Gehl V420 and Mustang 4200V Skid Steer Loader Service Repair Manual

Table of Content V420 Manual

Specifications

• Specifications

Safety

• General Information
• Signal Words
• Additional Safety Reminders
• Potential Hazards
• Machines Equipped with Air Conditioning
• Mandatory Safety Shutdown Procedure
• Lift Arm Support Device
• Lift Arm Support Device Engagement
• Lift Arm Support Device Disengagement
• ROPS/FOPS – Raising
• ROPS/FOPS – Lowering
• Relieving Hydraulic Pressure – Joystic Controls – Lift/Tilt/Auxiliary
• Loader Raising Procedure
• Loader Lowering Procedure

Lubrication

• General Information
• Hydraulic Oil Reservoir
• Crankcase Oil
• Chaincases
• Grease Fitting Locations
• Cooling System Drain Procedure

Mainframe

• Introduction
• Mainframe – Chassis Components
• Mainframe – Rear Grille Components
• Mainframe – Engine Cover Components
• Engine Access Cover – Removal and Installation
• Roll-Over and Falling Object Protective Structure Components – ROPS/FOPS Interior
• Roll-Over and Falling Object Protective Structure Components – ROPS/FOPS Exterior
• ROPS/FOPS Removal and Installation
• Seat Removal and Installation
• Cab Heater Assembly – ROPS/FOPS
• HVAC Assembly – Front – ROPS/FOPS
• HVAC Assembly – Rear – ROPS/FOPS
• HVAC Assembly – Routing – ROPS/FOPS
• HVAC Assembly – Compressor – ROPS/FOPS
• Seat Slide Replacement
• Side Console Removal and Installation
• Air Duct Louver Replacement
• ROPS/FOPS Rear Window Removal and Installation
• Restraint Bar Components
• All-Tach® Hitch Components
• Power-A-Tach® Components – Chassis
• Power-A-Tach® Components – Lift Arm
• Restraint Bar Removal and Installation
• All-Tach® and Power-A-Tach® Hitch Removal and Installation
• Lift Arm Components
• Lift Arm Removal and Installation
• Rear Link Removal and Installation
• Timing Link Removal and Installation
• Lift Arm, Rear Link, Hose Pivot and Timing Link Bushing Replacement
• Control Cover Components
• Control Console Removal and Installation
• Floor Plate, Battery Access Cover and Kickplate Cover Removal and Installation
• Crossmember Removal and Installation
• Fuel Sensor Removal and Installation
• Rear Grille Removal and Installation
• Rear Grille Latch Removal and Installation

Wheel Drives

• Introduction
• Wheel Drive Components
• Drive Chain Adjustment
• Axle Housing Assembly Removal and Installation
• Drive Chain Removal and Installation
• Axle Assembly Components
• Axle and Wheel Bearing Disassembly and Assembly

Controls

• Introduction
• Control Locations
• Wheel Drive Components
• Lift and Tilt Components
• Control Handle Removal and Installation – Electrical Auxiliary Grip / Left Control
• Control Handle Assembly
• Control Handle Tracking Adjustment
• Neutral Centering Test and Adjustment
• Electrical Foot Throttle Removal and Installation
• Electrical Foot Throttle Components

Hydrostatic System

• Introduction
• Hydrostatic Components
• Charge Pressure Test and Adjustment
• Hydrostatic Pump Relief Valves
• Hydrostatic Pump Removal and Installation
• Hydrostatic Pump Drive Coupling Removal and Installation
• Drive Motor Removal and Installation
• Troubleshooting Guide
• Hydrostatic/Hydraulic Schematic

Hydraulic System

• Introduction
• Hydraulics – Standard Chassis Components
• Hydraulics – High-Flow Chassis Components
• Hydraulics – Standard Auxiliary Lift Arm Components
• Hydraulics – High-Flow Auxiliary Lift Arm Components
• Hydraulics – Hydraglide™ Components
• Pressure and Load-Sense Check, Test and Adjustment
• Tilt Cylinder Test
• Tilt Circuit Spool Leakage Test
• Self-Leveling Valve Test
• Lift Cylinder Test
• Lift Circuit Spool Leakage Test
• Solenoid Valve Test – Joystick Drive Supply, All-Tach/Fan, Brake/Two-Speed, Safety Locks and Ride Control
• Hydraulic Oil Filter Element Replacement
• Lift Cylinder Components
• Tilt Cylinder Components
• Tilt Cylinder Removal and Installation
• Lift Cylinder Removal and Installation
• Lift/Tilt Cylinder Disassembly / Assembly
• Auxiliary (Fan) Pump Removal and Installation
• Load-Sense Axial Piston Pump Removal and Installation
• Self-Leveling Valve Removal and Installation
• Self-Leveling Valve Adjustment
• Brake/Two-Speed and Safety Lock Solenoid Valves – Removal and Installation
• Joystick Drive Supply, All-Tach/Fan and Hydraglide™ Ride Control Solenoid Valves – Removal and Installation
• Lift/Tilt, Joystick Drive Supply, Brake/Two-Speed, All-Tach/Fan and Hydraglide™ Ride Control Solenoid Valves – Disassembly and Assembly
• Main Control Valve Components – High-Flow
• Control Valve Removal and Installation
• Control Valve Disassembly and Assembly
• Control Valve Solenoid Removal and Installation
• Inlet Relief Valve and Drain Orifice Removal and Installation
• Hydraulic Oil Reservoir Removal and Installation
• Fan Guard and Fan Motor Removal and Installation

Electrical System

• Introduction
• Power Distribution Panel Test and Operation
• Fan Control Module Test
• Chassis Electrical – Battery
• Chassis Electrical – Harness
• ROPS/FOPS Electrical Assembly
• Control Modules
• J1939 Data Connector
• Main Control Unit LEDs/Pins Description
• Controller Area Network (CAN) Functional Detail
• Restraint Bar Assembly
• Electrical Lights Components
• LED Electrical Lights Components
• Electrically-Controlled Standard Auxiliary and High-Flow Hydraulic Flow System Test and Operation
• Engine Throttle Test and Operation
• Seat Switch Removal and Installation
• Restraint Bar Switch Removal and Installation
• Master Disconnect Switch – Remote Battery Terminal Removal and Installation
• Front and Rear Work Light Bulb Replacement (Halogen Bulbs)
• Dome Light Bulb Replacement

Engine

• Introduction
• Troubleshooting Guide
• Engine Components
• Air Cleaner and Exhaust Components
• Radiator/Cooler Components – Main
• Radiator/Cooler Components – Cooler
• Fuel Assembly
• Diesel Exhaust Fluid (DEF) Assembly
• Oil Filter Element Removal and Installation
• Air Cleaner Assembly Removal and Installation
• Air Filter Element Removal and Installation
• Batteries Removal and Installation
• Diesel Exhaust Fluid (DEF) Service (If So Equipped)
• Selective Catalytic Reduction (SCR) Standstill Regeneration (If So Equipped)
• Starter Removal and Installation
• Exhaust Assembly Removal and Installation
• Alternator Belt Adjustment
• Radiator/Cooler Removal and Installation
• Charge Air Cooler Removal and Installation
• Fan Shroud Removal and Installation
• Fan Adjustment
• Engine Removal and Installation
• Engine Diagnostic Chart
• Engine Diagnostic Fault Codes

Index