V-BELT SET 9L2520 - Caterpillar

(1) 2F7743 Spring (for detent): Length under test force ... .343 in.(8.71 mm)Test force ... 14.2 to 16.7 lb.(63.0 to 74.5 N)Free length after test ... .468 in.(11.89 mm)Outside diameter ... .430 in.(10.92 mm)(2) 8M6402 Spring (outer): One red stripeLength under test force ... 3.38 in.(85.9 mm)Test force ... 189 15 lb.(840 67 N)Free length after test ... 4.35 in.(110.5 mm)Outside diameter ... .78 in.(19.8 mm)(3) 8M6403 Spring (inner): Length under test force ... 3.38 in.(85.9 mm)Test force ... 63.0 5 lb.(280 22 N)Free length after test ... 4.13 in.(104.9 mm)Outside diameter ... .426 in.(10.82 mm)(4) 7M7244 Spring (check valve): Length under test force ... .49 in.(12.4 mm)Test force ... 1.5 .1 lb.(6.0 0.4 N)Free length after test ... 2.00 in.(50.8 mm)Outside diameter ... .50 in.(12.7 mm)(5) Adjust pressure setting with control lever in the NEUTRAL position, oil temperature at 150° F (65° C) and engine at LOW IDLE. Oil pressure should be 35 5 psi (240 35 kPa). With control lever in AHEAD or ASTERN, oil temperature at 150° F (65° C) and engine at LOW IDLE, oil pressure should be 252 8 psi (1734 55 kPa). Oil pressure at HIGH IDLE and control lever in NEUTRAL position should be 272 8 psi (1870 55 kPa).One 5M3492 Spacer .010 in. (0.25 mm) thick gives approximately 3.56 psi (24.4 kPa) pressure change.One 7M1397 Spacer .036 in. (0.91 mm) thick gives approximately 12.82 psi (88.7 kPa) pressure change.Add a spacer to increase or remove a spacer to decrease the oil pressure from the valve. Tighten five bolts in alphabetic sequence (A, B, C, D, E) to a torque of ... 25 2 lb. ft.(35 3 N m)(6) 5M9548 Spring (for poppet in relief valve): Length under test force ... .84 in.(21.3 mm)Test force ... 1.0 .08 lb.(4.4 0.4 N)Free length after test ... 1.34 in.(34.0 mm)Outside diameter ... .48 in.(12.2 mm)