CAT Portable Generator RP5500

Ensure that all safety information, warnings, and instructions are read and understood before any maintenance procedures are performed.

Use service hours or calendar time, whichever occurs first, to determine the correct maintenance intervals.

Stop the engine before servicing. Put the engine in horizontal position and remove the spark plug cap to prevent the engine from starting. Do not operate the engine in an unventilated room or other enclosed area.

Operate the engine until it reaches normal operating temperature. Stop the engine and use a suitable container to collect the used oil.

Remove the oil filler cap (1) and drain plug (3) to drain the oil.

Reinstall the drain plug and tighten to 18 ± 2 lb ft (24 ± 3Nm).

Refill the oil and check the oil level. Refer to Engine Oil Level – Check.

Install and tighten the oil filler cap.

Dispose of the used oil properly.

Ensure that all safety information, warnings, and instructions are read and understood before any maintenance procedures are performed.

Use service hours or calendar time, WHICH EVER OCCURS FIRST, to determine the correct maintenance intervals.

Stop the engine before servicing. Put the engine in horizontal position and remove the spark plug cap to prevent the engine from starting. Do not operate the engine in an unventilated room or other enclosed area.

-Spark Arrestor - Inspect/Clean/Replace

This unit has a spark arrestor fitted to the exhaust outlet of the muffler. The spark arrestor should be cleaned with a soft wire brush after every 50 hours or 3 months of use. The spark arrestor should be replaced after every 100 hours of operation or if it becomes damaged.

WARNING: Hot parts or hot components can cause burns or personal injury. Do not allow hot parts or components to contact your skin. Use protective clothing or protective equipment to protect your skin.

DO NOT perform this maintenance procedure until the muffler has cooled.

Remove screws (2). Remove spark arrestor (1)

Ensure that all safety information, warnings, and instructions are read and understood before any maintenance procedures are performed.

Use service hours or calendar time, WHICH EVER OCCURS FIRST, to determine the correct maintenance intervals.

Stop the engine before servicing. Put the engine in horizontal position and remove the spark plug cap to prevent the engine from starting.

Do not operate the engine in an unventilated room or other enclosed area.

Once a month start the engine and run the engine until it reaches normal operating temperature (about 20 minutes).; Plug in a corded device and turn on the device to ensure that the generator is providing power. Once you have verified that the generator is providing power, turn off the device and unplug it. Then turn the generator off.

NOTE: Use only genuine Caterpillar parts.;

Ensure that all safety information, warnings, and instructions are read and understood before any maintenance procedures are performed.

Use service hours or calendar time, WHICH EVER OCCURS FIRST, to determine the correct maintenance intervals.

Stop the engine before servicing. Put the engine in horizontal position and remove the spark plug cap to prevent the engine from starting. Do not operate the engine in an unventilated room or other enclosed area.

-Spark Plug – Inspect/Adjust/Replace

Refer to the Specifications section of this manual to determine the proper spark plug part number and spark plug gap for your product.

2. Remove the spark plug cap (3).

3. Use the plug wrench (1) to remove the spark plug.

4. Visually check the spark plug to see if it is damaged. If the insulator is cracked, replace the spark plug. If the electrode is damaged, replace the spark plug.

Ensure that all safety information, warnings, and instructions are read and understood before any maintenance procedures are performed.

Use service hours or calendar time, WHICH EVER OCCURS FIRST, to determine the correct maintenance intervals.

Stop the engine before servicing. Put the engine in horizontal position and remove the spark plug cap to prevent the engine from starting. Do not operate the engine in an unventilated room or other enclosed area.

Engine stopped and in horizontal position?

Fuel Tank Cap and Strainer – Clean

Fuel cap and surrounding area wiped clean?

Wiping off the fuel cap and surrounding area before removing the fuel cap helps to reduce the amount of contaminants allowed into the fuel system.

Is there a build-up of debris in the fuel strainer?