VALVE GP-MAIN CONTROL 1163472 - Caterpillar

Raise the temperature of bearing cones (16) and (17). install bearing cones (16) and (17) .
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Install bevel gear (19) onto the differential. Apply Tooling (L) to the threads of bolts (18). Install bolts (18) and tighten bolts (18) to a torque of 190 N m (140 lb ft).
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Install sleeves (3) into the central housing.
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Position brake cylinders (1) on a flat surface. Use Tooling (G) and install bearing cups (15) .
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Use Tooling (A) and install spanner nut (14) .
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Note: Check the O-ring seals for wear or for damage. If necessary, replace the O-ring seals.
Install O-ring seals (9) and (11) onto actuation pins (10). Install actuation pins (10) into piston (5). Install plugs (8). Apply a light coat of grease onto O-ring seals (9) and (11) .
Illustration 26 g01076777
Note: Check the O-ring seals for wear or for damage. If necessary, replace the O-ring seals.
Apply a light coat of grease onto O-ring seals (6) and (7). Install O-ring seals (6) and (7). Install piston (5) into brake cylinder (1). Install bevel washers (4) .
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Apply Tooling (M) to the mating surfaces of the center housing and the left brake cylinder (1). Align the location marks that were made during the removal procedure. Position brake cylinder (1) onto the center housing and install bolts (2). Tighten bolts (2) to a torque of 79 N m (58 lb ft).
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Install the differential into the right side of the center housing.
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Apply Tooling (M) to the mating surfaces of the center housing and the right brake cylinder (1). Align the location marks that were made during the removal procedure. Position brake cylinder (1) onto the center housing and install bolts (2). Tighten bolts (2) to a torque of 79 N m (58 lb ft).
Oscillate the pinion shaft and use Tooling (A) to advance the spanner nuts until there is slight backlash with no end play.
Install a dial type torque wrench onto the pinion shaft. Measure the total rotating torque. Use the following formula in order to calculate the total rotating torque (TRT): P equals the rotating torque that was measured in Step 13. TRT = P + 3.66 N m (32.0 lb in) to P + 5.52 N m (49.0 lb in)
If the total rotating torque (TRT) is less than the specified amount tighten both spanner nuts equally. If the total rotating torque (TRT) is greater than the specified amount, loosen both spanner nuts equally. Be sure to always maintain slight backlash.
Mount Tooling (N) onto the center housing, as shown. Measure the backlash between the pinion and the bevel gear. The proper backlash setting is 0.20 to 0.28 mm (0.0079 to 0.0110 inch).
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If the backlash is not within the specification, retract one spanner nut and advance the opposite spanner nut equally. This will maintain the bearing preload. If the backlash is less than the specified amount, move the bevel gear in Direction (A). If the backlash is greater than the specified amount, move the bevel gear in Direction