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Bobcat

BOBCAT 773 SKID Steer Loader SN 509635001 & Above Factory Service Repair Manual

BOBCAT 773 SKID Steer Loader SN 509635001 & Above Factory Service Repair Manual

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Machine data plateRef 23676
Brand
Bobcat
Equipment
Construction
Models covered
Bobcat 773
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

What happens after you pay

  • Download link opens on the order page immediately
  • The same link is emailed to you โ€” re-download any time
  • Open on phone, tablet or PC; print only the pages you need
  • Not sure it covers your serial range? Ask us before you buy
๐Ÿท๏ธ Basic Information
Identification
Make:
Mercury Marine
Model:
Mariner 40, 50, 55, 60 HP
Model Variant:
2-Stroke Outboard
Production Years Covered:
1970s through 1990s (specific years may vary; see manual for exact coverage)
Engine Type:
2-stroke, in-line 3-cylinder (55/60 HP) or 2-cylinder (40/50 HP)
๐Ÿ‘‹ Introduction
Market Position
Target Audience:
DIY owners and experienced marine mechanics
Competitive Advantage:
Step-by-step instructions based on complete disassembly, with hundreds of photos and illustrations
Key Features:
Detailed substeps, notes/cautions/warnings, numbered instructions, bold figure numbers, enlarged insets, numbered table of contents, electrical troubleshooting with wiring diagrams
Coverage Highlights
Tools & Techniques:
Included
Troubleshooting:
Included
Lubrication & Maintenance:
Included
Tuning & Adjustments:
Included
Fuel, Ignition & Electrical:
Included
Power Head:
Included
Gearcase:
Included
Tilt and Trim:
Included
Wiring:
Included
Oil Injection:
Included
Rewind Starters:
Included
Engine Synchronisation & Linkage:
Included
๐Ÿ“‹ Manual Details
Manual Specifications
Manual Type:
Service and repair manual
Language:
English
Format:
PDF (digital download)
Delivery Method:
Instant download
Binding:
Digital
Page Count:
N/A - not specified
File Size:
N/A - not specified
Coverage Areas
Systems Covered:
All major systems including power head, gearcase, fuel, ignition, electrical, tilt/trim, oil injection, rewind starters, and linkage
Procedures Included:
Step-by-step repair, service, and troubleshooting procedures based on complete disassembly
Technical Depth:
Detailed substeps, notes, cautions, warnings, numbered instructions, and illustrations
Parts Information:
Illustrations and photos help identify parts; no separate part numbers catalog included
๐Ÿ“– Manual Coverage
Systems and Procedures
Tools & Techniques:
Covers proper tool usage and repair techniques
Troubleshooting:
Diagnostic procedures for common and complex issues
Lubrication & Maintenance:
Scheduled maintenance and lubrication points
Tuning & Adjustments:
Engine tuning and adjustment procedures
Fuel System:
Fuel delivery, carburetion, and related components
Ignition System:
Ignition components, timing, and troubleshooting
Electrical System:
Wiring, charging, starting, and electrical troubleshooting with diagrams
Power Head:
Complete disassembly, repair, and reassembly of the power head
Gearcase:
Lower unit service, disassembly, and repair
Tilt and Trim:
Service and repair of tilt and trim systems
Wiring Diagrams:
Detailed wiring diagrams for electrical systems
Oil Injection:
Oil injection system service and repair
Rewind Starters:
Manual rewind starter maintenance and repair
Engine Synchronisation & Linkage:
Synchronization and linkage adjustments
Cooling System:
Water pump, thermostats, and cooling passages
Mid-Section:
Mid-section components and service
Propeller:
Propeller selection, installation, and repair
Corrosion Protection:
Anodes and corrosion prevention
Specifications:
Torque values, clearances, and fluid capacities
Notes, Cautions, and Warnings:
Critical information highlighted throughout
๐Ÿ“Š Manual Specifications
File & Compatibility
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android โ€” any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print & Binding
