Lit. No. 27366, Rev. 01 February 15, 2008
15
SYSTEM OVERVIEW – BLADE, T-FRAME & LIFT ASSEMBLIES
VEHICLE LIGHTING CHECK
1. Check the operation of vehicle
lights and then snowplow lights
with snowplow mounted to
vehicle and all harnesses
connected.
Turn signals and parking lamps
Parking lamps ON
• Both vehicle and snowplow
parking lamps should be ON at
the same time.
Driver-side turn signal ON
• Both vehicle and snowplow
driver-side turn signal lamps
should flash at the same time.
Passenger-side turn signal ON
• Both vehicle and snowplow
passenger-side turn signal
lamps should flash at the same
time.
Headlamps
Move vehicle headlamp switch to
the "ON" position. Connecting
and disconnecting the headlamp
harness plug should switch
between vehicle and snowplow
headlamps as follows:
Headlamp harness plug
DISCONNECTED
• Vehicle headlamps should be
ON.
• Snowplow headlamps should
be OFF.
Headlamp harness plug
CONNECTED
• Snowplow headlamps should
be ON.
• Vehicle headlamps should be
OFF.
Dimmer switch should dim
whichever headlamps are
operating. The high beam
indicator on the dash should light
when either set of headlamps is
on high beam.
Daytime Running Lamps (DRLs)
With headlamp switch OFF,
activate the DRLs.
Headlamp harness plug
DISCONNECTED
• Vehicle DRLs should be ON.
• Snowplow headlamps should be
OFF.
Headlamp harness plug
CONNECTED AND vehicle uses
the headlamp bulbs for DRLs:
• Snowplow headlamps should
be ON in DRL mode (with
reduced intensity compared to
high or low beam).
• Vehicle DRLs should be OFF.
Headlamp harness plug
CONNECTED AND vehicle uses
lamps other than the headlamp
bulbs for DRLs:
• Snowplow headlamps should
be ON in DRL mode (with
reduced intensity compared to
high or low beam).
• Vehicle DRLs should be ON.
• Vehicle headlamps should be
OFF.
Joystick Control or
CabCommand Control
The control indicator light should
light whenever the control
ON/OFF switch and the ignition
(key) switches are both in the
"ON" position. The snowplow
plugs do need to be connected to
the vehicle harness connectors.
2. Connect all snowplow and
vehicle harnesses. Raise the
snowplow and aim snowplow
headlamps according to the
Snowplow Headlamp Beam
Aiming instructions included with
the headlamps and any state or
local regulations.
3. Check aim of vehicle headlamps
with snowplow removed.
4. When the snowplow is removed
from the vehicle, install plug
covers on the vehicle battery
cable and lighting harness. Insert
the snowplow battery cable and
lighting harness into the cable
boot on the snowplow.
CAUTION
On 2-plug electrical systems,
plug covers shall be used
whenever snowplow is
disconnected. Vehicle Battery
Cable is 12-volt unfused source.
Excerpts taken from MVP PLUS™ Snowplow Installation Instructions (Lit. No. 44229, Rev. 05).
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