Ingersoll Rand Compressor SSR-EP20

Check if discharge air temperature is excessive or if unit shutdown occurs on high air temperature.

Visually check the outside of the cooler cores to be certain that a complete outside cleaning of the cooler is required.

Check if the cooler is covered with a combination of oil, grease or other heavy substances that may affect the unit’s cooling.

Flush the outside cooler core using a safety solvent.

Follow solvent manufacturer’s directions for proper use.

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: 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.

Warning: Ensure you are wearing appropriate PPE and have the correct tools

Loosen temperature control valve element without exerting excess stress on oil piping

Remove faulty temperature control valve element

Start and load unit to check for proper discharge temperature control

Sign off on the valve element replacement

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