HOSE AS 4190010 - Caterpillar

September 10, 2001
U-244
A-165
AU-154
S-110
H-79
O-181
Afterfailure only Parts stock action needed PRODUCT SUPPORT PROGRAMFOR REPLACING THE CAMSHAFT IN THE PARK BRAKE GROUP ON CERTAIN 980G WHEELLOADERS 824G WHEEL TRACTORS, 825G SOIL COMPACTORS AND 826G LANDFILL COMPACTORS
4267 PS50268
This Program can only be administeredafter a failure occurs. The decision whether to apply the Program is madeby the dealer. When reporting the repair, use "PS50268" as the Part numberand "7755" as the Group Number. Use "96" as the Warranty Claim DescriptionCode and use "Z" as the SIMS Description Code. The information supplied in this serviceletter may not be valid after the termination date of this program. Donot perform the work outlined in this Service Letter after the terminationdate without first contacting your Caterpillar product analyst. Although this Program is to be administeredas described above on the Affected Product, parts should be removed fromparts stock as soon as possible.TERMINATION DATE
September 30, 2003PROBLEM
The 6W4283 Camshaft in the 9C5950 Park Brake Groupmay break on certain 980G Wheel Loaders, 824G Wheel Dozers, 825G Soil Compactorsand 826G Landfill Compactors. The 6W4283 Camshaft needs to be replacedwith a new 2001318 Camshaft.AFFECTED PRODUCT
980G 2KR2895-4510
9CM1233-2098
2SR528-815824G 4SN433-501825G 6RN359-501826G 7LN485-700PARTS NEEDED
1 - 2001318 CamshaftACTION REQUIRED
***** Parts Stock *****Remove all 6W4283 Camshafts from parts stock.***** Affected Product *****See the attached rework procedure.SERVICE CLAIM ALLOWANCES***** Parts Stock *****Submit one claim for all 6W4283 Camshafts thatare removed from parts stock.***** Affected Product *****
Product smu/age whichevercomes first Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs Parts Labor Hrs Parts Labor Hrs
0-4000 / 0-36 Mo 100% 2 0 0 0 0
4001-6000 /37-60 Mo 33 1/3% 1 0 % 50% 1
This is a 2-hour job.PARTS DISPOSITION
Handle the parts in accordance with your WarrantyBulletin on warranty parts handling.
Attach. (1-Rework Procedure)Rework Procedure
It is not necessary to remove the driveshaft to replace the parking brake camshaft.
Locate the machine on level ground. Articulatethe machine fully to the right or left to gain best access to the parkingbrake. Lower the implement to the ground. Shut the engine off. Do not engagethe parking brake. Block the machine?s tires or steel wheels.
Remove the cotter pin and clevis pin holding the1216607 Lever to the parking brake actuator. Loosen the bolt holding thelever to the parking brake camshaft. Remove the lever from the camshaft.
Remove the twelve bolts and washers holding thedrum to the parking brake. Slide the drum off the parking brake and overthe drive shaft.
Remove the springs, retaining rings, and braceplate holding the shoes to the anchor pins. Spread the shoes outward enoughto clear the camshaft. Remove the broken camshaft.
Install the new camshaft. Reposition the shoes.Install the brace plate, retaining rings, and springs back onto the anchorpins. Slide the drum back onto the parking brake. Install the twelve boltsand washers holding drum to parking brake. Tighten the bolts to 105 +/-20 N.m (80 +/- 15 lb ft).
Follow the Parking Brake Actuator ? Adjust procedurein the Service Manual Testing and Adjusting SENR5881 for 980G or SENR1334for 824G, 825G, and 826G to adjust the parking brake and reinstall the1216607 Lever. Tighten the bolt holding the lever to the camshaft to 55+/- 10 N.m (40 +/- 7 lb ft).
Check the parking brake function. Remove the tireor