJC), charge pressure, hydrostatic pump (standard and SJC), drive belt, two-speed/brake valve, drain manifold
• Drive System — Brake (single speed and two-speed), drive components (axle seal, axle/sprocket/bearings, chain removal and installation), chaincase (front, center, and rear covers)
• Mainframe — Seat bar, operator cab, operator seat (standard and suspension), Bob-Tach (hand lever and power), lift arms, rear grille, rear door (tailgate), fuel tank, control pedals and linkages (standard and ACS), control panel (standard and SJC), control handle/lever (standard, ACS, SJC), access panels, windows (rear, top, side), cab door, armrest, left and right lower panels, headliner
• Electrical System & Analysis — Glossary of electrical symbols, harness connectors (standard cab, deluxe cab, mainframe), troubleshooting, fuse and relay location/identification, solenoid testing, battery, alternator, starter, instrument panels, lights, Bobcat controllers (Gateway and Auxiliary), Bobcat controller (ACS), Bobcat controller (SJC Drive), speed sensors (SJC), diagnostic service codes, Bobcat Interlock Control System (BICS), seat bar sensor, traction lock, control system (ACS), electrical/hydraulic controls, service PC (laptop computer), calibration, steering drift compensation, flywheel RPM sensor, control panel setup, password setup (Deluxe Instrumentation and Keyless Start), maintenance clock, back-up alarm system, front horn
• Engine Service — Engine information and specifications, torque values, troubleshooting, engine removal and installation, engine mount replacement, compression checking, engine speed control (standard and SJC variants), muffler, air cleaner, engine cooling system (radiator, hydraulic fan, water pump, thermostat), lubrication system (oil pan, oil pump, relief valve, oil filter cooler, oil pressure testing), fuel system (fuel shutoff solenoid, fuel injection pump, governor, fuel camshaft, fuel injectors, nozzle pressure), cylinder head (glow plugs, valve clearance, valve timing, cylinder head servicing, valve guide, valve spring, valve tappets, rocker arm, bridge arm, push rod), crankshaft and pistons, camshaft and timing gears, turbocharger, flywheel and housing, Exhaust Gas Recirculation (EGR) system
• Heating, Ventilation, Air Conditioning — Air conditioning system flow, regular maintenance (filters, compressor drive belt, condenser, lubrication), troubleshooting (blower motor, air flow, compressor, gauge pressure, temperature/pressure chart, poor A/C performance, HVAC repair and leaks, electrical system, heater valve), system charging and reclamation, compressor, condenser, receiver/drier, evaporator/heater unit, thermostat, expansion valve, evaporator coil, heater coil, blower fan, heater valve
• Specifications — Machine dimensions, performance, engine, drive system, controls, hydraulic system, electrical system, capacities, tires, torque specifications for bolts (SAE and metric), hydraulic connection specifications, hydraulic/hydrostatic fluid specifications, conversions
• Index — Alphabetical index for quick reference across all sections

This Bobcat S650 service manual goes far beyond routine maintenance. It contains the complete hydraulic and hydrostatic schematics, full electrical wiring diagrams, diagnostic service codes, and step-by-step disassembly and assembly procedures for every major component on the machine. The engine section alone covers the Kubota V3307-DI-TE3 in exhaustive detail, from compression testing and valve clearance adjustment to piston and crankshaft servicing. The hydrostatic section walks through the tandem pump, drive motors, and motor carriers with the same precision. Whether you are diagnosing an electrical fault with the BICS system, rebuilding a lift cylinder, or calibrating the SJC drive controller, this manual provides the exact specifications, torque values, and procedures the factory intended.

What This Manual Enables You to Do

With this Bobcat S650 Skid-Steer Loader Service Manual 6987168 in hand, you can perform the full range of professional service tasks on the S650 loader. The hydraulic control valve section alone covers standard, ACS, and SJC variants, giving you the flexibility to service any configuration. The electrical section includes complete connector assignments, fuse and relay identification, and the diagnostic service codes your machine may display, so you can pinpoint faults quickly rather than guessing. The drive system section covers both single-speed and two-speed brakes, plus the complete chaincase and axle assemblies.

The engine service section is equally thorough, covering the Kubota V3307-DI-TE3 turbo diesel with procedures for the cylinder head, crankshaft, pistons, camshaft, timing gears, fuel injection pump, turbocharger, and EGR system. You also get the complete HVAC service section, which is often missing from aftermarket manuals. This manual is the same reference used by Bobcat technicians, reproduced in a convenient PDF format that you can access on any device.

Why Correct Procedures and Specifications Matter

The S650 is a complex machine with integrated hydraulic, hydrostatic, electrical, and engine systems. Using incorrect torque values, improper fluid specifications, or unverified diagnostic steps can lead to costly damage, reduced performance, or unsafe operating conditions. This manual provides the exact specifications and procedures Bobcat engineers developed for the S650, including torque values, pressure settings, fluid capacities, and calibration sequences. The troubleshooting charts and diagnostic service codes help you identify problems accurately before they escalate. The hydraulic and electrical schematics give you the system-level understanding needed to trace faults through the entire circuit.

Instant PDF Delivery

This Bobcat S650 Skid-Steer Loader Service Manual 6987168 is delivered as an instant PDF download. No shipping, no waiting, no physical media. You can access it immediately after purchase on any computer, tablet, or smartphone. Print the pages you need for the shop floor, or keep the entire manual on your device for quick reference. The PDF format makes it easy to search, zoom, and navigate through the 944 pages of technical content. Whether you are a professional technician, a fleet manager, or a serious owner-operator, this manual gives you the complete service information for the Bobcat S650 loader.