Caterpillar — Braking System - Test
Testing & diagnosis
From a Caterpillar owner's manual — check it applies to your exact model before use.
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Before you start
- Fasten the seat belt before you test the brakes.
- Park the machine on a dry, level surface.
- Make sure that the steering frame lock is in the unlocked position.
- If the machine begins to move during test, reduce the engine speed immediately and engage the parking brake.
Procedure
- Start the engine. Raise the implement slightly. Apply the service brake. Release the parking brake.
- Move the transmission control to THIRD SPEED FORWARD while the service brakes are applied. Make sure that the autoshift control is in the OFF position.
- Gradually increase the engine speed to high idle. The machine should not move.
- Reduce the engine speed to low idle. Move the transmission direction control to NEUTRAL. Engage the parking brake. Lower the implement to the ground. Stop the engine.
Specs & values
- These tests are not intended to measure the maximum brake holding effort
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.