GEAR-SUN 9P4903 - Caterpillar

Pressure for speed (downshift) change ... 12 750 170 kPa (1850 25 psi)Pressure for speed (upshift) change ... 6000 515 kPa (875 75 psi)(1) 2M3790 Spring: Length under test force ... 20.6 mm (.81 in)Test force ... 77 6 N (17.2 1.4 lb)Free length after test ... 48.8 mm (1.92 in)Outside diameter ... 33.5 mm (1.32 in)(2) 3J2978 Spring: Length under test force ... 54.4 mm (2.14 in)Test force ... 236 9 N (53 2 lb)Free length after test ... 95.0 2.8 mm (3.74 .11 in)Outside diameter ... 26.9 mm (1.06 in)(3) 3J2977 Spring: Length under test force ... 52.3 mm (2.06 in)Test force ... 405 18 N (91 4 lb)Free length after test ... 91.7 2.8 mm (3.61 .11 in)Outside diameter ... 38.1 mm (1.50 in)(4) 3J2979 Shim (valve adjusting): Shim thickness ... 1.52 0.15 mm (.060 .006 in)One shim will change pressure ... 414 kPa (60 psi)