TUBE 1S1939 - Caterpillar

Start By:
Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
Remove the drum scraper. Refer to Disassembly and Assembly, "Drum Scraper - Remove and Install".
Remove the leveling blade (if equipped). Refer to Disassembly and Assembly, "Leveling Blade - Remove and Install".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contamination of the hydraulic system with foreign material will reduce the service life of the hydraulic system components.To prevent contaminants from entering the hydraulic system, always plug or cap the lines, fittings, or hoses as they are disconnected. Cover any disassembled components and clean them properly before assembly.Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Block the machine to prevent movement before releasing the brakes. The machine can roll free if it is not blocked.
Drain the hydraulic oil from the hydraulic tank into a suitable container. Refer to Operation and Maintenance Manual, "Every 1000 Hours or 1 Year" for the proper procedure for draining the hydraulic oil. The capacity of the hydraulic tank is approximately 64 L (17 US gal).
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Disconnect hose assembly (1), hose assembly (2), and hose assembly (4) from vibratory motor (3) .
Remove clamp (5) that secures hose assembly (4) to the support.Note: Your machine may be equipped with a tachometer to indicate vibrations per minute. The tachometer has a magnetic sensor that is mounted on the vibratory gearbox. Mark the wires to the magnetic sensor for installation purposes.
Disconnect the wires to the sensor for the tachometer, if equipped.
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Remove the bolts and plate (6) .
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Remove the bolts and plate (8) .
Remove the bolts and clamp (7). Position the five hose assemblies and the harness assembly (if equipped) out of the way.
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Disconnect five hose assemblies (9) from drum propel motor (10) .
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Remove the bolts and plate (11) .
Remove the bolts and clamp (12). Position the five hose assemblies out of the way.
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Attach a suitable lifting device to both sides of drum (13). Raise the drum approximately 12.7 mm (0.50 inch).