PIPE AS 5498130 - Caterpillar

Inspection of Gears
Check Of Gear Wear
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Play in gear
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Check the wear of the gears (C) by maintaining the frame in one direction.Note: The maximum recommended play in the gears is 3.175 mm (0.125 inch).Replacement Of a Gear Segment
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Remove 4 bolts (21) from gear segment (22). Dislodge gear segment (22) by threading 2 puller bolts (23) into the removal holes.
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Torque the bolts in the sequence that is shown in Illustration 9. Torque the bolts three times. Start with the first sequence.First sequence ... 203 N m (150 lb ft)Second sequence ... 339 N m (250 lb ft)Third sequence ... 513 N m (378 lb ft)Inspection of the Gear On the Adapter
Main Gear Removal
Remove the bolts on the adapter of the boom. Dislodge the adapter.
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Screw in two puller bolts (24) onto the main gear (25) .
Orient main gear (25) by 180 degree's or replace the main gear. As a reference, the puller holes must always be oriented on the top and on the bottom of the main gear.Inspection Of the Balancing Frame
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Check the condition of the holes on the balancing frame. Thoroughly clean the holes.
In case of ruptured holes, repair the balancing frame or replace the frame.Installation Of the Top Pin
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Align the top pin holes with the pattern for the head bolts. Use the bolts (30) in order to push the top pin into the proper place.
Install balancing frame (26) on top pin (27). Press balancing frame (26) against the frame of the felling head.
Torque bolts (30) to 454 N m (335 lb ft).
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Add shims (28) between the balancing frame and top washer (29) in order to reduce play.Note: Maximum recommended play is 0.762 mm (0.03 inch) (D) .
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Torque the bolts in a cross pattern to 339 N m (250 lb ft). Then, torque the bolts again in a cross pattern to 616 N m (454 lb ft).Inspection Of the Cylinders
Check Of the Cylinders
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Check the condition of wiper seal (31) .
Ensure that wiper seal (31) is seated on the seat.Check Of the Lubrication
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Ensure that the oil reservoir has proper flow. Recommended oil flow is one drop at every two seconds or one gallon per week.Note: Reservoir capacity is 1 gallon.