Hendrickson HXL5 - ADB Hub and Rotor; Inspection; Table 2. List of Required Tools; Tools Required

6
T72007 A
HXL5
®
HUB MAINTENANCE PROCEDURES
ADB HUB AND ROTOR
For air disc brake (ADB) systems, the caliper must
be removed before removing the hub and rotor
assembly� ADB rotor and caliper mounting is dened in
Hendrickson literature number T71004 Hub and Rotor
Assembly and Caliper Mounting Procedures� Original
mounting hardware must be discarded, once removed,
and replaced with new hardware during reassembly�
Procedures for service and repair of Hendrickson’s
MAXX22T™ ADB can be found in Hendrickson literature
number T72009� For component replacement and
repair of ADB systems and rotors manufactured by other
vendors, links to Bendix, ConMet, Haldex and Wabco
literature is available at
www�hendrickson-intl�com/TrailerLit�
TOOLS REQUIRED
The following tools may be required during the
performance of some maintenance procedures:
TOOL WHERE USED
Torque Wrench
(10 - 200 ft� lbs� or
13 - 271 Nm)
To be used with sockets listed in
this table�
HN
3
13
/
16
inch socket
INSTALLING PRECISION SPINDLE
NUT SYSTEM on page12
5
/
32
inch hex key
HP
4
7
/
8
inch socket
3
/
16
inch hex key
1
/
2
inch socket INSTALL HUBCAP on page13
1
/
4
or
5
/
16
inch hex key Lube ll port plug (Figure 1)
Dial Indicator, with mounting
stand (resolution to 0�0001",
0�002 mm)
End-play measurement (Figure 4
on page8)
HUB SF GREASE DAM TEMPLATE
on page15
HUB AND OUTER BEARING
ASSEMBLY on page11
Table 2: List of required tools
IMPORTANT: Torque (Table 3 on page14) cannot
be properly applied with an ordinary
wrench� A calibrated torque wrench must
be used to tighten fasteners to specied
values�
INSPECTION
At regular intervals, the HXL5
®
hub assembly should be
checked for seal leaks and smooth rotation�
WARNING: Prior to performing inspection
procedures, help ensure conditions
are safe by following section
PREPARING TRAILER FOR SERVICE.
NOTE: Recommended inspection intervals are based
on an average trailer usage of 100,000
miles (160,000 km) per year� Higher usage
would require more frequent inspections�
Refer to Hendrickson literature number L578
Suspension Preventive Maintenance Guide for
more details�
Inspections should be performed:
• Daily pre-operation check� This would include a
general walk around to check for signs of obvious
damage, wear or other abnormalities�
• Every month, visually inspect back of the hub and
the hubcap for leakage� Refer to the section titled
CHECKING FOR SEAL LEAKS for complete inspection
details�
• Every three to four months:
− Perform monthly inspection�
− Check for smooth rotation�
» Refer to the section titled CHECKING FOR
SMOOTH ROTATION for details�
» If assistance is required or the hub feels
rough, sounds noisy or does not rotate freely,
refer to CONTACTING HENDRICKSON Technical
Services department for further assistance�
• During brake service - at this time, wheels are
removed making it easy to perform quarterly
inspections�
Refer to Hendrickson literature number L578 for
additional recommended suspension inspection
procedures