Bobcat S630 Skid-Steer Loader Service Manual 6987160 October 2010

Description

Bobcat S630 Skid-Steer Loader Service Manual 6987160 October 2010

The Bobcat S630 Skid-Steer Loader Service Manual 6987160 October 2010 is written for the loader mechanic who has to keep an S630 working after daily service, component replacement, or a full system overhaul. Publication 6987160 (10-10) applies to loaders with serial numbers A3NT11001 and above and A3NU11001 and above. Machines covered by this book are equipped with the Bobcat Interlock Control System (BICS). The opening pages locate the loader serial plate on the outside of the frame and the engine serial number on the side of the engine behind the alternator, then walk through the post-repair inspection list that must be completed before the machine goes back to a customer.

File Details

• Manual type: Service Manual
• Brand / model: Bobcat S630 Skid-Steer Loader
• Serial coverage: A3NT11001 & Above; A3NU11001 & Above
• Language: English
• Page count: 890
• File format: PDF
• Document number: 6987160 (10-10)
• Publication date: October 2010
• Copyright: Bobcat Company 2010, printed in U.S.A.

Machine Identity And Powertrain

Engine service in this S630 workshop book is built around a Kubota direct-injected V3307-DI-T turbo diesel of 3,3 L (203 in³). The specification pages list the same family as Kubota V3307-DI-TE3 Interim Tier IV: four cylinders, turbo-charged induction, closed crankcase breathing, and glow plugs that fire automatically in the RUN position. SAE 1995 gross output is given as 55,4 kW (74.3 hp) at 2400 rpm, with SAE 1995 gross torque of 264,4 N·m (195.0 lb-ft) at 1600 rpm. Low idle is 1250–1450 rpm and high idle is 2525–2650 rpm. Bore and stroke are 94 / 120 mm (3.70 / 4.72 in).

Rated operating capacity is 989 kg (2180 lb), rising to 1057 kg (2330 lb) with the 200 pound frame-mounted counterweight kit and 1080 kg (2380 lb) with the 300 pound kit. Tipping load is 1978 kg (4360 lb) and operating weight is 3496 kg (7707 lb). Travel speed is 0–11,4 km/h (0–7.1 mph) on a single-speed loader, or 0–11,4 km/h / 0–19,8 km/h (0–7.1 / 0–12.3 mph) with the two-speed option. The drive is fully hydrostatic four-wheel drive: infinitely variable tandem hydrostatic piston pumps feeding two fully reversing hydrostatic motors, then pre-stressed #120 HSOC endless roller chain in a sealed chaincase (two chains per side, no idler sprocket, no periodic chain adjustment).

Chapters Covered

• Safety & Maintenance — lifting and blocking the loader; lift arm support device; operator cab raise/lower and cab door sensor; trailer transport and towing; Remote Start Tool Kit MEL1563 and Service Tool Kit 7003031; service schedule; air cleaner; engine cooling; fuel system and biodiesel notes; engine lubrication; hydraulic/hydrostatic fluid, filters, and breather; chaincase oil; hand-lever and power Bob-Tach inspection; lubrication points; tires; spark arrestor muffler; pivot pins; storage and return to service; emergency exit; seat belt
• Hydraulic System — symbol glossary and troubleshooting; lift, tilt, and Bob-Tach cylinders (test, R&I, parts ID, disassembly/assembly); main relief valve test and adjustment; hydraulic pump and high-flow pump tests; control valve work for standard, ACS, and SJC machines
• Hydrostatic System — hydrostatic pump and motor service, charge circuit, drive belt and tensioner, controller bleed and calibration after pump or controller replacement
• Drive System — single-speed and two-speed brakes; axle seals, axles, sprockets, and bearings; chain R&I; chaincase covers
• Mainframe — seat bar; operator cab gas springs and cab R&I; standard and suspension seats; hand-lever and power Bob-Tach; lift arms; rear grille
• Electrical System & Analysis — harness connectors, fuse and relay ID, solenoid testing; battery service and jump starting; alternator belt, voltage, and charging tests; starter; standard key, keyless, and Deluxe Instrumentation panels; diagnostic service codes; BICS inspection; traction lock; ACS/SJC calibration; flywheel RPM sensor; password lockout; back-up alarm
• Engine Service — engine description, specifications, torque values, and troubleshooting; engine and hydrostatic pump package R&I; mounts; compression test; speed control (standard and SJC serial breaks); muffler; air cleaner housing; radiator, hydraulic fan, water pump, thermostat; lubrication system and oil pressure test; fuel shutoff, injection pump, governor, and injectors; cylinder head, valves, pistons, crankcase; timing gearcase and camshaft; turbocharger; flywheel and housing; EGR system tests and R&I
• Heating, Ventilation, Air Conditioning — heater valve, compressor belt and oil, system charging, diagnostics
• Specifications — S630 machine dimensions and performance; engine and drive data; controls; hydraulic flow and relief; electrical and capacities; tire options; SAE/metric bolt torque; hydraulic connection specs; hydraulic/hydrostatic fluid viscosity; conversion charts
• Alphabetical Index

