Your loader is down and the clock is running. This Bobcat 440, 443 service manual PDF (OEM #6566694) takes the 440, 443, and 443B Skid-Steer Loader from hydrostatic pumps to Bob-Tach. The 346 pages hold hydraulic and hydrostatic schematics with full fluid routing, wiring diagrams for both the 440 and 443 alternator systems, alongside step-by-step service procedures. Dedicated troubleshooting covers the hydraulic, hydrostatic, and electrical systems, and torque specifications break down by component group. Torque the tilt cylinder bolts to 190–220 ft.–lbs. (258–285 Nm), then swap the hydraulic filter at the factory 100-hour interval using the specified 10-micron cartridge. Bookmarked and searchable, it opens on any device, so you can pull it up at the machine and get back to work.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| Maintenance Safety | 3-4 | |
| Hydraulic System | 35-90 | Hydraulic / Hydrostatic Schematics, Troubleshooting, Hydrostatic System Information (37° Flare Connections, Straight Thread O–Ring Fitting, Tubelines and Hoses) |
| Hydrostatic System | 91-140 | Troubleshooting, Hydrostatic System Information (Replenishing Valves Function) |
| Drive System | 141-156 | Parking Brake (Adjustment, Removing Parking Brake, Inspecting the Parking Brake, Installing the Parking Brake), Drive Chains (Removing the Drive Chain, Installing the Drive Chain) |
| Main Frame | 157-172 | Operator Cab (Raising the Operator Cab, Lowering the Operator Cab, Jumper Start Switch, Removing the Operator Cab, Installing the Operator Cab) |
| Electrical System | 173-224 | Electrical Schematics, Troubleshooting, Battery, Operator Cab Wire Harness, Engine Wire Harness, Alternator System (440), Alternator System (443) |
| Engine Service | 225-312 | Engine Service - Kohler (Troubleshooting, Engine & Attaching Parts, Ignition System, Carburetor and Governor, Reconditioning the Engine) |
| Technical Data | 313-324 | Loader Specifications (Loader Dimensions, Operations & Performance, Engine, Hydraulic System, Electrical, Drive System, Capacities, Tires) |
| Specifications | 325-342 | Torque Specifications (Engine Group – 440 Loader, Engine Group – 443 Loader, Fuel System Group, Steering Controls & Panel Group, Bob–Tach & Lift Arm Group, Seat Bar & Pedal Group, Brake, Chaincase & Axle Group, Hydraulic Group, Operator Cab, Main Frame & Rear Door Group, Hydrostatic Group – 440 Loader, Hydrostatic Group – 443 Loader) |
| Service Manual Revisions | 343-346 | 440-1, 440-2 |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| All Models |
| Wheel Nuts Torque | 40–45 ft.–lbs. (54–61 Nm) | p. 30 |
| Lift Cylinder Bolt Torque | 150–160 ft.–lbs. (203–217 Nm) | p. 82 |
| Tilt Cylinder Bolt Torque | 190–220 ft.–lbs. (258–285 Nm) | p. 82 |
| Hydraulic Filter Element Replacement Interval | every 100 hours | p. 11 |
| Hydraulic Filter Type | 10 micron replaceable cartridge | p. 316 |
| Air Filter Element Replacement Interval | every 50 hours | p. 15 |
| Air Filter Element Type | Dry replaceable paper element | p. 315 |
| Hydraulic Hoses and Fittings Torque (General) | 90–100 ft.–lbs. (123–135 Nm) | p. 335 |
| 37° Flare Connections Tightening (example) | 2-1/2 hex flats for 1/2-20 thread size | p. 50 |
| 440 |
| Engine Oil and Filter Replacement Interval, 440 | every 50 hours | p. 18 |
| 443, 443B |
| Engine Oil and Filter Replacement Interval (443, 443B) | every 100 hours | p. 18 |
| 443 |
| Alternator Belt Tension | 1/4’’ (6,35 mm) movement | p. 198 |
