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Installation Guide
Pro II Service Body Rack
Holman
Rancho Cordova, CA 95742
800-343-7486
InstallationSupport@Holman.com
20230512R8
DATE: __________________

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Summary of Contents for Holman Pro II Service Body Rack

  • Page 1 Installation Guide Pro II Service Body Rack Holman Rancho Cordova, CA 95742 800-343-7486 InstallationSupport@Holman.com 20230512R8 DATE: __________________...
  • Page 2 Always check for wires, fuel tanks and lines, brake lines and other important vehicle functionality items prior to drilling and installing all products. Too much weight will greatly reduce the stability of your vehicle. Holman makes no representation or warranty as to the amount of weight your vehicle can safely carry.
  • Page 3 Instructions – PRO II Service Body 5. Standard mounting is on the rear panel. Check to ensure the rear panel of the service body is free of taillights or other obstructions (Inside or out) in the area where the rear legs of the rack bolt to the body.
  • Page 4 Instructions – PRO II Service Body For Technical Support Call: 800-343-7486, Monday-Friday, 7AM - 4 PM (PST) Page 3...
  • Page 5: Table Of Contents

    Instructions – PRO II Service Body Table of Contents Tools Needed ..........................4 Parts List ............................5 Assembly Hardware Kit ........................7 Sealant Application ........................10 Step 1 – Join Side Channels ......................10 Step 2 – Attach Front Tube ......................11 Step 3 –...
  • Page 6: Parts List

    Instructions – PRO II Service Body Parts List For Technical Support Call: 800-343-7486, Monday-Friday, 7AM - 4 PM (PST) Page 5...
  • Page 7 Instructions – PRO II Service Body Parts List (Continued) For Technical Support Call: 800-343-7486, Monday-Friday, 7AM - 4 PM (PST) Page 6...
  • Page 8: Assembly Hardware Kit

    Instructions – PRO II Service Body Assembly Hardware Kit For Technical Support Call: 800-343-7486, Monday-Friday, 7AM - 4 PM (PST) Page 7...
  • Page 9 Instructions – PRO II Service Body Assembly Hardware Kit (Continued) NOT TO SCALE. NOT TO SCALE. For Technical Support Call: 800-343-7486, Monday-Friday, 7AM - 4 PM (PST) Page 8...
  • Page 10 Instructions – PRO II Service Body PRO II TRUCK RACK EXPLODED VIEW For Technical Support Call: 800-343-7486, Monday-Friday, 7AM - 4 PM (PST) Page 9...
  • Page 11: Sealant Application

    Instructions – PRO II Service Body Sealant Application Proper sealant application is critical to preventing water penetration inside the rack.  Apply a healthy bead of sealant around every swaged joint as shown. Improper sealing can lead to water penetration and rust on inside surfaces.
  • Page 12: Step 2 - Attach Front Tube

    Instructions – PRO II Service Body Step 2 – Attach Front Tube  Apply sealant to front side-channel swaged joint.  Insert front side-channel swaged joint into front tube until bolt holes in tube and side-channel align.  Loosely fasten front tube to side channel using 1/2”...
  • Page 13: Step 5 - Attach Rear Legs

    Instructions – PRO II Service Body  Be sure to read the Before You Begin section before installing front legs.  Based upon height of cab and clearance required, insert telescoping leg into leg assembly and then insert 1/2” x 3-1/4” bolt into holes through leg assembly. ...
  • Page 14: Step 6 - Install Foot To Rack

    Instructions – PRO II Service Body Step 6 – Install Foot to Rack Depending on the model of service body the rack is installed on, it may be necessary to install the rear feet pointed inwards instead of the typical rear foot installation pointed outwards. FEET DIRECTED OUTSIDE FEET DIRECTED INSIDE Also depending on the model of service body the rack is installed on, it may be necessary to install...
  • Page 15: Step 7 - Attach Rear Crossbar

    Instructions – PRO II Service Body Step 7 – Attach Rear Crossbar  Apply sealant around black cap fastening flanges.  Using a mallet or dead blow hammer, tap black cap into rear crossbar tubing on the side opposite the gusset welded to the rear crossbar.
  • Page 16: Step 9 - Bulkhead Bracing Installation

    Instructions – PRO II Service Body  Remove front leg angle mount.  Using a 13/32” drill bit, drill a hole in the top of the bulkhead where marked. Be sure drilling location is clear of wires, fuel tanks and lines, brake lines and other important vehicle functionality items.
  • Page 17: Step 10 - Rear Foot To Service Body Installation

    Instructions – PRO II Service Body  Apply sealant around holes drilled into side box.  Attach the corner support to the service body using one 5/16” bolt, two 5/16” washers, and one 5/16” lock nut for each hole drilled. ...
  • Page 18: Step 11 - Support Arm Installation

    Instructions – PRO II Service Body  Position rack with rear feet against rear of service body.  Position rear feet as far from vehicle center and as close to vertical exterior corner of the rear body panel as possible. Be sure clearance is available inside rear panel of service for 3/8”...
  • Page 19: Step 12 - Rack Installation

    Instructions – PRO II Service Body  Using one 3/8” button head screw, two 3/8” washers, and one 3/8” lock nut, loosely attach support arm to service body side panel.  Snug tighten but allow for movement.  Repeat for opposite side. Step 12 –...

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