Seals need to be saturated in hydraulic fluid of some kind prior to assembly. Your seal lip needs to be toward the bearingBlack triangle = use seal kit 919303 with these unitsModel code meaningIf you have a LH rotation, then order parts for that unit. Same for a RH rotation, order parts that way.
If you have a question or if you need your unit repaired, call us at 800-361-0068