Spicer TPCS Troubleshooting Guide - Manual (Page 65)

62
Service Procedures
Air Filter Change
Air Filter Change
The "Air Filter Change" illustration shows the location of the air
filter in each wheel valve. This filter must be replaced when-
ever the tire or wheel valve is serviced. Use the illustration as
a reference in completing the air filter replacement as follows:
Be sure to use appropriate eye and ear protection.
Do not crush the air filter when installing adjustable
straight thread O-ring adapters.
Note: Air filters should not be cleaned or reused. Always
replace with a new air filter.
1. Working quickly to prevent air loss, remove the tire
hose assembly from the fitting on the tire port (near-
est the tire fill valve) of the wheel valve. Plug hose to
prevent air loss (SAE 37 degree flare plug, 3/8" tube
size, 9/16-18 thread).
2. Remove the adapter fitting from the tire port.
3. Use a flat blade screwdriver to remove (unscrew
counterclockwise) the air filter from the wheel valve.
Discard the used air filter.
4. Install a new air filter by pressing it straight into
wheel valve tire port.
5. Clean the adapter, replace and lubricate the O-ring if
necessary and reinstall the adapter in the wheel valve
tire port. Tighten to 16-19 lbs. ft.
6. Remove the plug and reinstall the tire hose assembly
to the adapter on the wheel valve tire port. Torque to
16-19 lbs. ft.
Note: For installation of adjustable straight thread O-ring
adapters, follow instructions in the service manual to
prevent crushing the filter.
WARNING
CAUTION
Adapter
Tire
Hose
Air
Filter
Wheel
Valve
Control Port
Tire Port