MANIFOLD-EXHAUST 1806761 - Caterpillar

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 work tools have been lowered to the ground, and the 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.
Hydraulic oil pressure can remain in the hydraulic systems after the engine and pump have been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic systems. To prevent possible injury, refer to the section, Testing and Adjusting, "Hydraulic System Pressure - Release" before any fitting, hose or component is loosened, tightened, removed or adjusted.When possible, the bucket or attachment must always be lowered to the ground before service is started. When it is necessary for the boom to be in the raised position while tests or adjustments are done, be sure that the boom, stick and bucket or attachment have correct support.The swing lock (if equipped) must be engaged before service is started.Always move the machine to a location away from the travel of other machines. Be sure that other personnel are not near the machine when the engine is running and tests or adjustments are being made.
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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Rework Procedures
Illustration 1 g01325239
Position the machine as the machine is shown in Illustration 1.
Remove the circlip of the mounting pin on the stick cylinder rod and withdraw the mounting pin. Note the position of any shims on either side of the rod eye.
Illustration 2 g01326365
Use the machine hydraulics in order to retract the stick cylinder rod. Refer to Illustration 2.
Illustration 3 g01422681
(1) The area of rework on the extendable stick
Illustration 4 g01422697
(A) 25 mm (1.0 inch) (B) 25 mm (1.0 inch) (C) 93 mm (3.7 inch) (AA) Original Profile (BB) New profile (CC) Material which needs to be removed
Refer to the area of the rework that is shown in Illustration 3. Refer to the dimensions that are shown in Illustration 4. Mark the section of material on the assembly that will need to be removed.
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Protection plate for tubes and hoses
Protect the internal areas of the extendable stick. Reference Illustration 5.
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The extendable stick after material is removed.
Remove the material from the marked out area.
Once all necessary material has been removed, dress the area in order to remove any sharp edges and