CURTMFG.COM
•
NEED ASSISTANCE?
•
877.287.8634
•
48641-INS-RB
•
PAGE 1
INSTALLATION MANUAL
48641
Product Photo
Parts List
Item Qty Description
1
1
Channel-mount lunette ring
2
1
Channel-mount
3
1
Locking pin
4
6
Washer, 5/8"
5
3
Hex head bolt, 5/8"
6
3
Nylock nut, 5/8"
Level of Difficulty
Easy
WARNING
Never exceed the vehicle manufacturer's recommended towing capacity.
The mounting channel is to be welded to a structure of sufficient strength
to support the rated capacity of the lunette ring in accordance with SAE J847.
All welding must be performed by an AWS certified welder. It is the user's responsibility
to ensure the mounting structure is capable of supporting the rated capacity.
Do not modify this lunette ring in any way. Unauthorized modification may impair the
function and / or safety and could affect the life of the product and void the warranty.
Maintain adequate vertical down (tongue) load to have control of the
trailer (generally 10%), but do not exceed the specified rated capacities.
Trailers and equipment are designed for on-road towing within the stated capacities.
For off-road applications, reduce the capacities listed in the specifications table by 25%.
Keep safety chains in place and in working order. Never operate
the product without the safety chains attached to vehicle.
This product is rated for use in the rise position only as shown. Do not use in the drop position.
CAUTION
Check for damaged parts before each use. Carefully check that the product will operate
properly and perform its intended function. Replace damaged or worn parts immediately.
Never operate the product with a damaged part.
Maintenance
Inspect the unit for proper operation, and worn, damaged or missing parts.
Replace as required or when the unit's wear exceeds 1/8" from the original surface.
Check the hardware torque specification after the first
200 miles of towing and every 400 miles after that.
NOTICE
Before you begin installation, read all instructions thoroughly.
Proper tools will improve the quality of installation and reduce the time required.
To help prevent damage to the product or vehicle, refer to the specified
torque specifications when securing hardware during the installation process.
Weight Capacity
Gross trailer weight (GTW)
40,000 lbs.
Tools Required
Torque wrench
Ratchet
Socket, 15/16"
Wrench, 15/16"
Welding supplies
--
Product Registration
CURT Group stands behind our products
with industry-leading warranties. Provide
feedback and help us to improve our
products by registering your purchase at:
warranty.curtgroup.com/surveys
Torque Specifications
5/8" bolt
180 ft-lbs.
Use above torque setting unless otherwise noted
