Troubleshooting
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 155
Intensifier
Leaks
Damage to the high-pressure water seals and the hoops is the most common cause of water
leaking from the intensifier. Water dripping from the high-pressure cylinder shows that seal
replacement will soon be necessary.
WARNING
If a high-pressure poppet part is damaged, replace the assembly (high-pressure poppet,
spring, and seat).
Identify the source of a leak and correct the problem. A leak can cause damage to the
water fittings.
If a fitting leaks after tightening it to the maximum torque value, disassemble the parts.
Repair or replace parts that show deterioration, corrosion, or damage.
Blocked weep holes in the dynamic seal backup or the seal housing cause water to go into
the hydraulic system. Make sure that the weep holes are clean.
Weep holes throughout the high-pressure water system let water or hydraulic fluid escape
from leaking parts.
Fluid leaking from a weep hole is a sign of a defective part or a loose connection.
The SMI monitors the rate of fluid drops from the static seal and the dynamic seal.
Numbers pointing to items in the illustration correspond with numbers in the table.
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