Bobcat CT440, CT445, CT450 Compact Tractor Service Manual (6987079enUS)

Bobcat CT440 / CT445 / CT450 Compact Tractor Service Manual 6987079 (1-14)

This expert-level PDF manual provides extensive repair, diagnostic, and servicing procedures for Bobcat CT440, CT445, and CT450 compact tractors. Supporting both HST and SST models, it includes advanced content on hydrostatic systems, fuel injection, drivetrain rebuilds, and full HVAC coverage. Developed for professional mechanics and technicians.

Model Covers:

CT440 HST - S/N ABHE11001 & Above
CT445 HST - S/N ABHL11001 & Above
CT450 HST - S/N ABHM11001 & Above
CT445 SST - S/N AKB911001 & Above
CT450 SST - S/N AKBP11001 & Above

File Format: PDF

Size: 34.86 MB

No. of pages: 1293

Language: English

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

📁 Table of Contents Overview:

1. Safety, Setup & General Maintenance

• Full safety instructions for PTO, fire prevention, fueling, welding, and electrical hazards
• Serial number identification, model decoding, and configuration scenarios
• Jackstand support procedures, cab installation, ballast and loader mounting diagrams

2. Routine Service & Adjustments

• Scheduled maintenance charts with lubrication points and torque references
• Air, fuel, and oil filter servicing; coolant flush; belt inspection and tensioning
• Front/rear axle fluid service, tire mounting specs, wheel spacing, clutch pedal care
• Transporting, towing, parking brake checks and neutral safety interlock verification

3. Engine Disassembly & Mechanical Systems

• Engine models: 4A200LWH (CT440), 4A220LWH (CT445), 4B243LWH (CT450)
• Compression test, crankshaft removal, piston servicing, oil pump and pressure checks
• Valve clearance, camshaft timing, glow plug diagnostics, rocker arm reconditioning

4. Fuel Injection System & Timing

• Injector removal, nozzle spray pattern, solenoid testing, and pump timing setup
• Fuel system bleeding procedures, valve seating and spray condition analysis

5. Hydraulic & Power Steering Systems

• Hydraulic schematics and joystick control valve diagrams
• Lift and tilt cylinder servicing (early/late model variations)
• MLS valve, modulator valve, and three-point hitch calibration
• Steering valve and cylinder testing, joystick linkage service (cab and no-cab units)

6. Hydrostatic Transmission Systems (HST)

• Hydrostatic pump removal, charge pressure diagnostics, neutral valve service
• Travel pedal calibration, linkage removal and pivot arm inspection
• System startup protocol post-service and drive pressure testing

7. Gear Transmission Systems (SST)

• Complete teardown of transmission and PTO shaft assemblies
• Countershaft, gear shaft, clutch housing disassembly and gear inspection
• Reassembly procedures with bearing tolerances and shim positioning

8. Drivetrain, Differential & Axle Maintenance

• Front and rear differential removal, bearing servicing, bevel gear case assembly
• Steering angle alignment, toe-in adjustment, pinion shaft rebuild procedures
• Drive shaft (early and late), brake pedal and axle case maintenance

9. HVAC – Heating & Air Conditioning

• Evaporator, blower fan, heater coil and thermostat removal
• Charging, reclamation and pressure-temperature troubleshooting charts
• AC system component diagnostics: condenser, receiver/drier, expansion valve

10. Operator Station & Chassis Components

• Cab post cover, firewall, splash board, headliner, seat and floor panel service
• Console cover variants, ROPS bar, PTO safety shield and drawbar installation
• Fender mounts, cab windows and door servicing, work light mounting

11. Electrical Systems & Component Testing

• Complete schematics and symbol glossary
• Fuse/relay locations per model, battery checks, alternator voltage tests
• Starter diagnostics, horn and lighting systems, cruise and PTO switch servicing

12. Technical Data, Specs & Conversion Charts

• Engine performance tables, loader lift specs, PTO drawbar weight capacities
• Metric/imperial conversions, SAE/metric torque values and fluid specs
• Dimensions with loader variants, ballast charts, and rear/front weight tables

This Bobcat CT440 / CT445 / CT450 Service Manual is the definitive guide for full-service maintenance, mechanical rebuilds, and system diagnostics for all configurations.