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Waterjet Commissioning
& Service Documents
A selection of documents
to assist with commissioning and operation of vessels with UltraJet
propulsion.
Waterjet System Commissioning Guide
A guide to identify and rectify engine and boat performance issues
during initial sea trials. Also covers possible situations occurring
in service following successful sea trials. This guide may be used
to troubleshoot most waterjet propulsion systems, regardless of the
waterjet supplier.
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Matching Impeller And Engine RPM
Waterjet impellers have much different engine-loading
characteristics compared to propellers. This document discusses the
differences and especially how waterjet impellers cannot overload
the diesel engine.
Useful information for diesel engine sales people
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Impeller Change Guide
This document is a step-by-step guide to exchange or replace the
impeller in UltraJet models 251, 305, 305HT, 340, and 377. The
larger UltraJet models use a similar procedure but additional
lifting or handling equipment may be required due to the unit size
and weight. This document is a supplement to the manual supplied
with the UltraJet unit.
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for more on this topic.
Thrust Bearing Removal & Replacement Guide
This document is a step-by-step guide to remove and replace the
thrust bearings in UltraJet models 251, 305, 305HT, and 340 with
greased bearings. This document is a supplement to the manual
supplied with the UltraJet unit.
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for more on this topic.
Water Seal Removal & Replacement Guide
This document is a step-by-step guide to remove and replace the
water seal in UltraJet models 251, 305, 305HT, and 340 units. This
document is a supplement to the manual supplied with the UltraJet
unit.
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for more on this topic.
Routine Operator Checks and Service For Commercial Operators
This document has a table with daily, weekly, monthly and annual
checks and service on UltraJet units. A separate table is available
for each UltraJet model. Intended for use by operators and owners of
vessels with UltraJet propulsion in commercial service.
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for more on this topic. | 
