CAT Skid Steer Loader 226D

1. Stop the engine to replace 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 belt protection guard, and remove guard to access belt.

4. Loosen the mounting bolt and adjusting bolt, decrease tension in belt.

6. Install new belt. Be sure that the belt is fully seated on the pulleys.

7. Move the alternator until the correct tension 534 ± 22 N·m (120 ± 5 lb) is reached.

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.

Air Cleaner Dust Valve - Clean/Inspect

Bogie and Idler - Inspect/Replace

Engine Compartment - Inspect/Clean

Equipment Lowering Control Valve - Check

Fuel System Primary Filter (Water Separator) Drain

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.

If Caterpillar products are not available and commercial products must be used, make sure they have passed the Caterpillar EC-1 specification for premixed or concentrate coolants and Caterpillar Extender.

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

For information about the addition of Extender to your cooling system, see the Operation and Maintenance Manual, “Cooling System Coolant (ELC) Extender - Add” or consult your Cat dealer.

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

The radiator cap is located under the radiator guard on the top of the engine compartment.

Allow the machine to cool before you change the coolant.

Open the engine access door and raise the radiator guard.

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.

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: 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.

Warning: Personal injury or death can result without releasing all of the hydraulic pressure. Release all the pressure from the hydraulic system before any lines are disconnected.

Personal injury can result from contact with refrigerant. Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury. Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant.

Personal injury or death can result from inhaling refrigerant through a lit cigarette. Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas, can cause bodily harm or death. Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.

NOTICE: If the refrigerant system has been open to the outside air (without being plugged) for more than 30 minutes, the receiver-dryer must be replaced. Moisture will enter an open refrigerant system and cause corrosion which will lead to component failure.

Cooling System Coolant Sample (Level 2) - Obtain