33–05 Steer Axle Hub Cap Vent
Plug Inspection
General Information
As a function of their design, hubcap vent plugs will
on occasion exhibit signs of hub oil on their exterior
surface. Depending on environmental conditions
and/or age of the plug, the amount of oil present can
vary. This is a normal result of the venting process
due to pressure increase within the hub cavity. For
an example of normal vent plug appearance, see
A vent plug can wear or be damaged and cause ex-
cessive leakage, or allow water to enter the hub and
contaminate the oil. For examples of a leaking vent
plug, see
and
. Evidence of a leaking
vent plug may appear as;
•
Oil splatter around the wheel
•
Gooey/gummy oil around the vent plug purge
point
•
Hub/plug area is dirty, and water contaminated
oil in the hub.
•
Hub/plug area is clean, but there is water con-
taminated oil in the hub. (pressure washing is
the most likely cause)
Inspection
NOTICE
Only remove vent plugs by hand. They can be
damaged if a tool is used. Wipe the hub/plug area
f330298
09/01/2016
Fig. 14, Normal Oil Venting
f330299
09/01/2016
Fig. 15, Excessive Leakage
f330300
09/01/2016
Fig. 16, Water in Oil
Front Axle
33
47X and 49X Maintenance Manual, August 2020
33/12
Содержание 47X 2020
Страница 2: ......
Страница 10: ......
Страница 26: ......
Страница 28: ......
Страница 32: ......
Страница 34: ......
Страница 36: ......
Страница 38: ......
Страница 42: ......
Страница 48: ......
Страница 52: ......
Страница 54: ......
Страница 62: ......
Страница 70: ......
Страница 72: ......
Страница 78: ......
Страница 80: ......
Страница 94: ......
Страница 96: ......
Страница 106: ......
Страница 108: ......
Страница 110: ......
Страница 112: ......
Страница 118: ......
Страница 132: ......
Страница 134: ......
Страница 138: ......
Страница 144: ......
Страница 146: ......
Страница 148: ......
Страница 150: ......
Страница 154: ......
Страница 158: ......
Страница 166: ......