Case 621F, 721F Tier 4B Wheel Loader Service Manual
2,713 pages · Publication 47387703
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- Models
- 621F, 721F Tier 4B
- Manual type
- Service Manual
- Pages
- 2,713
- Publication
- 47387703
- Condition
- Brand new
What's inside
From the manual's own table of contents: 270 topics. See sample pages (PDF, 534 KB)
- Safety rules
- Personal safety
- Basic instructions - Important notice regarding equipment servicing
- Basic instructions - How to use the maintenance standard and precautions
- Basic instructions - Precaution for disassembly and assembly
- Basic instructions - Electrical equipment precautions
- Consumables - Biodiesel Fuel
- Hydraulic contamination
- Product identification - Machine orientation
- Product identification
- Engine and crankcase
- Air cleaners and lines
- Selective Catalytic Reduction (SCR) exhaust treatment
- Engine cooling system
- Fan and drive
- Aftercooler
- Engine lubrication system
- General specification (*)
- Remove (*)
- Install (*)
- Test
- Dynamic description
- Remove
- Install
Show all 270 topics
- Pressure test
- Testing
- Powershift transmission
- Powershift transmission external controls
- Powershift transmission internal components
- Torque converter
- Special tools (*)
- Torque
- General specification
- Visual inspection
- Dynamic description – Transmission Clutch Calibration
- Disassemble - Forward clutch KV - 621F (*)
- Assemble - Forward clutch KV - 621F (*)
- Disassemble - Reverse clutch KR - 621F
- Assemble - Reverse clutch KR - 621F (*)
- Disassemble - First gear clutch K1 - 621F (*)
- Assemble - First gear clutch K1 – 621F (*)
- Disassemble - Second gear clutch K2 - 621F (*)
- Assemble - Second gear clutch K2 - 621F (*)
- Disassemble - Third gear clutch K3 - 621F (*)
- Assemble - Third gear clutch K3 - 621F (*)
- Disassemble - Fourth gear clutch K4 - 621F (*)
- Assemble - Fourth gear clutch K4 - 621F (*)
- Disassemble - Input shaft - 621F (*)
- Assemble - Input shaft - 621F (*)
- Disassemble - Output shaft - 621F (*)
- Assemble - Output shaft - 621F (*)
- Disassemble - Forward clutch KV - 4 and 5 Speed - 721F (*)
- Assemble - Forward clutch KV - 4 and 5 Speed - 721F (*)
- Disassemble - Reverse clutch KR - 4 and 5 Speed - 721F (*)
- Assemble - Reverse clutch KR - 4 and 5 Speed - 721F (*)
- Disassemble - First gear clutch K1 - 4 and 5 Speed - 721F (*)
- Assemble - First gear clutch K1 - 4 and 5 Speed - 721F (*)
- Disassemble - Second gear clutch K2 - 4 and 5 Speed - 721F (*)
- Assemble - Second gear clutch K2 - 4 and 5 Speed - 721F (*)
- Disassemble - Third gear clutch K3 - 4 and 5 Speed – 721F (*)
- Assemble - Third gear clutch K3 - 4 and 5 Speed - 721F (*)
- Remove - Front Drive Shaft
- Install - Front Drive Shaft
- Remove - Center Drive Shaft
- Install - Center Drive Shaft
- Remove - Center bearing
- Install - Center Bearing
- Remove - Rear Drive Shaft
- Install - Rear Drive Shaft
- Remove - Engine to transmission drive shaft
- Install - Engine to transmission drive shaft
- Disassemble - Universal joints
- Assemble - Universal joints
- Lubricate
- Visual inspection - Models MT-L 3065 II / MT-L 3075 II (*)
- Visual inspection - Models MT-L 3085 II / MT–L 3095 II (*)
- Disassemble - D-1200 Open differential (*)
- Assemble - D-1200 Open Differential (*)
- Disassemble - D-2400 Open Differential (*)
- Assemble - D-2400 Open Differential (*)
- Assemble - DL-2400
- Disassemble - Models MT-L 3065 II / MT-L 3075 II
- Visual inspection - Models MT-L 3065 II / MT-L 3075 II
- Special tools
- Service limits - Models MT-L 3065 II / MT-L 3075 II
- Service limits - Models MT-L 3085 II (*)
- Component localization
- Component identification
- Exploded view
- Bleed
- Check - Brake modulation pressure
- Check - Service brake system performance (stored energy)
- Leakage test - Models MT-L 3065 II / MT–L 3075 II
- Disassemble
- Inspect
- Assemble
- Hydraulic systems
- Reservoir, cooler, and filters
- Variable displacement pump
- Pilot system
- Hydraulic fan drive cooling system
- Hydraulic hand control
- Front loader hydraulic system control
- Front loader arm hydraulic system
