VALVE & MTG GP-MAIN CONTROL 2374932 - Caterpillar

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This Revised Service Letter replaces the 19Jul2013 (Revised 22Oct2013) Service Letter. Changes have been made to the Mail Codes.
TERMINATION DATE
31Jul2015
PROBLEM
The existing V-Band Clamp can fail on certain 3512C HD and 3516C HD Marine Engines. If the existing clamp fails it may cause an exhaust leak.
AFFECTED PRODUCT
Model Identification Number
3512C HD TKP00200-00219
3516C HD TKR00200-00205
TKS00200-00215
TKT00200-00217
TKX00200-00201
TKY00200-00245
PARTS NEEDED
Qty
Part Number Description
2 2631174 CLAMP-V-BAND
2 2790487 GASKET
2 3113385 BELLOWS AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
Replace the band clamps. A new bellows and bellows to exhaust elbow gasket are also replaced.
Remove old clamp (2), bellows (1) and gasket (3). Retain bolts and washers (4 and 5) for reuse.
Lightly lubricate the threads and the inside channel of the V-band clamp (2) with a high temperature anti-seize. Orient the clamp for installation and set around the turbine outlet during assembly of the bellows to the exhaust elbow.
Inspect and clean bolts and washers (4 and 5), apply a coating of high temperature antiseize to the bolt under head and to the threads, install the new bellows (1) and gasket (3) onto the exhaust elbow (6) with the bolts and washers (4 and 5), and tighten.
Install the V-Band clamp (2) and tighten the clamp to 11 +/- 2 N.m (97 +/- 18 lb in).
Tap the clamp lightly around the circumference with a small hammer to seat the clamp.
Tighten the clamp again 11 +/- 2 N.m (97 +/- 18 lb in).
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SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-200 hrs,
0-24 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 1.0-hour job
If necessary, an additional 6 hours is allowed to remove and install the 374-8430 Turbocharger Shield Group (or similar) if there is inadequate clearance for access to the clamp.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.