HOSE AS 5170101 - Caterpillar

(27)Prelube Pump - (Early G399 Engines Only)
1. Remove the rear bearing grease plug.2. Clean out the old grease.3. Install a grease fitting and lubricate.4. Remove the grease fitting.5. Wipe excess grease.6. Clean and install the grease plug.(28)Engine Valve Lash
NUMBERING OF CYLINDERSINLET VALVE LASH-.015 inch (.038 mm)EXHAUST VALVE LASH-.035 inch (0.90 mm)Valve lash need not be adjusted if within .003 inch (0.07 mm) of the lash given.
To prevent possible injury, do not use the starter motor to turn the flywheel.Hot engine components can cause burns. Allow additional time for the engine to cool before measuring valve clearance.
1. Stop the engine.2. Clean the base of the valve covers to prevent dirt from getting into valve mechanism.3. Remove the valve covers. 4. Remove the flywheel housing timing cover.5. Turn the flywheel in the direction of normal rotation.6. Align the "TC-1" timing mark for your engine, ("TC1-7", "TC1-11", or "TC1-15"), with the timing pointer on the flywheel housing.When on compression stroke both inlet and exhaust valve rockers can be easily moved with finger pressure.When on exhaust stroke only the inlet valve rockers can be moved freely with finger pressure.7. Check the No. 1 cylinder rockers for movement. Determine if the piston is on COMPRESSION or EXHAUST STROKE. 8. Refer to the preceding table, and set only those valves specified in the appropriate table for No. 1 cylinder on compression stroke or exhaust stroke as determined in step 7.9. Rotate the flywheel one revolution in the direction of normal rotation and align the flywheel "TC-1" timing mark.10. Inspect the movement of the rockers for cylinder No. 2.11. Set the remaining valves as specified in the table.Adjusting Valve Lash
When adjusting valve lash, engine must be stopped and cold. 1. Loosen the locknut on the adjusting screw. 2. Turn the adjusting screw to obtain the proper valve lash.3. Hold the adjusting screw and tighten the locknut.4. Recheck the valve lash.(29)Valve Rotation
After checking all valve clearances, and before installing the valve cover:1. Start the engine.2. Move the governor control to the low idle position.3. Watch the serrations on each valve retainer. Each valve retainer should turn slightly each time the valve closes.If a valve fails to rotate, call your Caterpillar dealer.If all valves rotate, proceed as follows:4. Stop the engine.5. Inspect valve cover gaskets. Install new gaskets if necessary. 6. Install the valve covers. 7. Install the flywheel housing timing cover.(30)Cooling Systems - Change Anti-Freeze Solution
Inspect the cooling system with engine stopped.Remove the filler cap slowly to relieve pressure. Steam can cause personal injury.Do not allow coolant conditioner, which contains alkali to contact skin or eyes.
If the engine is to be shipped to an area with below freezing temperatures, the cooling systems must either be protected to the lowest expected ambient temperature or drained completely.
When permanent antifreeze and water solutions are used in the cooling systems, the solution should be drained and replaced EVERY 2000 SERVICE HOURS.However, when additions of conditioner are made EVERY 250 SERVICE HOURS, the antifreeze change period can be extended to 4000