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ExTERIOR
Nev-R-Lube Bearing Inspection
1.
Jack trailer at marked jack location pad behind axle on main frame.
2.
Check for excessive wheel end clearance by pulling the tire assembly
towards you and by pushing the assembly away from you. Slight end play
is acceptable.
D
3.
Rotate tire slowly forwards and backwards. The wheel assembly should
turn freely and smoothly.
4.
Excessive wheel end play, restriction to rotation, noise, or "bumpy" rota-
tion should be remedied by replacing the bearing unit.
5.
Bearing units should be inspected every year or 12,000 miles whichever
comes first.
A slight amount of grease weeping from the seal area is normal. Excessive
leakage may indicate abnormal bearing operation. Bearing end play inspection,
drum removal/installation, and bearing replacement procedures are described
in the Dexter Operation Maintenance Manual enclosed in you owner's packet.
Airstream recommends that these procedures are preformed by a qualified
Dexter service technician due the need of specialized tools and training.
Narrow body trailers, under 25 ft, should be maintained as follows:
1. Jack trailer at marked jack location pad behind axle on mainframe,
2. Remove hubcap or spindle cover, wheel and tire.
3. Remove cotter pin.
4. Remove dust cap.
5. Remove spindle nut and washer.
6. Remove bearings, hub and rotor.
7. Lay down hub and rotor with inside grease seal down. Knock out inner bear-
ing and grease seal using wood or plastic dowel and hammer.
8. Clean all parts thoroughly with kerosene.
9. Check all bearings and races for chips or roughness of any kind. Any dam-
aged component must be replaced.
10. Pack bearing with a good grease (No 2 grade-265 ASTM penetration or
equivalent).
11. Install inner bearing.
12. Install new grease seal in hub or rotor using wooden or rawhide mallet.
13. Install hub and drum on spindle.
14. Install outer bearing.
15. Install washer and spindle nut.
16. While rotating the wheel, tighten the spindle nut with a 12" wrench until
there is a slight tension. Then back off one notch and install cotter pin. There
should now be from .001" to .010" end play in hub. If not, back off one
notch.
17. Check the lug nuts at 10, 25 miles and recheck at 50 miles of travel.
See Chart in Specification Section in this manual for wheel torque ratings,
page I-1.
D - 6
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