Document overview
Digital Workshop Manual documentation for model DEUTZ FAHR 6125 C TTV → ZKDLT10200TD10001 from the Series 6 C TTV (STAGE 4) family. Language: English; 1,062 pages.
The corresponding English table of contents contains 45 sections and 415 individual topics.
Main sections included
- Introduction
- Safety
- Technical characteristics
- Calibrations and electronic diagnosis
- Method of intervention
- Wiring diagrams
- Service Info
Document details
- Brand: DEUTZ FAHR
- Family: Series 6 C TTV (STAGE 4)
- Model: 6125 C TTV
- Starting serial number: ZKDLT10200TD10001
- Document type: Workshop Manual
- Language: English
- Pages: 1,062
- File size: 333.15 MiB
- Format: Digital PDF download
Compatibility
Before purchasing, verify that your machine model and reference code match DEUTZ FAHR 6125 C TTV → ZKDLT10200TD10001.
Complete table of contents
Introduction
- Tightening torques
- Pump tightening torques
- Wheel nut/screw tightening torques
- Tightening torques for nuts and bolts of electrical connections
- Installation of solenoid valves and cartridge valves
- Installation of quick couplers
- Units of measurement and conversion factors
Safety
Preface
- Important notes concerning safety
Important safety information
- Recognising hazards
- Indications for persons in contact with the tractor
Safety rules
- Risks during tractor preparation
- Risks during maintenance
- Work on machine systems
- Special disassembly/assembly/inspection procedures
Safety pictograms
- Replacing safety pictograms
Environmental risks
- Hazards associated with the operating environment
Technical characteristics
Engine
- Technical data: cylinder block
- Technical data: crankshaft
- Technical data: pistons – piston rings
- Technical data: rockers
- Camshaft technical data
- Technical data: timing system gears
- Technical data: counter-rotating masses
- Technical data and dimensions: valves – valve springs
- Technical data and dimensions: heads – valve guides – valve seats
- Technical data, rockers – tappets
Engine accessories
- Complete cooling pack
- Coolant radiator
- Expansion tank
- Intercooler
- Air filter
- Diesel fuel tank
- Diesel radiator
- Starter motor
- DOC catalytic converter
- AdBlue® technical characteristics
- AdBlue pump
- AdBlue injector
- AdBlue valve
- AdBlue tank
- AdBlue float
- Exhaust pipe
- Air compressor
Transmission
- Continuously variable transmission
- Mechanical variable ratio transmission
- Cross section of transmission
- “Input” clutch
- Variable ratio transmission unit
- Shuttle unit
- Range change
- Pump carrier
Rear axle
- Rear wheel carrier
- Park brake unit
- Rear differential
Front axle
- Front axle 4 WD
- Disc type front differential lock (ASM)
- Planetary reduction gearbox
Bodywork – Cab – Platform
- External views of the tractor
- Main technical data
- Dimensions and weights of the tractor
- Viste interni cabina
- Front console and cab pillars
- Instrument panel
- Left hand console
- Right hand console, “configuration version 1”
- Right hand console, “configuration version 2”
- Roof panel
- Air conditioning system
- Air conditioning system – Charging
- Air conditioning compressor
- Air conditioning condenser
Hydraulic system
- Location of hydraulic system components
- Location of hydraulic accumulators
- 45 cc variable displacement pump
- Fixed gear pump (32 cc)
- Fixed gear pump (16 cc)
- Fixed gear pump (11 cc)
- Oil delivery line filter
- Transmission oil radiator
- Bypass thermostat valve
- Braking system
- Park Brake system
- Park Brake valve
- Power steering 80 -160cc
- APS 115-240cc hydraulic steering pump
- 70-170 cc LSRM hydraulic steering unit
- Mechanical spools valve
- Front axle suspension
- Electrohydraulic gear control unit
- Transmission hydraulic circuit, base version
- Base LS hydraulic circuit.
- Full house LS hydraulic circuit.
- Full house LS hydraulic circuit 1.
- Transmission hydraulic circuit, base version
- Full house LS hydraulic circuit 2.
- Transmission hydraulic circuit, optional version
- Full house transmission hydraulic circuit.
