Cornell Pump Company Pump 4NHTB

3200-625 Run-Dry Seal Instructions and Parts Page

Ensure the following conditions are met before proceeding

Purge air from the upper circulation hose to prevent vapor locking

Check for water accumulation in the reservoir

Check if the fluid level depletes rapidly

3200-326 Startup Checklist — Instructions for Pumps with Balance Line and Wear Rings

Is the wear ring clearance within acceptable limits?

Inspect balance lines for obstructions

Check balance lines for pinching, bending, or corrosion

Replace wear rings if clearance exceeds .03" per side

Replace balance lines if pinched, bent, or corroded

3200-632 Maintenance — Instructions for Mechanical Seal

Is the leakage reducing to almost zero?

Examine the assembly for proper seal installation if leakage persists

Ensure the pump is not run dry unless equipped with Run-Dry option

3200-902 Lubrication Instructions — Oil Lubricated Frame Pumps (F5K)

Is the oil renewal interval 3-4 months?

Add oil through the pipe plug opening at the top of the housing

Fill oil to the level indicated on the side of the housing

Ensure no dirt and moisture entered during oil addition

Check oil level when pump is not operating

Select the oil type used based on temperature

3200-625 Run-Dry Seal Instructions and Parts Page

Check the lubricant level in the reservoir

Is the lubricant level above the bottom sight glass?

Purge air from the upper circulation hose if filling the reservoir

Is the reservoir being filled during pump operation?

Is there water accumulation in the reservoir?

Is the fluid level depleting rapidly?

Is there leakage of reservoir fluid from the gland?

Verify the type of lubricant used