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4.9.8 Disassembly – Final Stage Cylinder / Piston
1. Remove final stage discharge pipe and 3
rd
stage separator.
2. Remove final stage head (
HE-3045)
3. Remove final stage concentric valve.
4. Remove final stage cylinder.
5. Unscrew final stage piston retaining plate screws (
CNC-0508)
.
6. Remove final stage piston.
7. Check condition of final stage piston rings and piston.
8. Check condition of final stage cylinder liner.
9. Check condition of final stage cylinder o-ring.
4.9.9 Disassembly – 3
rd
Stage Cylinder / Piston
1. Remove
3
rd
stage discharge pipe and 1
st
stage separator.
2. Loosen
3
rd
stage piston locking screws (SSF-0404)
3. Unscrew piston from piston rod using special tool provided
(special tool #
.
CAUTION:
When unscrewing the piston, ensure that piston rings do not
get caught in head end valve pockets. To prevent this occurring, roll over
the machine until piston is approximately in middle of stroke. Then
unscrew the piston.
4. Remove
3
rd
stage cylinder retaining nuts.
5. Carefully slide cylinder assembly off piston rod.
CAUTION:
Take care when lifting the cylinder off the piston rod. Rod
Packings (seals) are easily damaged. The cylinder must be lifted off the
rod without any force (up; down or sideways) being placed on the rod
while lifting off.
6. Before removing piston rod, take note of distance from top of rod to top of
balance nut.
7. Loosen balance nut locking screws.
8. Loosen balance nut using special tool provided (
TL-0060)
.
9. Remove piston rod.
10. Check condition of piston rod.
Intermech Ltd. BBR-6015-2 Compressor Service Manual
