Repair manual contains complete technical information and instructions for the proper execution of the current and capital repairs, maintenance for L175 skid steer and C175 track loaders New Holland.
Section Index:
Section 00 - GENERAL INFORMATION
Introduction
About Improvements
Company Policy
Parts and Accessories
Model Codes
Precautionary Statements
Safety Precaution Information
General Safety Information
Machine Model and Serial Number Location
Engine Model and Serial Number Location
Hardware Torque Specifications
Installation of Adjustable Fittings in Straight Thread O Ring Bosses
Standard Torgue Data for Hydraulic Tubes and Fittings
Pipe Thread Fitting Torgue
Lubricants and Coolants
Sealants
Properly Support a Raised Machine
Properly Support Boom on Boom Lock Pins
Raising Boom Without Hydraulic Oil Flow
Raising Boom Without Battery Voltage (12V)
Reattaching Cylinders After Repair with Boom Resting on Boom Lock Pins
Major Unit Overhaul
Cab and Boom Tilt Procedure
Craning the Skid Steer
Special Tools
specifications
Cab and Boom Tilt Procedure (Cab Upgrade Machines Only)
Section 10 - ENGINE - L175 - N844LT, C175 - N844LT
General Engine Information
General Description
Engine Component Descriptions
Engine Model and Serial Number Location
Turbocharger Lubrication
Safety Precautions
General Engine Specifications
Troubleshooting
L175 - Excessive Oil Consumption
Specifications - Service Standards
Torque Specifications
Engine Components Electrical Diagram
Engine Removal
Engine Disassembly Sequence
Engine Component Maintenance
Valve Seat
Cylinder Block
Piston and Piston Rings
Connecting Rod
Bearing Holder
Front Crankshaft Bearing (Bushing)
Crankshaft
Flywheel and Ring Gear
Camshaft Assembly
Camshaft Gear and Bearing Assembly
Timing Gear
Oil Pump
Oil Filter
Water Pump Assembly and Thermostat Housing
Thermostat
Governor
Governor Operation
Engine Reassembly Sequence
Crankshaft and Bearing Holder Assembly
Rear Oil Seal
Backplate/Flywheel Housing
Flywheel
Piston and Connecting Rod
Oil Intake and Oil Strainer
Oil Sump
Dipstick and Tube
Front Plate
Idler Gear and Oil Pump Assembly
Timing Gear Case Installation
Crankshaft Pulley
Injection Pump Installation
Adjusting the Fuel Injection Timing
Spill Timing Procedure
Reinstallation of Engine into Skid Steer Frame
How to Operate the Engine After Overhaul
Cooling System
Cooling System Operation
Water Pump Assembly and Thermostat Housing
Radiator
Fuel System
Fuel Specifications
Diesel Fuel
Diesel Fuel Storage
Fuel System Components
Fuel Guage
Cold Start Aid
Fuel Filter System
Priming the Fuel System
Fuel System Testing
Fuel System Components
Fuel Injection Timing
Turbocharger - L175 N844LT Engine
Turbocharger Removal
Miscellaneous Engine Electrical
Shut-off Solenoid
Special Tools
Labor Guide
Section 27 - TRACKS AND MOTORS
Specifications
Special Torques
Wheel Hub Housing - Remove
Wheel Hub Housing - Install
Drive Sprocket - Remove
Drive Sprocket - Install
Rubber Track - Remove
Rubber Track - Install
Rubber Track - Tension Adjust
Track Tension Mechanism - Remove
Track Tension Mechanism - Install
Track Roller - Remove
Track Roller - Install
Idler Wheel - Remove
Idler Wheel - Install
Track Drive Motor - Remove
Track Drive Motor - Install
Track Drive Motor - Disassembly
Track Drive Motor - Assembly
Section 29 - HYDROSTATIC TRANSMISSION
General Information
Operation
Specifications
Troubleshooting
Hydrostatic Drive System Testing
Hydrostatic System Oil Flow
