Ingersoll Rand Air Compressor SSR-ML75

Induction-type squirrel cage motor lubrication

The motor has anti-friction ball or roller bearings front and rear. At extended intervals they require relubrication.

The periods between re-greasings of the motor bearings can vary, primarily with the security of the service conditions under which the motor operates.

For severe duty - Dusty locations - High Ambients, reduce time intervals in table above to 1/3 the listed value.

Sign off on the motor lubrication

CAUTION! Grease should only be added when the motor is stopped and power disconnected.

Motor stopped and power disconnected?

When regreasing, stop motor and remove inlet and outlet plugs.

Inlet and outlet plugs removed?

Inlet grease gun fittings and spring-loaded outlets are arranged at each end on the motor housing. Use a hand lever type grease gun.

Hand lever type grease gun used?

Determine in advance the quantity of grease delivered with each stroke of the lever. Add grease in the following quantity: 3/4 cu. in. or 0.6 oz. (13.0 c.c. or 18 grams)

Quantity of grease delivered with each stroke of the lever

Do not expect grease to appear at the outlet, but if it does discontinue greasing at once.

CAUTION! Shut down the compressor, close the service air line isolation valve and open the main electrical disconnect switch. Confirm all air pressure is relieved from receiver.

Differential pressure across the element reaches three times the initial pressure drop or a maximum of 15 psi at full load?

Differential pressure dropped to zero?

NOTE: A drop to zero differential also indicates a failing or by passing element that must be replaced.

Disconnected the scavenge tube at the airend?

Loosened the fitting that holds the scavenge tube into the tank and withdrawn the tube assembly?

Disconnected the piping from the receiver cover?

Removed the bolts that hold the tank cover in position and removed cover by lifting up and away?

Lifted the separator element up and out of the tank and discarded the faulty element?

Warning: Care should be exercised during these lamp checks because of the electrical hazards that will be present when the electrical box is open.

Safety shutdown devices functional

Problem warning lights functional

Power On (1LT) lamp lights up when power is applied to the transformer

Coolant Filter Lamp (3LT) lights up when power is applied to (3B-12)

Air Filter Warning Lamp (4LT) lights up when power is applied to (3B-13)

Automatic Restart Lamp (14LT) lights up when power is applied to (3B-8)

WARNING! Confirm all pressure is relieved from the compressor system and that the main electric disconnect switch is open and tagged to remain open.

Pressure relieved from the compressor system?

Main electric disconnect switch is open and tagged to remain open?

Place a suitable container under the filter housing drain valve which is located near the bottom of the housing.

Container placed under the filter housing drain valve?

Remove the bolt at the bottom of the housing. This will free the housing and element from the filter head. Remove the 'O' ring gasket.

Bolt and 'O' ring gasket removed?

Inspect the element and housing for foreign particles which have been trapped in the element and also for general overall condition - then discard the element and clean the housing.

Element and housing inspected and cleaned?