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A โ€” digital download, no physical binding
Paper Type:
N/A โ€” digital download, no physical paper
โš™๏ธ Engine Specifications
Engine Options
Engine Type:
2-stroke, loop-charged
Cylinder Configuration:
2-cylinder (40/50 HP) or 3-cylinder (55/60 HP)
Displacement:
N/A - varies by model
Horsepower Range:
40, 50, 55, 60 HP
Bore x Stroke:
N/A - varies by model
Compression Ratio:
N/A - varies by model
Fuel System:
Carbureted; some models with oil injection
Cooling System:
Water-cooled with thermostat
Ignition System:
Capacitor discharge (CD) ignition
Starting System:
Manual rewind or electric start
Lubrication:
Pre-mixed fuel/oil or oil injection (varies by model)
Fuel Type:
Regular unleaded gasoline
Fuel/Oil Ratio:
50:1 for pre-mix models (verify in manual)
Full Throttle RPM Range:
5000-5500 RPM (typical)
Idle RPM:
650-750 RPM in gear (typical)
๐Ÿ”ง Transmission
Gearcase
Standard Transmission:
Forward-Neutral-Reverse gearcase
Gear Ratio:
N/A - varies by model
Shift Mechanism:
Mechanical shift with remote or tiller control
Lubrication:
Gearcase lubricant (see manual for specification)
Propeller Shaft:
Splined shaft
Clutch Dog:
Mechanical dog clutch
Water Pump:
Impeller-type, located in gearcase
Optional Transmission:
N/A - not applicable for outboard
๐Ÿ“ Dimensions
Exterior
Shaft Lengths:
15", 20", 25" (varies by model)
Transom Height:
N/A - depends on shaft length
Overall Length:
N/A - depends on shaft length
Overall Width:
N/A - not specified
Weight:
N/A - varies by model and shaft length
๐Ÿ›ก๏ธ Safety Features
Safety
Crash Test Ratings:
N/A - not applicable for outboard motors
Kill Switch:
Emergency stop switch with lanyard (varies by model)
Overheat Warning:
Overheat warning horn or light (varies by model)
Over-Rev Limiter:
N/A - not typical for this era
Neutral Start Switch:
Prevents starting in gear
Corrosion Protection:
Sacrificial anodes and protective coatings
Fuel Shut-Off:
Manual fuel shut-off valve (varies by model)
๐Ÿ’ก Technology Features
Infotainment
Audio System:
N/A - not applicable for outboard motors
Driver Assistance:
N/A - not applicable for outboard motors
Instrumentation:
Analog gauges for speed, RPM, trim, and warning lamps (varies by boat package)
Oil Injection:
Automated oil mixing on equipped models
Tilt and Trim:
Power tilt and trim on equipped models
Electric Start:
Available on some models
๐Ÿ”ง Maintenance
Service and Fluids
Service Intervals:
See manual for detailed schedule; typical: 100 hours or annually
Gearcase Lubricant:
Mercury/Quicksilver Gear Lube or equivalent
Engine Oil:
TC-W3 certified 2-stroke outboard oil
Fuel/Oil Ratio:
50:1 for pre-mix models
Spark Plug Gap:
N/A - varies by model, see manual
Spark Plug Type:
N/A - varies by model, see manual
Water Pump Impeller:
Replace every 1-2 years or as needed
Thermostat:
Inspect/replace as needed
Anodes:
Inspect and replace when deteriorated
Common Wear Items:
Impeller, spark plugs, fuel filters, anodes, propeller, and gearcase seals
Known Issues:
N/A - refer to troubleshooting section for specific problems
๐Ÿ“š Vehicle History
Brand Heritage
Manufacturer:
Mercury Marine (Brunswick Corporation)
Brand:
Mariner (Mercury's brand for international markets and certain US markets)
Model Evolution:
Mariner outboards were rebadged Mercury models; 40-60 HP 2-stroke models were produced from the 1970s to 1990s
Production Location:
N/A - primarily USA (Fond du Lac, Wisconsin), but may vary by model and year
๐Ÿ† Awards & Recognition
Recognitions
Industry Awards:
N/A - not specified for this model or era
Notable Achievements:
N/A - not specified for this model or era

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the serial range before you buy

Manufacturers change procedures and part numbers by serial-number break. If your data plate shows a serial prefix that is not listed above, contact us with the model and serial number and we will confirm coverage before you order.

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