Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, installation, operating,
inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual
near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and
the receipt in a safe and dry place for future reference.
ITEM 66187
250 LB. CAPACITY
TRUCK
LADDER RACK
Truck and ladder not included.
Visit our website at: http://www.harborfreight.com
REV 12b
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-800-444-3353 as soon as possible.
Copyright© 2008 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for installation and service may not be included.
Email our technical support at: tech@harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Specifications
Important Safety Information
Installation Precautions
Weight Capacity 250 lb.
Arm Width 19″-34″
Rack Height 53″
1. Follow DOT regulations regarding
installation and use.
2. Verify that installation surface has no hidden
utility lines before drilling or driving screws.
3. Install only according to these instructions.
Improper installation can create hazards.
4. Wear ANSI-approved safety goggles and
heavy-duty work gloves during installation.
Use Precautions
1. Do not exceed listed weight capacity,
distributed evenly. Be aware of dynamic loading!
Sudden load movement may briefly create
excess load causing product failure.
2. Strap ladder securely to rack.
3. When expanding the Arm (6), leave at
least 2.5″ of the tube in the Frame (1).
4. Use as intended only.
5. Keep installation area clean and well lit.
6. Keep bystanders out of the area during installation.
7. Do not install when tired or when under
the influence of drugs or medication.
8. Weight capacity and other product capabilities apply
to properly and completely installed product only.
5. Inspect before every use; do not use
if parts loose or damaged.
6. This product is not a toy. Do not allow
children to play with or near this item.
7. Maintain product labels and nameplates.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
Page 2 For technical questions, please call 1-800-444-3353. Item 66187
Installation
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
TO PREVENT SERIOUS INJURY DURING INSTALLATION:
Park truck in level, stable location well away from traffic.
Place transmission in park/neutral and set parking brake.
Note: For additional information regarding the parts listed in the following pages,
refer to Parts List and Diagram on page 7.
Blind Fasteners
Blind Fasteners will need to be installed
throughout these instructions.
To assemble Blind Fastener Installation Tool:
1. Slide Flat Washer (B) over Installation Bolt (A).
2. Place a box end wrench over
Unthreaded Installation Nut (C).
A
B
Note: The Unthreaded
Installation Nut (C) is
used only to hold the
Blind Fastener (H) in place
while the Installation Bolt (A)
locks it in place.
3. Place Installation Bolt through Unthreaded
Installation Nut, as shown.
To install a Blind Fastener:
1. WARNING! Verify that installation surface
has no hidden brake lines, wiring, or
other critical components before drilling.
Drill an 11 mm (0.433″) hole in the location
the Blind Fastener will be installed.
2. Thread the Blind Fastener (H) onto the Installation
Bolt (as part of installation tool) by hand until snug.
3. Insert Blind Fastener (as part of installation tool)
so that the flange rests on the lip of the hole.
C
Step 3
Turn this
Bolt
Step 2
H
Hold this
Wrench still
4. Hold wrench attached to Unthreaded Installation Nut
still* while turning Installation Bolt clockwise
with another wrench until Blind Fastener is held
securely in place. When finished, unthread
Installation Bolt from Blind Fastener.
* Holding this Wrench still helps prevent the
Blind Fastener from turning with the Installation Bolt.
REV 12b
Step 4
Page 3For technical questions, please call 1-800-444-3353.Item 66187
Front Rack Installation
Note: The Front Rack is near the truck cab.
1. Slide Front Mounting Bracket (2)
over Front Base (4) as shown above.
Temporarily secure in place with Jam Bolt (D).
2. Place the Base/Bracket assembly as shown below
at the passenger side of the vehicle near the cab.
Loosen the Jam Bolt and allow the Base to slide
down so the foot rests flat on the truck bed.
(Truck
Cab)
(Passenger
Side Bedrail)
(Front
Bedrail)
(Bed)
5.
Attach the assembly to the Blind Fasteners as
shown above using Bolts (E), Washers (F),
and Spring Washers (G) - as shown above.
3. Mark the bedrail at center of the holes,
3 holes in the side and 1 hole on the truck bed.
Any one of the 4 holes in the Base can be used
for the truck bed hole. Set the assembly aside.
4. Drill for and install 4 Blind Fasteners (H) in
the locations marked in the previous step.
