19
Lit. No. 62639 October 5, 2001
OPERATIONAL TEST AND ADJUSTMENTS
VEHICLE LIGHTING CHECK
1. Check the operation of vehicle and plow lights with
plow mounted to vehicle and all harnesses
connected.
Turn signals and parking lamps
Parking lamps ON
• Both vehicle and plow parking lamps should be
on at the same time.
Right turn signal ON
• Both vehicle and plow right turn signal lamps
should flash at the same time.
Left turn signal ON
• Both vehicle and plow left turn signal lamps
should flash at the same time.
Headlamps
Move vehicle headlamp switch to the ON position.
Connecting and disconnecting the 12-pin plow plug
from the vehicle harness connector should switch
between vehicle and plow headlamps as follows:
12-pin plow plug DISCONNECTED
• Vehicle headlamps should be on.
• Plow headlamps should be off.
12-pin plow plug CONNECTED
• Plow 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.
2. Connect plow plug to vehicle harness connector.
Raise plow and aim plow headlamps according to
SAE J599 Lighting Inspection Code (see Service
Bulletin SP 608) and any state or local
regulations.
3. Check aim of vehicle headlamps with plow removed.
4. When plow is removed from the vehicle, install plug
covers on vehicle harness connectors and insert the
plow plugs into the boot on the hydraulic unit.
After using the snowplow for 5-10 hours, retorque
all mount assembly fasteners.
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