Hardi COMMANDER TWIN FORCE Series, Instruction Book

Page: 87 / 110

6 - Maintenance
6.23
If the hydraulic fan transmission has been dismantled, or pump or
motor has been changed, the following priming procedure must be
carried out before starting up the transmission:
1. Fill the oil reservoir with fresh, clean oil to the top of the sight
glass.
2. Fill the pump housing with oil through the drain pipe (D) which is
dismantled at the tank connection. Reconnect and tighten.
3. Check the oil level in the gear box.
4. Remove the drain hose (D) from the motor outside the blower
housing.
5. Set the fan r.p.m. at 0, engage the tractor P.T.O. with the engine
running idle - wait a few minutes.
6. Set the fan speed at 200 r.p.m.
7. After a while the oil will start dripping constantly. Refit the drain
hose and tighten.
8. With the tractor P.T.O. at 540/1000 r.p.m. the fan should rotate at
max. revolutions/min.
9. Recheck oil level at tank sight glass.
10.Check vacummeter at the suction filter.
11.Retighten hose connections and check for leaks.
12.Check fan speed and feed pressure adjustments - see section on
“Fan transmission pressure adjustment”.
Fan transmission priming