XL-AA20023TS-en-US Rev A · 2019-04-04 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Figure 2
SAF
®
Tire Pilot Plus
™
Pressure Management System
March, 2019
Troubleshooting Guide
All Trailer Axles
Refer to the link here for a troubleshooting video.
https://vimeo.com/user82815417/review/262250351/e88ebf4fc5
Symptom:
Warning Light on
Problem:
System air pressure low between 10-20 PSI of regulator
setting.
Solution:
Check for system air leaks. Connect air supply and pressurize
air tank. Open Tire Pilot Plus air system valve on the regulator
box as illustrated in
Figure 1
. If the leak is audible, use soapy
water to pin point the leak. If the leak is not audible, disconnect
all tire hoses from the hubcaps as illustrated in
Figure 2
.
If after removing tire hoses light stays on, the leak is present
between the hubcap and the air tank. Check the axle vents,
hubcap fittings, air tank fittings, pressure protection valve, and
airline external to the axle for leaking air with soapy water. If
after removing the tire hoses the light shuts off, the leak is at
the tire or tire hose. Reconnect each tire hose until the light
comes back on to pin point the leak. Once the leaking wheel
is found, use soapy water to discover the source including
wheel hoses, valve stems, rim to tire, and tire tread. Repair or
Replace leaking component as necessary or move to the next
appropriate troubleshooting section below.
Figure 1
VALVE (FOR SYSTEM
PRESSURE CHECK)
AIR SYSTEM VALVE
(SHOWN OPEN)
