CAT Skid Steer Loader 272D

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.

If a new belt is installed, check the belt adjustment after 30 minutes of operation. A belt is considered used after 30 minutes of operation.

1. Stop the engine in order to inspect the belt.

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

3. Loosen the quarter-turn fasteners (1) on the front of the guard.

4. Remove the guard for the V-belt.

5. Inspect the condition of the belt and the adjustment of the belt. The belt should deflect 10 mm (0.39 inch) to 12 mm (0.47 inch) under a straight pull of 10 kg (22 lb). This measurement should be taken between the alternator pulley and the crankshaft pulley.

Note: A 144-0235 Borroughs Belt Tension Gauge may be used to measure belt tension. This measurement should be taken between the alternator pulley and the crankshaft pulley. Refer to the following table for belt tension.

6. Loosen the mounting bolt (4). Loosen the adjusting bolt (5).

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.

Is the radiator cool before changing the coolant?

Did you open the engine access door and raise the radiator guard?

Did you slowly loosen the radiator cap to relieve system pressure and remove the cap?

Did you locate the drain for the coolant system?

Did you remove the access panel under the rear of the machine and pull the drain hose through the access hole?

Inspect the track visually for damage or missing fasteners

Replace any grousers that are damaged

Replace any fasteners that are missing

Loosen the greaser with an appropriate wrench or socket to relax the tension on the track

Tighten the greaser and apply grease to it until the proper tension is achieved

Check the torque for the track grouser bolts and the master link bolts

Inspect the track visually for damage or missing fasteners

Replace any grousers that are damaged

Replace any fasteners that are missing

Loosen the greaser with an appropriate wrench or socket to relax the tension on the track

Tighten the greaser to tighten the tension on the track

Apply grease to the greaser until the proper tension is achieved