Cornell Pump Company Pump 6NNT

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

3200-625 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 necessary

Is there any water accumulation in the reservoir?

Is the fluid level depleting rapidly?

Is there leakage of reservoir fluid from the gland?

Use recommended reservoir lubricant

3200-901 Lubrication Instructions — Grease Lubricated Frame Pumps (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)

Verify grease compatibility with manufacturer's products

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

Verify cleanliness of grease and fittings before adding grease

3200-901 Lubrication Instructions — Grease Lubricated Frame Pumps (Frame sizes 6-7-8-16)

3200-625 Run-Dry Seal Instructions and Parts Page

Ensure correct fluid type is used

Purge air from the upper circulation hose to prevent vapor locking

Check for water accumulation in the reservoir

Check if fluid level depletes rapidly

3200-992 Cutter Modification Kit — Adjusting

Ensure all safety precautions are followed

Disconnect external connections to gain access to suction inlet of pump

Isolate and lockout all power to the pump and motor

Remove the coupling guard for manual rotation of the pump

Loosen cap screws holding stationary cutter plate to volute casing or suction cover

Bottom out the stationary cutter plate to the rotating cutter ring

Set stationary cutter plate to rotating cutter ring clearance between .010"-.020" using adjustable set screws