SMART HANDLING is where a 2706 / KT276 repair usually stalls. The overload limiter ties the load sensor, rotary angle sensor, safe load indicator and lowering control together, and the error tables include a not-calibrated code for the safe load indicator. This handbook covers that system from both sides, hydraulic and electrical, and lists the error codes it throws.
It also covers the Kohler KDI 2504TCR engine and the hydrostatic drive, with test protocols for the 20 km/h and 30 km/h versions. Brakes, steering modes, the third circuit, wiring diagrams, controller inputs and outputs, heating and central lubrication are in there too. It applies to machine model 418-02 from serial no. 418 02 0011.
Component names and installation positions help locate each sensor, valve and controller named in the diagrams and error tables.
What's Inside This Kramer 2706, KT276 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 1-25 | Manual Use, Symbols and Abbreviations, Repair Instructions, Tools, Tightening Torques, Safety |
| Engine | 26-79 | Engine Specifications, Lubrication, Fuel Injection, Intake and Exhaust, Engine Electronics, Exhaust After-Treatment, Starting and Monitoring |
| Cooling | 80-92 | Cooling Control, Temperature Sensors, Coolant Level Sensor, Oil Temperature Switch, Reversing Fan, Fan Solenoid Valves |
| Power Train | 93-129 | Hydrostatic Assemblies, Test Ports, Drive Test Protocols, Pressure Adjustment, Speed Adjustment, Troubleshooting, Drive Control |
| Brakes | 130-163 | Service Brake, Parking Brake, Brake Valves, Test Protocols, Brake Control, Hydraulic Trailer Brake, Trailer Coupling Safety |
| Steering | 164-192 | Steering Modes, Synchronisation, Test Protocols, Cylinder Adjustment, Steering Stops, Orbitrol, Steering Valves |
| Hydraulics - Work Hydraulics and Components | 193-244 | Functional Characteristics, Control Valve Sections, Accumulators, Tanks and Filters, Test Protocols, Pressure Adjustment, Component Torques |
| Hydraulics - Boom and Load Stabiliser | 245-329 | Boom Raising and Lowering, Load Stabiliser, Hose Burst Valves, Telescopic Cylinder, Tipping Cylinder Lock, Bucket Repositioning |
| Hydraulics - Third Circuit and Rear Hydraulics | 330-418 | Third Control Circuit, Reversing Valve, Rear Additional Circuit, Tipper Control, Auto Hitch, Sensor Plate Adjustment |
| Hydraulics - Overload Limiter (SMART Handling) | 419-453 | Overload Limiter, Load Sensor, Safe Load Indicator, Lifting Restrictions, Lowering Control, Hydraulic and Electrical Interfaces |
| Hydraulics - Hydraulic Diagrams | 454-485 | Total Hydraulic Circuits, Diagram Legends, Reversible Third Circuit, Rear Additional Circuits, Auto Hitch and Tipper, Trailer Brake |
| Electrical System - Fuses, Relays and Controllers | 486-526 | Fuses, Relays, CAN Signals, Traction Controller Inputs and Outputs, Cab Controller, Diesel Engine Controller |
| Electrical System - Telematics and Sockets | 527-566 | Telematics, Drive Interlock, 14-Pole Front Socket, 7-Pole Front Socket, 7-Pole Rear Socket, Attachment Control Relays |
| Electrical System - Joystick and Load Indicator | 567-596 | Joystick, Safe Load Indicator, Load Indicator Calibration, Load Sensor, Rotary Angle Sensor, Indicating Instrument, Camera Option |
| Electrical System - Wiring Diagrams | 597-840 | Engine Wiring, Traction Electronics, CAN Diagnostics, Power Distribution, Lighting, Attachment Circuits, Component Lists |
| Heating and Air Conditioning | 841-848 | Cab Heating, Blower, Heat Exchanger, Recirculated-Air Filter, Air-Conditioning Pressure Switch, Fan Pump and Motor |
| Component Names | 849-866 | Component Designations, Sensors, Control Units, Switches, Connectors, Relays, Solenoid Valves |
| Installation Positions | 867-908 | Hydraulic Component Locations, Electrical Component Locations, Valves, Sensors, Controllers, Connectors |
| Error Codes | 909-966 | Drive Interlock Codes, Safe Load Indicator Codes, Cab Electronics Codes, Traction Electronics Codes, Diesel Engine Codes |
| Central Lubrication System | 967-978 | Lubrication Pump, Electronic Control, Timing Settings, Pressure Limiting Valve, Progressive Distributor, Lubrication Points |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine | Kohler KDI 2504TCR NA V-Belt | p. 27 |
| Engine power (ISO14396) | 55.4 kW (74,3 hp) | p. 27 |
| Engine max. torque | 300 Nm (221.3 ft.lb) | p. 27 |
| Max. engine speed without load | approx. 2600 U/min (rpm) | p. 27 |
| Engine idling speed | approx. 950 U/min (rpm) | p. 27 |
| Engine oil working pressure | 4 bar (58.01 psi) | p. 36 |
| Common rail fuel pressure | 2000 bar (29007.55 psi) | p. 46 |
| Drive boost pressure (test protocol, 20 km/h) | 30-32 bar (435.10-464.10 psi) | p. 102 |
| Drive high pressure (test protocol, 20 km/h) | 460-490 bar (6671.74-7106.85 psi) | p. 102 |
| Trailer brake valve 140 (France) | 120 - 140 bar (1740.45 - 2030.53 psi) | p. 133 |
| Steering pressure at max. engine speed | 160-190 bar (2320.6-2755.72 psi) | p. 170 |
| 3rd control circuit section 067 flow | 80 l/min (21.10 US gpm) | p. 206 |
| Secondary valve 069, raise lift cylinder | 270-290 bar (3916-4206 psi) | p. 206 |
| Secondary valve 071, push-out ram extend | 190 - 210 bar (2755 - 3045 psi) | p. 206 |
| Pilot control pressure accumulator 077 gas filling | 10 bar (145 psi) | p. 211 |
| Load stabiliser pressure relief valve 079 | 280 bar (4061 psi) | p. 214 |
| Hydraulic oil tank drain plug torque | 35 Nm (25.8 ft.lb) | p. 231 |
| Hydraulic tank suction filter torque | 50 Nm (36.9 ft.lb) | p. 233 |
| Work hydraulics pressure at max. engine speed | 250-260 bar (3625.94-3770.98 psi) | p. 235 |
| Central lubrication working pressure | 280 bar (4061.1 psi) | p. 972 |
