HOSE AS 1504603 - Caterpillar

Installation Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     9U-7370     Belt Tension Test Tool     1    
B     6V-2012     Depth Micrometer     1    
Verify that all of the components are clean and free of foreign material prior to installation. Inspect all components for wear and replace the components, if necessary.
Illustration 1 g00585940
Position a suitable lifting device to fan drive pulley (6), as shown. Secure the lifting device to a hoist. As a unit, position bracket assembly (4), fan drive pulley (6) and belt tightener (3) to the engine, as shown. The weight of bracket assembly (4), fan drive pulley (6) and belt tightener (3) as a unit is 175 kg (386 lb).
Install eight bolts (7) and the washers that hold bracket assembly (4) to the engine.
Illustration 2 g00586954
Ensure that the measured difference (X) between the leading edge of crankshaft pulley (8) and the leading edge of fan drive pulley (6) is 1.6 3.0 mm (0.063 0.118 inch).
Position a straight edge (not shown) across the leading edge of crankshaft pulley (8). The straight edge should extend across the face of fan drive pulley (6). Use Tool (B) (not shown) in order to measure the difference (X) .
Illustration 3 g00590422
If necessary, remove three bolts (9) that hold crankshaft pulley (8) to bushing (10). Remove crankshaft pulley (8) from bushing (10). Loosen the set screw (not shown). Reposition bushing (10) on the stub shaft. Tighten the set screw (not shown) and install three bolts (9) that hold crankshaft pulley (8) to bushing (10) .
Repeat Steps 4, 5, and 6 until the correct measured difference of 1.6 3.0 mm (0.063 0.118 inch) has been achieved.
Illustration 4 g00585953
Connect tube assembly (5) to fan drive pulley (4) .
Illustration 5 g00585932
Connect hose assembly (2) to belt tightener (3) .
Illustration 6 g00585927
The V-belts are under tension from the spring. If the wrench slips while releasing the belt tension, personal injury may result. Be sure the wrench is properly engaged with the belt tightener.
Position a wrench on the belt tightener and carefully apply tension to the springs. Install six V-belts (1), as shown.
Use Tool (A) (not shown) in order to measure the belt tension. Refer to Specifications, "Belt Tension Chart" for the correct belt tension.End By: Install the radiator. Refer to Disassembly and Assembly, "Radiator - Remove".