Make:
Bobcat (Melroe Company)
Model:
843 B Skid Steer Loader
Model Variant:
843 B; early and later serial number ranges differ in some components
Vehicle Type:
Skid steer loader (compact track/wheel loader class)
Production Years Covered:
Late 1970s through mid 1980s 843 series production; refer to manual for specific serial applicability
Manual Title:
Bobcat Skid Steer Loader 843 B Service Repair Workshop Manual
Document Type:
Factory-style service, repair and workshop manual
Target Audience:
Technicians, mechanics and DIY owners servicing the Bobcat 843 B
Purpose:
Factory-level repair procedures, diagnostic information and technical specifications
Advantage:
Complete system coverage in a single searchable document instead of scattered service bulletins
Key Feature:
Shop-floor usable with printable, zoomable, bookmarked chapters
Machine Class:
Rigid-frame skid steer loader with lift arms and front-mounted bucket
Drive Configuration:
Hydrostatic drive to four wheels, skid-steer turning
Typical Duty:
Construction, agriculture, landscaping and material handling
Coverage Areas:
Engine, transmission and drivetrain, electrical, brakes, suspension and steering, cooling and heating, fuel system, hydraulics, troubleshooting
Manual Type:
Service repair workshop manual
File Format:
Searchable PDF - zoomable, printable, bookmarked
Delivery Method:
Instant digital download, no shipping
Binding:
Digital (PDF download)
Re-Download:
Available anytime after purchase
Device Compatibility:
Windows PC, Mac, tablets and smartphones
Page Count:
N/A - page count not specified in the source description
General Information:
Specifications, safety warnings and maintenance schedules
Engine Service:
Complete engine overhaul including disassembly, inspection and rebuild
Transmission and Drivetrain:
Transmission and drivetrain service procedures
Electrical System:
Electrical system diagnostics and repair
Brake System:
Brake system inspection and service
Steering and Suspension:
Suspension and steering component service
Cooling and Heating:
Cooling and heating system maintenance and repair
Fuel System:
Fuel system maintenance and repair
Hydraulics:
Covered under general service scope; verify specific circuits in the manual
Assembly and Disassembly:
Step-by-step procedural diagrams with tool usage illustrations
Component Identification:
Component identification and location guides
Diagnostics:
Symptom-based troubleshooting with diagnostic flowcharts
Electrical Testing:
Electrical system testing with multimeter procedures
Function Verification:
Component function verification steps
Wear Inspection:
Wear limit inspections and allowable tolerances for components
Torque Specifications:
All factory torque specs included for fasteners
Tolerances and Limits:
Factory specifications, tolerances and wear limits included
Service Tools:
Special service tool numbers with illustrations
Parts Diagrams:
Exploded-view parts diagrams with OEM part numbers
Schematics:
Detailed wiring diagrams and electrical schematics
Applicability:
Refer to manual for specific model-year and serial applicability
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — 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 Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
Refer to manual for detailed engine type and displacement
Engine Options:
843 B series production engines; verify exact variant against serial number in the manual
Fuel System:
Diesel fuel system maintenance and repair procedures covered in the manual
Cooling:
Cooling system service procedures included
Rated Output:
N/A - verify rated horsepower for the specific serial range in the manual
Displacement:
N/A - not specified in the source description
Standard Transmission:
Hydrostatic drive system
Optional Transmission:
N/A - no optional transmission listed for this model
Drive to Wheels:
Four-wheel drive via hydrostatic motors
Steering:
Skid steer, achieved by varying drive speed left to right
Transmission Service:
Transmission and drivetrain service procedures included
Diagnostics:
Symptom-based troubleshooting flowcharts for drive complaints
Wheelbase:
N/A - consult the manual for the specific configuration
Overall Length:
N/A - consult the manual for the specific configuration
Width:
N/A - consult the manual for the specific configuration
Curb Weight:
N/A - consult the manual for the specific configuration
Rated Operating Capacity:
N/A - consult the manual for the specific configuration
Roll-Over Protective Structure:
ROPS/FOPS cab structure typical of this loader class; inspect per manual
Operator Restraint:
Seat belt and restraint inspection covered under general safety warnings
Safety Warnings:
General information and safety warnings section included in the manual
Lockout Procedure:
Follow manual safety warnings before service; lift arm support and pressure relief required
Crash Test Ratings:
N/A - off-road construction machine, no crash test rating applies
Instrumentation:
Verify gauge and warning lamp layout for the 843 B in the manual
Electrical System:
Charging, starting and lighting circuit diagnostics included
Driver Assistance:
N/A - no electronic driver assistance systems on this era machine
Audio System:
N/A - not equipped from the factory on this model
Maintenance Schedules:
Included in the general information section of the manual
Service Categories:
Engine oil, hydraulic and cooling system servicing listed in the schedule
Fluid Specifications:
N/A - use the capacities and fluid grades listed in the manual for the 843 B
Torque Values:
All factory torque values and bolt specifications included
Common Wear Items:
Filters, belts, hoses, seals and wear pads; inspect per wear limit tables
Troubleshooting:
Symptom-based flowcharts for diagnosing common faults
Manufacturer:
Bobcat, originally the Melroe Company of Gwinner, North Dakota
Brand Significance:
Bobcat pioneered the skid steer loader design and remains a leading manufacturer
Production Location:
N/A - verify plant of manufacture for the specific serial number
843 Series:
843 B is a development of the 843 skid steer loader series
Position in Range:
Mid-size loader of its era; successor models carried the design forward