SAF-HOLLAND XL-AR363-02 EDL/ARF Feature - Manual (Page 14)

XL-AR363-02 Rev. D 14
EDL/ARF SYSTEM TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE and REMEDY
Incorrect plumbing of the sensor valve. Check and repair as required.
(See pages 7 and 10.)
One-way check valve malfunction. Check and repair or replace as required.
(See page 8.)
EDL actuator or sensor valve malfunctioning. Check and repair or replace as required.
( See pages 7 to 11.)
Primary HCV mis-adjusted or malfunctioning. Check and repair or replace as required.
( See pages 12 and 13.)
Pilot valve malfunctioning. Check and repair or replace as required.
( See page 12.)
Diaphragm on EDL actuator ruptured. Replace as required. ( See pages 4 and 5.)
Sensor valve linkage is the wrong length. Replace linkage with Linkage Ass’y.
(See FIGURE 21, page 10 .) ( See pages 7 and 10.)
No air flow out of pressure protection Check specified air pressure. Minimum
valve from the air reservoir. 70 psig (4.8 bars) required in air reservoir.
EDL actuator or sensor valve mis-adjusted Check and adjust or replace as required.
or malfunctioning. ( See pages 7 to 11.)
Pilot valve malfunctioning. Check and repair or replace as required.
( See pages 8 and 12.)
Push rod of EDL actuator is bent. Replace as required. ( See pages 4 and 5.)
Cam bracket that connects to EDL actuator Repair or replace as required.
is damaged or weld is broken.
Diaphragm on EDL actuator ruptured.
Replace as required. ( See pages 4 and 5.)
Sensor valve linkage is the wrong length. Replace linkage with Linkage Ass’y.
(See FIGURE 21, page 10 .) ( See pages 7 and 10.)
No air flow out of pressure protection Check specified air pressure.
valve from the air reservoir. Minimum70 psig (4.8 bars) required
in air reservoir.
No air flow to ARF system pilot valve. Check for breech in air supply line and
repair/replace as required. ( Pgs 6, 7, & 12.)
Vehicle overloaded or unevenly loaded. Check wheel loads and correct as needed.
Primary HCV mis-adjusted or malfunctioning. Check and repair or replace as required.
( See pages 12 and 13.)
Trailer not at proper ride height. Check and adjust if needed.
( See pages 12 and 13.)
Flipper plates will not
Cam bracket that connects to EDL actuator Repair or replace as required.
swing down completely.
is damaged or weld is broken.
Ride height set improperly (too low). See pages 12 and 13.
Actuator push rod needs adjustment. Need 5/8˝ (25mm) gap.
IMPORTANT:
Apply air system pressure in excess of 85 psig
(5.9 bars) before doing any performance checks.
Failure to chock tires prior to beginning
maintenance could allow vehicle rollaway
which, if not avoided, could result in death or
serious injury.
Air is continually leaking
out the exhaust port of the
sensor valve.
Trailer is at full extension
and suspension is pulling
on shock absorber.
Flipper plates are trapped
in the down position.