CAT Skid Steer Loader 236D

Warning: Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure.

NOTICE: Mixing ELC with other products will reduce the effectiveness of the coolant. This could result in damage to cooling system components.

Note: The machine was shipped from the factory with Extended Life Coolant (ELC) in the cooling system.

Drain the coolant whenever the coolant is dirty or whenever the coolant is foaming.

Machine cooled down before coolant change?

Engine access door opened and radiator guard raised?

Radiator cap slowly loosened to relieve system pressure?

Drain for the coolant system located?

Access panel under the rear of the machine removed?

Cooling System Coolant Sample (Level 2) - Obtain

NOTICE: Always use a designated pump for oil sampling, and use a separate designated pump for coolant sampling. Using the same pump for both types of samples may contaminate the samples that are being drawn. This contaminate may cause a false analysis and an incorrect interpretation that could lead to concerns by both dealers and customers.

Refer to the Operation and Maintenance Manual, “Access Doors and Covers” for the location of the service points.

Warning: Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure.

Obtain the sample of the coolant from the radiator. When the system is cool, slowly remove the radiator cap (2).

Note: Do not take the sample from the Coolant Overflow Reservoir.

Obtain the sample of the coolant as close as possible to the recommended sampling interval. Supplies for collecting samples can be obtained from your Cat dealer.

Refer to Operation and Maintenance Manual, “Cooling System Coolant Sample (Level 1) - Obtain” for the guidelines for proper sampling of the coolant.

Submit the sample for Level 2 analysis.

Engine Crankcase Breather - Replace

Note: Only applies to engines with aftertreatment.

Open the engine access door. Refer to Operation and Maintenance Manual, “Access Doors and Covers”.

Tilt the radiator upward. Refer to Operation and Maintenance Manual, “Radiator Tilting”.

The breather is located in the engine compartment on the right-hand side of engine. There is cap on the breather and a replaceable element inside.

Note: This service may be performed without removing the housing from the engine.

Remove the breather cap and remove the filter element.

Note: The C2.2 and C3.3B are equipped with cap on bottom portion of the canister. Use a wrench to remove the breather cap. The C3.8 is equipped with cap on top of canister, remove cap by applying downward pressure on the cap while turning.

Clean the housing and the cap for the breather.

Cooling System Coolant Extender (ELC) - Add

When a Cat Extended Life Coolant is used, an extender must be added to the cooling system periodically.

Open the engine access door and raise the radiator guard. Refer to Operation and Maintenance Manual, “Access Doors and Covers”.

Note: The radiator cap may be located either on the left side of the radiator (C3.3B and C3.8 engines) or the right side of the radiator (C2.2 engine).

Slowly loosen the radiator cap in order to relieve system pressure. Remove the radiator cap.

If necessary, drain enough coolant from the radiator in order to allow the addition of the coolant additive.

Add 0.17 L (0.18 qt) of cooling system additive.

Inspect the radiator cap and the gasket. If the cap or the gasket is damaged, replace the cap. Install the radiator cap.

Check the coolant level in the sight gauge on the radiator. Maintain the coolant level to the top of the sight gauge with the radiator in the LOWERED position.

Warning: Fingers can be burned from hot pins and bushings. The pins and bushings in a dry joint can become very hot. It is possible to burn the fingers if there is more than brief contact with these components.

Use the recommendations to extend the life of the undercarriage. Use the recommendations to avoid excessive downtime.

During the machine operation, listen for unusual squeaking and for unusual squealing. This noise can indicate a dry joint.

Check the machine for dry joints weekly. Check for dry joints immediately after machine operation. After machine operation, lightly touch the end of each track pin or bushing. Touch the track pin or the track bushing with the back of your hand. Make a mark on any dry track pin joint that is hot to the touch.

Consult the Custom Track Service expert at any Cat dealer if you detect dry joints or leaks. The Custom Track Service expert at the Cat dealer can perform track inspection.

Sign off on the 50 Hourly Skid Steer Loader Maintenance