New Holland Crawler Dozer DC150 service manual

Description New Holland Crawler Dozer DC150 service manual

New Holland Crawler Dozer DC150 Includes LGP pdf service & repair manual

Technical data, electrical diagrams, hydraulic schematics, specifications, troubleshooting, maintenance, disassembly, assembly, removal, installation and other information

MANUAL CONTENT:
GENERALITIES
SAFETY RULES
TABLE OF TECHNICAL DATA
GENERAL INSTRUCTIONS
TROUBLESHOOTING
UNITS OF MEASURE
CLASSIFICATION OF STANDARD COMPONENTS
TABLE OF TIGHTENING TORQUES

ENGINE
GENERAL SPECIFICATIONS OF SERIES B ENGINE
Engine main specifications
Engine identification
DESIGN FEATURES
SERVICEABILITY
MOUNTING OF ENGINE ON FRAME

TRANSMISSION
GENERAL DESCRIPTION
Transmission converter hydraulic diagram
Transmission housing/propeller shaft/torque converter
TROUBLESHOOTING
TESTS
Torque converter stall test
Delivery pressure test procedure
Transmission gearshifting electric control valve
PROCEDURES FOR THE REPAIR OF THE TORQUE CONVERTER
Removal
Reinstallation
Disassembly
Reassembly
PROCEDURES FOR THE REPAIR OF THE TRANSMISSION
Removal
Re Installation
Disassembly
Overhaul of forward the speed clutch
Overhaul of Third speed
Overhaul of reverse speed clutch
Modulating valves (Disassembly/Assembly)
Pressure relief valve (Disassembly/Assembly)

SPECIFICATIONS AND DATA
General data
Tightening torques (Torque converter)
Transmission Data (Transmission housing)
(Transmission clutches)
(Transmission clutch discs)
(First - Second - Third speed transmission clutch modulating valves)
(Lube oil pressure relief valve)
(Forward/reverse modulating valves)
(Transmission pressure relief and torque converter safety valve)
(Torque converter - transmission feeding pump)
(Oil filters)

FINAL DRIVES
GENERAL DESCRIPTION
Final drive (Exploded view and sectional view)
REPAIR PROCEDURES
Final drive (removal/disassembly)
Pulling the housing cover
Driven gear (bearing removal)
Driving gear shaft (bearing removal)
Description of installation of front seals (long life)
Final drive (assembly)
SPECIFICATIONS AND DATA
Final drive shaft and bearing fittings

BRAKES AND STEERING CLUTCHES
GENERAL DESCRIPTION OF THE CIRCUIT
Brakes and steering clutches system hydraulic diagram
Main components of the hydraulic system
Brakes and steering clutches feeding pump
Feeding valve block
Proportional solenoid valves block
Brake and clucthes Control valve
Brake pedal valve
Oil filters
Rear transmission (Gearbox side section)
Troubleshooting
Diagnosis on the display
TESTS
Pressure test of the brakes and steering clutches circuit
Brake pedal adjustment
Brake system pressure test
Feeding valve test and setting
Brake levers/steering levers calibration
REPAIR PROCEDURES
Brake pedal valve (removal/disassembly)
Steering clutches and brake control feeding pump
Brakes and steering clutches
Bevel gear unit (removal/disassembly)
Bevel ring gear removal
Bevel pinion removal
Bevel gear crown disassembly
Crown gear assembly
Bevel gear disassembly
Installation of bevel pinion
Re-installing the bevel gear crown
Re-installation of the bevel pinion
Setting the pinion-gear crown backlash
Steering/brakes control pilot valve
Removal
SPECIFICATIONS AND DATA
Bevel gear dimensions
Bevel gear reduction
Steering clutches
Brake pedal valve

UNDERCARRIAGE
GENERAL DESCRIPTION
Generalities
Main components
TROUBLESHOOTING
INSPECTIONS
Inspection and adjustment of track chains
Setting of the track tensioner pressure relief valve
REPAIR PROCEDURES
Track chain (removal/installation)
Replacing a damaged link and reinstallation
Idler (removal/installation/overhaul)
Track chain support rollers (removal/installation/overhaul)
Track chain bottom rollers (removal/installation/overhaul)
SPECIFICATIONS AND DATA
Idler
Sprockets
Track chains
Bottom rollers
Support rollers
Track tensioner device
Front cross-member pivots
Wear limits

DOZING EQUIPMENT HYDRAULIC SYSTEM
GENERAL DESCRIPTION
Operation of the hydraulic circuit
D150 equipment hydraulic system diagram
Equipment hydraulic system diagram
TROUBLESHOOTING
TESTS
Use of the flowmeter
Delivery test in a single circuit
Pump flow test
REPAIR PROCEDURES
Hydraulic oil reservoir (removal/installation)
Equipment hydraulic pump
Hydraulic control valve
Blade installation
SPECIFICATIONS AND DATA
Hydraulic control valve
Equipment hydraulic pump
Lift cylinder joint
Blade lifting control cylinder (Angledozer)
Blade lifting control cylinder (Bulldozer)
Blade Tilt control cylinder (Pat)
Blade Tilt control cylinder (Angledozer)
Blade Tilt control cylinder (Bulldozer)
Ripper cylinder
Blade push arms and rods
Frame and rods
Ripper

ELECTRICAL SYSTEM
Safety rules
General diagram of protection tree
Fuses
Link fuses and cold starting
Main switch
Engine starting switch
Back-up alarm
Starter motor
Instrument panel monitor
Electrical diagram of instrument panel monitor
Monitor senders
Display
Buzzer
Relay group - diodes - diverter box
Main connectors
Electrical diagram