Checking Amount Of Oil In Hydrostatic Steering Tank; Replacing Oil And Hydrostatic Steering Filter Element - Zetor Major 80 Operator's Manual

CHECKING AMOUNT OF OIL IN
HYDROSTATIC STEERING TANK
Inspect daily before starting the opera-
tion with tractor standing horizontally. Lift
off the bonnet. Unscrew dipstick, wipe
off with a cloth and screw back in. After
repeated unscrewing of the gauge, the
level must not drop below bottom gauge
line. Replenish the oil when necessary
after demounting the cap of the tank.
MAINTENANCE INSTRUCTIONS
E719
REPLACING OIL AND HYDROSTATIC
STEERING FILTER ELEMENT
1. place a suitable vessel under the
hydrostatic steering tank
2. unscrew drain screw at the bottom of
the tank
3. drain the oil
4. unscrew the nut of tank cap
5. demount the cap of hydrostatic steer-
ing tank
6. remove and replace filter element
7. set the lid of the tank back in
8. lock its position with a nut
9. screw drain screw back in
10. disconnect both hoses from
working roller and waste pipe-
line from the tank (place ves-
126
G750
sels for used oil under working roller
hoses and waste pipeline)
11. start the engine and with idle run
(max. 10 seconds) turn the steering
wheel 2-3 times to both sides so that
you pushed oil from control unit and
pipeline
12. secure the tractor against movement
and lift front drive axle
13. place a vessel for oil under
the working roller and by turn-
ing the wheels (manually)
push the oil from working roll-
er
14. do the back assembly of all discon-
nected joints
15. fill the tank with oil and vent hydro-
static steering circuit.
E721