16. Remove the cylinder from the other end bell. The
piston and plungers can stay with the cylinder. Do
not use a screwdriver to pry the cylinder from the
end bell.
Remove the cap screw(s) holding the remaining end
bell to the assembly fixture and set aside.
17. Use a dead blow hammer to drive the piston and
plungers from the cylinder. Set the parts aside.
End bells
18. Remove the snap ring, spacer and oil seal from one
end bell bore. Remove the large diameter o-ring and
back-up ring from the end bell. Remove the large
o-ring from the high-pressure cylinder side of the
end bell.
CAUTION
Do not use a sharp tool to remove
these parts—it will damage the parts.
Repeat this step for the other end bell.
19. Clean the hydraulic cylinder, end bells, oil seal spac-
ers and snap rings. All service must be completed in
a clean, well-lit area.
Inspect the parts for the following:
•
Make sure the oil seal spacers are not warped or
nicked.
•
Make sure the snap rings are not bent and that they
still have the appropriate tension.
•
Check the end bells for damage to the sealing sur-
faces and grooves, and a damaged or out-of-round
shift pin hole.
•
Clean all surfaces of the low-pressure cylinder and
inspect for any signs of damage or fatigue. Inspect
the inner surface by looking through the cylinder an-
gled toward a brightly lit white surface. If there is any
damage to this surface that can be felt with a finger-
nail, discard the cylinder.
CAUTION
Do not reassemble the intensifier with a cylinder
that has a damaged inner surface.
Sharp burrs on the beveled edge of the cylinder ID
can damage the end bell o-ring and backup ring when the
parts are assembled. Such damage can lead to immediate
seal failure and excessive hydraulic oil loss.
20. Apply clean hydraulic oil or Parker Super O-ring
Lube to a new oil seal and install it in an end bell
with the spring insert visible. (See orientation in illus-
tration below, and in Step 18.)
Take care not to collapse the oil seal spring insert
when installing. Place the spacer on top of the seal
and install the snap ring.
© Flow International Corporation
M-376 | 53
CHAPTER 3
Maintenance Procedures
Summary of Contents for 94K HYPERPRESSURE
Page 1: ...94K HYPERPRESSURE INTENSIFIER M 376 REV G JUNE 2012...
Page 4: ...Notes 4 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 14: ...Replacement parts 14 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 16: ...Notes 16 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 30: ...Notes 30 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 36: ...Notes 36 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 46: ...Notes 46 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 62: ...Notes 62 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 64: ...64 M 376 Flow International Corporation 94K HYPERPRESSURE INTENSIFIER...
Page 65: ...Flow International Corporation M 376 65 CHAPTER 4 Troubleshooting...