Pneumatic service – Spicer TPCS (Tire Pressure Control System) Service Manual User Manual
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1.
3
/
8
" NPT run Tee
2.
3
/
8
"male NPT to
1
/
4
" female NPT
reducing adapter
3. Pressure switch
4.
1
/
2
" NPT run Tee (varies with vehicle mfg.)
5.
1
/
2
" male NPT to
1
/
2
" nylon air brake tubing fitting
6.
1
/
2
" nylon air brake tubing
From
Air Dryer
Wet
Tank
1
2
3
5
4
6
To Pneumatic
Control
Unit
Relief
Valve
D O T
Note: Do not install pressure
switch in supply line to the Pneumatic Control Unit.
Drain Cock
Figure 11 Routing for Wet Tank Pneumatics
Pressure Switch
Pressure Switch Replacement
1. Disconnect the electrical connector of the existing
Pressure Switch.
2. Unscrew the existing Pressure Switch.
3. Install the new Pressure Switch so the electrical
connector on the Pressure Switch faces up.
Torque Pressure Switch to 15 lb.ft. maximum.
Note: Area highlighted shows typical connections. Actual fittings may vary by vehicle manufacturer.
4. Connect the cable to the electrical connector of the
new Pressure Switch.
5. Start the vehicle and test the Tire Pressure Control
System.