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Ventrac 4520P User Manual

Ventrac 4520P
266 pages
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Service Manual
4520Z
Serial Numbers 01001–05664
09.40001Rev 00
Original Instructions (EN)

Table of Contents

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Ventrac 4520P Specifications

General IconGeneral
BrandVentrac
Model4520P
CategoryTractor
LanguageEnglish

Summary

Safety and Instructional Decals

Chapter 1 General Safety Instructions

Before Operating Machine Safety

Understand manual, keep shields, wear clothing, clear area, check interlocks, handle fuel safely.

While Operating Machine Safety

Remain seated, use seatbelt, clear bystanders, stop if failure, shift on level, don't leave unattended.

Maintenance and Service Safety

Keep decals clean, lower attachment, disconnect battery, use PPE, check fuel lines, avoid hot parts.

Jacking Instructions

Use correct blocks, hoists, jacks, park on level surface, remove attachments, block wheels.

Raising the Front of the Machine

Remove attachments, ensure hitch arms parallel, park, block wheels, position jack under frame tube.

Raising the Rear of the Machine

Remove attachments/weights, park, block wheels, position jack under frame/weight bar/hitch.

Chapter 2 Specifications

4520Z Specifications

Details wheelbase, length, height, width, weight, fluid capacities, and filter numbers.

Torque Specifications

Recommended fastener torque values, factors affecting torque, and fastener identification.

SAE J429 Grade 2 Steel Fasteners Torque

Table providing dry and lubricated torque values for SAE J429 Grade 2 steel fasteners.

SAE J429 Grade 5 Steel Fasteners Torque

Table providing dry and lubricated torque values for SAE J429 Grade 5 steel fasteners.

SAE J429 Grade 8 Steel Fasteners Torque

Table providing dry and lubricated torque values for SAE J429 Grade 8 steel fasteners.

ASTM F593 Stainless Steel Hex Cap Screw Torque

Table providing dry and lubricated torque values for ASTM F593 stainless steel hex cap screws.

Metric Class 8.8 Steel Fasteners Torque

Table providing dry and lubricated torque values for Metric Class 8.8 steel fasteners.

Metric Class 10.9 Steel Fasteners Torque

Table providing dry and lubricated torque values for Metric Class 10.9 steel fasteners.

Metric A2-70/A4-70 Stainless Steel Fasteners Torque

Table providing dry and lubricated torque values for metric A2-70/A4-70 stainless steel fasteners.

Chapter 3 Troubleshooting

GEARS Troubleshooting Methodology

A systematic approach involving gathering info, evaluating causes, assessing performance, repair, and confirmation.

General Hydraulic System Problems

Lists possible causes and corrective actions for leaks, foaming fluid, overheating, and lifting issues.

General Electrical System Problems

Troubleshooting for battery not charging, lights not activating, and PTO engagement issues.

General Engine Problems

Troubleshooting for starter not engaging, engine cranking but not starting, running rough, low power, overheating.

Chapter 4 Engine

Removing and Installing Air Cleaner System

Procedure for removing and installing air cleaner components, emphasizing leak prevention.

Removing the Exhaust System

Steps to remove the exhaust system, including safety precautions for hot components.

Installing the Exhaust System

Steps for installing the exhaust system, including torque specifications and thread locker use.

Removing and Installing Fuel Tank

Steps for removing and installing the fuel tank, including electrical system de-energization.

Removing the Fuel Pump

Steps for removing the fuel pump, including disconnecting electrical and fuel connections.

Installing the Fuel Pump

Steps for installing the fuel pump, connecting hoses, wiring, and priming the system.

Removing the Radiator

Steps for removing the radiator, including draining coolant and disconnecting hoses.

Installing the Radiator

Steps for installing the radiator, connecting hoses, filling coolant, and checking for leaks.

Engine Removal and Installation

Detailed steps for removing and installing the engine, including safety precautions for heavy lifting.

Chapter 5 Hydraulic System

Relieving Hydraulic System Pressure

Steps to release all pressure in the hydraulic system before performing work.

Remote Filtering Hydraulic System

Procedure for installing a high pressure filter assembly in the hydraulic system.

Testing Static Implement Pressure

Steps to test static implement pressure using a 1500-2000 PSI gauge.

Testing Hydrostatic Drive System Under Load

Procedure for testing hydrostatic drive performance under load using an anchor point.

