PTO or Speed up gear boxes are primary used on agricultural tractors where more hydraulic power than the system on the tractor can provide.
The quick release coupling on the gear box attaches to the tractor PTO shaft and steps up the PTO speed to one much more suited to the efficient speed of a hydraulic pump. A Gear pump is fitted to the other side of the gear box.

Lubrication
Use SAE 90 oil. Change oil every 12 months.

Model	60004-5-3.5
Mounting Flange For	Group 2 Gear Pump
Output Shaft	25x22 Din 5482 (Z.14) 14 tooth Spline
Input Shaft	Female P.T.O. shaft 1-3/8" Quick Release
Weight	5.5 Kg
Ratio	3.5:1
Max Input Speed RPM	540
Max Output Speed RPM	1836
Max Input Torque daNm	18.6
Max Output Torque daNm	5.8
Spline Adaptor to suit	10005 for Group 2 pump with 2.4mm key
Quantity of SAE90 Gear Oil Required	0.220 Litres