C4.4 Industrial Engine Caterpillar


Belt Tension Chart

Usage:

C4.4 444

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
144-0235  Belt Tension Gauge 

Table 2
Belt Tension Chart 
Size of Belt  Width of Belt  Gauge Reading 
Initial Belt Tension(1) Used Belt Tension(2) 
1/2  13.89 mm (0.547 Inch)  535 N (120 lb)  355 N (80 lb) 
Measure the tension of the belt that is farthest from the engine. 
(1) Initial Belt Tension refers to a new belt.
(2) Used Belt Tension refers to a belt that has been in operation for 30 minutes or more at the rated speed.

Install Tooling (A) at the center of the longest free length of belt and check the tension on both belts. Check and adjust the tension on the tightest belt. To adjust the belt tension, refer to Disassembly and Assembly, "Alternator - Install".

Note: A poly v-belt has an automatic belt tensioner. No manual adjustment of the poly v-belt is required.

To replace the poly v-belt, refer to Disassembly and Assembly, "Alternator Belt - Remove and Install".

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