Regal 53 SC Owner's Manual page 383

CUMMINS ENGINE
Maintenance Procedures Daily- Overview
Preventative maintenance is an important part of the en-
gine and drive propulsion package life cycle. It starts with
day to day awareness of the propulsion systems. Before
checking systems, check all appropriate fl uid levels. Refer
to the Cummins/Zeus owners manuals for fi lling instruc-
tions and recommended fl uids.
In the next section Cummins/Zeus recommended main-
tenance guidelines are listed. A portion of these pro-
cedures require special tools or must be completed by
authorized personnel. Contact Cummins Care for more
information. Note that in harsher environments mainte-
nance intervals are shorter.
Use the maintenance form to record regular maintenance
performed. Always use Cummins factory replacement
parts. Note that Zeus initial checks at start-up are noted
with red type. Zeus interval tasks initiate on the upcom-
ing pages and are highlighted by red.
Before starting engines check for:
Leaks puddling on hull bottom or stringer tops
Loose or damaged parts
Worn or damaged belts
Debris in sea water strainers
Any change in propulsion system appearance
Leaky, dirty ot water in fuel-water separator fi lters
Odor of electronic or electrical devices
Loose engine hardware or clamps
Loose battery terminals or hold down components
Specifi ed engine oil level
Specifi ed engine coolant level
Marine gear oil level
Check the steering actuator and trim tab oil (fl uid) level.
Check the transmission oil (fl uid) level-planetary gears
After starting engines check for:
Fuel leaks
All engine helm gauges for proper operation
Changes in power
Cosmetic Care & Maintenance
Engine surge
Engine water/glycol leaks
Erratic throttle response
Unusual engine noise
Excessive smoke either black or white
Any fl ashing helm lights or ones that are staying on
Loose engine hardware
Air intake restrictions
Maintenance Procedures at 125 Hours or 3 Months
Drive belt-Seawater pump-inspect for reuse
Air intakes on boat-check
Battery cables & connections-check
Engine wiring harness-check
Air cleaner (engine mounted)-check
Sea water hoses-inspect
Maintenance Procedures at 250 hours or 6 months
Fuel fi lter (spin-on-type) replace
Engine lubricating oil and fi lters-drain*
Engine coolant antifreeze-check
Sea water pump-check
Fuel-water separator fi lter-check
Heat exchanger pressure cap-inspect for reuse
Note*-The lubricating oil and fi lter change interval is 500
hours if ultra low sulphur diesel fuel is exclusively used.
Maintenance procedures at 500 hours or 1 year
Sea water pump-check
Drive belt, alternator-check
Batteries-inspect
Aftercooler assembly (sea-water)-clean
Heat exchanger-fl ush
Air cleaner (engine mounted)-check
Engine mount hardware-mount locknut torque 130 ft.lbs
Marine vibration isolator-check
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