Western UltraMount MIDWEIGHT Installation Instructions Manual page 5

LIFT FRAME TO A‑FRAME ASSEMBLY
1. Set aside the blade guides and parts bags. The
vehicle electrical harnesses and Owner's Manual
packet are in the bag with the headlamp box.
2. Remove the packaging hardware securing the
lift frame to the A-frame, except for the clevis pins
and the shipping brackets.
3. Remove the fasteners and blocking securing the
A-frame to the pallet.
4. While supporting the lift frame, remove the clevis
pins and discard the shipping brackets.
Pivot Plate Configuration
IMPORTANT! Before assembling the lift frame to the
A-frame, pivot plate orientation and pivot hole position
must be determined using the following procedure.
(If the truck is unavailable, use configuration 2.
Adjustments can be made later.)
Before measuring the vehicle mount height, the
vehicle mount and receiver brackets must be installed,
ballast must be installed, if required, and the vehicle
must be parked on a level surface.
1. Measure the distance "d" from the ground to the
top edge of the receiver bracket. Measure both
sides and determine average value for "d".
Top edge of
receiver
d
Lit. No. 49583, Rev. 02
INSTALLATION INSTRUCTIONS
5
2. Use dimension "d" from Step 1 and the following
chart to determine the proper pivot plate mounting
position and pivot hole selection.
Pivot Plate Configuration Chart
Dimension "d" Configuration
13.0" – 14.5"
14.5" – 16.0"
16.0" – 17.5"
17.5" – 19.0"
3. The two pivot plates, A and B, are mirror images
of each other. They may be turned over and
switched from one side of the lift frame to the
other to provide two different mounting positions.
Configuration 2
Configuration 4
In each pivot plate mounting position, the pivot bar
pins may be installed through either of the lower
holes in the pivot plates, providing four different
height adjustment positions. The pivot bar pins
are never installed in either of the two upper
holes in the pivot plates.
Stacking Stop
1 No
2 No
3 Yes
4 Yes
Configuration 3
Configuration 1
June 1, 2016