Troubleshooting drawworks drums involves checking for leaks, proper brake function, and overall mechanical integrity. Specifically, air leaks, bent kickback bands, and insufficient brake band tension can cause issues. Additionally, issues with the clutch, transmission, and chain lubrication should be addressed.
Detailed Troubleshooting Steps:
- Check for Air Leaks:Ensure the air supply is adequate and there are no leaks in the lines or connections. A leak can prevent the clutch from engaging or disengaging properly.
- Inspect Kickback Bands:Replace any bent kickback bands, as they can interfere with the brake’s proper operation.
- Verify Brake Band Tension:Ensure the brake bands are properly tensioned to prevent dragging and ensure the clutch engages smoothly.
- Check Clutch Function:Inspect the clutch for proper engagement and disengagement. A failed clutch can prevent the drum from moving or cause it to creep.
- Examine Transmission:Ensure the transmission is functioning correctly and the shifter control rods and linkage are in good condition.
- Lubricate Chains:Regularly lubricate the chains, especially those in the cathead and other moving parts, to prevent wear and ensure smooth operation.
- Adjust Brake Clearance:Adjust the clearance between the friction pads and brake discs, ensuring they are within the specified tolerances.
- Check Drum Condition:Inspect the drum for cracks, damage, or excessive wear, especially in the brake rim area.
- Inspect Equalizer:Ensure the equalizer is functioning correctly, distributing the brake load evenly between the brake bands.
- Consult Manuals:Refer to the specific drawworks manual for detailed maintenance procedures and troubleshooting tips.
