OPTION AR-CONFIGURATION 3338112 - Caterpillar

Rubber toric seals and all surfaces in contact with them must be clean and dry at assembly. Put a thin layer of oil on the surfaces of the metal seals that are in contact just before installation. Put lubricant on all other seals at assembly. Seal rings must be assembled square with the bore and toric must not be bulged or twisted. (A) See New And Use Again Dimensions For Parts In Service Brakes.(7) Oil friction discs at assembly with lubricant being used.(8) Lubricate bore lightly with lubricant being sealed.(9) Torque for bolts ... 40 7 N m (30 5 lb ft)(10) 9J-5498 Spring: Test length ... 46.02 mm (1.812 in)Test force ... 200 10 N (45 2 lb)Free length after test ... 68.8 mm (2.71 in)Outside diameter ... 20.96 mm (.825 in)(12) Torque for bolts ... 240 40 N m (175 29 lb ft)(13) Torque for bolts ... 240 40 N m (175 29 lb ft)Shim Adjustment Procedure
1. Assemble complete brake group with no shims (1) under retainer (3).2. Put flange end of wheel spindle (4) down.3. Tighten three bolts (2) to a torque of 48 N m (35 lb ft) while turning spindle housing (11).4. Remove bolts (2) and retainer (3), but do not turn housing (11).5. Measure distance from end of spindle (4) to end of sprocket (5).6. Install shims (1) of this thickness less 0.25 to 0.38 mm (.010 to .015 in). If total shim thickness is more than 1.02 mm (.040 in), use a 9D-7085 Shim as part of shim thickness needed. If total shim thickness is more than 1.52 mm (.060 in), use two 9D-7085 Shims.7. Install retainer and bolts. Tighten bolts (2) to a torque of 260 14 N m (190 10 lb ft).