New direction 10 years on

The second one with the plug is to allow the pump to circulate the oil in the reservoir when the hoist control is in neutral so the oil doesn't overheat.

 

I don't run a filter on mine, so not sure how they're typically plumbed. You definitely want to put that sleeve in so cool oil will circulate in the pump when you're in Hold position with PTO engaged. Sometimes while paving, they'll slow to a walk to "buy time" for next truck(s) to get on scene so they don't have to stop.

 

Go to 12:00 mark of this video and it shows how they plumb for a dump or belt trailer with a filter.

 

Good tip for doing graphics is use magnets to hold in place. FYI

 

If you're using the fitting on the end as the suction line you need to reroute that lower. It will suck air if the line is above the oil level in the reservoir.