Ingersoll Rand Compressor N75H Single Stage

Predictive Maintenance Overview

Incorporate coolant analysis into Preventative Maintenance programs

Incorporate vibration analysis into Preventative Maintenance programs

Use diagnostic tools for analysis

Baseline Establishment and Monitoring

Record initial baseline for normal operation

Monitor fluid conditions regularly

Monitor vibration conditions regularly

Ensure compressor is electrically isolated for at least 15 minutes before commencing any maintenance work.

Isolate the compressor from the system.

Fully discharge the compressed air within the unit.

Remove plastic tube from the fitting located on the bottom of the moisture separator.

Remove the bowl of the moisture trap, clean and replace.

Rotate the blower motor several revolutions by hand in the direction of rotation

Pump grease into the bearing while rotating the motor

Is grease visible at the relief port?

Rotate the motor every three months until the unit is placed in service

Long-term Storage Consideration

Is the storage time expected to exceed nine months?

Order the compressor for long-term storage if storage exceeds nine months

Inspect the condition of the coolant hoses

Remove the old hose if replacement is necessary

Install the new hose if replacement was necessary

Drain the coolant into a clean container

Use a new charge of coolant if contaminated

Separator Element Inspection and Replacement

Check separator differential pressure via the Intellisys controller

Was the separator element replaced?

Separator Element Change Procedure

Remove all capscrews securing the cover to the tank except the screw opposite the pivot bolt

Rotate the jacking bolt clockwise until the cover lifts off the tank

Rotate the cover to allow access to inside the tank

Carefully lift out the element spacer and retain for reassembly

Carefully withdraw the used element, place it in a sealed bag and dispose of it safely