Tire - wheel - hub service & repair, Figure 6 wheel hub re-assembly, Figure 7 – Alamo HYDRO 15 User Manual

Page 129: Figure 8

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Section 8 - 5

HYDRO 15 (Service Manual) 09/06

Alamo Industrial

Tire - Wheel - Hub Service & Repair

One Piece Seal

Seal

Adapter

Seal

Protector

Three Piece Seal

Seal

XXXX

FIGURE 6

Wheel Hub Re-Assembly:

Important Note:

There are

two types of hubs (figure 3 &

that have been used, these are best Identified by the

seal type. The earlier type has a one piece seal

(figure 3).

The later type has a three piece seal (seal, inner seal
adapter and outer seal protector). If the hub you are working
on has a one piece seal it must be re-assembled using the
components of the one piece seal hub. If it is a three piece
seal

(figure 4)

it must use components for three piece seal

hub. The parts for the two different hubs (bearings or seals)
won't interchange. Check which you have before ordering
parts. See

figure 3 &

for items referenced in the steps of

dis-assembly.

Inspect the wheel hub and hub components

(figure 3 &

4 item 1 through 14 )

, they should not have noticeable wear

or wear that in any way would make them un-serviceable.
Bearing Cones and cups must be replace together, do not
use a used bearing part against a new bearing part, the
bearings will fail as bearings wear on the cones and cups to
match each other. Lay all the new and/or serviceable parts
out on a clean surface

(figure 5) .

Install new bearing cups

(items 9 & 10)

into hub if

needed. If the cups need to be replace they should be
pressed in or installed with a driver designed for bearing
cup installation

(figure 3 & 4)

. <ake certain the bearing

cups are fully seated into the hub squarely and completely

(figure 8).

Pack Wheel bearing Cones

(items 6 & 7)

. This can be

done with a bearing packing tool or it can be done by hand.
Grease must be pushed through

the roller cage

(figure 7)

all

the way around and completely. If grease is not pushed in
to bearings around rollers and out the top and around rollers
of bearing cones, they are not properly packed with grease,

this is important!

Lay the Hub with the outer bearing

opening down and insert the inner bearing cone that has
been properly packed with grease

(figure 8).

Install wheel seal, Now is when the correct seal must

chosen and installed.

If old style 1 piece seal

(figure 5 & 6)

is used, drive the

seal in to the wheel hub using the correct seal driver. Make
certain the seal ID has light coat of grease on it.

If new style 3 piece seal

(figure 6 & 8)

is used, coat the

OD of seal adapter with a Locktite type sealer. Drive the
seal adapter into the hub with the open side up, this open
side is the recess for the seal. Make certain seal adapter is
seated into hub completely. Insert the seal into the seal
adapter and drive it into the adapter until it is seated

(figure

8).

Coat the ID of the seal with light coat of grease.

FIGURE 7

Roller Cage

Grease must be

pressed between

rollers and inner

race and it must

be pressed out

around rollers

FIGURE 8

Innser Bearing

Cone with inner

bearing cup

installed

3 Piece Wheel Seal

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