Groco Pump Shaft And Keys
For Groco EB Diaphragm Toilets models from 1965-95
There should be no noticeable play in handle arm (HT-3560-B). If there is play it is probably due to wear in the keyways of the pump shaft. We recommend replacement of pump shaft and keys (HT-6566) every five (5) years, or when excessive play is detected.