TM 5-3895-382-24 Belt Tension Chart SMCS Code: 1357 Table 20 Belt Tension Chart Gauge Reading Borroughs Gauge Numbers Belt Size Belt Width Belt Tension “Initial” ⁽¹⁾ Belt Tension “Used” ⁽²⁾ Old Gauge Number New Gauge Number 3/8 10.72 mm (0.422 Inch) 445 ± 22 N (100 ± 5 lb) 400 ± 22 N (90 ± 5 lb) BT-33-95 BT-33-97 1/2 13.89 mm (0.547 Inch) 534 ± 22 N (120 ± 5 lb) 400 ± 44 N (90 ± 10 lb) BT-33-95 BT-33-97 5V 15.88 mm (0.626 Inch) 534 ± 22 N (120 ± 5 lb) 400 ± 44 N (90 ± 10 Ib) BT-33-72 BT-33-72C 11/16 17.48 mm (0.688 Inch) 534 ± 22 N (120 ± 5 lb) 400 ± 44 N (90 ± 10 lb) BT-33-72 BT-33-72C 3/4 19.05 mm (0.750 Inch) 534 ± 22 N (120 ± 5 lb) 400 ± 44 N (90 ± 10 lb) BT-33-72 BT-33-72C 15/16 23.83 mm (0.983 Inch) 534 ± 22 N (120 ± 5 lb) 400 ± 44 N (90 ± 10 Ib) BT-33-72 BT-33-77 8K 27.92 mm (1.099 Inch) 800 ± 22 N (180 ± 5 lb) 489 ± 44 N (110 ± 10 lb) ------ BT-33-109 6PK 20.94 mm (0.824 Inch) 667 ± 22 N (150 ± 5 lb) 467 ± 44 N (105 ± 10 lb) ------ BT-33-109 Measure the tension of the belt that is farthest from the engine. (1) Belt Tension "Initial" is used for a new belt. (2) Belt Tension 'Used" is for a belt with over 30 minutes of operation at the rated speed. Basic Block SMCS Code: 1200 Cylinder Liner Projection Table 21 Tools Needed 8T-0455 Linear Projection Tool Group 1 Illustration 84 8T-0455 Liner Projection Tool Group. (1) 1P-2403 Dial indicator (2) 1P-2402 Gauge body (3) 1P-5507 Gauge block 6-86