Hubbell, DC Drives, models:

Dual Hose Reel-Direct Drive K-21	Installation And Maintenance Instructions
Dual Hose Reel-Direct Drive K-32	Installation And Maintenance Instructions
GAI-TRONICS 13310 Series	Manual
Universal Cable Reel-Direct Drive UE18	Installation And Maintenance Instructions
Universal Cable Reel-Direct Drive UE28	Installation And Maintenance Instructions
Universal Hose Reel-Chain Drive UH28	Installation And Maintenance Instructions