CYLINDER 3W0643 - Caterpillar

Removal Procedure
Start By:
Remove the exhaust sensor lines.
Remove the exhaust gas valve.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g01927253
The control manifold is located above the engine control module.
Remove bolt (1) and disconnect tube assembly (4).
Remove both tube assemblies (2) and (3).
Disconnect tube assembly (5).
Illustration 2 g01927327
Remove bolts (6) and remove fuel manifold (7).
Illustration 3 g01927577
Remove check valve (8) and remove check valve (9).
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Remove O-ring Seals (10) and (11). Remove backup ring (11) from check valve (8). Installation Procedure
Install the fuel manifold in the reverse order.
Tighten check valve