Caterpillar Skid Steer Loader 226B

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Note: The three cylinder and the four cylinder engines have different exhaust manifolds. The installation procedure is similar for all models.

Ensure that the mating surfaces of the cylinder head and the exhaust manifold are clean and free from damage.

If necessary, install exhaust manifold studs (2) to cylinder head (1).

Install a new exhaust manifold gasket (3) to cylinder head (1).

Align exhaust manifold (4) with studs (2) and install the exhaust manifold to cylinder head (1). Note: Ensure that the exhaust manifold is installed in the correct orientation.

Install nuts (5) and bolts (6) finger tight. Note: Ensure that bolts of different lengths are installed in the correct positions.

For the C1.1 and C1.5 engines, tighten nuts (5) and bolts (6) to a torque of 10 N·m (89 lb in). For the C2.2 engine, tighten nuts (5) and bolts (6) to a torque of 25 N·m (18 lb ft). Note: Tighten the inner bolts first.

End By: a. If the engine is equipped with a turbocharger, install the turbocharger. Refer to Disassembly and Assembly, 'Turbocharger - Remove and Install'.

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

NOTICE: Do not turn the crankshaft while the valve springs are removed.

NOTICE: Plug the apertures for the push rods in the cylinder head in order to prevent the entry of loose parts into the engine.

NOTICE: Install suitable plugs to the inlet ports of the cylinder head in order to prevent the entry of loose parts into the engine.

Inspect the valve springs for the correct length. Refer to Specifications, 'Cylinder Head Valves'.

Install valve spring (3) onto the cylinder head. Position valve spring retainer (2) onto valve spring (3).

WARNING: Improper assembly of parts that are spring loaded can cause bodily injury.

Sign off on the valve springs installation

NOTICE: Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Dispose of all fluids according to local regulations and mandates.

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Fuel injector removed using a deep socket

Seat washer removed from the cylinder head

All openings capped or plugged immediately

Sign off on the fuel injector removal

Start by removing the rocker shaft assembly. Refer to Disassembly and Assembly, 'Rocker Shaft and Pushrod - Remove'.

WARNING: Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

NOTICE: Install suitable plugs to the inlet ports of the cylinder head in order to prevent the entry of loose parts into the engine.

NOTICE: Plug the apertures for the push rods in the cylinder head in order to prevent the entry of loose parts into the engine.

Note: The removal procedure is similar for the three cylinder and the four cylinder engines. The following procedure should be adopted to remove the valve springs when the cylinder head is installed to the engine.

Note: Ensure that the appropriate piston is at the top center position before the valve spring is removed. Failure to ensure that the piston is at the top center position may allow the valve to drop into the cylinder bore.

Did you follow Steps 1.a through 1.d to position the appropriate piston at top center?

Did you install Tooling (A) and (B) in position on the cylinder head to compress a valve spring for the appropriate piston?

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Note: The installation procedure is similar for the three cylinder and the four cylinder engines. The Illustrations show a four cylinder engine.

Clean the mating surfaces of the cylinder block and the fuel injection pump.

Enter the correct thickness and the correct number of shims (3) on the mounting face of the cylinder block.

Position fuel injection pump (1) close to the mounting face of the cylinder block, and connect link (6) and fuel rack control (5) with clip (7).

Align fuel injection pump (1) with the studs on the cylinder block. Install the fuel injection pump to the cylinder block.

Install bolts (4) and nuts (2). Ensure that the tube clip for the engine oil line is secured by the appropriate fastener.

Enter the torque value for bolts (4) and nuts (2)

Install the fuel injection lines.