Winterising/Dry Storage; Routine Maintenance - Williams DIESELJET 445 Manuel Du Propriétaire

Shaft Seal Lubrication
Shaft seal lubrication is provided by an
automatic grease unit. Inspect reservoir level
approximately every 10 hours of operation. Use
a premium, multipurpose calcium sulphonate
grease or equivalent high temperature, high
speed bearing grease to re-fill reservoir. Take
care not to over-pressurise system. DO NOT
exceed maximum level indication.

Routine Maintenance

To ensure long service life and to maintain the tender in safe, good working order, please
follow these routine maintenance instructions. Williams cannot accept any responsibility
for damage or injury resulting from incorrect maintenance or improper adjustment
carried out by the owner.
1 Wash all external surfaces regularly with fresh water to remove salt deposits.
2 Inspect automatic grease unit reservoir and refill as required.
3 Check engine oil level (refer to section Oil Level Check in this handbook).
4 Check coolant level.
5 Flush open loop cooling system after each use.
6 Apply a good quality marine grease containing Teflon (e.g Quicksilver 101) to all exposed
control cables.
7 Check bilges for water ingress, oil or fuel contamination and clean if necessary.
8 Check condition of anodes around pump area.
9 Slight loss of tube pressure over 24 hours is not unusual. Temperature and atmospheric
pressure will affect tube pressures. Check pressures regularly.
10 For boats used in tropical environments, the frequency of the routine maintenance should
be increased accordingly.
Servicing
The post run-in 1st service is required at 50 hours. Thereafter servicing is required
according to Maintenance Table or yearly, whichever comes first. Consult your Williams
authorized dealer for servicing.
For parts and accessories please contact your Williams authorized dealer.
Refer to Yanmar service manual for detailed schedule of engine servicing.
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Winterising/Dry Storage

Max
Store the boat covered, in a clean, ventilated and dry place that is not affected by major
variations in temperature or humidity. This is a general best practice guide. For specific
information on engine winterising, please refer to Yanmar engine manual.
Buoyancy Tube
Prior to storing over the winter periods, the buoyancy tubes should be deflated and hosed
down with fresh water, removing any small stones and weed from luffing track, then allowed
dry. Use a proprietary tube cleaner and polish to ensure optimum condition. Store with the
tubes lightly inflated where possible.
Maintenance of the Hull & Deck
Wash the deck and stainless steel deck fittings regularly using a mild detergent in warm water
and hose down to remove sand etc. The hull and deck should be regularly polished using a
good quality gelcoat polish to minimize fade and UV chalking. Apply wax polish to hand rails
and stainless steel deck fittings.
Battery
The battery used in the Dieseljet is of the dry cell type and as such if replacing the battery
ensure only AGM type is used. This means that the electrolyte content is absorbed in a special
fabric which requires no 'topping up' and is leak proof in any position. When the boat is not
being used for an extended period of time, disconnect the earth terminal. A trickle-charging
device, such as an 'Accumate', will extend battery life.
Fuel System
A full fuel tank prevents moisture and mildew from developing within the tank. Drain water from
fuel separator.
Cooling System
Flush the open loop water circuit to remove salt, sand, shells and other contaminants that
may be trapped in the raw water cooling circuit (refer to Flushing Procedure section). Remove
engine raw water impeller if not in use for long periods. Measure the anti-freeze content of
the engine coolant with a commercially available anti-freeze tester. A 50/50 mixture of distilled
water to propylene glycol provides sufficient frost protection to approx. -37°C, drain raw water
from engine OR run the same 50/50 antifreeze mixture through the open loop system via
the raw water strainer and with the isolator valve in the OFF position. See engine manual for
location of engine drain cocks.
Control Cables
Grease all control cables at both ends and exercise in and out to ensure good coverage.
General Corrosion Protection
Apply 'Vaseline' or similar white grease to battery isolator switch, upholstery press studs and
telescopic running light. Use maintenance spray on key switch. Apply a proprietary corrosion
guard to engine, electrical connections, under helm and around jet pump area. Wax polish
exposed stainless steel fittings and handrails.
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