Hardi NAVIGATOR EAGLE 3000, Instruction Book

Page: 130 / 178

6 - Maintenance
130
250 Hours Service - Air Brake Filters
1.
Clean the area around air filter(s) and disconnect air hose from the
tractor.
2.
Hold one hand under the filter housing, and pull out the retainer
clip (A). The springs inside the filter housing will push out the filter
cartridge assembly.
3.
Clean the filter cartridge. Use water and an appropriate detergent
or compressed air.
4.
Dry the parts and reinstall in the order shown. Lightly lubricate the
O-ring with silicone grease before installation.
±
WARNING! Never dismantle the filter without having the tractor
disconnected and pressure relieved.
1000 Hours Service - Wheel Bearings (No Brakes)
Check the condition of the bearings in the following way:
1.
Place stop wedges in front of and behind the left wheel and jack
up the right wheel.
2.
Support the trailer with axle stands.
3.
Remove the wheel.
4.
Unscrew the 6 bolts and remove the hub cap (A), cotter pin (B) and
castle nut (C).
5.
Pull off the wheel hub (D). Use a wheel puller if necessary.
6.
Remove roller bearings (E). Clean all parts with a degreasing
detergent and wipe them.
7.
Check roller bearings (E) for discolouration and wear. Replace if worn or damaged.
8.
Assemble the hub (D) and bearings (E) using a new sealing ring (F).
9.
Fill the hub (D) and bearings (E) with new grease, before fitting them to the wheel axle.
10.
Fit the castle nut (C). Rotate the hub (D) and tighten the castle nut (C), until a slight resistance in the rotation is felt.
11.
Loosen the castle nut (C) again, until the first notch is aligned with the cotter pin hole in the axle.
12.
Fit a new cotter pin (B) and bend it to keep it in place.
13.
Fit the hub cap (A) to the hub (D). Slightly tighten the 6 bolts.
14.
Fit the wheel again and tighten the wheel nuts. See section “50 hours service” regarding torque wrench setting.
Tighten all bolts to half the specified torque at first, then tighten to the full specified torque.
15.
Tighten again after 10 hours of work. Check the torque every day, until it is stabilised.
μ
ATTENTION! The wheel axle has a vertical and an horizontal cotter pin hole. Use the one first aligned with the notch,
when loosening the castle nut.
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WARNING! If you do not feel totally confident changing wheel bearings, then contact your HARDI dealers workshop.
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