Hanson Hydraulics Ltd. Blog

Hydraulic Transmission Case Flushing

Case flushing in hydrostatic transmissions is almost essential in extending the life of the transmission. Flushing will substantially reduce pump and motor operating temperatures. The arrangement depends on whether the Hot Oil Shuttle is integral to the motor or is an external block. If it is integral to the motor, the case [...]

Eaton VIS 45 motors are commonly used in grapple rotate applications, however they are the open loop version of the motor which allows drifting in neutral do to the method used to lubricate the bearings and drive spline in the motor. This motor can be arranged as a closed loop motor which will provide proper [...]

To perform a fast shaft seal replacement on a Poclain MS08/Waratah motor:
Hanson Hydraulics Ltd. Blog article:
A quick reseal on a Poclain MS08-9-12A-A08-1129-DJMO motor. This unit is off of a 622B Waratah processor head. A factory seal kit is around $900.00. In this instance the customer wanted just the shaft seal replaced with absolute minimum down-time.
Ordering [...]

Shimadzu gear pump failure: on a Caterpillar dozer. Here are some pictures of a recent gear pump failure. It is a Shimadzu gear pump from a D5C cat. It is the implement pump. This particular Cat has a core drill mounted to the back of it which is supplied oil from the ripper control valve. 
Hanson [...]