6. Insert Arm (6) into Frame (1) and secure
with Jam Bolt (D), as shown above.
7. Attach Ladder Stop (7) to Frame (1) using Carriage
Bolt (M), Washer (N), and Nylon Insert Nut (P).
8. Install Strap (8) through the bracket on the Frame (1).
9. Slide the assembled Frame (1)
into the Front Base (4).
Page 4 For technical questions, please call 1-800-444-3353. Item 66187
Rear Rack Installation
1. Slide Rear Mounting Bracket (3)
over Rear Base (5) as shown above.
Temporarily secure in place with Jam Bolt (D).
2. Place the Base/Bracket assembly as shown below at
the passenger side of the vehicle near the tailgate.
Loosen the Jam Bolt and allow the Base to slide
down so the foot rests flat on the truck bed.
(Passenger
Side Bedrail)
(Bed)
5.
Attach the assembly to the Blind Fasteners as
shown above using Bolts (E), Washers (F),
and Spring Washers (G) - as shown above.
(Tailgate)
3. Mark the bedrail at center of the holes, 4
holes in the side and 1 hole on the truck bed.
Any one of the holes in the Base can be used for
the truck bed hole. Set the assembly aside.
4. Drill for and install 5 Blind Fasteners (H) in
the locations marked in the previous step.
After Installation
1. If desired, a Cleat (9) can be installed on each
Frame (1). Place the Cleat in the desired location
and mark the holes. Drill 1/4″ holes in the locations
shown and install the Cleats, using Screws (J),
Washers (K), and Nylon Insert Nuts (L).
6. Insert Arm (6) into Frame (1) and secure
with Jam Bolt (D), as shown above.
7. Install Strap (8) through the bracket on the Frame (1).
8. Slide the assembled Frame (1)
into the Rear Base (5).
2. Inspect and test vehicle systems thoroughly,
especially lighting and braking systems, to confirm
that they were not damaged during installation.
Page 5For technical questions, please call 1-800-444-3353.Item 66187
Operating Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
1. Measure the width of the ladder to be mounted
on top of the Ladder Rack and slide the
Arms (6) to fit the ladder allowing no more than
2″ of space between ladder and Ladder Rack.
Tighten the Jam Bolts (4) securely.
2. Lay the ladder on top of the Frames (1)
between the vertical arms and slide it forward
until it contacts the Ladder Stop (7).
3. Use the Straps (8) to wrap around ladder rungs
and securely hold the ladder in place using
hook and loop system attached to Straps.
Maintenance and Servicing
Procedures not specifically explained in this manual must
be performed only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM RACK FAILURE:
Do not use damaged equipment. If abnormal noise or vibration
occurs, have the problem corrected before further use.
1. BEFORE EACH USE, inspect the general
condition of the rack. Check for:
• loose hardware,
• misalignment or binding of moving parts,
• cracked or broken parts, and
• any other condition that may
affect its safe operation.
2. AFTER USE, wipe external surfaces
of the rack with clean cloth.
Page 6 For technical questions, please call 1-800-444-3353. Item 66187
Parts List and Diagram
Part Description Qty.
A Installation Bolt M8 x 55 (tool) 1
B Flat Washer Ø8 (tool) 1
C Unthreaded Installation Nut (tool) 1
D Jam Bolt 4
E Hex Bolt M8 x 30 9
F Flat Washer Ø8 9
G Spring Washer Ø8 9
H Blind Fastener 9
J Screw M5 x 70 4
K Flat Washer Ø5 4
L Nylon Insert Nut M5 4
M Carriage Bolt M10 x 80 1
N Flat Washer Ø10 1
P Nylon Insert Nut M10 1
D
A
Part Description Qty.
1 Frame 2
2 Front Mounting Bracket 1
3 Rear Mounting Bracket 1
4 Front Base 1
5 Rear Base 1
6 Arm 2
7 Ladder Stop 1
8 Strap 2
9 Cleat 2
Note: Some parts are listed and shown for
illustration purposes only, and are not available
individually as replacement parts.
M
E
J
F
B
C
G
H
K
N
L
P
1
4
2
5
9
8
3
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
6
7
Page 7For technical questions, please call 1-800-444-3353.Item 66187
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
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