Caterpillar 72H Pipelayer Braking System Test Guide

Here is an instruction show you guide on how to test braking system for Caterpillar 72H pipelayer.

Preparations:

Caterpillar CAT ET 2022A Diagnostic Software

CAT 3 Adapter



Procedures:
If the machine moves during the test, reduce the engine speed immediately, and engage the parking brake.
If the machine moved while testing the brakes,consult your Caterpillar dealer for brake
inspection and repair. Damaged brakes must be repaired before returning the machine to operation.



Note: Driving through the brakes in the first speed range is possible for this machine.
Make sure that the area around the machine is clear of personnel and clear of obstacles.
Test the brakes on a dry, level surface.
Fasten the seat belt before you test the brakes.

1. Start the engine.
2. Raise all attachments.
3. Depress the service brake pedal.
4. Release the parking brake.
5. While the brake pedal is depressed, move the directional control to the SECOND SPEED FORWARD position.
6. Gradually increase the engine speed to full load speed. The machine should not move.
7. Move the directional control to the NEUTRAL position.
8. Reduce the engine speed to LOW IDLE. Engage the parking brake. Lower all attachments to the ground. Apply a slight down pressure. Stop the engine.
9. Make any necessary repairs before you operate the machine.
CAT ET 2022A 2019C 2018A Free Download


NOTICE
If the machine moved while testing the brakes,contact your Caterpillar dealer. Have the dealer inspect and, if necessary, repair the service brake before returning the machine to operation.

Comments

Post a Comment

Popular posts from this blog

Caterpillar Compression Brake Solenoid Test Guide

Caterpillar Compression Brake Solenoid Test function allows brake wiring or solenoid problems to be identified when the engine is not running. This test does not verify proper brake valve actuation.   Related Contents: Caterpillar ET 2023C 2019C 2018A Electronic Technician Software Free Download CAT Adapter 3 ET4 478-0235 High Quality Diagnostic Adapter Caterpillar SIS 2021 2019 2018 Full EPC+Service Manual Free Download Caterpillar 18 digits factory password calculator Accessing To run the Compression Brake Solenoid Test function: Select “Diagnostic Tests” from the Diagnostics menu, and then select “Compression Brake Solenoid Test” from the submenu. The Compression Brake Solenoid Test screen is displayed. Screen Layout The Compression Brake Solenoid Test screen has the following areas: Tree Area The Injector Solenoid Test Tree area lists the available ECMs and the selected diagnostic test. Note: If more than one diagnostic test is available, the selected test will be highlighted. ...
Read more

How to Build Connection between PC and CAT ET4 Adapter

Image
Here is a guide on how to build connection between laptop and CAT ET4 diagnostic adapter . To connect the Communication Adapter 3 (“Comm Adapter 3”) to the PC, perform the following steps: Step 1: Align and attach the DB25 connector end of the USB PC cable to the “PC cable” end connection on the Comm Adapter 3. Step 2: Plug the USB Connector end of the PC cable into the USB port of the PC To connect the Comm Adapter 3 to the data link, perform the following steps: Step 1 After connecting the Comm Adapter 3 to the PC, connect the DB15-style connector end of the data link cable to the “Data Link” connection on the Comm Adapter 3. Step 2 Connect the other end of the data link cable to the service connector on the product. The lights on the front of the Comm Adapter 3 will glow and then will sequentially turn off from the top (“Data Link” end) to the bottom (“Computer” end) of the device. The Power LED will turn color from orange to red, and then the blue "USB" LED will blink onc...
Read more

How to Change Cooling System Coolant (DEAC) for Caterpillar 950F

This instruction show  you guide on how to  change cooling system coolant (DEAC) for Caterpillar 950F.More about Caterpillar repair manuals please refer to: CAT SIS 2021   Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure. Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing,adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, “Caterpillar Tools and Shop Products Guide” for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. Note: This procedure pertains to Caterpillar Diesel Engine Antifreeze/Coolant (DEAC) only. This procedure does not pertain to machi...
Read more