PLATE-WEAR 4688259 - Caterpillar

(1) 8R-0923 Spring for disengaging service brake: Length under test force ... 27.3 mm (1.07 in)Test force ... 334.8 N (75.24 lb)Free length after test ... 37.24 mm (1.466 in)Outside diameter ... 21.84 mm (.860 in)(2) Thickness of new 6I-8030 Friction Disc ... 9.10 0.13 mm (.358 .005 in)Minimum average permissible friction material thickness ... 7.65 mm (.301 in)Minimum depth of oil groove ... 0.32 mm (.012 in)(3) Thickness of new 8R-0942 plate ... 23.37 mm (.920 in)(4) Thickness of new 100-3596 piston ... 33 mm (1.6 in)(7) Thickness of new 100-3597 plate ... 10 mm (.393 in) When brake service is required, replace friction disc (2) and piston o-ring seals (5) and (6). Lubricate plates (3,7) and disc (2).