DG600-240-06-00 Thrust Bearing Pad Guide: Mastering Installation, Clearances, and Troubleshooting

This guide is for power plant operators, maintenance crews, and buyers. It focuses on the Thrust Bearing Pad DG600-240-06-00, a key part for feed water pumps. These pads keep the pump rotor in place and stop it from shifting back and forth. If they fail, the whole pump fails. This manual answers common questions about picking the right part, installing it, and keeping it running.

Part 1: Product Features and Selection

Q1: What makes the DG600-240-06-00 special for high loads?

Answer: It is built specifically for the DG600-240 feed pump. There are three big reasons it handles heavy work so well:

• Babbitt Metal Layer: This soft alloy layer is forgiving. If the oil drops for a second, the Babbitt cushions the shaft to prevent total destruction.
• Rigid Support: The back of the pad is stiff. It won't warp when the pump starts up or changes speeds, even under massive axial thrust.
• Smart Oil Wedges: The shape is designed to pull in oil fast. This creates a strong oil film that handles high pressure without breaking.

Q2: How do I know if the pads I bought are high quality?

Answer: Look for Perfect Fit and Strong Materials. We recommend buying from a trusted source like Dongfang SRI. Check these two things:

• Check the Size: Measure thickness, width, and pin holes. They must match your drawings. Dongfang SRI pads are machined to +/-0.02mm for drop-in installation.
• Check the Paperwork: Ask for material certificates. You need to know the Babbitt is bonded tightly to the steel back. Dongfang SRI provides full testing reports to prove the bond is 100% solid.

Part 2: Field Installation and Setup

Q3: What are the must-do steps before installing?

Answer: It comes down to Cleaning and Scraping.

• Total Clean: Wipe the bearing box and thrust disc. No dust, no old oil, no metal chips.
• Scraping for Contact: Use blue or red oil to check the contact between the pad and the disc. You want at least 75% contact, spread evenly. You are aiming for a tiny wedge gap to let the oil in.

Tip: Dongfang SRI pads come pre-treated, so you have much less scraping to do on-site.

Q4: How do I set the axial clearance?

Answer: Clearance lets the rotor expand when it gets hot. Usually, you want 0.25mm to 0.40mm.

1. Measure: Use a dial indicator on the drive end of the rotor.
2. Adjust: Add or remove shims (washers) behind the non-working pads. Since Dongfang SRI pads have consistent thickness, you won't have to keep guessing with the shims. Always turn the shaft by hand afterward.

Part 3: Running and Maintenance

Q5: How do I monitor the pads while the pump is running?

Answer: Watch the Temperature and the Oil.

• Temp: Use Pt100 sensors. Stay below 85°C. If one pad is 5°C hotter than the others, something is wrong.
• Oil Analysis: Test the oil for Tin (Sn) or Copper (Cu). If these levels go up, your Babbitt layer is wearing down.

Q6: When is it time to replace them?

Answer: Check during your big overhauls.

• Thickness: If the Babbitt layer is worn down to 1/3 of its original thickness, throw it away.
• Surface: If you see cracks, pits, or deep scratches, replace it. Don't wait for it to fail.

Part 4: Troubleshooting

Q7: What if the temperature alarm goes off?

Answer: Follow the Easy to Hard rule:

1. Check Lube System: Is oil pressure okay? Is the oil cooler clogged? Clean the filters.
2. Check Install: Was the clearance set right? Was the scraping done properly?
3. Check Alignment: Misalignment pushes the shaft too hard against the pads.
4. Check the Pad: Open the box. Look for metal chips in the oil or damage on the Babbitt layer.

Part 5: Matching Spare Parts

A Thrust Bearing Pad DG600-240-06-00 needs a healthy support team. Dongfang SRI can supply all of these in one go:

Summary

Managing the Thrust Bearing Pad DG600-240-06-00 is about clean installation, perfect scraping, and constant monitoring. Buying high-quality pads from Dongfang SRI gives you the best foundation. Our pads match original specs and come with full technical support.

HKCYT-2026-01-19