ELBOW (45 degrees) 9S7722 - Caterpillar

Engine: All 3600 All C280Introduction
Ensure that you read and fully understand the information that follows before performing any of the procedures.Setting the Weld Plates
The weld plates are fastened to the engine mounting feet. The engine should be set into place utilizing the mounting feet as a template for the location of the weld plates on the base. Follow the procedure below.
Illustration 1 g03823824
Once the engine has been set, center the engine on the base mounting pads.
Run the jacking screws down until the screws touch the base and then turn an additional 90 degrees.Note: The weld plates can now be welded to the base. By using the engine as a template, only three sides of the plate can be welded without first tacking the plates. Then picking up the engine off the plate for welding on all four sides.
If only the three outer sides are welded, care must be taken to keep the temperature of the weld pass as low as possible.
Use multiple passes to obtain an 18 mm (0.71 inch) fillet with 2.5 mm (0.10 inch) of penetration.Note: Use a 7024 Welding Rod with a diameter of 2.38 mm (0.094 inch). Alternatively, use a flux cored wire with a gas shielding and a diameter of 2.38 mm (0.094 inch).
For the root pass, do not exceed 260° C (500° F) and allow the welds to cool after each additional pass.Note: If too much heat is driven in the plate outside edge without welding the inside, the plate will tip outwards. The tipping will pull the mating surface between the weld plate and base out of parallel. If the weld plate and the base plate surfaces are not parallel, shims can be used. The shims are placed under the weld plate prior to welding to minimize the weld plate from drawing down during the weld process.
Allow the engine welds to cool. Once the welds cool, back off the jacking screws and then torque the engine mounting feet to 900 100 N m (665 75 lb ft).
Check the engine soft foot and crank deflection.
The weld plates are to be fastened to the generator mounting feet.
Set the generator in place utilizing the mounting feet as a template for location of the weld plates on the base. Run the jacking screws down until the screws touch the base, and then turn an additional 90 degrees.Measuring Endplay, Setting Split Ring Gap, And Rough Alignment
Illustration 2 g03824065
Insert a 25.4 mm (1 inch) by 190.5 mm (7.5 inch) long threaded rod through the coupling and generator hub.
Install a nut on each end of the threaded rod. Tighten the two nuts to pull the crank towards the rear to reach full travel of crank endplay.Note: Rotate the engine if necessary.
Illustration 3 g03824134
Use a dial indicator and set to zero on the rear of the flywheel. Reposition the nuts to the area between the coupling and the generator hub.
Spread the nuts to push the crankshaft forward.
After the crankshaft is fully forward, release any pressure on the rod and the