COVER AS-FRONT 1994881 - Caterpillar

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(13) Bearing Segment
Install the radial bearing on dampers that have radial bearings.
Install the axial thrust bearing segments.
Install the O-ring seals on the inside diameter of the hub and on the outside diameter of the ring.
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(10) Cover
(11) Hub
(12) Ring
Install the cover. The TDC mark for the first cylinder must be to the outside. Make sure that the cover is engaged with the dowel pins prior to the installation of the bolts.Procedure to Fill the Damper
Note: All parts and fluid should be at a temperature of 20 °C (68.0 °F) to 25 °C (77.0 °F) for at least 2 hours before the damper is filled with silicone.
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Install two 138-7573 Link Brackets.
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Lift the damper with an overhead hoist. Position the damper at a 15 degree to 30 degree angle from the vertical plane.
Install the appropriate adapter fitting into the bottom fill port. The top filler plug must be removed on the dampers with a diameter of 762 mm (30.0 inch).
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The vibration damper is filled with silicone. This substance is very thick and must be removed with a putty knife. Wear gloves in order to avoid skin irritation.
Install the steel tube for the pneumatic gun over the adapter fitting.
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Place the silicone cartridge in the steel tube of the pneumatic gun. Engage the threads on the adapter fitting.
Tighten the silicone cartridge and the adapter fitting into the bottom threaded hole.
Install the air gun onto the steel tube. Lock the gun to the tube.
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Set the air regulator to 689.5 kPa (100.00 psi) for the maximum pressure. Install the air hose to the pneumatic gun. Depress the trigger to start the filling procedure.
Refer to Table 6 for the appropriate number of cartridges to use on the different sizes of dampers.
Table 6
Diameter Number of Cartridges
597 mm (23.5 inch) 3.5
762 mm (30.0 inch) narrow 5
762 mm (30.0 inch) wide 9
The first cartridges of silicone will empty in approximately 15 minutes. The silicone will flow at a slower rate as the damper becomes full. Approximately 30 minutes may be needed to inject the last tube. All silicone tubes should be emptied before starting a new tube.Note: The damper with a diameter of 597 mm (23.5 inch) must be injected with a minimum of 3 tubes. Steps 10.a through Step 10.e only apply to dampers with a diameter of 597 mm (23.5 inch).
Fill the damper until 3 tubes have been injected. If the silicone fluid has not started to leak from the vent hole, stop filling the damper. The damper is filled with an adequate quantity of silicone fluid.
If only three tubes have been injected and silicone fluid has started to leak from the vent hole, then the damper should lay horizontal for 30 minutes to allow the fluid to settle.
Return the damper to the upright position and attempt to inject the remaining half of the tube of silicone.
Do not continue to fill the damper if the fluid