OIL
Industrial transmissions are shipped without oil. Please do not  operate this unit until the proper oil has been added at the proper  level. Doing so will not only void the warranty, but will cause  extreme damage to the unit. To fill the unit with oil: Fill through  the oil plug on top of or near the top of the unit. We recommend  the use of MOBILGEAR 626 or an equivalent. This lubricant should  be changed after the first 100 hours. To change the oil: The oil  needs first to be drained using the drain hole at the bottom of  the unit. Then flush the case with light flushing oil. Thereafter  a change of oil every 1000 hours should be made unless there is  unusual temperature conditions combined with intermittent high loads.  A change of oil may then be necessary at one or three-month  intervals.

SHIFTING - Manual
The transmission needs to come to a full stop before shifting into  another gear. This is not a unit that can be shifted on-the-fly.  If you have trouble shifting move the input shaft slightly to line  up the gear teeth shaft – to mating gear. Failure to stop the unit  will void the warranty and cause great damage to your unit.

SHIFTING – Auto
With the auto-shift feature the unit should be slowed to 3 – 5 RPM  before shifting into another gear ratio. At a full stop, the teeth  of the gears may not be in line with each other to make the shifting  easily. At higher speeds, shifting will cause shearing to the teeth  of the gears. Improper shifting will void the warranty.
If you experience any difficulty with this product, please call  our office so we may assist you.