162 HyPrecision 50S/60S/75S Operator Manual 808690
7 – Troubleshooting
Troubleshooting
If the intensifier overstrokes in 1 direction
Instructions about how to disassemble the intensifier and how to repair or replace parts start on page 97.
Possible cause Solution
A low-pressure poppet is sticking, worn, or damaged.
Overstroking to the left means that there is a failure of
the low-pressure poppet on the left side of the
intensifier.
Overstroking to the right means that there is a failure
of the low-pressure poppet on the right side of the
intensifier.
• Examine the face of the poppet and the mating face
on the check valve. Make sure that the faces are
smooth and flat and have a nearly mirrored finish.
• Repair or replace the poppet.
• Make sure that the low-pressure poppet fits in the
basket without sticking.
• Repair or replace the check valve.
A high-pressure poppet is sticking, worn, or
damaged.
Overstroking to the left means that there is a failure of
the high-pressure poppet on the right side of the
intensifier.
Overstroking to the right means that there is a failure
of the high-pressure poppet on the left side of the
intensifier.
• Monitor the temperature of the output adapter on
the intensifier end opposite the direction of
overstroke. If the output adapter is hot, remove it
from the check valve and examine the high-pressure
poppet, the spring, and the seat.
• Replace the high-pressure poppet, the spring, and
the seat.
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