Hydrostatic Charge System Pressure Test
Hydrostatic Pump Case Drain Test
Hydrostatic Pump High Pressure Test
Hydrostatic Pump Efficiency Test
Hydrostatic Motor Case Drain Test
Hydrostatic Motor Efficiency Test
Hydraulic, Hydrostatic System Air Ingress Test
Hydrostatic Pumps
Hydrostatic Pump Removal
Hydrostatic Pump Disassembly
Hydrostatic Pump Parts Inspection
Hydrostatic Pump Reassembly
Hydraulic System Pump Installation (Without High Flow)
Hydraulic System Pump/High Flow Pump Installation
Hydrostatic Pump Reinstallation
Hydrostatic Motor
Hydrostatic Motor Removal
Hydrostatic Motor Disassembly
Hydrostatic Motor Parts Inspection
Hydrostatic Motor Reassembly
Hydrostatic Motor Reinstallation
Hydraulic System Cleaning Procedure
Start-up Procedure After Rebuild (After Pump or Motor Replacement)
Charge Check Valve
Charge Check Valve Removal and Replacement
Section 33 - BRAKES AND CONTROLS
PARKING BRAKE
Parking Brake Removal
Parking Brake Reinstallation
Parking Brake Disassembly
Parking Brake Reassembly
Troubleshooting - Parking Brake Button - Testing
Troubleshooting - Electrical Solenoid - Testing
Brake Valve - Illustration
Brake / Two-Speed Valve - Illustration
Section 35 - HYDRAULIC SYSTEM
General Information
Hydraulic System Compatibility
Boom Cylinder Pivot Pins
Boom Cylinder Pivot Pin Location and Machine Usage
Control Valve Power Beyond
Specificatios
Troubleshooting
Auxiliary Boom Hydraulics Troubleshooting
Hydraulic System Testing
Hydraulic System Oil Flow
Control Valve - Bucket Spool Shifted
Control Valve - Boom Spool Shifted
Control Valve - Auxiliary Spool. Shifted
Main System Pressure Tests
Checking Main System Pressure at Boom Cylinders
Checking Main System Pressure at Bucket Cylinders
Checking Main System Pressure at Auxiliary Boom Hydraulic Quick Couplers
Boom Circuit Relief Valve Test
Gear Pump Flow Efficiency Test
Boom and Bucket Spool Lock Solenoid Test
Hydraulic, Hydrostatic System Air Ingress Test Control Valve Specifications
Control Valve Removal
Control Valve Disassembly and Inspection
Control Valve Parts Inspection
Control Valve Reassembly
Control Valve Reinstallation
Hydraulic Pump Specifications
Hydraulic Pump Removal
Hydraulic Pump Removal/Disassembly (Without High Flow)
High Flow Pump Parts Inspection
Hydraulic Pump Parts Inspection
Hydraulic Pump Reassembly/Installation (Without High Flow)
Hydraulic Pump and High Flow Pump Reassembly/Installation
New Hydraulic Pump Installation (Without High Flow)
New Hydraulic Pump/High Flow Pump Installation
Gear Pump Start-up Procedure
Cylinders, Boom and Bucket
Boom Cylinder Removal
Boom Cylinder Disassembly
Boom Cylinder Parts Inspection
Boom Cylinder Reassembly
Boom Cylinder Reinstallation
Bucket Cylinder Removal
Bucket Cylinder Disassembly
Bucket Cylinder Parts Inspection
Bucket Cylinder Reassembly
Bucket Cylinder Reinstallation
Pedal Controls
Pedal Removal (With Boom and Bucket Pedal Controls)
Pedal Inspection (With Boom and Bucket Pedal Controls
Pedal Reinstallation (With Boom and Bucket Pedal Controls
Pedal Removal (With Boom and Bucket Hand Controls
Pedal Inspection (With Boom and Bucket Hand Controls
Pedal Reinstallation (With Boom and Bucket Hand Controls
Hydraulic Cooling, Filter, Reservoir System
Filter System
Filter Removal
Base Remova
Reassembly
Oil Cooler
Oil Cooler Removal
Oil Cooler Reassembly
Oil Reservoir
Oil Reservoir Removal
Oil Reservoir Reinstallation
Adapting Attachments
