Cornell Pump Company Pump 4NNT

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

Lubrication Instructions for Frame Sizes 2-5-11 and EM309

Enter the total running time between regreasing (hours)

Enter the approximate amount of grease per line fitting (cubic inches)

Remove plastic cover from zerk fittings and ensure cleanliness

Use hand-operated grease gun to pump grease into each bearing cavity

Ensure surplus grease goes through the bearing into the center part of the frame

Ensure grease and fittings are absolutely clean

Lubrication Instructions for Frame Sizes 6-7-8-16 (60B4 through 68B4)

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 with lubricant

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?

Recommended reservoir lubricant

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

Verify frame size and oil capacity

Is the oil renewal interval within 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

Is the oil level maintained when the pump is not operating?

Verify oil type based on temperature

Measure the bearing frame temperature at the drain connection

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