This is the compiled Caterpillar SIS repair set for the 267B, 277B and 287B Multi Terrain Loaders (serial prefixes 267B CYC00001-Up, 277B/287B MDH00001-Up) with the Cat 3044C engine. You get the core factory modules: Specifications (RENR4885), Systems Operation (RENR4886), Testing and Adjusting (RENR4887) and the Disassembly and Assembly books (RENR4883/4884/4888), plus hydraulic and electrical schematics with harness connector locations. These machines are diagnosed with a gauge, not a scan tool, and this set prints the numbers you test against: main relief, line reliefs, pilot pressure, accumulator charge and charge pump flow. It also covers the hydrostatic drive pump and motors, final drives, rubber track undercarriage, cooling, fuel injection and the cab. Sections carry Cat publication dates from 2004 to 2013.
What's Inside This Repair Manual
| System | Pages | Key Topics |
|---|
| Air Inlet and Exhaust System | 2-58 | Turbocharger, Inlet and Exhaust Manifolds, Air Cleaner |
| Basic Engine | 59-479 | Cat 3044C Engine, Cylinder Head, Crankshaft, Pistons, Flywheel |
| Cooling System | 480-595 | Water Pump, Thermostat, Radiator, Hydraulic Fan Motor |
| Electrical and Starting System | 596-1728 | Alternator, Starting System, Batteries, Machine Security System, Product Link, EquipmentManager, Air Conditioning R134a |
| Engine Arrangement | 1729-1811 | Engine Mounting and Arrangement |
| Frame and Body | 1812-1830 | Frame, Body Panels |
| Fuel System | 1831-1944 | Injection Pump, Injectors, Fuel Filter, Priming |
| Hydraulic System | 1945-2418 | Main Relief Valve Test and Adjust, Line Relief Valve Test and Adjust, Pilot System Pressure Test, Pump Flow Test, Accumulator Test and Charge, Troubleshooting |
| Implements | 2419-2445 | Loader Linkage, Work Tool Mounting |
| Lubrication System | 2446-2511 | Engine Oil Pump, Oil Filter, Oil Relief Valve |
| Machine Arrangement | 2512-2524 | Machine Arrangement and Layout |
| Operator Station | 2525-3167 | Cab, Controls, Air Conditioning, Seat |
| Power Train | 3168-3462 | Hydrostatic Drive Pump, Drive Motors, Final Drives |
| Service Equipment and Supplies | 3463-3481 | Service Tooling and Supplies |
| Undercarriage | 3482-3597 | Rubber Track, Idlers, Rollers, Track Tension |
| Work Tools | 3598-3601 | Work Tool Hydraulics and Mounting |
| Torque Specifications | 3602-3651 | Metric ISO Fasteners, English SAE Fasteners, Fittings, Plugs, Hose Clamps |
| Schematic | 3652-3734 | Multi Terrain Loader Hydraulic Schematics, Standard Electrical Schematics, Machine Harness Connector and Component Locations, Graphic Symbol Legends |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| 267B, 277B, 287B |
| Main relief valve, work tool (267B, 277B, 287B) | 23000 +/- 700 kPa (3336 +/- 102 psi) at high idle | p. 2089 |
| 287B HF XPS |
| Main relief valve, work tool, 287B HF XPS | 23000 +/- 1000 kPa (3336 +/- 145 psi) at high idle | p. 2089 |
| All Models |
| Line relief, lift cylinder head raise | 27600 +/- 700 kPa (4003 +/- 102 psi) | p. 2100 |
| Line relief, tilt circuit | 24500 +/- 700 kPa (3554 psi) and 27600 +/- 700 kPa (4003 psi) by position | |
| Pilot system pressure | 3200 +/- 200 kPa (465 +/- 29 psi) at low idle | p. 2128 |
| Pilot system pressure | 3800 +/- 350 kPa (551 +/- 51 psi) at high idle | |
| Pilot accumulator, properly charged | 900 +/- 100 kPa (130 +/- 15 psi) | |
| Charge pump minimum flow | 32 L/min (8.45 US gpm) at 18000 +/- 1000 kPa outlet, 2000 +/- 10 rpm, oil 45 +/- 5 C | p. 2139 |
| Main relief valve locknut and cap torque | 24 +/- 3 N m (18 +/- 2 lb ft) | |
| Serial prefixes | 267B CYC00001-Up; 277B and 287B MDH00001-Up | |
| Engine fitted | Caterpillar 3044C | |
| 267B, 277B, 287B standard |
| Line relief, auxiliary circuit (267B, 277B, 287B standard) | 24500 +/- 700 kPa (3554 psi) | |
| 287B HF XPS high flow |
| Line relief, auxiliary circuit, 287B HF XPS high flow | 31000 +/- 700 kPa (4496 psi) | |