Labor Guide
Machines Equipped With Pilot Controls
Specifications
Loader Function Troubleshooting
Pilot Pressure Test
Illustration - Loader Control
Right Control Handle - Removal
Right Control Handle - Installation
Hydraulic Schematic - Frame 1- (Mechanical Control Machines)
Hydraulic Schematic - Frame 2- (Mechanical Control Machines)
Hydraulic Schematic - Frame 3-(Mechanical Control Machines)
Hydraulic Schematic - Frame 4- (Mechanical Control Machines)
Hydraulic Schematic - Frame 5- (Mechanical Control Machines)
Hydraulic Schematic - Frame 6- (Mechanical Control Machines)
Hydraulic Schematic - Frame 7- (Mechanical Control Machines)
Hydraulic Schematic - Frame 8- (Pilot Control Machines)
Hydraulic Schematic - Frame 9- (Pilot Control Machines)
Hydraulic Schematic - Frame 10- (Pilot Control Machines)
Hydraulic Schematic - Frame 11- (Pilot Control Machines)
Hydraulic Schematic - Frame 12- (Pilot Control Machines)
Hydraulic Schematic - Frame 13- (Pilot Control Machines)
Hydraulic Schematic - Frame 14- (Pilot Control Machines)
Hydraulic Schematic - Frame 15- (Pilot Control Machines)
Hydraulic Schematic - Frame 16- (Pilot Control Machines)
Section 37 - TOWING HOOKS AND BALLASTING
Rear Counterweights
Rear Counterweight Support Removal
Section 39 - FRAMES
General Information
ROPS
ROPS Frame
ROPS Remival
ROPS Reinstallation
Labor Guide
ROPS Removal (Cab Upgrade Machines Only)
ROPS Reinstallation (Cab Upgrade Machines Only)
Section 44 - AXLES AND WHEELS
General Information
Specifications
Troubleshooting
Testing
Axles
Axle Housing Assembly Removal
Axle Disassemby
Axle Parts Inspection
Axle Reassembly
Axle Housing Reinstallation
Final Drive
Drive Chain and Sprocket Removal
Final Drive Parts Inspection
Final Drive Reassemby
Drive Chain - Tension Adjust
Tire/Wheels
Labor Guide
Section 50 - CAB CLIMATE CONTROL
Heater/Defroster (Cab)
Labor Guide
Air Conditioning Sytem Special Tools
Air Conditioning Sytem General Specifications
Air Conditioning Sytem Discharging and Evacuate and Recovery
Air Conditioning Sytem Charging
Compressor Removal
Compressor Installation
Compressor Oil Level Check
Compressor Belt Measure and Tension Adjust
Compressor Magnetic Clutch Disassemble
Compressor Magnetic Clutch Assembly
Air Conditioning Sytem Removal
Air Conditioning Sytem Installation
Air Conditioning Sytem Condenser Removal
Air Conditioning Sytem Condenser Installation
Air Conditioning Sytem Evaporator Removal
Air Conditioning Sytem Evaporator Installation
Receiver/Drier Removal and Installation
Air Conditioning Sytem Visual Inspection and Troubleshooting
Air Conditioning Sytem Testing
Air Conditioning Sytem Leakage Test
Air Conditioning Sytem Problem Solving
Air Conditioning Sytem Problem Solving
Section 55 - ELECTRICAL SYSTEM
General Electrical Information
Definition of Terms
Adapting Attachments Requiring 12V Electrical Power
Specifications
Wire Identification and Circuit Diagram Legend
Electrical Diagram - Starting System
Electrical Diagram - Power Distribution
Electrical Diagram -Safety Interlock and Fuel Supply System
Electrical Diagram - Instrument Cluster Monitoring System
Electrical Diagram - Standard Lamps
Electrical Diagram - Loader Arm Auxiliary Electrical Control Box (Optional)
Electrical Diagram - Loader Arm Auxiliary Electric Power Controls (Optional)
Electrical Diagram - Flasher and Turn Signals North America Electrical
Electrical Diagram - Main Electrical European On-Road Regulations
