MAGNETO ASSEMBLY 8M9145 - Caterpillar

Torque for 11 bolts that hold the end covers to the valve body ... 28 4 N (22 3 lb ft)(1) 7S2979 Spring (inner) for the combination valve: Length under test force ... 79.3 mm (3.12 in)Test force ... 46.0 3.7 N (10.35 .83 lb)Free length after test ... 115.3 mm (4.54 in)Outside diameter ... 17.37 mm (.684 in)(2) 7S2987 Spring (outer) for the combination valve: Color code ... red stripeLength under test force ... 48.5 mm (1.91 in)Test force ... 100 N (22.4 1.8 lb)Free length after test ... 100.3 mm (3.95 in)Outside diameter ... 33.32 mm (1.312 in)(3) 6P6903 Spring (inner) for the modulation relief valve: Length under test force ... 172.47 mm (6.790 in)Test force ... 62.2 6.2 N (13.98 1.40 lb)Free length after test ... 179.37 mm (7.062 in)Outside diameter ... 17.07 mm (.672 in)(4) 2P3585 Spring (outer) for the modulation relief valve: First Test:Length under test force ... 110.54 mm (4.352 in)Test force ... 52 4 N (11.8 .9 lb)Second Test:Length under test force ... 81.97 mm (3.227 in)Test force ... 313 12 N (70.5 2.7 lb)Free length after test ... 115.8 mm (4.56 in)Outside diameter ... 24.38 mm (.960 in)(5) 4M2381 Spring: Length under test force ... 12.2 mm (.48 in)Test force ... 2.30 0.18 N (.517 .041 lb)Free length after test ... 22.6 mm (.89 in)Outside diameter ... 7.62 mm (.300 in)