11921  Slauson Ave.    Santa  Fe  Springs,  CA.    90670    (800)  227-4116    FAX  (888)  771-7713
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PAGE DESCRIPTION OF CHANGE
COVER Updated cover image, REV. and date of release. 
Illustrations changed to new design.
7, 8
Added Note to cover Liftgate with a welding blanket and cut jig 
installation channels to avoid interference with vehicle prior to installation. 
Removed unnecessary part numbers for installation jig.
9-13
Updated parts tables for installation parts, parts boxes, and electrical as-
sembly kits.
14-40
Reorganized VEHICLE REQUIREMENTS, INSTALLATION GUIDELINES  
and INSTALLATION instructions according to installation on trailers or 
trucks. Renumbered installation steps throughout the manual.
31 Added WARNING & instruction to cover Liftgate with a welding blanket.
24, 44-44
Added Note to remove galvanized material before welding galvanized
steel.
35
Added instruction to cut a spacer to align mounting gussets mounted on 
long sill for truck installation.
44-46 Updated instructions to weld J-box to vehicle frame. 
44-49
Updated procedure for attaching control switches to vehicle body/under-
body and connecting electrical cables to the J-box.
49
Changed procedures for running power cable and connecting power to 
the redesigned J-box.
51-52
Updated procedure for connecting power (+) and ground (-) cables to J-
box.
51, 53
Added instructions for preventing corrosion on external electrical connec-
tions, including battery cables.
54-56 Inserted procedure to attach stow light on front of trailer.
57-61
Updated platform adjustment procedure based on new design adjustment 
bolts and slider stops.
65 Identifi ed snaphook and loop in the safety chain instructions.
68 Updated QR code decal, P/N 299349-04.
70-71 Updated pump and motor solenoid operation for single and dual pumps.
72 Updated gravity down hydraulic schematic.
73 Updated power down hydraulic schematic. 
74-75 Updated electrical schematic for 12V, gravity down with MAX ECU.
76-77 Updated electrical schematic for 12V, power down with MAX ECU.
78-79 Updated electrical schematic for 12V/24V, gravity down.
80-81 Updated electrical schematic for 12V/24V, power down.
82 Updated Table of Options.
83 Updated Electrical Inspection on PRE-DELIVERY INSPECTION FORM.
SUMMARY OF CHANGES: M-18-08, REVISION B