Hendrickson HXL5 - Inspecting Hub Installation; Install Hubcap

13
T72007 A
HXL5
®
HUB MAINTENANCE PROCEDURES
If washer and nut teeth DO NOT align, DO NOT
ROTATE NUT� Flip interlock washer over and
reinstall�
NOTE: The PRECISION240 and PRECISION320
interlock washer and nut are designed so that
one side of the washer will always engage the
spindle nut teeth without readjusting the nut�
IMPORTANT: Teeth between the interlock washer and
precision spindle nut must fully engaged
as shown in Figure 13� DO NOT ADJUST
NUT TO ALIGN INTERLOCK WASHER�
10� Install two button-head cap screws (Figure 11)
into the precision spindle nut until the heads of the
screws just contact the face of the nut�
11� Tighten cap screws to:
SPINDLE
TYPE
PRECISION
NUT SYSTEM
CAP SCREW TORQUE
ft. lbs. Nm
HN PRECISION240
®
10
±
2 13�5
±
2
HP PRECISION320
®
15
±
2 20
±
2
INSPECTING HUB INSTALLATION
To ensure correct installation, follow these procedures:
1� Ensure interlock washer is fully seated in
PRECISION240
®
or PRECISION320
®
spindle nut
(Figure 13)�
2� Ensure heads of both cap screws contact nut face�
3� Check end play using CHECKING END PLAY on
page7 �
If end play is between 0.001 and 0.005 inch
(0�127 mm), continue with INSTALL HUBCAP�
If excessive end-play (nut too loose):
A� Remove two cap screws and pull interlock
washer away from nut, but not off spindle�
B� Tighten spindle nut until next washer tooth is
aligned�
C� Reassemble interlock washer and button-head
cap screws�
D� Return to CHECKING END PLAY on page7�
If insufcient end-play (over clamped):
A� Remove two cap screws and pull interlock
washer away from nut, but not off spindle�
B� Back-off spindle nut until next washer tooth is
aligned�
C� Reassemble interlock washer and button-head
cap screws�
D� Return to CHECKING END PLAY on page7�
NOTE: If the above steps have already been
performed and end play is still out of tolerance,
return to HUB REMOVAL on page9 to
remove and reinstall hub� If difculty continues,
refer to CONTACTING HENDRICKSON on
page4�
4� Perform the CHECKING FOR SMOOTH ROTATION on
page7�
INSTALL HUBCAP
After the hub installation and inspection is complete,
the hubcap can be installed�
IMPORTANT: Always install a new gasket when
reinstalling hubcap�
NOTICE: Interference between nut system
and hubcap could occur if improper
components are used. Use only
genuine Hendrickson or Hendrickson
approved replacement components.
Refer to RELATIVE LITERATURE
on page4 or CONTACTING
HENDRICKSON on page4 as
needed.
1� Visually inspect hubcap, hub mating surface, bolt
holes and new gasket for:
• Signs of damage
• Debris, such as silicon gasket sealer
• Burrs or sharp edges
• Cracks
2� Clean, repair or replace as needed�
3� Align hubcap and new gasket onto hub and insert
bolts�
4� Hand-tighten bolts�
5� Using a star pattern, tighten hubcap screws to
15
±
3 ft� lbs� (20
±
4 Nm) torque�
NOTICE: DO NOT overtighten hubcap screws.
Overtightening will distort metal
hubcap mounting ange, which will
prevent hubcap from achieving a
leak-free seal.