New Holland D125C PAT Blade, LT/WT - Tier 2 Service Manual

About this manual

New Holland published this Service Manual for the D125C Power Angle Tilt (PAT) Blade, Long Track (LT) - Tier 2 and D125C Power Angle Tilt (PAT) Blade, Wide Track (WT) - Tier 2 crawler dozers. It provides documented maintenance, service, and repair material for those crawler dozers.

Use the Manual Contents below to check that the exact maintenance, inspection, service, or repair procedure you need is included in this publication.

Manual details

Manufacturer

New Holland

Manual type

Service Manual

Equipment type

Crawler Dozer

Models

D125C Power Angle Tilt (PAT) Blade, Long Track (LT) - Tier 2 and D125C Power Angle Tilt (PAT) Blade, Wide Track (WT) - Tier 2

Applicability

PIN NHC104500 and above

Document number

48080036

Publication year

2017

Publication date

April 2017

Language

English

Page count

1848

Product highlights

Electrical systems

The manual includes wiring diagrams and electrical troubleshooting.

Hydraulic systems

The manual includes hydraulic circuit diagrams and hydraulic valve-adjustment material.

Special tools

A special-tools section is included.

Maintenance

The manual includes a maintenance schedule.

Applicability and key coverage

Supported models: D125C Power Angle Tilt (PAT) Blade, Long Track (LT) - Tier 2; D125C Power Angle Tilt (PAT) Blade, Wide Track (WT) - Tier 2.

Equipment type: Crawler Dozer.

Global P.I.N. range: PIN NHC104500 and above.

Electrical and hydraulic diagrams: separate schematic sections are included in the PDF.

Engine coverage

The listed contents identify the engine systems covered. They do not establish that a complete internal-engine overhaul is included.

Required separate publications

Requirements for separate publications have not been established by this description.

Manual contents

Use these source headings to locate the task or system you need in the PDF.

• INTRODUCTION — p. 9
  • Foreword - Important notice regarding equipment servicing (*) — p. 3
  • Safety rules (*) — p. 4
  • Safety rules - Personal safety (*) — p. 5
  • Safety rules - Ecology and the environment (*) — p. 7
  • Safety rules - Do not operate tag (*) — p. 8
  • Torque - Minimum tightening torques for normal assembly (*) — p. 9
  • Torque - Standard torque data for hydraulics (*) — p. 14
  • Torque - Standard torque data for hydraulic connections (*) — p. 30
  • Torque - Special torques (*) — p. 37
  • Basic instructions - Shop and assembly (*) — p. 40
  • Engine cooling system - Basic instructions (*) — p. 42
  • Maintenance chart — p. 44
  • Basic instructions - Moving a disabled machine (*) — p. 46
  • Hydraulic contamination (*) — p. 55
  • Consumables Loctite® Product Chart (*) — p. 56
  • Conversion factors (*) — p. 62
  • General specification (*) — p. 64
  • Capacities — p. 68
  • General specification — p. 69
  • Product identification — p. 70
  • Product identification - Machine orientation — p. 73
• Engine - 10 — p. 83
  • [10.001] Engine and crankcase — p. 10.1
  • [10.202] Air cleaners and lines — p. 10.2
  • [10.206] Fuel filters — p. 10.3
  • [10.304] Engine lubrication system — p. 10.4
  • [10.310] Aftercooler — p. 10.5
  • [10.400] Engine cooling system — p. 10.6
  • [10.414] Fan and drive — p. 10.7
• Hydrostatic drive - 29 — p. 161
  • [29.218] Pump and motor components — p. 29.1
• Brakes and controls - 33 — p. 215
  • [33.110] Parking brake or parking lock — p. 33.1
  • [33.202] Hydraulic service brakes — p. 33.2
• Hydraulic systems - 35 — p. 241
  • [35.000] Hydraulic systems — p. 35.1
  • [35.300] Reservoir, cooler, and filters — p. 35.2
  • [35.104] Fixed displacement pump — p. 35.3
  • [35.105] Charge pump — p. 35.4
  • [35.359] Main control valve — p. 35.5
  • [35.741] Dozer blade cylinders — p. 35.6
• Tracks and track suspension - 48 — p. 347
  • [48.130] Track frame and driving wheels — p. 48.1
  • [48.100] Tracks — p. 48.2
  • [48.134] Track tension units — p. 48.3
  • [48.138] Track rollers — p. 48.4
  • [48.140] Dropbox and final drive — p. 48.5
  • [48.AAA] Tracks and track suspension generic sub-group — p. 48.6
• Cab climate control - 50 — p. 575
  • [50.100] Heating — p. 50.1
  • [50.104] Ventilation — p. 50.2
  • [50.200] Air conditioning — p. 50.3
• Electrical systems - 55 — p. 667
  • [55.000] Electrical system — p. 55.1
  • [55.011] Fuel tank system — p. 55.2
  • [55.014] Engine intake and exhaust system — p. 55.3
  • [55.015] Engine control system — p. 55.4
  • [55.030] Service brake electrical system — p. 55.5
  • [55.050] Heating, Ventilation, and Air-Conditioning (HVAC) control system — p. 55.6
  • [55.100] Harnesses and connectors — p. 55.7
  • [55.201] Engine starting system — p. 55.8
  • [55.202] Cold start aid — p. 55.9
  • [55.301] Alternator — p. 55.10
  • [55.302] Battery — p. 55.11
  • [55.408] Warning indicators, alarms, and instruments — p. 55.12
  • [55.512] Cab controls — p. 55.13
  • [55.518] Wiper and washer system — p. 55.14
  • [55.DTC] FAULT CODES — p. 55.15
• Dozer blade and arm - 86 — p. 1777
  • [86.110] Dozer blade — p. 86.1
  • [86.124] Dozer pushbeams and struts — p. 86.2
• Platform, cab, bodywork, and decals - 90 — p. 1803
  • [90.160] Cab interior trim and panels — p. 90.1
  • [90.120] Mechanically-adjusted operator seat — p. 90.2
  • [90.124] Pneumatically-adjusted operator seat — p. 90.3
  • [90.100] Engine hood and panels — p. 90.4
• ELECTRICAL SCHEMATIC - D125C DOZER - 48080042 — p. 1844
• HYDRAULIC SCHEMATIC - D125C DOZER - 48080046 — p. 1848

Capabilities

The source outline indexes servicing instructions and maintenance. Use these source-backed headings to locate the applicable service or repair topic in the source PDF, then confirm model-specific notes, specifications, illustrations, and operating conditions at the relevant page before carrying out service or repair work.

Keep the source's safety sequence, prerequisite steps, labels, units, configuration notes, and footnotes with the selected task; do not apply an isolated value outside the conditions stated in the manual.

Delivery

This manual is supplied as a digital PDF file and is available for instant download after purchase. No physical media is shipped.

References

New Holland Service Manual for Crawler Dozer, document code 48080036, PDF edition.