operators_manual

Rear Suspension Controls
The truck comes equipped with an
electronically operated height control valve
for the rear suspension.
The electronic control valve simplifies the
drop and hook processes. This saves time
for the driver while also reducing the risk of
strain or injury to the driver when working
with heavy loads.
Operation Summary
Current
Status
Desired
Mode
Action
Required
Normal Dump Press
Dump
Suspensio
n Switch
Normal Raise Press Raise
Suspensio
n Switch
Dump Normal Press
Dump
Suspensio
n Switch
Current
Status
Desired
Mode
Action
Required
Raise Normal Press Raise
Suspensio
n Switch
Raise Dump Press
Dump
Suspensio
n Switch
LED Indications
A red and green LED are used to indicate
the specific valve operating mode (Dump
or Raised) and system error codes. If the
red LED is flashing or error codes are
present, continue driving only after
verifying the suspension is in a state to
allow safe vehicle operation.
Flashing Red LED – Indicates the valve is
not operating normally or may not have
power
.
Green LED – Indicates the specific valve
operating mode using a repeating pattern.
It will also display valve error codes by
flashing two groups of blinks for each error
detected.
Steady On –Valve Initialization or Fault –
The LED will activate shortly after the
ignition is turned on. A steady light after a
few seconds indicates a problem with the
valve or wiring.
Long Blinks – Rear Suspension in Dump
Mode – One second on, one second of
f
Short Blinks – Rear Suspension in Raise
Mode – ¼ Second on every two seconds
Two Groups of Blinks – Error Codes – The
system identifies several fault conditions
using two groups of 1-4 blinks for each
condition detected. For example, one blink
followed by two blinks indicates error code
12. All active error conditions are
repeatedly shown in sequence.
Lowering Rear Suspension
Press and hold the Dump Suspension
switch for approximately one second, and
then release, to dump the rear suspension.
The green rear suspension LED begins
flashing once the suspension starts to
lower. The LED continues to flash to
indicate the vehicle is not at standard ride
height.
To return to standard ride height, press and
hold the Dump Suspension switch for
approximately one second and then
release. The green LED stops flashing
CONTROLS - Rear Suspension Controls
Y53-6096-1C1 (09/20) 79
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