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Thomas PROTOUGH 900 - User Manual

Thomas PROTOUGH 900
165 pages
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Owners / Operators
and Parts Manual
Publication No. 50008
November 2004
S/N T9000101 onward
900

Table of Contents

Questions and Answers

  • J
    Jackson AustinAug 3, 2025
    Why won't the cylinders operate on my Thomas Utility Vehicle?
    • S
      Sandra SingletonAug 4, 2025
      If the cylinders on your Thomas Utility Vehicle aren't working, several factors could be the cause. First, ensure that the engine RPM is not too low, and adjust if necessary. Another potential issue is low hydraulic fluid; if this is the case, replenish the fluid. Finally, check for any fluid leaks and repair them.
  • M
    Michele HillAug 9, 2025
    What to do if the shakerhead will not move on my Thomas PROTOUGH 900 Utility Vehicle?
    • R
      Robert NashAug 9, 2025
      If the shakerhead on your Thomas Utility Vehicle isn't moving, there are several potential reasons. Begin by checking the hydraulic fluid level and replenish if it's low. Also, check for a broken key and replace if necessary. Hydraulic pump or motor failure can also cause this issue, so check the pressure and flow. Finally, inspect for bearing seizure and replace the bearing if needed.
  • M
    Melissa GibsonAug 13, 2025
    Why is there a loud howling noise when the shaker is engaged on my Thomas PROTOUGH 900 Utility Vehicle?
    • J
      Julie DaltonAug 13, 2025
      A loud howling noise when the shaker is engaged on your Thomas Utility Vehicle typically indicates that the shakerhead bearing is failing. Check the bearing and replace it if needed.
  • E
    Ellen AndrewsAug 18, 2025
    How to fix a slow operating shakerhead on a Thomas PROTOUGH 900?
    • W
      whitetoddAug 18, 2025
      If the shakerhead on your Thomas Utility Vehicle operates slowly, several factors could be the cause. First, check the hydraulic fluid level and replenish if low. Also, ensure that the engine RPM is not too low and adjust if necessary. Check the hydraulic pump or motor for leakage or wear by checking the pressure and flow. Inspect for a broken key and replace it if needed. Finally, check for bearing damage and replace the bearing if necessary.
  • C
    Cody JonesAug 25, 2025
    What causes a rapping noise from the shaker deck area on a Thomas PROTOUGH 900?
    • A
      Andrea AlexanderAug 25, 2025
      A rapping noise from the shaker deck area of your Thomas Utility Vehicle can be caused by a few things. First, check the screen tension bolts and tighten them to the specified torque. Also, inspect the crown bar rubber for wear and replace if necessary. Finally, verify that the engine RPM is not too high and adjust if needed.
  • R
    rhodesamberAug 28, 2025
    Why is the screen cloth broken on my Thomas PROTOUGH 900 Utility Vehicle?
    • T
      Timothy ThompsonAug 28, 2025
      Broken screen cloth on your Thomas Utility Vehicle can result from loose screen tension bolts. Tighten them to the specified torque. Also, worn crown bar rubber can cause this issue, so replace it.

Summary

THOMAS EQUIPMENT LIABILITY WARRANTY

1. SAFETY PRECAUTIONS

1.1 General Instructions

Provides essential advice for safe operation and handling of the machine.

1.2 Decals

Illustrates and identifies all safety and warning decals on the machine.

1.3 Orientation; Access

Identifies key components, controls, and access points on the machine.

2. CONTROLS

2.1 Engine Controls

Explains the instrument panel indicators and throttle controls for engine operation.

2.2 Hydraulic Controls

Details the levers for hydraulic lift and shaker head operation.

2.3 Pneumatic Controls

Describes the use of emergency brake and suspension dump valves.

2.4 Axle Stop Controls

Explains how to engage and disengage the axle stop for travel and operation.

3. OPERATION

3.1 Pre-Start Inspection

Outlines daily checks required before starting the machine for safe operation.

3.2 Starting Instructions

Step-by-step guide for safely starting the machine's engine.

3.3 Shut Down Procedure

Details the correct steps for safely shutting down the machine.

3.4 Set-up

Guides the user through the process of preparing the machine for operation.

3.5 Operating Procedures

Covers general operation, loading, material removal, and screening techniques.

3.6 Transporting

Provides instructions and checks required before transporting the machine.

4. MAINTENANCE

4.1 Service Access

Shows locations of various service points for maintenance access.

4.2 Preventative Maintenance Schedule

Outlines required maintenance tasks based on operating hours.

4.3 Daily Service

Covers essential daily checks for screen tension, engine, hydraulics, and safety.

4.4 50 Hour Service

Details maintenance tasks to be performed every 50 operating hours.

4.5 300 Hour Service

Specifies maintenance tasks required every 300 operating hours.

4.6 900 Hour Service

Details the comprehensive service required every 900 operating hours.

4.7 As Required Service

Covers maintenance tasks performed as needed, like screen replacement or tire checks.

4.8 Battery Maintenance and Boosting

Provides instructions for battery care and jump-starting procedures.

4.9 Electrical Schematic - Chassis

Diagram illustrating the chassis electrical system wiring.

4.10 Electrical Schematic - Engine Wire Harness

Diagram showing the engine wire harness electrical connections.

4.11 Hydraulic Schematic

Illustrates the hydraulic circuit layout and component connections.

4.11 Hydraulic Schematic - Conveyor Option

Illustrates the hydraulic circuit layout for the conveyor option.

4.12 Pneumatic Layout (up to S;N T9000106)

Diagram of the pneumatic system for specific serial number range.

4.12 Pneumatic Layout (S;N T9000107 onward)

Diagram of the pneumatic system for later serial numbers.

4.13 Troubleshooting

Guides users through common issues and their solutions for the screener and engine.

5. SPECIFICATIONS

5.1 Dimensional Specifications

Provides detailed measurements of the machine's dimensions.

5.2 Performance Specifications

Details material capacity, cycle times, and system specifications.

5.3 Fastener Torque Specifications

Lists recommended torque values for various bolts and screws.

6. REPLACEMENT SCREENS

6.1 Screen Selection Tips

Offers advice on choosing the correct screen size and type for applications.

6.2 Replacement Screen Information

Provides information on standard screen configurations and ordering.

7. PARTS

7.1 Mainframe

Lists parts for the main frame, lift assembly, tires, brakes, and access panels.

7.2 Shakerhead

Details parts for the shakerhead, shaft, suspension, and wire cloth.

7.3 Hydraulics

Lists parts for the hydraulic circuit, pump, motor, valves, and tank.

7.4 Electrical

Lists parts for the engine and chassis electrical systems.

7.5 Engine

Lists parts for the intake, exhaust, cooling, fuel, and accessory systems.

7.6 Pneumatics

Lists parts for the pneumatic layout and control valves.

7.7 Conveyor

Lists parts for the optional conveyor system and its hydraulic circuit.

Thomas PROTOUGH 900 Specifications

General IconGeneral
BrandThomas
ModelPROTOUGH 900
CategoryUtility Vehicle
LanguageEnglish