Taken together, those sections give a technician a single path from daily fluid checks through cylinder rebuilds, hydrostatic calibration, chaincase work, BICS verification, and in-frame or out-of-frame Kubota engine repair. The book is not an operator handbook; the foreword sends the owner to the Operation & Maintenance Manual for starting and daily checks, and keeps this volume focused on shop procedures, adjustments, and analysis.

Hydraulic And Hydrostatic Work You Can Perform

Hydraulic pages start with a troubleshooting chart for no action, slow action, rough action, lift arms that creep in neutral, and lift that is slow at full engine RPM. Lift, tilt, and Bob-Tach cylinders are tested for internal leakage, then removed, torn down, and assembled with parts identification drawings. The main relief valve is described as the pressure limiter that dumps oil back to the reservoir; the book shows how to connect a hydraulic tester, warm oil to 60°C (140°F), read relief at high idle, and adjust. System relief at the quick couplers is specified as 23,8–24,5 MPa (237,8–244,7 bar) (3450–3550 PSI). Standard gear-pump capacity is 87,1 L/min (23.0 U.S. gpm); the high-flow option is 115,5 L/min (30.5 U.S. gpm). High-flow relief is checked against 24,1 MPa (3500 psi) and 25,5 MPa (3700 psi) targets with a 1/4-turn adjuster. Filters are beta 10 micron = 200 drop-in elements for both the hydraulic/hydrostatic circuit and the charge circuit.

Cylinder geometry is listed so a rebuild can be checked against printed numbers: lift bore 63,5 mm (2.50 in), tilt bore 76,2 mm (3.00 in), lift rod 44,5 mm (1.75 in), tilt rod 41,4 mm (1.63 in), lift stroke 860,3 mm (33.87 in), tilt stroke 354,8 mm (13.97 in). Function times are 3.4 s raise, 3.0 s lower, 2.3 s dump, and 1.7 s rollback. Hydrostatic service includes case-drain bleed, charge-pressure relief on the engine side of the pump, drive-belt stop adjustment, and a reminder that a replaced hydraulic controller requires hydrostatic pump calibration.

Electrical Analysis, BICS, And Instrumentation

The electrical section maps standard cab, deluxe cab, and mainframe harness connectors, then lists fuse and relay locations including a 100 ampere master fuse under the air cleaner. Charging-system tests compare B+ voltage against a 13.5 V threshold at idle and high idle. Starter tests separate a motor that spins from a drive that will not turn the engine. Instrument-panel coverage splits the left display (hours, RPM, speed management, maintenance clock, battery voltage, service codes, preheat, steering drift, drive response) from the right-side standard key panel, keyless start panel, and Deluxe Instrumentation Panel with password lockout and vitals screens.

