Pro Series 49570 ROUND BAR WD User Manual

Page 3

49568IN 15946 REV G

7. Lower jack. Re-measure front wheel well reference point. The front wheel well height should be equal to or lower than the

original measurement. If the front wheel well height is higher than originally measured, reduce the number of links between the

yoke hook and spring bar (4 links min.) and recheck the wheel well measurement. If the front wheel well is lower than

originally measured, increase the number of chain links between the yoke hook and spring bar and recheck the wheel well

measurement. If the original wheel well height is not achievable, it is preferred that the wheel well height is lower after the spring

bars are loaded. If there are no more chain links for adjustment, the head assembly must be tilted forward. The trailer mus t be

uncoupled and the upper bolt removed from the head assembly. The head is then pivoted up as appropriate. Reassemble and

recheck the wheel well height.

LUBRICATION
1. Place several drops of oil at spring bar / ballmount contact points each day of use. Excess oil, dirt, and grit should be wiped out
whenever trailer is uncoupled.

SURGE BRAKES

Some surge brakes will not work with weight distributing hitches. CHECK TRAILER AND/OR SURGE BRAKE OPERATING

INSTRUCTIONS FOR ANY SPECIAL REQUIREMENTS REGARDING WEIGHT DISTRIBUTING HITCHES. Do not use sway

control with surge brakes.

Fig. 3

SNAP UP HANDLE

Fig. 4

PLACE CLOSEST
LINK ON HOOK

3. Using tongue jack, lower coupler onto ball and close coupler latch.

4. Insert round end of spring bar into lower socket of the ballmount and push upward. Line up notch in spring bar with the tab
in the upper socket, and push up until seated. Rotate the spring bar so that it is in line with the trailer frame to lock it into place
(The spring bars will fit on either side, as they are not made right or left handed). Repeat procedure for the other bar.

NOTE: To release spring bar, lift up on bar and rotate so that the notch in the spring bar and the tab in the upper socket are in
line, and allow bar to drop out of the ballmount.

5. Position the snap up brackets on trailer "A" frame so that the chain on the end of the spring bar is approximately vertical. Turn
1/2 X 3-1/2 bolt until it contacts frame. Then tighten 1/4 turn with wrench. DO NOT OVERTIGHTEN.

6. Raise trailer tongue and rear of vehicle with the tongue jack. Lower yoke of snap up bracket until it is parallel with the ground,
and slip the closest link over the hook (If there are less than 4 links between hook and u-bolt adjust ballmount angle rearward,
and repeat procedure -

see Fig. 3 & 4 below). With the snap up bracket handle over the yoke, raise until yoke has passed “over-

center”. Slide the safety pin through the small hole to lock the yoke in place. Repeat for other side.