Testing Steering Valve P-Port Bypass

Procedure to test the steering valve for oil bypassing by capping the return hose.

Adjusting Hydraulic Pump Tow Valve

Steps to adjust the hydraulic pump tow valve, with torque specifications.

Installing Hydraulic Hoses and Tubes (O-Ring Face Seal)

Procedure for installing hoses and tubes with O-ring face seals, including torque tables.

Installing Hydraulic Fittings (SAE Straight Thread O-Ring Fittings)

Procedures for installing non-adjustable and adjustable fittings with O-ring seals.

Hydraulic System Service and Repairs

General precautions for removing/installing components and changing hydraulic fluid.

General Precautions for Removing and Installing Hydraulic System Components

Steps before, during, and after repair/replacement of hydraulic system components.

Changing the Hydraulic Fluid

Steps for draining, replacing O-rings, and filling the hydraulic fluid reservoir.

Removing the Front Hydraulic Motor

Steps for removing the front hydraulic motor, including draining fluid and disconnecting hoses.

Installing the Front Hydraulic Motor

Steps for installing the front hydraulic motor, including O-rings and fluid addition.

Removing the Rear Hydraulic Motor

Steps for removing the rear hydraulic motor, including supporting the seat and disconnecting hoses.

Installing the Rear Hydraulic Motor

Steps for installing the rear hydraulic motor, including O-rings and fluid connection.

Removing the Hydraulic Pump

Steps for removing the hydraulic pump, including draining fluid and disconnecting hoses.

Installing the Hydraulic Pump

Steps for installing the hydraulic pump, connecting hoses, and adding fluid.

Removing the SDLA Spool Valve

Steps for removing the SDLA spool valve, including disconnecting hoses and linkage.

Installing the SDLA Spool Valve

Steps for installing the SDLA spool valve, connecting hoses, and adding fluid.

Replacing SDLA Spool Valve Float Detent

Steps for replacing the float detent in the SDLA spool valve.

Removing and Installing Hydraulic Cooler Fan

Steps for removing and installing the hydraulic cooler fan.

Removing and Installing Steering Valve

Steps for removing and installing the steering valve, including cover removal.

Removing the Steering Cylinder

Steps for removing the steering cylinder, including draining fluid and disconnecting hoses.

Installing the Steering Cylinder

Steps for installing the steering cylinder, connecting hoses, and lubricating fittings.

Removing the Lift Cylinder

Steps for removing the lift cylinder, including disconnecting hoses and engine covers.

Installing the Lift Cylinder

Steps for installing the lift cylinder, connecting hoses, and lubricating fittings.

Removing 3-Point Hitch Spool Valve

Steps for removing the 3-point hitch spool valve, including seat box panel removal.

Installing 3-Point Hitch Spool Valve

Steps for installing the 3-point hitch spool valve, connecting hoses, and adding fluid.

Removing 3-Point Hitch Lift Cylinder

Steps for removing the 3-point hitch lift cylinder, including disconnecting hoses.

Installing 3-Point Hitch Lift Cylinder

Steps for installing the 3-point hitch lift cylinder, connecting hoses, and lubricating fittings.

Removing and Installing Hydraulic Fluid Reservoir

Steps for removing and installing the hydraulic fluid reservoir, including draining fluid.

Chapter 6 Electrical System

Electrical System Quick Checks

Procedures for testing the charging system and checking interlock switch operation.

Checking Operation of Interlock Switches

Tests for engine start and run functions, PTO function, and warnings for malfunctioning systems.

Electrical Component Testing

Procedures for testing fuses, relays, TCM, TCS, gauge cluster, and various switches.

Battery Safety

Dangers and warnings related to battery handling, including electrolyte safety.

Chapter 7 Chassis

Chassis Adjustments

Procedures for adjusting PTO belt tension, PTO clutch air gap, parking brake, and neutral settings.

Adjusting the Parking Brake

Procedure to set parking brake tension requiring 7 kg (15 lb) force for engagement.

Adjusting Neutral

Procedure to adjust machine neutral position using the neutral assist lever and adjustment nut.

Adjusting the Neutral Switch

Steps to adjust the neutral switch mount based on measurements between pump arm and frame.

Chassis Service and Repairs

Procedures for removing and installing wheels, dual wheels, hood, grill, and engine covers.

Chapter 8 Axles

Axle Service and Repairs

Procedures for removing and installing front/rear axle assemblies and housing assemblies.

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