Tire - wheel - hub service & repair, Figure 10, Figure 9a – Alamo HYDRO 15 User Manual

Page 130: Figure 9

HYDRO 15 (Service Manual) 09/06

Alamo Industrial

Section 8 - 6

Tire - Wheel - Hub Service & Repair

Install wheel seal protector

(item 8).

This will only apply

to units with the new style three piece seal.

The three

piece seal has a seal protector that drives onto the axle
spindle

(figure 9 & 11).

An easy way to install the seal

protector on to the spindle is with a driver that is hollow ID and
has the correct diameter to drive it on. Another way is to heat
the seal protector in an oven to about 250° to 300° then while
still hot, drive it on. Use caution because it is hot, make
certain to drive it on straight while it is still hot. The seal
protector allows the hub seal and seal adapter to be covered
by the seal protector when completely assembled.

Make certain ID of seal has light coat of grease. Slide Hub

(w/ Inner Bearing cone and seal installed into hub) onto
spindle. Slide Hub up until the hub inner bearing cone is
against the machined area of the axle spindle

(figure 10 &

10A)

Insert outer bearing cone

(item 6)

(that has been packed

with grease) into the outer part of hub. Support hub with your
hand or the weight of the hub could push the outer bearing
cone back out. Insert the bearing adjusting nut washer

(item

onto the shaft. Screw the bearing adjusting nut

(item 4)

onto spindle, once the adjusting nut is started you will not
have to support the hub as the outer bearing cone cannot
slide out.

Adjusting wheel bearing. The wheel bearing are a cup and

cone type, these type bearings require a preload setting.
Tighten adjusting nut

(item 4)

until all end play (in and out) is

eliminated on bearings. (DO NOT tighten adjusting nut so
tight the bearings are damaged). Back off on adjusting nut 1/6
turn

(one flat spot of hex shape of nut)

. When turning hub you

should feel a drag on it but hub should turn with little effort.
Adjusting nut 1/6 turn at a time until adjusted and bearings
have no end play..

Axle Spindle

One Piece

Seal

Grease Fitting

Inner Bearing

Cone & Cup

Hub

Outer Bearing

Cone

Outer Bearing Cup

Lug Nut
(Coned)

Wheel Stud

Spindle

Washer

Bearing

Adjusting

Nut

Cotter

Dust

Cap

FIGURE 10

1234

Whl Hub Asy
(1 piece Seal)

Seal Protector

Drives Onto

Spindle

Axle Spindle

FIGURE 9A

Axle Spindle for the 3 piece Seal

Axle Spindle

FIGURE 9

Axle Spindle for the 1 piece Seal