MODEL 2511, 2521 EZ-GLIDE™SYSTEM
FORD, DODGE, GM ACCESSORY CROSS MEMBER
FULL SIZE VAN GUTTER CLAMP
–ATTENTION–
Read and understand all instructions and warnings before operating or using this product.
WARNING
This product is only intended and only safe for transporting ladders. It is the responsibility of the user to secure these
materials to the rack before transporting.
Ladders must be secured per ANSI standard A142.2-1990 paragraph 8.4.4. Ladder damage will occur from road shock
and vehicle vibration if the ladder is not properly secured to the ladder rack. Bouncing and side to side motion of an
improperly secured ladder will cause wear and weaken the ladder. Using a damaged ladder could lead to structural collapse resulting in serious injury or death. Place ladder in a raised position before transporting. Driving with rack in lowered
position may cause serious injury or damage to vehicle, ladder, rack or persons.
–NOTICE–
Any modification or unintended use of this product shall immediately void all manufacturers warranties. Manufacturer disclaims all liability for injuries to persons or property resulting from any modification to, or unintended use of this product.
CAUTION
Never load your rack to exceed the safe capacity of your vehicle. Heavy loads when carried high can dangerously alter the
center of gravity.
Loads should be approximately centered front to rear. Failure to do this will cause damage to the vehicle roof. Long loads
that extend out the rear of the vehicle will prevent the rear hatch from fully opening and cause damage if attempted.
ASSEMBLY INSTRUCTIONS
TOOLS REQUIRED
• Open or Box End Wrenches
1/2" - 7/16"
• 3/8" Drive Sockets
1/2" - 7/16"
• 3/8" Drive Ratchet
• Phillips Screwdriver (Large)
PARTS LIST
See Page 2
• Cross Member
• 2 - Mounting Bases
• 2 - End Stops
• 2 - Gussets
30 min. per unit (1/2 hr.) depending on van equipment and installer experience.
Read these instructions and warnings completely before installation.
Check these kits to be sure the following parts are included.
Approximate assembly and Installation time:
IMPORTANT BEFORE YOU BEGIN
HARDWARE KIT
See Page 2
1 GUTTERED HARDWARE KIT:
8 5/16-18 x 2-3/4" Hex Hd. Bolt
2 5/16-18 x 1-1/2" Carriage Bolt (Model 2511 Ford Only)
2 5/16-18 x 2” Carriage Bolt (Model 2521GM Only)
2 5/16-18 x 1" Phillips Flat Head
2 1/4-20 x 2" Bent Bolt
12 5/16-18 Nylon Lock Nut
2 1/4-20 Nylon Lock Nut
20 5/16" Flat Washer
4 1/4" Flat Washer
2 Vinyl Tube
2 Clamps (stainless steel)
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Part No. 24-0106 REV. D ECN 5315 05/13
5/16-18 x 2-3/4" Hex Hd. Bolt
5/16-18 Nylon Lock Nut
5/16" Flat Washer
1/4" Flat Washer
5/16-18 x 1-1/2" Carriage Bolt
1/4-20 Nylon Lock Nut
1/4-20 x 2" Bent Bolt
5/16-18 x 1 Phillips Flat Head
FASTENER CHART
5/16-18 x 2" Carriage Bolt
Cross-Member
Qty. 1
Mounting Bases
Qty. 2
End Stops
Qty. 2
Gussets
Qty. 2
Clamps (stainless steel)
Qty. 2
Vinyl Tubes
Qty. 2
2
STEP 2 (2 places)
If you are placing this Cross-Member on
a vehicle with an existing EZ-GLIDE™
Rotation System, you will not use the
End Stop (A) on the rotation side.
Attach End Stop (A) to Cross-Member (B)
with 5/16-18 x 2-3/4" Fasteners.
(B)
(A)
(2) 5/16-18 x 2-3/4"
Hex Hd. Bolt
(4) 5/16-18 Flat
Washer
(2) 5/16-18 Nylon
Lock Nut
STEP 3 (2 places)
Attach Mounting Base with Gusset and Clamp
(A) to Cross-Member (B) with 5/16-18 x 2-3/4"
Fasteners.
(A)
(2) 5/16-18 x 2-3/4"
Hex Hd. Bolt
(4) 5/16-18 Flat
Washer
(2) 5/16-18 Nylon
Lock Nut
(B)
NOTE: To allow for final
fit-up, do not tighten
these fasteners at this
time.