Front PTO
- Front PTO
Front lift
- Front lift
Rear lift
- Rear lift
- Rear 3-point linkage
Calibrations and electronic diagnosis
- ECUs
Diagnostic tools
- D-Tech and diagnostic ports
- D-TECH App
Commissioning and calibrating the tractor
- Commissioning procedure (EOL)
- Reset ECU (MVCU + GTECU + SVCU)
- Distributor configuration
- Maximum vehicle speed
- Tyre type
- Language
- Units of measurement
- Rapid steer system (SDD)
- Front power take-off (PTO)
- PTOSyncro
- Automatic A/C system
- Engine brake (HEB)
- eVISCO
- Agrosky
- 4WD
- ISO 11786
- Pneumatic trailer brake
- Hydraulic trailer braking
- Iso 11783
- iMonitor
- Stoll
- ASM (Automatic Steering Management)
- Mechanical diverter
- Setting the distributors to neutral position
- eTCV parameters configuration
- Hand brake position calibration
- Rear hitch position calibration
- Steering angle calibration
- Front suspension calibration
- IMU calibration
- PTO calibration
- Work reverse clutch calibration
- Hydrostatic unit calibration
ECU alarms
- SDF Severity of alarms
- ECU ALARMS
Software management
- ECUs firmware update
Method of intervention
- Tightening procedure for engine components
- Engine components removal/refitting sequence
B0 – Engine
- Preliminary operations before removing engine from vehicle
- Power take off gear backlash adjustment
- Engine flywheel
- Engine block-gearbox connector flange
- Blow-by oil vapour recovery pipe
- Turbocharger oil pipes
- Turbocharger
- EGR exhaust gas recirculation pipe
- Exhaust manifold
- Thermostat valve
- Checking the thermostat valve
- EGR exhaust gas cooling pipes
- EGR manifold
- Disassembly of the EGR manifold
- EGR valve
- Blow-by filter
- Coolant manifold
- Intake manifold
- Oil filter
- Oil heat exchanger
- Engine coolant pump
- Electro-injectors and common rail
- Cylinder head covers
- Blow-by oil vapour pipe
- Pushrods
- Cylinder heads
- Disassembling the cylinder heads
- Crankshaft pulley and tone wheel
- Crankshaft pulley
- Power take off drive
- Front timing cover
- Rear flange
- Oil sump
- Oil pump
- Counter-rotating masses
- Overhauling counter-rotating masses
- Intermediate gear and timing
- Disassembling pistons and connecting rods
- Crankshaft
- Cooling jets
- Cylinder sleeves
- Adjusting oil pump gear backlash
- Installing automatic belt tensioner
- Complete engine
- Aligning water pump and crankshaft pulleys
- Separating engine / transmission
- A/C compressor belt
- Ancillary utility belt
C0 – Engine accessories
- Alternator mount
- Transverse plate
- Mounting brackets
- Water radiator
- Replacing the coolant
- Expansion tank
- Fan
- Air filter
- Intercooler
- Oil radiator
- Diesel radiator
- Bleeding the fuel circuit
- Manual fuel pump
- High pressure fuel pump
- Fuel pump
- Fuel prefilter
- Fuel filter
- Filter mounting plate
- High pressure fuel pump
- Diesel fuel tank
- Fuel and filter and prefilter
- Glow plug
- Preheat relay
- Starter motor
- Mounting brackets
- Exhaust pipe
- DOC exhaust silencer
- DOC outlet side exhaust flange
- DOC inlet side exhaust flange
- DOC exhaust silencer
- Drain pipe
- Intermediate manifold
- AdBlue tank
- AdBlue pump
- Air compressor
- Power take off gear backlash adjustment
- Air conditioning compressor
D0 – Transmission
- Draining and filling the transmission oil
- Special tools
- Applying sealant
- Connector housing
- Separating the gearbox housing from the rear gearbox housing
- Front gearbox from its rear part
- Centre gearbox housing (CVT unit)
- INPUT clutch disc replacement
- INPUT unit
- INPUT unit disassembly
- Front gearbox casing cover
- Hydrostatic unit
- Hydrostatic unit pipes
- Front section of dual traction shaft (in clutch housing)
- Disassembling the front section of the dual traction shaft
- Rear section of 4WD shaft (in clutch housing) and tone sleeve
- Removing the tone sleeve
- Replacing the variator input shaft bearings
- Replacing the WORK and TRANSPORT clutch assemblies (with the intermediate casing installed)
- Variator unit input gear assembly
- Disassembling the variator input gear unit
- WORK and TRANSPORT clutch-planetary reduction gearbox assembly
- Planetary reduction gearbox for the WORK and TRANSPORT clutches
- Disassembling the WORK and TRANSPORT planetary reduction gearbox
- Disassembling the WORK and TRANSPORT clutches
- REVERSE clutch-planetary reduction unit
- Disassembling the REVERSE planetary reduction unit
- Hydraulic pump drive
- Disassembling the hydraulic pump drive unit
- Speed range gear shafts
- Electrohydraulic range gearbox
- Disassembling the electrohydraulic range gearbox
- Electrohydraulic range gearbox position sensor and relative mount
- Disassembling the electrohydraulic range gearbox position sensor mount
- Disassembling the idler gear
- PTO engagement clutch
- Disassembling PTO engagement clutch
- PTO casing
- Disassembling the PTO casing
- PTO drive shaft
- PTO speed selection lever
- PTO driven shaft
- Disassembling the PTO driven shaft
- Removing the groundspeed PTO cover
