Bobcat S570 Skid-Steer Loader Service Manual 6990681enUS February 2019 PDF

Description

Bobcat S570 Skid-Steer Loader Service Manual 6990681enUS February 2019 PDF

This Bobcat S570 Skid-Steer Loader Service Manual 6990681enUS February 2019 PDF is the shop-level service document written for mechanics working on the S570 skid-steer loader. Publication 6990681enUS (02-19) (K) applies to machines with loader serial numbers ALM411001 and above and B3GZ11001 and above. The February 2019 English edition runs 1290 pages and gathers lifting and blocking practice, scheduled maintenance, hydraulic and hydrostatic repair, chaincase and brake work, cab and frame service, electrical diagnosis, engine overhaul steps, HVAC procedures, and the full specification set for this model.

File Details

• Manual type: Service Manual
• Brand / model: Bobcat S570 Skid-Steer Loader
• Language: English (enUS)
• Page count: 1290
• File format: PDF
• Document number: 6990681enUS (02-19) (K)
• Date: February 2019
• Serial coverage: S/N ALM411001 & Above; S/N B3GZ11001 & Above

Which Machines This Manual Fits

Use the serial plate on the outside of the loader frame before ordering parts or starting a procedure. Earlier or later S570 units can use different components, and this 6990681enUS book is written around the ALM411001 and B3GZ11001 ranges printed on the cover. The engine serial number sits on the side of the engine next to the oil fill cap. Inside the engine chapter the S570 is identified with a Bobcat direct-injected D24NAP turbocharged and intercooled diesel, 2.4 L class, four cylinders, closed breather, and counterclockwise rotation viewed from the flywheel. The specification tables list the powerplant as Bobcat Engine / 2.4L Bobcat Engine Tier 4.

Control layouts covered in the same book include standard steering levers and foot pedals, optional Advanced Control System (ACS), and optional Selectable Joystick Controls (SJC). High-flow hydraulics, two-speed travel, Power Bob-Tach, deluxe instrumentation, keyless start, and HVAC equipment receive their own removal, test, and calibration steps when the machine is so equipped.

Chapters Covered

• Safety and Maintenance — lifting and blocking; lift arm support device; operator cab raise/lower; trailer transport and towing; remote start tools MEL1563 and 7217666; service schedule; air cleaner; cooling system; fuel system; engine lubrication; hydraulic/hydrostatic fluid and filters; chaincase fluid; Bob-Tach inspection; lubrication points; tires; pivot pins; storage; emergency exit; seat belt
• Hydraulic System — symbol glossary and troubleshooting; lift, tilt, and Bob-Tach cylinders (including B3GZ11341 & above); main relief valve; standard control valve; ACS/SJC control valve; lift arm bypass; standard and high-flow pumps; filters and reservoir; oil cooler; bucket position valve; rear auxiliary diverter; Power Bob-Tach blocks by serial break; front auxiliary coupler block; automatic ride control
• Hydrostatic System — drive motors (standard and two-speed); motor carriers; charge pressure test and adjustment; hydrostatic pump; SJC pump and ALM425401 & above pump; drive belt and tensioner; two-speed valve; drain manifold
• Drive System — parking brake discs; axle seals, sprockets, bearings, and chains; chaincase covers
• Mainframe — seat bar; operator cab and seats; hand-lever and Power Bob-Tach; lift arms; rear grille; fuel tank; control pedals and linkage; fan duct panels and related frame components
• Electrical System — harness connectors and fuses; battery, alternator, starter; instrument panels; lights; Gateway, Auxiliary, ACS, and SJC Drive controllers; ECU; diagnostic service codes; BICS™; seat bar sensor and traction lock; ACS control system; ACD groups 0–3; calibration; steering drift compensation; passwords and maintenance clock; back-up alarm; horn; hand and foot engine speed controls; camshaft/crankshaft sensors; telematics
• Engine Service — D24NAP information, specs, sensors, torques, troubleshooting; engine R&I and mounts; compression and injector signal tests; oil pressure tests; DOC; air cleaner housing; earlier and later cooling systems and hydraulic fan; lubrication and fuel systems; cylinder head and valves; crankshaft and pistons; turbocharger; flywheel; EGR
• Heating, Ventilation and Air Conditioning (HVAC) — system service, charging and reclamation, condenser, compressor, evaporator/heater unit, heater valve, covers
• Specifications — S570 loader dimensions, performance, engine, drive, controls, hydraulics, electrical, capacities, tires; technical service guide values; bolt and hydraulic connection torques; fluid viscosity chart; conversions; service tools
• Alphabetical Index

Taken together, the chapters give a technician a single path from daily checks and safe lift-arm support through component-level hydraulic, hydrostatic, engine, and electrical work. Serial-specific splits appear where hardware changed, including lift and tilt cylinders from B3GZ11341, Power Bob-Tach blocks at ALM413900/ALM413901, and the SJC hydrostatic pump from ALM425401.

Maintenance Intervals and Shop Safety

The service schedule in the opening section sets the rhythm for owning an S570. Before each shift the book calls for engine oil level, air-filter display codes, cooling-system cleaning, fuel-filter water drain, hydraulic fluid level, and a walk-around for leaks and damaged treads or signs. First-50-hour and then scheduled work includes the engine/hydrostatic drive belt plus engine oil and filter. Battery cables, severe-condition oil changes, hydraulic hoses, and chaincase fluid fall on later intervals. At 500 hours or 12 months the fuel filter, hydraulic charge filter, and reservoir breather cap are replaced. At 1000 hours or 12 months the hydraulic/hydrostatic filter and reservoir fluid are due.

