Bobcat 323 Compact Excavator Service Manual 6986958enUS (07-14)

Bobcat 323 Compact Excavator Service Manual 6986958enUS (07-14)

Technical service manual developed strictly from the Table of Contents, providing diagnostic workflows, testing procedures, removal and installation steps, overhaul sequences and specification data for the Bobcat 323 compact excavator. Coverage includes hydraulic, electrical, engine, undercarriage, upperstructure and control systems for accurate repair and performance restoration.

Model Covers:

Bobcat 323 Compact Excavator - S/N A9JZ11001 & Above

File Format: PDF

Size: 20.49 MB

No. of pages: 697

Language: English

Delivery Method: Instant Download - Access your file immediately after purchase.

📑 Table of Contents Overview:

Safety, Identification and Scheduled Maintenance

• Foreword, safety instructions and fire prevention for maintenance, operation, electrical, hydraulic, fueling and starting tasks
• Spark arrester exhaust practices, welding and grinding precautions, fire extinguisher requirements
• Serial number locations for excavator and engine, identification and delivery report
• Lifting and blocking procedure, upperstructure slew lock, trailering: loading, fastening and transport instructions
• Operator cab and canopy details: door, front and side windows, wiper and washer reservoir, heater if equipped
• Service schedule chart with intervals for air cleaner, heater air filters, cooling, fuel and lubrication systems
• Fuel notes including biodiesel blend guidance, filter element replacement, tank drain and de-aeration
• Hydraulic service points: fluid checks, diagnostic couplers, filter and fluid replacement, hydraulic fluid chart
• Lubrication locations map across hinges, joints and chassis; travel motor oil checks and replacement
• Belt service for alternator: adjustment and replacement; seat belt and console lockout inspections; pivot pins maintenance
• Storage and return to service procedures; engine shutdown sequence and emergency exits
• Motion alarm system if equipped: inspection and switch position adjustment
• Remote start tool kits and harnesses: MEL1563, MEL1566, 7003031, 7003030, 6689747, 6689746

Hydraulic System - Schematics, Testing, Calibration and Overhaul

• Hydraulic and hydrostatic schematics with symbol glossary and circuit troubleshooting for main, cylinder, swing and travel circuits
• Cylinders: boom, arm, bucket, boom swing, blade, track frame expansion - testing, removal and installation, parts ID, disassembly and assembly
• System pressure setup: main relief, port relief, crossport relief and pressure reducing valve testing and adjustment
• Hydraulic control valve bank: description, R&I, sectional teardown and assembly for right and left travel, swing, boom swing, arm, bucket, auxiliary, boom and blade sections
• Hydraulic pump group: torque adjustment, piston and gear pump testing, auxiliary flow checks, start up procedure, full disassembly and assembly
• Manifold assembly with accumulator: description, R&I, parts ID, disassembly and assembly
• Drive and slew hydraulics: travel motor, swivel joint and swing motor - description, overhaul and reassembly
• Control pattern selector valve: description, R&I, parts ID and rebuild
• Joystick controls: right and left control levers - testing, handle R&I, teardown and assembly
• Hydraulic filter mount and reservoir R&I; oil cooler description and R&I
• Blade and track expansion solenoid block: block and solenoid R&I plus block disassembly and assembly

Undercarriage and Track Components

• Blade extension tray and blade R&I
• Tracks: lug height criteria, tension adjustment, removal and installation
• Track frame disassembly and assembly; expandable track frame R&I
• Track damage identification: steel cord cutting causes, embedded metal abrasion and separation, corrosion driven delamination
• Lug side and roller side defects: cracks, cuts, edge damage, fatigue and abrasion patterns
• Track idler and rollers: parts ID, disassembly and assembly
• Swing circle gear removal and installation

Upperstructure, Cab and Control Linkages

• Upperstructure description, removal and installation; ROPS canopy and cab R&I
• Cab glazing: front window and right side sliding windows R&I, glass handling and installation
• Right and left consoles: covers, gas springs, lock levers, latch hooks, adjustments and assemblies for canopy and cab models
• Engine speed control and cable R&I; blade control R&I and assembly
• Swing lock R&I; right pedal and linkage description, pedal and linkage teardown and assembly
• Travel controls: description, R&I and rebuild; left pedal R&I and assembly
• Control linkage assembly: multiple linkage rods, bellcranks, adjustments and complete installation
• Floor mat and floor panels: description and R&I; blade extension tray R&I
• Fuel tank and horn R&I
• Swing frame: description, R&I and bushing replacement; boom and arm bushing service; bucket R&I; tailgate and latch R&I
• Quick couplers: Klac and Lehnhoff systems - troubleshooting, daily inspection, R&I, parts ID and rebuild procedures

Electrical System and Diagnostic Procedures

• Electrical schematics and system description with troubleshooting chart
• Fuse and relay locations, fuel timer and diode identification
• Battery servicing, removal and installation, booster start procedure
• Alternator: output, full field and regulator tests, R&I, parts ID, disassembly and assembly
• Starter: R&I, parts ID, disassembly, cleaning and inspection
• Lighting: upperstructure and boom lights R&I and assembly, bulb replacement and light switch service
• Microswitch adjustment, testing and R&I; two-speed switch and two-speed boost switch service; fuel level sender testing

Engine Service, Timing and Reconditioning

• Engine specs, crankshaft re-grind data, torque values and troubleshooting; engine R&I and compression testing
• Spark arrester muffler and air cleaner R&I
• Cooling system: radiator R&I, water pump R&I and rebuild, thermostat R&I and testing
• Lubrication: oil pump R&I and service, oil pressure testing and relief valve
• Fuel system: shutoff solenoid and timer R&I, injection pump checks and timing, delivery valve and element tightness, fuel camshaft and governor, injectors and nozzles testing
• Cylinder head: glow plugs, valve clearance, head R&I and rebuild, top clearance, valve guide checks, valve and seat reconditioning, seat tightness, springs, rocker arm and shaft checks
• Pistons, rods and crankshaft: R&I and servicing, cylinder bore checks, connecting rod alignment, crank gear R&I, bearings service
• Camshaft and timing gears: gearcase cover R&I, backlash checks, idler gear service
• Flywheel and housing: R&I, hydraulic pump coupler R&I and rebuild, ring gear

Heater System

• Heater description and component access; heater unit R&I

Specifications and Reference

• 323 excavator specifications: dimensions, performance, controls, engine, hydraulics, cylinders, cycle times, electrical and instrumentation
• Drive and slew systems, capacities, undercarriage, crawler track design and ground pressure
• Torque specifications for general SAE and metric bolts
• Hydraulic connection specifications: ORFS, straight thread O-ring, tubelines and hoses, flare and O-ring flare fittings, port seal fittings
• Hydraulic fluid specs and conversion charts
• Service tools required: remote start, hydraulic, engine and HVAC tools; fuel, coolant and lubricants chart

This manual ensures accurate repair procedures, consistent diagnostics and long-term component reliability for your Bobcat 323 in demanding job site conditions.