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5.8. Adjustment of the land wheels clearance
When the new spreader has made the first 100 km and after every next 1000-1500 km of its operation, check
the clearance of the land wheel bearings and adjust it if necessary.
Fig. 7. Checking the clearance of the land wheel bearings.
Check the clearance of the land wheel bearingss as follows:
Couple the spreader with the tractor on the lower hitch and engage the tractor parking brake. Jack up one side
of the spreader to lift the wheel from the ground on this side and secure the spreader from falling. Attempt to turn
the wheel in order to check the bearing clearance, see Fig. 7. If the wheel clearance is too large, remove the hub
cap, remove the cap seal and the crown nut clevis pin. Rotate the wheel and tighten the crown nut at the same time
until the wheel stops. Now loosen the crown nut by 1/6-1/5 of the full turn, i.e. to the nearest clevis pin groove.
Install a new clevis pin, new seal and mount the hub cap. Repeat for the other spreader wheels.
6. MAINTENANCE AND SERVICING
6.1. Hydraulic system servicing
The hydraulic system oil of the spreader and the external hydraulic system oil (tractor) must always be of the
same grade.
DO NOT use different oil grades. The system has the SAE 80W viscosity oil.
Caution! The hydraulic hoses must be replaced after 6 years from the date of manufacture.
The spreader hydraulic system must be absolutely leak-tight. If there are oil leaks at the hydraulic connections,
tighten them; if the leak persists, replace the hose or the connection fittings. The hydraulic hoses must also be
replaced upon any mechanical damage.
The condition of the hydraulic system must be monitored continuously throughout the operating life.
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