New Holland DC70, DC80, DC100 & LGP Crawler Dozer Service Manual
320 pages · Publication 75131001
Added to your cart. View cart
What's inside
From the manual's own table of contents: 6 sections, 110 entries. See sample pages (PDF, 474 KB)
GENERALITIES7 topics
- SAFETY RULES
- TECHNICAL DATA TABLES
- GENERAL INSTRUCTIONS
- DIAGNOSTIC CHECKS
- UNITS OF MEASURE
- CLASSIFICATION OF STANDARD PARTS FOR TORQUE DETERMINATION
- I - VIII
TRANSMISSION28 topics
- GENERAL DESCRIPTION
- Adjusting the travelling speed
- Up shifting
- Choosing the travelling direction
- Forward and backward travelling
- Steering
- Reversing
- Working brake
- Parking brake
- INSTALLATION
- TROUBLESHOOTING
- HYDRAULIC MOTOR
- Disassembly
- Reassembly
- Hydraulic two-position control
- TRAVELLING HYDRAULIC PUMP
- Disassembly/Reassembly
- Tightening torques
- Adjustment instructions
- Machine towing
- TRAVELLING CHARGING AND SERVONTROLS GEAR PUMP
- Uncoupling
- Pump overhaul
- Flow testing
- LEFT CONTROL TRAVELLING JOYSTICK STD
- Technical data
- Friction for left control travelling joystick (optional)
- PROPORTIONAL PRESSURE REDUCTION VALVE
FINAL DRIVES AND SPROCKET16 topics
- DESCRIPTION
- INSPECTION OF SPROCKETS
- GEARBOX DISASSEMBLY
- Description of the components
- Lifetime seal check
- Instructions for the installation of the half seals
- Brake check
- Installation of the gearbox to the machine
- Connection of the brake pipe
- Gearbox lubrication
- Oil filling
- Start up
- Maintenance
- Oil replacement and routine checks
- Longitudinal section
- FEATURES AND DATA
UNDERCARRIAGE15 topics
- TROUBLESHOOTING OF MAJOR MALFUNCTIONS
- TRACK CHAINS
- Disassembly track chains
- Inspection of undercarriage components
- Replacement of a damaged link
- TRACK RELEASE AND ADJUSTER MECHANISM
- Inspection and adjustment of track chain tension
- TRACK IDLER WHEELS
- Removal
- Overhaul
- TRACK BOTTOM ROLLERS
- Disassembly of bottom rollers with one or two edges
- TRACK CARRIER ROLLERS
- LUBRICATION OF ROLLERS AND TRACK IDLER WHEELS
- SPECIFICATIONS AND DATA
HYDRAULIC SYSTEM FOR BULLDOZER EQUIPMENT26 topics
- DESCRIPTION AND OPERATING OF HYDRAULIC SYSTEM
- EXHAUST SYSTEM
- LIFTING CYLINDER SYSTEM
- ANGLE CYLINDER SYSTEM
- TILT CYLINDER SYSTEM
- DISTRIBUTOR
- PUMP
- EQUIPMENT OIL FILTER
- Changing the hydraulic oil filters
- HYDRAULIC OIL TANK AND OIL FILTERS
- Removal of the tanks: hydraulic oil tank, fuel tank
- SERVOCONTROL SYSTEM
- SOLENOID VALVES
- Power operation solenoid valve
- Inclination blade solenoid valve
- Floating blade solenoid valve
- C-FRAME, BLADE AND CYLINDERS
- C-frame
- Control cylinders for blade raising-lowering
- Floating function
- Blade angle cylinders
- Blade tilt control cylinder
- Ripper equipment (optional)
- Ripper (optional)
- Ripper cylinder
- Rear hydraulic function (optional)
ELECTRICAL SYSTEM12 topics
- MAIN PARTS LOCATION
- ELECTRICAL SYSTEM DIAGRAM
- FUSES
- Fuse card
- Solenoid valve configuration
- Relay configuration
- MICROPROCESSOR MC7
- Electronic control unit tasks
- Setting of the electronic control unit (selflearning)
- CONTROL PANEL
- ROTATION ANGLE SENSOR WITH NO CONTACT
- ENGINE REVOLUTION SENSOR
Inside this manual
Real pages from this service manual (320 pages). Open the sample pages (PDF, 473 KB)
- Specifications, page 47: TECHNICAL DATA TABLES
- Diagram, page 151: 2.13 HYDRAULIC SCHEMATIC
- Repair procedure, page 243: UNDERCARRIAGE
- Color page: ELECTRICAL SYSTEM
- Color page: HYDRAULIC SYSTEM FOR BULLDOZER EQUIPMENT
- Foldout diagram: ELECTRICAL SYSTEM
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the DC70, DC80 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
Added to your cart. View cart
This is a service manual
Here's how it compares to the other manual types.
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, 320 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).