Cequent Bulldog Collar-Lok Instructions

Read, Understand, Follow and Save These Instructions
Read, understand and follow all of these instructions and warnings (Instructions) before installing and using this product. Install and use this product
only as specified in these instructions. Improper installation or use of this product may result in property damage, serious injury, and/or death.
Never allow installation or use of this product by anyone without providing them with these instructions. You must read, understand and follow all
instructions and warnings for any product(s) to which this product is used in conjunction with or installed. Save these instructions with the product
for use as a reference for any future installation and use of the product.
WARNING
• Purchaser/owner must ensure that product is installed according to these
instructions.
• Purchaser/owner must not alter or modify product.
Operator and bystanders should never position any part of body under

any portion of this product or the load being supported.
Do not allow children to play on or around this product or the load being

supported.
• Weigh your trailer plus added load. Do not exceed lesser of mounting
bracket, coupler, hitch, vehicle, ball, or trailer weight ratings (including load).
• Never exceed maximum rated capacity. Refer to stamped markings or
decals on product to obtain rated capacity. If uncertain, contact Cequent
Performance Products at 1-800-632-3290 or www.cequentgroup.com
• Use only the proper ball for this coupler as indicated on the coupler body.
If uncertain, contact Cequent Performance Products at 1-800-632-3290
or www.cequentgroup.com
• Always secure load, vehicle and trailer (by blocking wheels) before
latching/unlatching coupler.
• Use caution when uncoupling as tongue may rise suddenly due to
negative tongue load.
• After installing channel and/or coupler, if coupler operation has been
impared in any way, do not use it.
Coupler Installation
Before mounting the coupler confirm that there will be no interference from the tow vehicle, tongue, ground, and any other mounted accessories
while stationary or in motion. Before installing, check for interference in open and closed positions. Check for interference again after installation
is complete. All welding must be performed by an AWS certified welder. The coupler must be rigidly attached to the trailer in order for the cou-
pler to support its maximum rated load according to SAE J684. After installation, check to make sure that coupler operation has not been impaired
in any way. Do not use coupler if its operation has been impaired.
Weld-on Instructions:
All welding must be performed by an AWS certified welder.

• Assure the coupler internal stop is butted against the end of the trailer tongue for maximum overlap.
• If using a weld-on coupler, weld 3/16" around the interface between coupler and tongue. See illustrations below. No undercut or washout
while welding.
2B, 4B and 5B Models
Minimum Tongue Overlap - 8.5"
Bolt-on Instructions:
• Assure that the coupler internal stop is butted against the end of trailer tongue for maximum overlap before securing.
• Torque grade 5 bolts with locknuts to appropriate SAE proof load specifications (See table specs). No deformation of
trailer tongue end allowed.
• The number and size of fasteners required must be specified by the trailer manufacturer.
Minimum Tongue Overlap - 8.5"
Keep ball pocket and mechanism clean. The
following procedures should be performed at least
annually:
Check welds and mounting bolt torque.

• Grease ball pocket.
• Oil pivot points with SAE 30 wt. motor oil.
• Inspect retaining pins and replace if necessary.
Bulldog Collar-Lok
®
Failure to follow these warnings and instructions may result in
property damage, serious bodily injury, and/or death.
Minimum Tongue Overlap - 7"
Retaining Pin
Minimum Tongue Overlap - 7"
Maintenance
Oil
Couplers
™
• Keep the ball pocket and mechanism clean. When parking or storing
your trailer, keep the coupler off the ground so dirt and/or other foreign
material will not build up in the coupler ball pocket.
• Do not tow if ball is not fully seated and/or coupler is not closed.
• All welding must be performed by a AWS certified welder.
• This product rated according to SAE J684.
Before Towing:
• Check vehicle, channel, hitch, hitch ball and coupler for signs of wear
or damage and that the coupler handle opens and closes freely. If coupler
and/or channel is deformed or damaged, replace complete coupler and
bracket.
• Always replace bent, broken, or worn parts before using this product.
• Check that the hitch ball is fully seated in the coupler ball pocket, close
coupler and insert pin behind the collar or through the latch.
• Check channel hardware for wear and proper tightness. Replace bent,
broken, or worn hardware. Tighten hardware to appropriate SAE
proofload specifications (See table specs). Use only grade 5 hardware.
• Make sure that the trailer safety chains are properly connected to the
towing vehicle and trailer according to SAE J684.
• Make sure that all trailer lighting is hooked up and working properly.
Warning: Failure to follow all installation instructions could
result in coupler failure.
Minimum Tongue Overlap - 2.5"
(Tongue may fit over or into coupler)
Oil
Printed in Mexico
3B Model
Minimum Tongue Overlap - 6.5"
Torque Specs
Ø 3/8" - 23 ft.lbs.
Ø 1/2" - 55 ft. lbs.
Ø 5/8" - 110 ft. lbs.
3.0" Channel
(Not included)
Supplied
Hardware
Oil
Grease
(Ball Pocket)
F3290 (Rev E-4718) 1/15