5/16-18 x 1" Phillips
Flat Hd. Screw
STEP 1 (2 places)
Attach Mounting Base (A) to Gusset (B) and Clamp (C) with
fastener shown. Tighten only the 5/16-18 x 1" Phillips Screw,
leave all other fasteners loose for easer mounting on vehicle.
(A)
(B)
5/16-18 Flat
Washer
(2) 5/16-18
Nylon Lock Nut
(C)
1/4-20 x 2"
Bent Bolt
(2) 1/4-20
Flat Washer
1/4-20 Nylon
Lock Nut
5/16-18 x 1-1/2" Carr. Bolt for Model 2511 (Ford)
5/16-18 x 2" Carr. Bolt for Model 2521 (GM)
3
STEP 4 (2 places)
Place assembled Cross-Member on top of
vehicle. Install the Vinyl Tubes (A) on vehicle
gutters (centered on the Mounting Bases).
(A)
STEP 5
First snug the carriage bolts (A) and then
tighten the bent bolts (B). Fully tighten the
carriage bolts last.
(A) 1-1/2" Long
Carriage Bolt
(B)
NOTE: Tighten all
loose fasteners at this
time.
NOTE:
Gutter clamp not
shown for clarity
MODEL 252
GM APPLICATION
If installing a Model 2521 on a Chevy or GMC van, the mounting
base must contact the van roof as shown below. Due to excess
body caulk in some gutters on GM vans, it may be neccessary to
cut a portion of the caulk out and then re-caulk after installation is
complete.
(A) 2" Long
Carriage Bolt
(B)
MODEL 251
FORD APPLICATION
NOTE: At the end of the first week
of use, check all fasteners for proper
tightness and then every three
months thereafter.
4
FINAL ASSEMBLY
5
REPLACEMENT PARTS
NO REPLACEMENT PARTS AVAILABLE FOR THIS MODEL
This LIMITED WARRANTY is made by Knaack LLC, 420 E. Terra Cotta Ave., Crystal Lake, Illinois to the original retail purchaser of KNAACK® or WEATHER
GUARD® products.
KNAACK LLC WARRANTS THAT KNAACK OR WEATHER GUARD PRODUCTS WILL BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP FOR A
PERIOD OF TWO (2) YEARS FROM DATE OF PURCHASE BY THE ORIGINAL RETAIL PURCHASER.
If, before the expiration of the Warranty period, purchaser discovers that the KNAACK or WEATHER GUARD product fails to fulfill the Warranty, purchaser shall contact
Knaack LLC to make arrangements for an inspection of the product. If Knaack LLC determines a defect exists, Knaack
replace any defective part. All Warranty repairs shall be made by an authorized KNAACK Product dealer or Knaack LLC approved service company.
This Warranty shall not apply if the KNAACK or WEATHER GUARD product has been subjected to misuse, abnormal service or handling, improper maintenance, or
alterations made by anyone other than a KNAACK or WEATHER GUARD Product dealer or a Knaack LLC approved service company.
THE WARRANTY PRINTED ABOVE IS THE ONLY WARRANTY APPLICABLE TO THIS PURCHASE. ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED.
KNAACK LLC SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF ANY BREACH OF THIS WARRANTY. NOR
SHALL THE DAMAGES EXCEED THE RETURN AMOUNT OF THE PURCHASE PRICE PAID BY THE ORIGINAL PURCHASER.
This Warranty is in lieu of all Warranties express or implied. The terms of this Warranty shall not be modified by any party, their successors or assigns. This Warranty
gives you specific legal rights, and you may also have other rights which vary from state to state.
LIMITED WARRANTY
LLC shall, at its option and expense, repair or
Product fits based on vehicle design available at the revision date. Vehicle manufacturers may change specs after the revision date, so if
you have a vehicle produced with a model year date after the revision date, please contact your distributor or Knaack LLC to verify fit-ting
of product to vehicle.
If you have any questions, please call our customer service department at 1-800-456-7865. WEATHER GUARD Products are protected by
one or more of the following patents: U.S. 5145087, 5308126, 4509787, 4573731, 4618083, D-346355, D-346994, D-353574; Canada
1218968, 1224230, 1235100 and; U.K. 2233036. Other patents pending.
420 E. Terra Cotta Ave, Crystal Lake, IL 60014, 815-459-6020, info@knaack.com
KNAACK LLC
©2002 Knaack LLC
6
Part No. 24-0106 REV. D ECN 5315 05/13
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