- Front loader bucket hydraulic system
- Tool quick coupler hydraulic system
- Overview - Hydraulic component locations (*)
- Hydraulic schematic frame 01 - 621F (*)
- Hydraulic schematic frame 01 - 721F (*)
- Component localization - Test ports (*)
- Cleaning
- Decontaminating
- Service instruction - Troubleshooting
- Service instruction - Testing and adjusting the pump differential pressure (*)
- Service instruction - Testing and adjusting the high pressure pump differential pressure (*)
- Service instruction - Testing and adjusting the low pressure pump differential pressure (*)
- Service instruction - High pressure pump flow test (*)
- Prepare
- General specification - Loader control valve
- Exploded view - Loader control valve (*)
- Service instruction - Testing and adjusting the circuit relief valves (*)
- Remove - Loader control valve (*)
- Install - Loader control valve (*)
- Disassemble - Loader control valve (*)
- Inspect - Loader control valve
- Assemble - Loader control valve (*)
- General specification - Accumulator
- Torque - Accumulator
- Special tools - Accumulator
- Component identification - Accumulator
- Service instruction - Testing and adjusting the loader limit pressure (*)
- Service instruction - Testing and adjusting the loader pump cutoff pressure
- Remove - Bushing
- Install - Bushing
- Adjust
- Remove - Z-Bar loader
- Install - Z-Bar loader
- Exploded view - Coupling locking valve
- Service instruction - Coupling locking valve
- Disassemble - Coupling locking valve
- Assemble - Coupling locking valve
- Exploded view - Loader frame
- Remove - Loader frame
- Install - Loader frame
- Steering control
- Hydraulic control components
- Cylinders
- Auxiliary steering
- Component identification (*)
- Remove - Steering valve PVG32 and PVFC (*)
- Install - Steering valve PVG32 and PVFC (*)
- Service instruction (*)
- Adjust (*)
- Test - Leaks
- Exploded view - Expansion valve, Evaporator/Heater core, Heater valve, Blowers
- Service instruction
- Service instruction - Safety procedures
- Remove - Compressor
- Install - Compressor
- Remove - Expansion valve, Evaporator/Heater core, Heater valve, Blowers
- Install - Expansion valve, Evaporator/Heater core, Heater valve, Blowers
- Remove - Condenser and receiver drier
- Install - Condenser and receiver drier
- Harnesses and connectors
- Alternator
- Battery
- Fuel tank system
- Selective Catalytic Reduction (SCR) electrical system
- Exhaust Gas Recirculation (EGR) electrical system
- Engine cooling system
- Cab brake controls
- Service brake electrical system
- Parking brake electrical system
- Cab controls
- Cab Heating, Ventilation, and Air-Conditioning (HVAC) controls
- Heating, Ventilation, and Air-Conditioning (HVAC) control system
- Steering control system
- Camera
- Wiper and washer system
- Cab lighting
- Warning indicators, alarms, and instruments
- Electrical schematic sheet 01 – Index \ Wire information
- Electrical schematic sheet 02 – Schematic connector list
- Electrical schematic sheet 03 - Schematic connector list
- Electrical schematic sheet 04 - Cold start , Power distribution, Ignition switch
- Electrical schematic sheet 05 – Engine Control
- Electrical schematic sheet 06 – Lighting 1, Backup Alarm
- Electrical schematic sheet 07 – Lighting 2
- Electrical schematic sheet 08 – Transmission Controls
- Electrical schematic sheet 09 – Instrument Cluster
- Electrical schematic sheet 10 – Machine controls
- Electrical schematic sheet 11 – Secondary steering, Hood lift, Wiper/Washer system
- Electrical schematic sheet 12 – HVAC, Air seat, Radio power/converter
- Electrical schematic sheet 13 - Joystick steering
- Electrical schematic sheet 14 – Standard HVAC
- Electrical schematic sheet 15
- Electrical schematic sheet 16
- Electrical schematic sheet 17
- Electrical schematic sheet 18
- Electrical schematic sheet 19
- Electrical schematic sheet 20
- Electrical schematic sheet 21
- Electrical schematic sheet 22
- Electrical schematic sheet 23
- Electrical schematic sheet 24
- Electrical schematic sheet 25
- Electrical schematic sheet 26
- Electrical schematic sheet 27
- Electrical schematic sheet 28
