FIGURE 17 - TU-FLO® 400 AIR COMPRESSOR VERTICAL MOUNT - ENGINE LUBRICATED
Straighten the prongs of the connecting rod bolt lock strap and remove the bolts and bearing caps. Push the piston with the connecting rods attached out the top of the cylinders of the crankcase. Replace the bearing caps on their respective connecting rods. Remove the piston rings from the pistons. If the pistons are to be removed from the connecting rods, remove the wrist pin lock wires or teflon plugs and press the wrist pins from the pistons and connecting rods.
If the pistons are removed from the rod, inspect the bronze wrist pin bushing. Press out and replace the bushing if it is excessively worn. (See Inspection of Parts.) Discard the piston rings and the connecting rod journal bearings. Discard the wrist pin bushings if they were removed. New
REMOVING AND DISASSEMBLING BASE PLATE
Remove screws that hold base plate. Remove base plate. Remove oil relief valve set screw, then oil relief valve. Remove oil strainer retaining ring and lift out oil strainer. Unless it is necessary, the oil pump piston bushing should not be removed. If necessary, remove the bushing set screw, then bushing and shim.
FIGURE 18 - BASE PLATE SELF-LUBRICATED TYPE COMPRESSOR
Remove cotter pin from oil rod cap nuts, remove nuts, oil pump piston rod and cap.
CRANKCASE (Fig. 19)
Remove end cover with oil seal, remove end cover gasket. Replace oil seal after cleaning end cover.
Remove cap screws that hold opposite end cover to crankcase; remove end cover and its gasket. Some compressors have crankcases that have a shoulder for positioning the crankshaft. In these cases the crankshaft must be removed through one particular end.
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