MJM Yachts LLC 34z Downeast, Owner'S Manual

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CHAPTER 12 ROUTINE MAINTENANCE
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12.1 Refer to the following chart for routine maintenance actions. Refer to the engine manual for
additional actions to be taken after 1000 hrs. Some of the items you may choose to leave to
professionals, but many you can do yourself. In particular, it is a good idea to have a certified mechanic
perform check-ups from time to time on the engine, generator, and any other valuable equipment installed
onboard. The following table may include optional equipment not installed on your boat. Yanmar &
Westerbeke engines are assumed – check your manuals if your brands differ.
ITEM REQUIRED MAINTENANCE INTERVAL
ENGINE
Oil Level Check, add if necessary At each use
Coolant Level Check, add if necessary At each use
Replace 250 hrs. (50 hrs. first change)
Air Filter Check, clean if necessary Seasonally
Turbo Charger Clean blower 250 hrs.
Zincs Check, replace if necessary At each oil change or 6 months
Alarms Check Daily
Fuel Filter Change fuel filter (on engine) 250 hrs.
Oil/Filter Change oil and oil filter 250 hrs. (50 hrs. first change)
Mounts Tighten Annually
Exhaust Visually inspect for leaks 500 hrs.
Drive Belts Check, tension if necessary 500 hrs.
Transmission Oil Check level, add if necessary At each use
Clean inlet filter net & replace oil At 50 hrs., 250 hrs., 1000 hrs.
FUEL SYSTEM
Tanks Visually inspect for leaks Monthly
Filter Visually inspect for contamination At each use
Change element & clean bowl 250 hrs.
Valves Operate to insure ease of movement Monthly
Connections Visually inspect for leaks Monthly
Selector Valve Operate to insure ease of movement Monthly
GENERATOR
Oil Level Check, add if necessary Daily or 8hrs. running time
Oil Change 100 hrs. (after first 50 hrs.)
Fuel Filter/Water Separator Check for contamination Daily or 8hrs. running time
Drain & replace filter, if necessary 100 hrs.
Fuel Filter Change 100 hrs.
Engine Hoses Check – hoses should be hard & tight Weekly
Exhaust System Inspect for leaks, check anti-siphon Weekly & after first 50hrs.
RAW WATER SYSTEM
Seacocks Operate to insure ease of movement Weekly
Strainers Visually inspect for contamination Daily or before each use
Thoroughly clean screen & bowl As necessary
FRESH WATER SYSTEM
Tank Open access and clean Seasonally
Strainer Check & clean as necessary Weekly
Accumulator
Check pressure & re-pressurize if
necessary
Monthly
Purifier Replace Seagull filter cannister Annually, or with reduced flow
GRAY WATER SYSTEM