Diagnostic service codes include engine oil pressure (M0409, M0414, M0415), battery voltage (M0322), air filter (M0117), and hydraulic solenoid faults. BICS inspection is written as a sequence with the engine stopped and with the engine running: seat bar, PRESS TO OPERATE LOADER, traction lock, and auxiliary hydraulics deactivation. ACS and SJC calibration procedures require jackstands, warm oil near 22°C (72°F), and a clear code list before the automatic test runs. Flywheel RPM sensor installation uses the plastic tip as a gauge against the ring gear.

Engine, Cooling, Fuel, And Capacities

Engine R&I is performed as an engine/hydrostatic pump package using removal attachment MEL1653-5. Mounting bolts tighten to 135 N·m (100 ft-lb). Compression checking uses MEL10630 plus adapter MEL1655 with the fuel stop solenoid disconnected. Valve clearance, valve timing, cylinder-head torque (187–196 N·m / 138–144 ft-lb), piston-pin and cylinder-bore limits (factory bore 94–94,022 mm, allowable 94,15 mm), connecting-rod torque (69–73 N·m / 51–54 ft-lb), and injection-nozzle opening pressure are all printed in the engine chapters. EGR service adds cold and hot coolant-temperature tests plus cooler and valve R&I with gasket orientation marked “F” downward.

Capacities the mechanic will use on the bench: fuel 103,1 L (27.2 U.S. gal); engine oil with filter 11,4 L (12.0 qt.); cooling system 11,4 L (3.0 U.S. gal) with heater or 11,7 L (3.1 U.S. gal) without; hydraulic/hydrostatic reservoir 10,2 L (2.7 U.S. gal); full hydraulic/hydrostatic system 41,6 L (11.0 U.S. gal); chaincase 39,2 L (10.35 U.S. gal). Electrical hardware is a 90 amp open-frame alternator, a 12 V battery rated 950 CCA at -18°C (0°F), and a 3,0 kW (4.02 hp) gear-reduction starter. Fuel guidance is Grade No. 2 or Grade No. 1 diesel; B5 must meet ASTM D975 or EN590. Coolant is a propylene glycol/water mix. Cab hardware after lowering is torqued to 54–61 N·m (40–45 ft-lb).

Maintenance Schedule And Shop Safety Built Into The Book

The service-schedule chart groups engine oil, air system, cooling, battery, fuel filter, and drive belts across 8–10, 50, 100, 250, 500, and 1000 hour columns. Safety pages require an approved lift arm support before any work under raised arms, jackstands under front axle tubes and rear frame corners before running the engine, and an engine-off rule before raising or lowering the ROPS/FOPS cab. Fire-prevention text covers debris in the engine bay, hydraulic leak checks without bare skin, no ether on glow-plug engines, and battery isolation before welding. Remote start tools MEL1563 / 7003030 let a technician run the machine with the cab up while traction lock and pressure-release switches stay under control.

Use The Bobcat S630 Skid-Steer Loader Service Manual 6987160 October 2010 On The Job

With this S630 service manual a shop can test and rebuild lift and tilt cylinders, set main and high-flow relief, replace hydraulic and charge filters, calibrate hydrostatic controllers, service chaincase axles and #120 chains, inspect and repair BICS and traction lock, read service codes, overhaul the Kubota V3307 diesel including injection equipment and EGR, and return the loader only after the 27-point post-service checklist and a working BICS test. Printed pressures, torque values, fluid grades, and serial breaks (including SJC speed-control splits at A3NT11900 / A3NU11025) keep those jobs on the numbers in publication 6987160 instead of guesswork.

Correct procedures and specifications matter on a hydrostatic skid-steer because a missed relief setting, a dry chaincase, or an uncalibrated controller shows up as heat, drift, or a machine that will not unlock traction. Instant PDF delivery after payment means the Bobcat S630 Skid-Steer Loader Service Manual 6987160 October 2010 is available on any device in the shop or in the field and can be printed for the bench with no shipping wait.