- Electrical schematic sheet 29
- Electrical schematic sheet 30
- Electrical schematic sheet 31
- Check - Electrolyte Level
- Service instruction - Inspecting and Cleaning a Battery
- Charging
- Filter - Remove
- Filter - Install
- Filter - Remove – Filler neck screen of the supply tank
- Filter - Install – Filler neck screen of the supply tank
- Filter - Remove – Supply line screen
- Filter - Install – Supply line screen
- Dosing valve - Remove
- Dosing valve - Install
- Remove - Catalyst inlet temperature sensor (*)
- Install - Catalyst inlet temperature sensor (*)
- Remove – Catalyst inlet temperature sensor (*)
- Install – Catalyst inlet temperature sensor (*)
- Remove – Catalyst outlet temperature sensor (*)
- Install - Catalyst outlet temperature sensor (*)
- Remove Catalyst outlet Nitrogen Oxides (NOx) sensor (*)
- Install Catalyst outlet Nitrogen Oxides (NOx) sensor (*)
- Component identification - Electrical components of the Joystick Steering System
- Remove - Joystick steering system armrest
- Install - Joystick steering system armrest
- Testing - Secondary Steering Pressure Switch
- Testing - Secondary Steering Solenoid
- Testing Front Wiper
- Testing Rear Wiper
- Testing Front Washer
- Testing Wiper Cutout Relay
- 0000-Retrieving fault codes, Wheel Loaders
- 1314-Transmission Oil Temperature Above Normal
- 1316-Brake Pressure Too Low
- 1317-Steering Pressure Too Low
- 1318-Engine Coolant Temperature Above Normal
- 1319-Engine Coolant Temperature High - Critical
- 1323-Battery Voltage Too Low
- 1324-Battery Voltage High
- 1331-Electrical charging system voltage too low, critical
- 3005-(DTC 4B84)-Air filter clog or circuit failure [ECU]
- 3007-(DTC 1113)-Engine coolant temperature sensor voltage is higher than expected [ECU]
- 3008-Engine coolant temperature sensor voltage is lower than expected [ECU]
- 3010-(DTC 2474)-Intake manifold temperature sensor voltage is lower than expected [ECU]
- 3014-(DTC 4C84)-Air filter clog or circuit failure present for a long time [ECU]
- 3015-(DTC 1C15)-Fuel temperature sensor voltage is higher than expected [ECU]
- 3016-(DTC 2D15)-Fuel temperature sensor voltage is lower than expected [ECU]
- 3019-(DTC 1D64)-Intake manifold pressure sensor voltage is higher than expected [ECU]
- 3028-(DTC 26D3)-Oil pressure is too low [ECU]
- 3029-(DTC 18D3)-Oil pressure sensor voltage is higher than expected [ECU]
- 3030-(DTC 29D3)-Oil pressure sensor voltage is lower than expected [ECU]
- 3034-(DTC 11E3)-Oil temperature sensor voltage is higher than expected [ECU]
- 3035-(DTC 22E3)-Oil temperature sensor voltage is lower than expected [ECU]
- 3037-(DTC 2E64)-Intake manifold pressure sensor voltage is lower than expected [ECU]
- 3067-(DTC 6726)-Short circuit error of injector in cylinder 4 [ECU]
- 3071-(DTC 6626)-Short circuit error of injector in cylinder 2 [ECU]
- 3075-(DTC 6526)-Short circuit error of injector in cylinder 6 [ECU]
- 3079-(DTC 6426)-Short circuit error of injector in cylinder 3 [ECU]
- 3083-(DTC 6326)-Short circuit in injector 5 [ECU]
- 3088-(DTC 4512)-Crankshaft speed sensor values are not plausible [ECU]
- Overview
Inside this manual
Real pages from this service manual (2,713 pages). Open the sample pages (PDF, 533 KB)
- Specifications, page 867: Rear axle system - Rear bevel gear set and differential
- Diagram, page 1,581: Electrical systems - Harnesses and connectors
- Troubleshooting, page 2,001: 1323-Battery Voltage Too Low
- Color page: Engine - Selective Catalytic Reduction (SCR) exhaust treatment
- Color page: Hydraulic systems - Hydraulic systems
- Foldout diagram (color): Hydraulic systems - Hydraulic systems
Other manuals for this machine
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This is a service manual
Here's how it compares to the other manual types.
This manual
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 2,713 pages
Quantity one is the manual described above.
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Binder not included
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Other editions and similar models
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