HEATER AS 1554911 - Caterpillar

Removal Procedure
The engine can start automatically. Ensure that the power supply is isolated before any service or repairs is performed.
Turn the battery disconnect switch to the OFF position.
If the engine is equipped with an air starting motor. Turn the air supply at the air reservoir to the OFF position. Ensure that the air pressure is drained from the starting air system.
Illustration 1 g03723014
Disconnect hose assembly (1) from fuel cooler (3). Remove O-ring seal (2) (not shown). Use suitable plug and caps in order to plug the hose assembly and cap the fuel cooler.
Disconnect hose assembly (5) from fuel cooler (3). Remove O-ring seal (6) (not shown). Use suitable plug and caps in order to plug the hose assembly and cap the fuel cooler.
Remove bolts (4) fuel cooler (3). Remove the fuel cooler from the radiator guard. Support the weight of the fuel cooler as the bolts are removed.
If necessary, disconnect hose assembly (1) from connection (9). Remove O-ring seal (7) (not shown). Use suitable plug and caps in order to plug the hose assembly and cap the connection.
If necessary, disconnect hose assembly (5) from connection (10). Remove O-ring seal (8) (not shown). Use suitable plug and caps in order to plug the hose assembly and cap the connection.
Illustration 2 g03723031
If necessary, follow Step 2.d through Step 2.g in order to disassemble fuel cooler (3).
Remove adapter (15) from fuel cooler (3). Remove O-ring seal (14).
Remove adapter (17) from fuel cooler (3). Remove O-ring seal (16).
Make temporary marks on bracket (11). Remove bolts (12). Remove the bracket from fuel cooler (3).
Make temporary marks on bracket (13). Remove bolts (18) (not shown). Remove the bracket from fuel cooler (3). Installation Procedure
Ensure that the fuel cooler is free from wear, damage. and restriction.
Illustration 3 g03723031
If necessary, follow Step 2.b through Step 2.g in order to assemble fuel cooler (3).
Position bracket (13) onto fuel cooler (3). Ensure that the bracket is aligned with the temporary marks. Install bolts (18) (not shown) hand tight.
Position bracket (11) onto fuel cooler (3). Ensure that the bracket is aligned with the temporary marks. Install bolts (12) hand tight.
Install a new O-ring seal (14) into the connection on the fuel cooler (3). Ensure that the O-ring seal is correctly seated into the recess of the connection of the fuel cooler.
Install adapter (15) to fuel cooler (3). Tighten the tube nut for the hose assembly to a torque of 40 N m (30 lb ft).
Install a new O-ring seal (16) into the connection on the fuel cooler (3). Ensure that the O-ring seal is correctly seated into the recess of the connection of the fuel cooler.
Install adapter (17) to fuel cooler (3). Tighten the tube nut for the hose assembly to a torque of 40 N m (30 lb ft).
Tighten bolts (12) and bolts (18) (not shown) to a torque of 10 N m (89 lb in). Ensure that bracket (11) and bracket (13) are correctly aligned.
Illustration 4 g03723014
If necessary, follow Step 3.a through Step 3.d in order to install hose assembly (1)