Electrical Diagram - Boom/Rear Electrical European On-Road Regulations
Electrical Diagram - Right-Hand Handle (Option) Electrical Multifunction Adaptation
Electrical Diagram - Left-Hand Handle (Options)
Electrical Diagram - Right-Hand Handle (Options)
Electrical Diagram - Glow Plugs
Electrical Diagram - Rotating Beacon (Optional)
Electrical Diagram - Two Speed (Optional)
Electrical Diagram - Horn (Optional)
Electrical Diagram - Accessory Outlet (Optional)
Electrical Diagram - Back-up Alarm (Optional)
Electrical Diagram - Wiper/Washer (Optional)
Electrical Diagram - Auxiliary Hydraulics (Optional)
Electrical Diagram - High Flow (Optional)
Electrical Diagram - Hydraulic Coupler (Optional)
Electrical Diagram - Heating and Air Conditioning (Optional)
Electrical Diagram - Pilot Hydraulic Controls
Electrical Diagram - Ground Connections
Electrical Diagram - Ground Connections
Wire Identification and Circuit Diagram Legend (Cab Upgrade Machines)
Electrical Diagram - Starting System (Cab Upgrade Machines)
Electrical Diagram - Power Distribution (Cab Upgrade Machines)
Electrical Diagram -Safety Interlock and Fuel Supply System (Cab Upgrade Machines)
Electrical Diagram - Instrument Cluster Monitoring System (Cab Upgrade Machines)
Electrical Diagram - Standard Lamps (Cab Upgrade Machines)
Electrical Diagram - Loader Arm Auxiliary Electrical Control Box (Optional)
(Cab Upgrade Machines)
Electrical Diagram - Loader Arm Auxiliary Electric Power Controls (Optional)
(Cab Upgrade Machines)
Electrical Diagram - Flasher and Turn Signals North America Electrical
(Cab Upgrade Machines)
Electrical Diagram - Main Electrical European On-Road Regulations
(Cab Upgrade Machines)
Electrical Diagram - Boom/Rear Electrical European On-Road Regulations
(Cab Upgrade Machines)
Electrical Diagram - Work Lamps (Cab Upgrade Machines)
Electrical Diagram - Control Lever Interface (Cab Upgrade Machines)
Electrical Diagram - Left-Hand Handle (Options) (Cab Upgrade Machines)
Electrical Diagram - Right-Hand Handle (Options) (Cab Upgrade Machines)
Electrical Diagram - Grid Heater System (Cab Upgrade Machines)
Electrical Diagram - Rotating Beacon (Optional) (Cab Upgrade Machines)
Electrical Diagram - Two Speed (Optional) (Cab Upgrade Machines)
Electrical Diagram - Horn (Optional) (Cab Upgrade Machines)
Electrical Diagram - Accessory Outlet (Optional) (Cab Upgrade Machines)
Electrical Diagram - Back-up Alarm (Optional) (Cab Upgrade Machines)
Electrical Diagram - Wiper/Washer/Door Switch (Optional) (Cab Upgrade Machines)
Electrical Diagram - Auxiliary Hydraulics (Optional) (Cab Upgrade Machines)
Electrical Diagram - High Flow (Optional) (Cab Upgrade Machines)
Electrical Diagram - Hydraulic Mount Plate (Optional) (Cab Upgrade Machines)
Electrical Diagram - Heating and Air Conditioning (Optional) (Cab Upgrade Machines)
Electrical Diagram - Pilot Hydraulic Controls
Electrical Diagram - Ground Connections (Cab Upgrade Machines)
Electronic Instrument Cluster (EIC) Panel
Electronic Instrument Cluster (EIC) Panel (Cab Upgrade Machines)
Electronic Instrument Cluster Operating Instructions
Electronic Instrument Cluster Troubleshooting
Advanced Instrument Cluster (AIC) Panel (Optional)
Advanced Instrument Cluster (AIC) Panel (Optional) (Cab Upgrade Machines)
Advanced Instrument Cluster Operating Instructions
Advanced Instrument Cluster Troubleshooting
Removal, Installation and Wiring of Electrical Components
Battery Removal and Installation
