Ingersoll Rand Compressor SSR-EP20

Warning: This procedure requires trained personnel with PPE!

Improper lubrication can be a cause of motor bearing failure. The quantity of grease added should be carefully controlled.

The smaller motors must be greased with a lesser amount of grease than larger motors.

When regreasing, stop motor. Disconnect power; lock out and tag.

Remove outlet plugs (or spring-loaded grease relief plugs if present). The outlet plug may not be accessible on the fan end of some TEFC motors.

Grease relief along shaft can occur, precluding necessity of removing this plug if inaccessible.

The inlet grease gun fittings and outlet plugs (or spring-loaded reliefs) are located at each end of the motor housing.

The drive end reliefs protrude out the circumference of the lower portion of the end bell near a flange bolt.

The drive end outlet plugs are located just behind the flange in the air intake area at about the 5 or 6 o’clock position.

In very clean operating environments and where inlet filter is changed at the above prescribed intervals.

In extremely dirty environments change V-belts, coolant, filters, and separator elements more frequently.

The coolant filter element should be changed after the first 150 hours of operation and every 1200 hours thereafter, or when the coolant is being changed. In dirty operation environments the filter should be changed more frequently.

Use a suitable device and loosen the old element. Use drain pan to catch any leakage during removal. Discard old element.

Wipe the sealing surface of the filter housing with a clean, lint-free rag to prevent the entry of dirt into the system.

Remove the replacement element from its protective package. Apply a small amount of clean lubricant on the rubber seal and install the element.

Screw element on until the seal makes contact with the head of the filter housing. Tighten approximately one-half turn additional.

Start unit and check for leaks.

Inspect discharge temperature (air)

Inspect separator element differential

Inspect air filter Delta P (at full load)

Inspect sheave grooves for foreign material or rubber build-up. Clean and degrease sheaves before installing new belts to insure long belt life.

Install new belts in the reverse order of disassembly.

When installing a new belt, do not pry or force the belt over the sheave grooves.

A belt that is too loose will slip, causing overheating, reduction in belt life, and a loss of compressor efficiency.

Conversely, a belt that is too tight may cause a reduction in belt life and may overload bearings. The proper tensioning method is described as follows:

2. At the center of the sheave span, apply a force (perpendicular to the span) by use of a tension gauge or other calibrated spring.

Warning: Improper lubrication can cause motor bearing failure. The quantity of grease added should be carefully controlled.

Stop motor before regreasing. Disconnect power; lock out and tag.

Outlet plugs or spring-loaded grease relief plugs removed

Drive end outlet plugs located and accessible

Drain hole free of any hard grease

Quantity of grease delivered with each stroke of the lever

Recommended volume of the recommended lubricant added

Motor run for about 30 minutes before replacing outlet plugs or reliefs

Sign off on the motor lubrication