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General
Periodically inspect the entire system for leakage and chafe on the tubing and hoses. Repair
any leaks you find as soon as practical. Some crystal formation around the hydraulic intensi-
fier blocks is normal. Wipe down any salt encrusted areas with a damp cloth. If any rust ap-
pears at the Stainless Steel fittings, clean them up promptly. Keep the inside of the case dry
and salt free to protect the electrical components inside.
The Seawater Strainer
The sea water strainer's stainless steel element should be inspected, opened, and cleaned as
needed. Check frequently during operation.
The Prefilter
Service the prefilter on a regular basis. The pressure will rise on the pressure gauge when
the filter becomes dirty. Extremely dirty filters will harm system performance and may
cause the feed pump to cycle on the high pressure cut-out switch. Do not leave dirty filters
in the machine during long idle periods, as biological contamination will result.
To service the filter, swing it out of the case, open the housing, and discard the old filter.
Clean out the housing bowl, reassemble the housing with a new 5 micron filter element.
Leave dry until next startup.
Use only Darley approved filters or you may void your warranty. The filter may be cleaned
several times by soaking it in water in a bucket. Occasionally, lightly lube the filter housing
O-ring with silicone grease.
The Feed Pump and Hydraulic Intensifier
The feed water pump and the hydraulic intensifier require no routine maintenance except in-
spection for leaks. Tighten any hose clamps or fittings that show signs of leakage. The high
pressure fittings threaded into the hydraulic intensifier have O-ring seals with a straight thread.
These should never leak and should never be over tightened. If one of the tube nuts starts to
leak, it can be un-threaded, sealed with a bit of silicone grease or silicone seal, and tightened
with two wrenches very tightly.
Maintenance
16
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