E-Z Lube Hubs And Cool Hubs - Ranger boats 522VX Owner's Manual

E-Z LUBE HUBS
These hubs have a unique method of lubrication.The grease actually
fills from the rear bearing and the back of the hub, forward to the outer
bearing.Since the E-Z Lube Hub, properly maintained, lubricates the rear
bearing first, all air is forced forward out of the hub, making for a more
perfect seal.
The wheel bearings are lubricated via flush mount Zerk fittings in the
end of the spindle. These bearings should be serviced every 10,000 miles
or one (1) year.
To do so, jack up the trailer and remove the wheel. Remove the dust
cap by lightly tapping with a hammer and screwdriver on the cap edge
where it meets the hub. Using a grease gun with a needle attachment
(available at most parts stores), place the needle in the Zerk and pump
until new grease appears around the outside bearing. Remove excess
grease from bearings and cap, then reinstall the cap with a gasket sealer
around the sealing lip. Drive the dust cap in place with a rubber hammer
and reinstall wheel.
COOL HUBS
Contained Oil Orbital Lubrication (COOL) Hubs feature:
• ADDING LUBRICANT - Lubricant is added through threaded port on
nose of hub. This allows for easy access and maximum filling of hub
cavity with oil.
• LUBRICANT - Uses standard 50 weight motor oil.
• PRESSURE CONTROL-THERMAL EXPANSION - Hub cavity is
completely filled with oil.There is no void which could allow water entry
during submersion of trailer in water and cooling of oil.
• SEALING - FRONT - Stainless steel barrel is press fit into hub. A seal
is used between hub bore and barrel. Double quad-rings on piston
riding on a stainless steel surface to help prevent any leakage.
• SEALING - REAR - A factory installed stainless steel collar is press
fitted and sealed onto spindle. A coated double lip inner hub seal riding
on the stainless steel collar keeps pressurized oil in and water out of
hub.
If your trailer is equipped with COOL Hubs, the system should be
serviced once a year or every 20,000 miles whichever comes first. To do
so, simply remove the plug located in the hub nose, rotate the hole to the
bottom position to drain the oil, refill the hub completely with
approximately 5 oz. of 50 wt, standard (non-synthetic) motor oil and
reinstall plug.
Your RangerTrail Trailer
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