ANNUAL MAINTENANCE
19-4
Step 1: Ensure the engine is OFF and the engine safety starting switch
is disconnected. Be certain that the throttle/shift control lever is in
neutral. The transmission fluid must be warmed up.
Step 2: Open the engine compartment and locate the transmission.
Step 3: Remove the transmission dipstick.
Step 4: Use a suction pump through the transmission diptick opening
to remove the fluid from the transmission casing.
Step 5: On a 1:1 transmission, the filter is located beneath the trans-
mission housing.
On a Power Slot transmission, the filter is accessed through a round
plug on the side of the transmission housing.
On a V-drive transmission the filter is accessed through a round
plug on the side of the transmission housing.
Step 6: On a 1:1 transmission, remove and clean the screen. When
re-installing, use and ensure that the gasket is placed correctly, after
replacing the filter.
Step 7: The following chart shows what type of fluid is needed for
your change. (If your transmission is not listed here, check with your
MasterCraft dealer for specifications on capacities and recommended
fluid type.)
Transmission Model Ratio Capacity Fluid Type
ZF Hurth in-line 450D 1:1 1.7 qt. (1.6L) Dexron II, III or MECON
ZF Hurth in-line 450A 1.5:1 2.12 qt (2L) 15W40 motor oil
ZF Hurth in-line 630A 1.5:1 4.2 qt (4L) 15W40 motor oil
ZF Hurth V-drive G30V 4.2 qt (4L) 15W40 motor oil
Note: Access to the transmission fluid filters is somewhat difficult in some models; nonethless, this
maintenance is vital to long-term, trouble-free boating. If you feel that you cannot complete this process,
contact your dealer.
Check the engine mounts
Step 1: Ensure the engine is OFF and dis-
connect the engine safety starting switch.
Be sure that the throttle/shift control lever
is in neutral. The engine must be cool.
Step 2: Open the engine box and locate
the four motor mounts.
Step 3: Check the tightness of the mount-
ing hardware and adjustment lock-nuts.
Tighten any loose hardware securely.
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