Yes, they did, but the upside was precisely one unscheduled downtime in 30 years continuous operation (it was a cracked upper main bearing on the crank. They had a spare. Scraping to fit took an afternoon and they were pumping once they had steam up the next morning).
The replacement pumphouse had all its equipment removed during the WWII scrap metal drives. Apparently the hand-stacked stone pumphouse building saved the walking-beam engines. While their massive iron was desirable, it was regarded as too much work to tear down the granite walls to get to it.