Spicer TPCS (Tire Pressure Control System) Service Manual - Manual (Page 35)

35
Inlet Tube Installation
See Figure 20A.
1. Apply lubricant to two small O-rings and place in
grooves on inlet tube assembly.
2. Install inlet tube assembly into back of knuckle
assembly. Refer to Inlet Tube Removal (Steer
Axles Only).
• Align inlet tube so that 37° male flared fitting
faces the rear of the vehicle and will not
interfere with steering action of the knuckle
after installation.
3. Secure inlet tube to back of knuckle with tube
retainer using 1 /
4
x 20 socket head screw and a
removable thread locking compound.
4. Plug the spindle and perform a leak test on the
inlet tube before installing the knuckle assembly.
5. Refer to the axle service manual and reinstall:
• knuckle assembly
• brake assembly
• wheel hub, seals and bearings
• wheel bearing adjuster nut
6. Secure inlet tube bracket to back of knuckle with
previously removed hardware.
Spindle Adapter Removal (Trailer Axles Only)
The spindle adapter must be removed if there is an
internal air leak in the trailer axle.
1. Disconnect fittings at flange nut on trailer axle (see
Figure 21 items 2, 3, 4).
2. Attach slide hammer in opening of spindle adapter
where rotary joint was fastened ( 9 /
16
18 thread) and
remove adapter and internal air line.
Non-Drive Axle Wheel End
Service
Hubcap Removal/Service
Inlet Tube Removal/Installation
Retainer
Bracket
Figure 20A Inlet Tube Installation (Steer)