Cab Fuse Block and Panel Removal and Installation
Seat Switch Removal
Seat Switch Installation
Seat Belt Buckle and Switch Assembly Removal and Installation
Road Light and Work Light Switch Removal and Installation
Engine Fuse and Relay Panel
Start Interlock Relay Removal and Installation
Engine Fuse Block Removal and Installation
Preheat Relay Removal and Installation
Preheat Glow Plug Removal and Installation
Fuel System Components
Electric Fuel Pump
Electric Fuel Pump Removal
Fuel Shutoff Solenoid
Fuel Shutoff Solenoid Testing
Replacement of Fuel Shutoff Solenoid
Air Filter Restriction Indicator Switch Removal and Installation
Engine Coolant Temperature Sender Removal and Installation
Engine Oil Pressure Switch Removal and Installation
Hydrostatic Charge Pressure Switch Removal and Installation
Hydraulic Oil Filter Restriction Switch Removal and Installation
Hydraulic Oil Temperature Sender Removal
Hydraulic Oil Temperature Sender Installation
Boom/Bucket Control Valve Spool Lock Solenoid Removal and Installation
Road/Work Lights
Alternator (55 Amp Version)
Alternator Service Specifications
Alternator - System Testing and Troubleshooting
Initial Tests
Alternator Removal
Alternator Disassembly
Alternator Installation
Starter
Starter Motor Troubleshooting
Starter Motor Removal
Starter Motor Disassembly
Starter Motor Inspection and Repair
Starter Motor Reassembly
Starter Motor Installation
Miscellaneous Engine Components
Glow Plugs and Glow Plug Troubleshooting
Oil Pressure Switch
Fuel Shutoff Solenoid
Labor Guide
Section 82 - FRONT LOADER (BOOM AND MOUNTING PLATE)
General Information
Buckets
Boom Lock Pins and Linkage
Boom
Attachment Mounting Plate
Boom and Cylinder Pivot Pins
Boom and Cylinder Pivot Pin Location and Machine Usage
Boom and Cylinder Pivot Pins Size
Pallet Fork
Utility Fork
Bucket Cutting Edge (Replacement)
Bucket Latch Plate Installation Procedure
Dirt Tooth Kit Installation
Bucket Tooth Spacing
Boom Lock Pin/Linkage
Boom Lock Pin/Linkage Removal
Boom Lock Pin/Linkage Reinstallation
Boom, Upper and Lower Link
Boom, Upper and Lower Link Removal
Front Boom Mounting Plate Pivot Hub Replacement
Boom, Upper and Lower Link Reinstallation
Attachment Mounting Plate
Attachment Mounting Plate Removal
Repair/Rebuild Mounting Plate
Latch Lever and Pin Removal/Repair
Attachment Mounting Plate Parts Inspection
Checking Procedure for Buckets and Attachments
Checking Procedure
Checking the Loader Faceplate
Labor Guide
Section 88 - ACCESSORIES
General Information
Adapting Attachments Requiring 12V Electrical Power
Hydraulic System Compatibility
Arm Pads For Cab Side Panels
Armrests for Deluxe Seat
Forearm Rests
Back-up Alarm
Block Heater (Engine)
Electric Power Supply (12 Volt, 15 Amp)
Exhaust (Engine)
Aspirator Precleaner Muffler
High Flow Hydraulics
High Flow Hydraulics Troubleshooting
High Flow Hydraulics Component Replacement
Horn
Shoulder Belt (Seat)
Slow-moving Vehicle (SMV) Sign Kit
Warning Light (Rotary Beacon)
Warning Lights (Four-way Flashers/Turn Signal/Horn)
Labor Guide
Section 90 - PLATFORMS, CAB, BODYWORK, AND DECALS
General Information
Seat and Seat Pan Support
Cab Inner Shell
Seat Removal
Seat Pan Support Removal
Seat, Switch and Pan Reinstallation
Cab Inner Shell
Cab Inner Shell Removal
Cab Inner Shell Reinstallation
Safety Decals
Labor Guide
ELECTRICAL SCHEMATICS
HYDRAULIC SCHEMATICS
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