TH62, TH63, TH82 and TH83 Telehandlers Operation Information Caterpillar


Operation Information
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1.1. Loading and Stacking

------ WARNING! ------

If the machine is positioned too close to electric power lines, electric current could pass through the machine. This could cause injury or death by electrocution. Keep the machine at least 8 m (25 ft) away from electric power lines. Always check for power lines before raising the boom.


------ WARNING! ------

The instability of the machine can result in injury or death. In order to ensure the stability during operation, the following conditions must be observed.

The tires must be inflated correctly and the tires must have the correct amount of ballast (if equipped).

The machine must be level.

The frame level switch must never be operated when the boom is raised.

The frame level switch must never be operated when the stabilizers are lowered.

The switches for the stabilizers must never be operated when the boom is raised.

The correct load chart must be referenced for the work tool that is installed on the machine. The specified weights and load centers must never be exceeded.

The machine must never be moved when the boom is raised above the carry position.


Use the frame leveling control in order to level the machine on uneven ground. Use the level indicator in order to verify that the frame is level.

Level the frame before you lift a load. Also, level the frame before you lower the stabilizers. Never operate the frame leveling control when you have raised the boom or after you have lowered the stabilizers.

Always use the boom in order to engage the load with the work tool. Do not move the machine in order to engage the load with the work tool. Always use the boom in order to position the load with the work tool. Do not move the machine in order to place the load with the work tool. Always use the boom in order to disengage the load from the work tool. Do not move the machine in order to disengage the load from the work tool.

Operate the boom smoothly in order to avoid damaging or dislodging the load.

Do not move the machine while the boom is raised or while the boom is extended. If it is necessary to reposition the machine, lower and retract the boom first.

Before you lower the stabilizers or before you raise the stabilizers, the boom must be fully retracted and the boom must be lowered to the travel position.

The transmission neutralizer switch operates in conjunction with the service brake. The switch must be in the OFF position when you travel on the roadways.

Do not use the machine for lifting loads in tandem with other machines. The combined load weight and force of the other machine can exceed machine capacity. This could cause the machine to turn over.

Ensure that the correct machine load capacity chart is used for the work tool that is installed. Ensure that you use the correct machine load capacity chart for operation on tires or for operation on the stabilizers. Make sure that you understand the machine load capacity chart before you attempt to lift a load.

Be alert at all times for changing conditions which may affect the stability of the machine.

Extending the boom or lowering the boom increases the outreach of the load. This decreases the capacity and the stability of the machine. Retract the boom before you lower the boom.

Be careful when you position a load or when you engage a load. Be careful when you are using clamps or when you are using cylinders. Also, be careful when you are using a device that pierces the load. Ensure that the operation can be completed without pushing the load off the stack.

Loading and Stacking

The illustrations that follow show a machine that is equipped with a work tool carriage. The work tool carriage is an example of a work tool that can be mounted on the quick coupler.



    Illustration 1g00567806

  1. The machine must be positioned square to the intended load. Approach the load slowly with the boom in the travel position and get as close to the load as possible.

  2. Engage the parking brake and move the transmission control to the NEUTRAL position.

  3. If necessary, level the frame before you raise the boom or before you engage the load. Do not level the frame when the boom is raised.


    Illustration 2g00722220

  4. If you are operating with stabilizers, lower the stabilizers until the front tires are just clear of the ground and the frame is level.


    Illustration 3g00722221

  5. Tilt the quick coupler until the forks are level. The machine is equipped with an automatic system for keeping the quick coupler at the selected angle when the boom is raised or lowered.


    Illustration 4g00569511

  6. Ensure that the forks are spread apart as far as possible. This gives increased stability to the load.


    Illustration 5g00722222

  7. Raise the boom and extend the boom. The forks must be in line with the pockets of the load.

  8. Use the load chart to assess the intended load. The load chart must indicate that the intended load is within the capacity of the machine. Refer to Operation and Maintenance Manual, "Load Charts".


    Illustration 6g00722223

  9. Extend and lower the boom. The forks must enter the pockets of the load cleanly. The forks must be fully engaged with the pockets of the load. Take care not to dislodge the load.


    Illustration 7g00722224

  10. Raise the load carefully. When you are sure that the machine is stable, tilt the quick coupler backward in order to raise the load. If you are not sure that the machine is stable, tilt the quick coupler forward in order to lower the load. Do not proceed. Reposition the machine in order to shorten the reach before you attempt to lift the load again.


    Illustration 8g00722225

  11. Use the joystick control to move the load away from the stack.


    Illustration 9g00722226

  12. Retract the boom and lower the load to the travel position before the machine is moved or before the stabilizers are raised. If necessary, level the frame. Make sure that the area behind the machine is clear of personnel and obstacles before backing up.


    Illustration 10g00569611

  13. Approach the destination slowly. Position the machine square. Get as close to the load placement location as possible. Engage the parking brake and move the transmission control to NEUTRAL position. If necessary, level the frame. Do not level the frame when the boom is raised.


    Illustration 11g00722227

  14. If you are operating with stabilizers, lower the stabilizers until the front tires are just clear of the ground.


    Illustration 12g00722228

  15. Raise the boom and extend the boom until the load is directly over the set down position. Do not exceed the maximum angle of the boom and do not exceed the maximum length of the boom. Use the load chart to determine the maximum angle of the boom and the maximum length of the boom.

    Proceed with caution when you approach the maximum angle and/or extension indicated by the load chart. If you are not sure that the machine is stable, retract the boom. Lower the load to the travel position. Move the machine closer to the load placement location. If the machine cannot be moved closer to the load placement location, the load placement location is outside the capacity of the machine. The load cannot be placed at the intended load placement location.



    Illustration 13g00722229

  16. Tilt the quick coupler forward until the load is level. Lower and set down the load in place.


    Illustration 14g00722230

  17. Ensure that the load is correctly placed and stable. Use the joystick control to raise the boom and retract the boom in a way that withdraws the forks cleanly from the load. Do not withdraw the forks by backing up the machine.


    Illustration 15g00722231

  18. Retract the boom and lower the boom to the travel position before you move the machine or before you raise the stabilizers.

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