Safety content is not optional reading. The manual requires jackstands under the front axle tubes and the notched rear frame before the engine is run for service. Lift arms that stay raised must be pinned with the approved lift arm support device stored on the cab, installed by a second person over a cylinder rod until the tabs pass the cylinder end. The operator stays belted with the seat bar down until that support is in place. Cab raise and lower is done with the engine stopped because the cab frame can contact the steering levers. BICS™ inspection after any repair is listed in the foreword checklist before the machine goes back to a customer.

Hydraulic and Hydrostatic Work the Book Supports

Hydraulic coverage starts with a symbol glossary and a symptom chart for no flow, slow or jerky action, and lift arms that creep or rise slowly at high idle. Lift and tilt cylinders are tested for internal leakage, then removed one at a time with hoses marked and capped. Parts-identification pages and seal-kit assembly steps follow. The main relief is tested at the front quick couplers with a hydraulic tester held fully open before start-up; fluid is warmed to 60°C (140°F) and results are compared with the specification table. Direct pump tests split the standard section, charge section, and optional high-flow section, with a minimum 80 percent high-pressure-to-free-flow ratio used as a wear check. High-flow relief adjustment is written around 24132 kPa (3500 psi) and 25511 kPa (3700 psi) checkpoints.

Hydrostatic work covers tandem piston pumps, reversing drive motors, motor carriers, charge-pressure senders, and belt-driven pump coupling. Charge pressure is recorded after the fluid reaches 60°C (140°F). SJC pumps add hydraulic-controller R&I, air bleed at the solenoids, mechanical neutral, and controller neutral so uncommanded wheel movement codes stay cleared. After any dry pump install the book requires housing fill and a cranking prime before the first loaded start.

Engine, Electrical, and Cab Systems

Engine service is built around the 2.4 L Tier 4 Bobcat diesel. The chapter lists sensor locations, fastener torques, a long no-start and low-power troubleshooting key, and the engine-plus-hydrostatic-pump removal path using the dedicated lifting brackets. Compression testing, injector-signal checks, and oil-pressure readings at the block sensor and at the turbo inlet are written with adapter part numbers. Fuel-system work includes the transfer/high-pressure pump, rail, injectors, and the requirement to write each injector ID code into the ECU with the Bobcat Engine Analyzer after injector replacement, then run ten minutes at full throttle for learning. Valve lash is set cold: intake 0.4 mm (0.016 in), exhaust 0.45 mm (0.018 in). Cooling service is split between earlier and later radiator/oil-cooler and hydraulic-fan packages, including reversible-fan hardware where fitted. EGR cooler and valve R&I close the emissions hardware section.

Electrical diagnosis uses connector maps for standard cab, deluxe cab, manual-control mainframe, SJC mainframe, and engine harnesses, plus fuse and relay charts. Battery jump-start rules, 90-ampere alternator voltage tests (13.5 V threshold), and starter current checks sit beside Gateway, ACS, SJC Drive, and ECU replacement. The service-code list spans engine oil pressure, rail pressure, camshaft position, hydraulic charge-filter plugged, seat-bar faults, and traction-lock outputs. Calibration procedures must be run after a control valve, actuator, ACS controller, or hydrostatic pump is replaced. HVAC pages cover leak checks, recovery/recharge, compressor oil (PAG 46, 135 cc factory fill), condenser cleaning with the cooler pack, and heater-valve replacement as a complete assembly.

Specification Snapshot from the Manual

Loader tables in the specification section list rated operating capacity 885 kg (1950 lb), 952 kg (2100 lb) with the 200 lb frame-mounted counterweight kit, tipping load 1769 kg (3900 lb), and operating weight 2939 kg (6480 lb). Travel is 0–11.8 km/h (0–7.35 mph) in single speed or two-speed low range, and 0–17.3 km/h (0–11.02 mph) in two-speed high range. Engine ratings at 2600 rpm include 43.4 kW (58.2 hp) net ISO 9249 / SAE J1349 and 45.5 kW (61.0 hp) rated power; rated torque is 225.1 N·m (166.0 ft-lb) at 1800 rpm. Displacement is 2392 cm³ (146.0 in³) with 90 mm / 94 mm bore and stroke. Standard-flow hydraulics are 64.7 L/min (17.1 U.S. gpm); high-flow option is 101.1 L/min (26.7 U.S. gpm). System relief at the quick couplers is 23.8–24.5 MPa (3450–3550 psi). Capacities include 93.7 L (24.75 U.S. gal) fuel, 8.6 L (9.1 qt) engine oil with filter, 36.0 L (9.5 U.S. gal) hydraulic/hydrostatic system, and 32.2 L (8.5 U.S. gal) chaincase. Electrical system is 12 V with a 90 A alternator and 1000 CCA battery.

Why Technicians Use This S570 Service Manual

The Bobcat S570 Skid-Steer Loader Service Manual 6990681enUS February 2019 PDF supports the jobs that keep this loader in the field: scheduled fluid and filter service, lift and tilt cylinder reseal, main-relief and pump testing, hydrostatic motor and pump overhaul, chain and axle work, cab and Bob-Tach repair, BICS™ and service-code diagnosis, D24NAP engine R&I, injector coding, valve adjustment, cooling-fan service, and HVAC charge work. Following the printed pressures, torques, serial breaks, and calibration sequences prevents dry pump starts, unsupported lift arms, uncalibrated joysticks, and mixed-fluid cooling damage.

Download the PDF after purchase and open it on a shop computer, tablet, or phone. Print the pages you need at the bench. No shipping wait and no extra hardware required to start using the Bobcat S570 service procedures the same day.