USS (______________)
DATE
ENGINE NO. ______________________________
NOTE
Some of the procedures included in these requirements do not apply to a specific model caterpillar engine.
B. VISUAL INSPECTION.
1. Crankcase and block:
a. Check for missing or loose bolts, block to base. Comments:
b. Check internals for discoloration or signs of overheating. Comments:
c. Inspect main bearing and connecting rod bolts and nuts. Comments:
d. Check connecting rod and main bearing edges for evidence of bearing failure. Comments:
e. Check for water dripping at liner-to-block sealing surfaces. Comments:
f. Check visible areas of liners from beneath for scoring, galling, and dull spots. (Bar engine over this operation.)
Comments:
g. Check all lube oil piping for looseness. Comments:
h. Run prelube pump and check to ensure that oil lines to the engine are tight. Check to ensure that oil is reaching all rocker arm assemblies.
Comments:
i. Inspect accessory drive and crankshaft gear for broken teeth, unusual wear pattern, excessive wear, and improper lubrication, as accessible on 3600 series.
Comments:
j. Inspect drive gears for broken teeth, unusual wear pattern, or excessive wear, as accessible on 3600 series.
Comments:
2. Crankshaft vibration damper/ring gear.
a. Check condition of the vibration damper for dents or bulges in the damper case. Comments:
b. Check flywheel ring gear teeth and air start motor pinion for cracking or pitting, mandatory 3600 series.
Comments: 3. Camshaft.
Inspect camshaft lobes for excessive pitting, flat spots, or wear. Comments:
4. Fuel injection pump and fuel lines.
a. Inspect injection pump and fuel lines for leaks. Comments:
b. Fuel cam roller for excessive wear or flat spots. Comments:
c. Spot-check valve clearances. Comments:
d. Inspect valve spring, valve locks, and rotators. Comments:
e. Validate engine timing. Comments:
f. Check for any excessive looseness in the rocker arm assemblies. Comments:
5. Cylinder head
a. Check for any evidence of fuel or water leakage around the cylinder head area. Comments:
6. Fuel control linkage and governor assembly.
a. Check freedom of movement of all racks, linkages, and control shafts. Comments:_____________________________________________ b. Check all linkage for lost motion with clevis pin nuts securely tightened against
shoulders and all cotter keys in place.
Comments:_____________________________________________ c. Check governor oil level and oil leakage around base of governor.
Comments:_____________________________________________ 7. Fuel pump timing.
a. Check fuel pump timing on at least two cylinders on each bank.
Comments:_________________________________________________ 8. Sea (raw) and jacket water pumps.
a. Check for any leakage from the telltale hole and associated piping (leakage from telltale holes indicates defective seals.)
Comments:______________________________________________ b. Ensure that all vent valves and gages have been installed.
Comments:______________________________________________ 9. Engine-driven lube oil pump.
a. Check for any leakage of oil out of pipe connections and flanges.
Comments:______________________________________________ b. Check for signs of overheating on pump housing.
Comments:______________________________________________ 10. Turbocharger(s).
a. Inspect turbocharger compressor for damaged vanes or leaking oil seal. Comments:______________________________________________ b. Ensure that turbocharger rotor does not bind when rotated by hand.
Comments:______________________________________________ c. Inspect external surface of the turbocharger for evidence of exhaust leaks.
Comments:______________________________________________
d. Inspect turbocharger after cooler for dirt, oil, contamination, and jacket water leaks. Comments:______________________________________________
e. Inspect shutdown gate orifice hole, located cooler side, 3600 series. Comments:
11. Flexible hose, flexible pipe, and fittings:
a. Inspect flexible hose for cracks, crimping, fraying, rubbing, swelling, and deterioration.
Comments:______________________________________________ b. Inspect pipe sections for cracks or for leakage at flanges.
Comments:______________________________________________ c. Inspect pipe hangers for tightness and flexible pipes for freedom of movement.
Comments:______________________________________________ 12. Air intake system.
a. Inspect filter elements for cleanliness, completeness; ensure that filter element is firmly seated in housing and that the pop-up indicators have been installed. Comments:______________________________________________
b. Inspect air ducting from filter to turbocharger air inlet for cracks, missing sections, loose or missing nuts, bolts, and rivets.
Comments:______________________________________________ c. Inspect air intake manifold on 3600 series engines. Manifold will be wet with
approximately 1 inch of oil at low point due to intake manifold lubricators. Comments:
13. Safety devices.
a. Remotely operate the emergency trip (inspect for frayed wire and improper connectors).
Comments:______________________________________________ b. Check the manual trip stop lever cap screw for tightness.
Comments:______________________________________________ c. Check flange shields and spray shields for proper installation and condition.
Comments:______________________________________________
d. Check high-temperature and low-lube-oil alarms.
Comments:______________________________________________ 14. Prime mover.
a. Validate alignment of prime mover if indications warrant (i.e., vibration problems). Comments:______________________________________________
15. Exhaust system.
NOTE
The results of the visual inspection may indicate that a more thorough inspection of the entire exhaust system is required.
a. Visually inspect exhaust pipes and expansion joints in engine room and exhaust stacks for leaks during operational test.
Comments:______________________________________________ b. Check engine exhaust muffler for baffle separation and
deterioration (if applicable).
Comments:______________________________________________ c. Inspect spring hangers for material condition, proper tension, and indications of movement.
Comments:______________________________________________ d. Inspect exhaust stacks for cleanliness, fire or safety hazards.
Comments:______________________________________________ e. Check exhaust pipe/silencer drain valves for freedom of
movement and clogging.
Comments:______________________________________________ f. Inspect exhaust muffler hand hole covers for leaks if applicable. Comments:______________________________________________ 16. Lube oil filters.
a. Inspect one filter element for excessive contaminants and correct installation.
Comments:______________________________________________ b. Check lube oil sampling valves for hand wheels and caps.
Comments:______________________________________________ 17. Fuel oil filters and strainers.
a. Ensure that strainer T-handle turns freely.
Comments:______________________________________________ b. Operate filter and strainer drain valves for freedom of movement. Comments:
18. Inspect intake and exhaust manifolds.
a. Inspect air and exhaust manifolds for evidence of blown-out gaskets.
Comments:______________________________________________ b. Check heat shields for proper installation.
Comments:_____________________________________________ 19. Heat exchangers.
a. Inspect heat exchangers for external leaks.