Table of Contents
Advertisement
This following pages describe the disassembly and assembly procedures for the air compressor. In all
cases, remove the compressor from the vehicle before proceeding with disassembly and repair within a
clean environment. Refer to the parts drawings in this manual for parts locations.
1. Piston Ring Replacement
I.
Shut down machine and allow to cool for approximately 10 minutes.
II.
Verify entire system pressure is relieved before proceeding.
III.
Disconnect air inlet system tubes.
IV.
Disconnect 3/4" discharge jumper hose.
V.
Disconnect 3/4" discharge hose.
VI.
Unscrew the head nuts and remove the heads.
VII.
Remove the cylinder bolts. Tap the sides of the cylinder several times to break it loose from
the gasket. Rock the cylinder back and forth and lift until it is free. Lift it off the pistons.
VIII.
Use a single edged razor blade, or sharp putty knife, to remove the old gasket material.
IX.
Hone the cylinder to break the glaze and to remove the buildup at the top of the cylinders.
X.
Measure the inside diameter of the cylinder for roundness and excessive wear. The bore should be
2.625" (0.0025" tolerance). If the bore is oversized, the cylinder must be replaced.
XI.
With a ring expander, remove the compression and oil rings.
XII.
With the ring expander, install the new ring kit. Make certain that the oil ring is on the bottom and
the beveled inside edge of the compression ring is toward the top of the piston.
XIII.
Position the cylinder base gasket on the crankcase. Use a few drops of oil to hold it in position.
Install the cylinder block spacer and gasket on the crankcase.
Maintenance
A rubber faced mallet will help when removing the head. Tap the sides of
the head carefully until the head is loose. Lift off the heads.
Do not allow the gasket material to fall into the crankcase. Do not nick
the head, cylinder, or crankcase mating faces while removing the old
gasket. Remove all of the old gasket material to provide a smooth,
clean surface for the new gasket. Failure to follow this procedure may
result in the need to reseal the unit later.
21
308528
Advertisement
Table of Contents
