Volume 1 provides repair information:

• - gearboxes
• - rear axle reducer
• - heating and ventilation systems
• - electrical equipment

Contents

Gearbox GR 871

• Main gearbox
• Shafts
• Synchronizer
• Planetary gear
• Lubrication system
• How the gearbox works
• Main gearbox
• Planetary gearbox
• Management system

Gearbox device GR 880

• Main gearbox
• Synchronizer - main gearbox
• First gear syncronizer (double sync)
• Planetary gear
• Synchronizer - planetary box
• Management
• Lubrication system
• Main gearbox
• Planetary gear
• Transmission principle
• Main gearbox
• Planetary gear shifting
• Management system

Repair of the GR 880 gearbox

• Specifications
• Main gearbox
• Planetary gearbox (planetary gearbox)
• EGR 880 power take-off
• EGR 881 power take-off
• EGR 882 power take-off
• Main gearbox
• Transmission housing - disassembly
• Gear shift housing disassembly
• Drive shaft - disassembly
• Intermediate shaft - disassembly
• Main shaft disassembly
• Synchronizers
• Synchronizer - check
• Synchronizer - assembly
• Main shaft - assembly
• Intermediate shaft assembly
• Drive shaft - assembly
• Gearshift housing - assembly
• Adjustment (old style plunger)
• Transmission housing - assembly
• Measuring the axial clearance of the main and intermediate shafts
• Planetary gearbox (planetary gearbox)
• Extraction from the main gearbox (main gearbox is installed on the universal bench)
• Planetary housing - disassembly
• Output shaft - disassembly
• Synchronizer - disassembly
• Synchronizer - assembly
• Output shaft - assembly
• Planetary gear housing - assembly
• Installing the planetary gearbox to the main gearbox
• Shift pneumatic cylinder - assembly
• Output shaft seal replacement
• Speedometer drive
• Protection against exceeding the maximum permissible speed
• EGR880 power take-off
• EGR 881 power take-off
• EGR 882 power take-off
• Disassembly
• Build

R 770 rear axle reduction gear repair

• Repair
• Disassembly
• Solid body blocker
• Collapsible body bollard
• Disassembly and assembly of the pinion assembly
• Build
• Bearing preload adjustment
• Differential
• Dismantling
• Build
• Regulation with special equipment
• Adjusting the side play of the teeth engagement
• Differential bearing drag torque adjustment
• Differential lock actuator assembly
• Main technical characteristics
• Lubrication system
• Tightening torques for threaded connections, (Nm)

Heater WEBASTO DBW 2010

• Specifications
• Heating system design
• Main units
• Heater start
• Stop
• Heater installation
• GPR Trucks
• Trucks T
• Cooling system connection
• Trucks GPR 113
• Trucks GPR 93
• Trucks Т 113
• Trucks T 93
• Trucks R 143
• Trucks T 143
• Fuel connection
• Heater electrical connection
• Heater troubleshooting
• Check and adjust
• Starting candles
• Fuel pressure
• Adjusting the amount of CO2 in the exhaust gases of the heater

Heating and ventilation

• Specifications
• Heating and ventilation
• Cab heater
• Recirculation
• Air conditioner
• Heater fan
• Filter
• Filter replacement
• Removing the cab covers
• Removing the fan resistance
• Dismantling the fan
• Dismantling the heat exchanger
• Dismantling the evaporator
• Replacing controls and cables
• Replacing the temperature control cable
• Replacing the air distributor cable
• Replacing the cam and damper levers
• Recirculation flap motor
• Withdrawal
• Replacing the throttle cable
• Installing the positioning motor
• Installing the evaporator
• Heat exchanger installation
• Fan installation
• Fan resistance
• Cab covers
• Air conditioner
• Device
• How the system works
• Air conditioning repair
• Service valves
• Draining refrigerant
• Vacuuming
• Charging the system with refrigerant
• System maintenance
• Troubleshooting
• Dismantling the compressor
• Compressor valve disc
• Magnetic compressor clutch
• Shaft seal
• Installing the shaft seal rings
• Installing the magnetic coupling
• Valve disc installation
• Compressor installation
• Removing the condenser
• Installing the condenser

Electrical equipment

Technical data

• Fuses
• Relay
• Installation wires
• Main components and assemblies
• Central switchgear
• Fuses
• Relay
• Installing an additional relay
• Wires and connectors
• Wiring
• Sealed connectors
• Connectors
• Wires
• Accounting for the power consumed by additional consumers
• Selection of fuses
• Safety precautions when working with electronic blocks and elements
• Sensors and their purpose
• Coolant level sensor
• Coolant temperature sensor
• Brake pressure sensor
• Oil pressure sensor
• Speed ??sensors (tachograph)
• Pressure sensors
• Solenoid valve (37A)
• Repair of the solenoid valve
• Ignition switch
• Lighting
• Headlights
• Headlight adjustment device
• Headlight adjustment
• Lever switch
• Headlights
• Taillights
• Direction indicators and hazard warning lights
• Stop signals
• Cab headlights
• Sound signal
• Fan and air conditioner
• Windshield wiper motor
• Dismantling
• Replacing the motor brushes
• Replacing the rotor bearings
• Build
• Replacing the wiper motor
• Windshield wipers and headlight washers
• Washer pumps
• Replacing the washer pumps
• Power windows
• Removing the door panel
• Emergency window opening
• Central locking
• Fuel gauge
• Air filter clogging indicator
• Vehicle air dryer and heater connection
• Battery heater
• Fuel heater

Wiring diagrams

• Arrangement of electrical equipment elements on diagrams
• Wire marking
• Lamps used in lighting fixtures
• Layout of electrical equipment
• Wiring Diagrams
• Cab elements
• Radiator grille mounting (streamline cab)
• Cabin structure
• Front cab structure
• Cab floor
• Door lock
• Door parts
• Cab suspension
• Cab lock latch
• Cab heater
• Bumper
• Frame 4x2 F800, F950, F954
• Door structure