RICE MARINE, INC.
 YOUR MARINE TRANSMISSION SOURCE FOR SALES & SERVICE
VELVET DRIVE, ZF/HURTH, PARAGON, KANZAKI, WALTER V-DRIVE

Operating Tips

OPERATING TIPS

   The operating tips below are general in nature.  They are not intended to replace instructions
    found in your transmission or boat owners manual.


   1.   Always start and run engine for 1 minute then shut down engine and quickly check the transmission fluid
         level.  This allows the fluid to be pumped into the cooler and hoses that may have drained back into the
         transmission preventing a false reading.  If fluid is discolored or smells burnt, the transmission is failing
         and should be serviced. 

   2.  Water leaking into the transmission via the cooler makes it look like either strawberry milkshake if ATF
        is used, or vanilla milkshake if oil is used.  Just draining the transmission and refilling it will not remove
        all the water!   Some water will always remain in the clutch cylinders. As quickly as possible remove the
        transmission, drain and refill as full as possible with ATF, motor oil, kerosene, diesel fuel or paint thinner.
        Have the transmission disassembled and cleaned ASAP.

   3.  NEVER ADD TRANSMISSION STOP LEAK TO A MARINE TRANSMISSION!  None of the gaskets or 
        seals are affected by it and stop leak will just gum up the tiny lube ports, etc.

   4. If your transmission uses hydraulic shifting it has pistons to activate the forward and reverse clutch packs .
       Several seconds should be allowed, in neutral, when shifting between 
gears.  This will allow time for the
       clutch pistons to fully release.  It is possible to shift so quickly that both forward and reverse are engaged
       at the same time leading to burnt clutch plates and possible total transmission failure.

   5. Too fast shifting and shifting at above idle RPM is the most common cause of transmission failure!  Always
        be sure engine is at idle before shifting into gear!  In marine transmissions the clutch packs turn at the same
        RPM as the engine.  Tremendous strain is placed on the clutch packs and associated parts when going into
        gear at higher than idle RPM.  You don't rev your car engine and slam it into gear, do you?  High RPM shifts
        are OK for drag racers but not boats. 

   6.  Change the transmission fluid as recommended by the owners manual or every other time the engine oil is
        changed.  It's really cheap protection for an expensive transmission.