- Differential pinion
- Disassembling the differential pinion
- Disassembling the HD (Heavy Duty) range gear
- Dual traction output shaft
- Disassembling the dual traction output shaft
- Dual traction output shaft transfer idler gear
- Dual traction clutch
- Disassembling the dual traction clutch
- Centre section of dual traction shaft (in variable transmission unit)
- Disassembling the centre section of the dual traction shaft
- Positioning and shimming of rear bevel gear set and differential
E0 – Rear axle
- Bleeding the braking system
- Rear axle – Wheel carrier
- Wheel mount disassembly
- Park brake unit
- Disassembling the park brake unit
- Rear differential
- Rear differential crown wheel
- Disassembling the rear differential case
- Controlling and adjusting the clearance of the teeth on the pinion and the differential crown wheel
F0 – Front axle
- Dual traction shaft (DT)
- Support with front axle
- Adjusting front carrier – engine alignment
- Steering bar/tie-rod
- Front axle
- Front axle adjusting endfloat
- Steering cylinders
- Removing steering cylinders
- Suspended axle pivot bracket
- Differential assembly
- Disassembly of the differential locking device
- Disassembling the differential assembly – pinion
- Adjusting differential preload and pinion-crown wheel backlash
- Pinion positioning and preload adjustment
- Planetary reduction gearbox
- Disassembly of the planetary reduction gearbox
- Steering knuckle casing and axle shaft
- Adjustment of steering knuckle casing and axle shaft
- Front axle brake discs
G0 – Bodywork – Cab – Platform
- Cab
- Cab access steps
- Empty and charge the air conditioning system
- A/C unit
- Air conditioner evaporator
- Heating radiator – Version with air conditioning
- Motor with fans
- Expansion valve
- Anti-icing sensor
- Air conditioning compressor
- Air conditioning condenser
- Disassembling the air conditioning condenser
- Dehydrator filter
- Engine hood
- Lower hood guard
- Battery mount
- Front mudguards
- Cab mat
- Windscreen wiper motor
- Screenwash fluid reservoir
- Instrument panel
- Instrument cluster
- Anti-pollen filter
- External rear-view mirrors
- Seat
- Passenger seat
- Right hand console
- Left hand console
- Front pillar trim covers
- Hydraulic distributor controls
- Park brake control
- Roof panel
- Throttle pedal
- Brake pedals
- Clutch pedal
- Steering wheel
- Steering column
- Brake master cylinders
- Roof hatch
H0 – Hydraulic system
- Load Sensing (LS) ancillary pump
- Lubrication pump
- Disassembling the lubrication pump
- Power steering pump
- Supplementary pump
- Hydrostatic steering (orbitrol)
- Rear auxiliary utility distributors and rear lift
- Front axle suspension solenoid valve block
- Trailer braking valve
L0 – Electrical system
- Engine wiring loom
- Charge pressure and air temperature sensor
- Electro-injector wiring loom
- Coolant temperature sensor
- Crankshaft speed sensor
- Preheat relay
- Camshaft timing sensor
- Engine oil pressure switch
- Engine oil temperature sensor
- Fuel pressure and temperature sensor
- Fuel pressure sensor
- Water in fuel sensor
R0 – Rear lift
- Complete rear lift
- Disassembling the lift assembly (SAC)
- Rear lift cylinder
- Rear lift draft sensor
- Bushes
- 3-point linkage
S0 – Wheels
- Front Wheels
- Rear wheel
V0 – Ballast – towing hitches
- Rear tow hitch
Wiring diagrams
Wiring harnesses
- Wiring looms
- W-TECH – ELECTRICAL SECTION
Service Info
A0 – TRACTOR
- Diagnostics 2026 subscription
- SERVICE NEWS – TTV SERIES – CRUISE CONTROL BEHAVIOUR
- After-sales 2026 subscription
- SERVICE NEWS RESEARCH GUIDE
- Diagnostics 2025 subscription
- After-sales 2025 subscription
- Diagnostics 2024 subscription
- After-sales 2024 subscription
C0 – ENGINE ACCESSORIES
- Diagnostic protocol – AdBlue – Float level unit
- Filter and prefilter tool p/n 5.9035.865.0
- SCR AREA DAMAGED SENSORS
D0 – TRANSMISSION
- Wrong dimension on RPTO stub shaft 21 splines 1-3/8″
- PINION NUT LOOSENING
F0 – FRONT AXLE
- 4WD CARDAN SHAFT WEAR
- Bevel gear set loosing screws
- Missing lubrification point of front axle
H0 – HYDRAULIC AND PNEUMATIC SYSTEM|
- SERVICE NEWS – Front suspension malfunction
- Hydraulic CUNA trailer braking kit (ITALY)
- Single connection hydraulic braking kit availability update – only for EUROPEAN market
- Leakage from power beyond pipe fitting 6C PS-TTV-RVSHIFT Stage 5 (PT454)
- Leakage from brake valve and distributor pipe
L0 – ELECTRIC AL SYSTEM
- SERVICE NEWS – Software package release 2026-02
- FAS SENSOR BRACKET BENT
- Front Loader Joystick controllability 6C/6.4 TTV-RVSHIFT stage 5
- SerDia4.0
- iMonitor software HORIZON 5.02
- Regeneration start issue
- M709-520375 FMI15 error code on TCD 3.6 Stage 5 (6C, 6C TTV, 6C RVSHIFT stage 5)
- M83 error code on TCD 3.6 Stage 5 (6C, 6C TTV, 6C RVSHIFT stage 5)
- iMonitor SW upgrade
- PTO switch not working
V1 – AFTERMARKET KITS
- SERVICE NEWS – Antenna Predisposition
- Check correct installation of braking KIT
- Instructions for kit aftersales
