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Attach Head to Shank

Level the Trailer:

Measure to the ground at the FRONT and BACK of the trailer frame, and adjust the trailer to be parallel to the ground (both FRONT and BACK measurements should be the same).

With the trailer parallel to the ground, measure from the ground to the top of the trailer coupler. The hitch ball should initially be placed as close to this height as possible. See Figure 1.

Eq 4 K Owners Manual Web Images 2017 Fig1

Attach Head to Shank:

Insert the adjustable shank into the receiver on the tow vehicle and secure it with hitch pin and clip.

Insert the spacer rivet with washers into the back of the hitch head to pre-load the angle of the hitch head. Start with 5 spacer washers for most setups. If your actual tongue weight is higher than 90% of the hitch’s max tongue weight rating (e.g. TW > 1,080 lb. on a 12K hitch), you may want to start with 6 spacer washers or more as the tongue weight approaches the maximum hitch rating. Some setups with lighter tongue weights may only need 4 washers.

Slide the bolt channel around the shank and hold the hitch head so that the top of the hitch ball measures from the ground as closely as possible to the coupler height.

Observe where the top slot in the bolt channel aligns with the holes in the shank. See Figures 2a - 2b. If you can see any part of the shank hole that is lower than the bolt channel slot, drop the head down to align these holes for the initial setup. See Figure 2a.

If you cannot see the lower hole in the shank, raise the hitch head so that the top slot aligns with the shank hole slightly above it, and use this hole for the initial setup. See Figure 2b.

Eq Owners Manual Web Images 2017 Fig2A
Eq Owners Manual Web Images 2017 Fig2B

In some cases, the shank may need to be turned upward, or a specialty length shank may be needed so that the ball can be placed at the correct height. See Figure 3.

Eq 6 K Owners Manual Web Images 2017 Fig3

Insert a 3/4” shank bolt with a flat washer through the top slot in the bolt channel and shank hole to hold the head at the correct height. Slide the flat washer, split (lock) washer, then nut onto the other side of the bolt, and finger tighten them. Then repeat this process for the bottom shank bolt. See Figure 4.

Use a wrench to tighten the angle set bolt until it comes into contact with the shank and lifts the head to where the spacer rivet also comes into solid contact with the shank. Tighten the angle set bolt an additional 1/2 turn. The hitch head should be angled down slightly. See Figure 5.

Eq 4 K Owners Manual Web Images 2017 Fig4
Eq 4 K Owners Manual Web Images 2017 Fig5