The lubricating oil is a Castrol automatic transmission Dexron 3 which is available world wide. The main case carries two side mounting flanges drilled and tapped to suit various applications. The idler shafts are also tapped and doweled to accommodate any oil pump of C.S.U. drive that needs to be utilized. Overall the gearbox is of a robust design that has a calculated life in excess of 26,000 hours of operation. This however is as yet to be determined in practical operation.
All gears are case hardened and ground form and are checked for correctness by a comparator.
After assembly the wear pattern and backlash are also checked to make certain there are no high spots or out of square teeth. A very rigid check of all the information is carried out and recorded for that particular gearbox. It also carries an identification plate with build number, date etc.