New Holland Crawler Dozer D150 service manual

Description New Holland Crawler Dozer D150 service manual

New Holland Crawler Dozer D150 pdf service & repair manual

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

MANUAL CONTENT:
GENERALITIES
SAFETY RULES
IDENTIFICATION DATA
TABLE OF FLUID CAPACITIES
TABLE OF CENTRE OF GRAVITY
MAIN DIMENSIONS AND TABLES
CHECK DATA ON THE MACHINE
EQUIPMENT MANOEUVRE TIMES
LEAKAGES
GENERAL INSTRUCTIONS
DIAGNOSTIC CHECKS
UNITS OF MEASURE
TABLE OF TIGHTENING TORQUES

ENGINE
GENERAL SPECIFICATIONS OF SERIES B ENGINE
Engine main specifications
Engine identification
DESIGN FEATURES
SERVICEABILITY
SECURING THE ENGINE TO THE FRAME

TRANSMISSION
GENERAL DESCRIPTION
Transmission converter hydraulic diagram
TROUBLESHOOTING
TESTS
Torque converter stall test
Delivery pressure test procedure
Transmission gearshifting electric control valve
PROCEDURES FOR THE REPAIR OF THE TORQUE CONVERTER
Removal
Re-Installation
Disassembly
PROCEDURES FOR THE REPAIR OF THE TRANSMISSION
Removal
Re-Installation
Disassembly
Overhaul of forward the speed clutch
Overhaul of 3rd
Overhaul of reverse speed clutch
Modulating valves (Disassembly/Assembly)
Pressure relief valve (Disassembly/Assembly)
SPECIFICATIONS
General data
Tightening torques (Torque converter) Tightening torques (Transmission housing)
Transmission Data (Transmission clutches) (Transmission clutch discs)
(1st - 2nd - 3rd 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)
LIST OF OVERHAUL SPECIAL TOOLS

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
Final drive shaft and bearing fittings
LIST OF OVERHAUL SPECIAL TOOLS

BRAKES AND STEERING DIFFERENTIAL
GENERAL DESCRIPTION
Brakes hydraulic diagram
Main components of brakes circuit
Brakes power pump
Brakes power valve block
Brakes pedal valve
Steering-brakes filters
Steering hydraulic system diagram
Main components of steering circuit
Hydraulic motor
Steering piloting valve block
TROUBLESHOOTING
Diagnosis on display
TESTS
Checking circuit pressures on diagnostics
Adjusting the brake pedal
Checks and setting on brake power valve block
Calibration of steering levers
REPAIR PROCEDURES
Brake pedal valve (removal/disassembly)
Brake power pump (removal/disassembly/re-assembly)
Steering side group
Removal (preliminary operations)
Disassembly of transmission housing cover
Removal of steering side group
Removal of crown gear
Disassembly of crown gear
Disassembly of steering side group
Disassembly of differential planet carrier
Disassembly of planetary group
Disassembly of the bearing housing from the steering side assembly
Assembly of steering side assembly
Reassembly of planetary
Reassembly of planet carrier assembly
Reassembly and installation of crown gear assembly
Reassembly of steering side group into transmission housing
Bevel gear set (removal/disassembly of bevel pinion and crown gear)
Removal
Disassembly of bevel pinion
Disassembly of crown gear
Reassembly of crown
Assembly of bevel pinion
Brake group and pinion on brake side
Removal of brake group
Disassembly of brake group
Procedure and inspection for brake pack
Installation of brake group
Removal of brake pinion
Disassembly of brake pinion
Reassembly of brake pinion
Installation of crown gear
Re-installation of pinion
Procedure for the setting of the bevel pinion bearings pre-load(transmission side)
Procedure for the setting of the bevel gear set
Re-installation of brake pinion
Re-installation of brake group
Installation of rear transmission cover
Pre-load of gear support
Installation of housing cover
SPECIFICATIONS
Reduction bevel gear set
Pinion on brake side
Brakes
Brake pedal valve
Rear transmission (transmission side section)
LIST OF OVERHAUL SPECIAL TOOLS

UNDERCARRIAGE
GENERAL DESCRIPTION
Generalities
Main components
TROUBLESHOOTING
Slack track chain tension
High track chain tension
Insufficient tightening of the screws securing the shoes to the track chain
Working on steep slopes
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 re-installation
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
LIST OF OVERHAUL SPECIAL TOOLS

DOZER EQUIPMENT HYDRAULIC SYSTEM
GENERAL DESCRIPTION
Operation of hydraulic circuit
Diagram of dozer equipment hydraulic
TESTS
Use of flow-meter
Delivery test in the single circuits
REPAIR PROCEDURES
Hydraulic oil tank (removal/installation)
Equipment hydraulic
Hydraulic control valve (removal/disassembly/overhaul)

SPECIFICATIONS AND DATA
Hydraulic control valve
Power hydraulic valve
Pilot valve power valve
Blade lifting cylinder joint
Blade lifting control cylinder (Angledozer version)
Blade lifting control cylinder (Bulldozer version)
Blade tilt cylinder (PAT version)
Blade tilt cylinder (Bulldozer version)
Blade nagle cylinder (version PAT for STD and XLT)
Blade angle cylinder (PAT version for LGP)
Ripper RP12F cylinder
Ripper RP10F cylinder
Push beams and blade rods
C-frame and rods
Ripper (Version STD, XLT)
Ripper (Versione LGP)

ELECTRICAL SYSTEM
PROTECTION TREE ELECTRIC
Fuses
Fuse links and cold starting fuse
Main switch
Engine starging switch
Back-up alarm
Starter motor
ANGLE CONTROL
INSTRUMENT PANEL/MONITOR
Electric diagram of monitor instrument panel
MONITOR SENDERS
DISPLAY
Diagnosis on display
BUZZER
RELAY GROUP - DIODE BOXES - DIVERTER BOX
WAYS CONNECTORS

AIR CONDITIONING UNIT
Operating instructions
Technical data
Cab climate conditioner and error codes
Service precautions
Tool connections
Discharging
Refrigerant charging
Leak inspection
Special tools
Troubleshooting

LIST OF OVERHAUL SPECIAL TOOLS