It is advantageous to hold the front of the topper up slightly on the hydraulics of the tractor rather than letting the full weight of the topper just drag along on the skids.
-Creates less wear on skids
-Less strain on linkages when turning
-Less damage to the ground especially in damp conditions.
Ideally to set up park tractor and mower on a level yard.
1. Remove the top link.
2. Set rear wheel on the topper to the height you want.
3. Lift hydraulic arms so skids are say 2 inches off the ground.
4. Mark the position of your hydraulic control lever so you can easily regain this position....it may have a stop you can adjust/set
5. Reconnect your top link adjusting it to suit the length it now needs to be.
(it should rattle around with no pressure on it when you grab it. Too short it will have tension on it. Too long it will be in compression (unless the topper is one with chain stays going to the back in which case the top link should be long enough to leave these slightly slack- it enables the topper to follow the contours of undulating ground better))
Away you go.
You can fine adjust your hydraulics to get the ride height right if you are unhappy ie the skids touch the ground too much or the cut height is too high. it will depend how uneven your ground is. The skids will sometimes touch the ground, this stops the machine going too low and damaging your blade; it's fine.
If going gets too hard due to heavy crop lift hydraulics a bit more, cut once, then go over the land again at the lower height.
Hope that helps
Ps you can usually alter the height of the skids too , this is normally a spanner job and if the topper is old they will be siezed . The rougher the ground the higher you want the skids set, to protect the blade from contact with the ground.
You should seek an operators/user manual for your topper....a Google search will often turn up a free download.....reading a manual of another make is better than nothing.--read the manual for your tractor whilst your on a roll.
On a safety note,
1. Be aware stones can be flicked out of the topper at high speed, so always make sure bystanders are well clear when using the topper.
2. Never get off the tractor with the PTO still running...
3. Always switch the tractor off when attaching the PTO or making adjustments.
4. Do not wear loose clothing in particular scarfs when using PTO driven equipment...imagine what can happen if your scarf caught the pto whilst you are sat on the tractor. (it has happened)
5. If your PTO does not have a functioning guard..treat yourself to one, they might seem a little expensive..but what price do you put on your arm ?....or indeed your life. Its no good buying the guard after the incident !