Hardi COMMANDER 4500, Instruction Book

Page: 109 / 170

6 - Maintenance
107
50 Hours Service - Gearbox for TWIN System, Bolts
Check that the two mounting bolts on the gearbox are not loose.
Tighten the bolts if needed. Torque: 74 Ft/lb (100 Nm).
50 Hours Service - Transmission Shaft (PTO)
1.
Check function and condition of the transmission shaft protection
guard. Replace any damaged parts.
2.
Lubrication. See “Lubrication and Oiling Plan - PTO” on page 100.
50 Hours Service - Hydraulic Oil for TWIN System, Filter Change
Next filter change is after 500 hours or once a year, whichever comes
first.
Always change the oil filter if the pressure gauge indicates a red area,
meaning that the filter is clogged. Only the green area is suitable for
operation of the TWIN air system.
Check the filter for clogging once every 10 working hours when the oil
has reached working temperature.
How to Change the Filter
1.
Place a collection tray or a cloth under the filter (A) to collect waste
oil. Unscrew the filter cartridge.
2.
The new filter cartridge is filled with fresh hydraulic oil. Apply a thin
oil film to the cartridge seal.
For details on oil type, see “Recommended Lubricants” on page 95.
3.
Screw on the new filter cartridge until the seal is lying against the
flange.
4.
Tighten the filter cartridge another 1/2 to 3/4 turn.
5.
Check the oil level - fill oil if needed. When the oil level covers the
sight glass (B), the filling is completed. The minimum oil level is indicated by the red line in the sight glass.
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ATTENTION! Dispose of used hydraulic filter cartridges and waste oil in accordance with local legislation.