Hendrickson HXL5, Maintenance Procedures

11

T72007 A

 HXL5

®

 Hub Maintenance Procedures

6� 

install

 inner bearing into hub (Figure 1 on 

page 5)� 

noTe: 

A hub seal driver (Figure 9) is recommended 

and can be obtained from seal manufacturer�

7� 

Lubricate

 seal according to seal manufacturer’s 

recommendations�

8� 

Place

 seal onto the drive tool (Figure 9) for 

installation into the hub according to seal 

manufacturer’s instructions� 
A� 

align 

seal tool with hub seal bore�

B� 

drive 

seal until it bottoms out in the hub seal 

bore� 

C� 

rotate

 installation tool and apply several light 

blows to ensure seal is properly seated� 

D� 

check 

inner bearing to ensure it rotates freely�

HuB anD ouTer BearinG aSSemBly

With seal and inner bearing in place; the hub, SF 

(Semi-Fluid) grease and the outer bearing can now be 

installed onto the spindle; in that order�

CauTion:  For safety reasons, to prevent injury 

and damage to the hub and spindle, 

lifting equipment may be required to 

lift and support the hub as it is being 

installed onto the spindle.

noTe: 

Refer to MAKING A HUB SF GREASE DAM on 

page 14 for instructions on making the dam�

noTiCe:  When completed, the hub should 

be filled to 50% of hub cavity (to 3 

& 9 o’clock position when viewing 

from end of spindle). any air bubbles 

or aeration of grease may result in 

insufficient grease quantity, bearing 

spalling and wheel-end damage.

Hub

Pre-lubricated 

outer bearing

SF grease dam

Figure 10: SF grease dam application

1�  Taking care not to damage the seal, 

gently slide

the hub onto spindle until the seal is against the 

spindle seal journal (Figure 3 on page 7)�

noTiCe:  The HuB Seal Can Be DamaGeD if:

•  Hub seal is improperly installed.
•  Hub seal is rammed into the 

spindle bearing shoulder.

•   Hub is not kept supported and 

aligned with spindle until the 

outer bearing and axle nut are 

installed.

•  lubricant types are mixed during 

hub assembly.

2� 

support

 and DO NOT allow hub to move off center 

while completing the assembly�

3�  With the hub supported in position as shown in 

Figure 10, 

place and hold

 the SF grease dam so it 

covers the lower half the hub opening�

4� 

Fill

 hub cavity to the top of the dam (3 & 9 o’clock 

position when viewing from end of spindle) with 

Chevron Delo

®

 Synthetic Grease SF�

5� 

Pre‑lube 

outer bearing with a coating of SF grease�

6� 

Place

 grease coated outer bearing over the spindle 

and against the SF Grease Dam�

7� 

slide

 the dam out as the bearing is inserted into 

the hub outer bearing cup�

8� 

clean

 as needed to remove grease from unwanted 

areas�

noTe: 

While sliding hub onto spindle, grease is 

collected at the spindle seal journal inboard of 

the hub (Figure 3 on page 7)� This may be 

later interpreted as a grease leak and should 

be cleaned�

9�  Continue with INSTALLING PRECISION SPINDLE NUT 

SYSTEM