HYTEC F1000, Operations & Parts Manual

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III. Change the hydraulic oil ---2000 h
Replace the hydraulic oil suction filter element ----every 1000 h
Caution:
do not do so until the hydraulic oil cools down as it may be very hot.
1. Park machine on the flat ground.
2. Completely retract the arm cylinder and extend out the bucket cylinder, so as to locate the machine.
3. Lower the bucket onto the ground.
4. Idle engine at low speed for 5min.
5. Shut down engine Unplug the ignition key.
6. Dismantle the covers
7. Clean the top of hydraulic oil reservoir to avoid any dirt into its system.
8. Slowly open the hydraulic oil cap to release the pressure.
9. Loosen and take down the oil-pickup filter element cap.
10. Loosen and take down the drain plug at bottom of hydraulic oil tank to drain the oil out of tank.
11. Take out the oil-pickup filter and the levers.
12.
Caution: the hydraulic oil tank has pressure. Slowly open the hydraulic oil cap to release the pressure before
taking off the cap!
13. Clean the filter and inside of hydraulic tank.
14. Use oil -pickup pump to suck the oil residue out of bottom of hydraulic oil tank.
15. Put on the filter and the levers to make sure the filter is correctly fixed onto the outlet.
16. Clean and re-install the drain plug onto the bottom of tank.
17. Add the oil until between markers on oil dipstick.
18. Put on the oil-pickup filter element cap to make sure the filter and the levers are at correct position and then
tighten the bolts to 49N.m.
Important: with no oil in hydraulic pump, starting up of engine may damage to hydraulic pump!
19. Tighten the oil tank cap.
20. With engine idling at low speed, slowly and steadily control
the lever for 15min to drain the air out of hydraulic system.
21. Completely retract the arm cylinder and extend out the
bucket cylinder, so as to locate the machine.
22. Lower the bucket onto the ground.
23. Turn off the engine. Unplug the ignition key.