BLADE-CUTTER 1774272 - Caterpillar

ACTION REQUIRED
Carry out the existing Before and After Service Letters to rework the left and right side front frame Strut mounts. As a result further cracks can propogate up into the fore/aft beam causing additional damage and further additional rework to be performed. Additional labour support is required to Remove and Install major componenets and structures of the truck to allow access to the respective areas to be reworked.
In addition 3 areas will need to be inspcted for cracks and reworked as necessary.
Right Rear chassis frame tail casting around the axle stabiliser mount.
Cracks found around the Accumulator mounting brackets.
Cracks found in & around the main beam.
Carry out dye penetrant crack testing on the truck chassis frame in the
following area's.
- Right rear chassis/Frame stabilizer bar mounting.
- Accumulator mounting brackets.
- The main beam which has the rocker pad pedestals mounted.
If cracks are found in the area of the rear stabilizer mount on the rear chassis. Carry out crack repairs as per Special Instruction REHS5055 "Procedures for the Inspections, Repairs, and Component Replacements on the Frames and Support Assembly of Certain Off-Highway Trucks". See Image 1 below for the location.
If cracks are found in the area of the accumulator mounting brackets on the right side of the truck chassis frame, they need to be reworked in accordance to Special Instruction REHS5055 "Procedures for the Inspections, Repairs, and Component Replacements on the Frames and Support Assembly of Certain Off-Highway Trucks".
If cracks are found in the areas of the of the main beam of the truck chassis frame, they need to be reworked in accordance to Special Instruction REHS1841 "General Welding Procedures".
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-20000 hrs,
0-72 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 1.0-hour job
This is a 1.00 hour job to crack test the specific areas of the chassis frame.
- If cracks are found in this area of the accumulator mounts.
Add an additional 4.00 hrs to carry out weld repairs around this area on the chassis.
- If cracks are found in this area of the rear stabaliser mounting.
Add an additional 3.50 hr to carry out weld repairs around this area of the chassis.
- If cracks are found in this area of the main support beam.
Add an additional 50 hr to remove the engine assemble from the frame
In order to gain access carry out weld repairs the main beam of the chassis.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.