B&W Trailer Hitches 1057R User Manual

Page 4

B&W Custom Truck Beds, Inc.

1057R 05 01 2014

STEP TWELVE - INSTALL SAFETY CHAIN U-BOLTS

To install the safety chain U-bolts it is necessary to drill four 1/2” holes

through the truck bed floor. Drill the holes from beneath the truck,

through the two holes located on each side and closest to the round

receiver tube in the center section. This will locate the safety chain

U-bolt in the lowest point of the floor corrugation. Drop a U-bolt through

each pair of holes from the topside of the truck bed floor. Place a spring

and lock nut on each of the four legs. Tighten the lock nuts until flush

with the bottom of the U-bolts.

STEP THIRTEEN- REPLACE THE EXHAUST BRACKET

Re-attach the exhaust to the hanger bracket and replace spare tire if removed during the installation.

Next install the side plates. The driver’s side is shown; the longer flange goes toward the

front of the truck and the single oval hole to the rear. Place the side plate over the side

plate studs that have been installed in the frame. Secure with a flat washer, lock washer,

and 1/2” nut. Hand tighten until the sideplate is against the frame and flat washer on the

stud assembly. Attach the front flange of the side plate to the front angle crossmember.

Place a 1/2” by 1 1/2” bolt with a flat washer though the flange and the front angle then

secure with a lock washer and nut. Next attach the sideplate to the rear bar by placing a

1/2” x1 1/2” bolt with a flat washer, and lock washer though the smaller side plate flange

and threading it into the threaded hole in the bar.

STEP NINE - SIDE PLATE CLAMP & U-BOLT INSTALLATION

Install the sideplate clamp on the driver’s side. The sideplate clamp has two studs welded on the legs that will

pass though the highest and lowest hole in the side plate. There is a notch cut in the top inner part of the clamp

that will allow clearance for the brake lines on the top of the frame. The small hole in

the clamp should be toward the bottom. Slide the sideplate clamp between the wiring

harness and the inside of the frame making sure the top part of the clamp goes over

the brake lines. Push the clamp outward placing the studs through the holes in the side

plate. Be careful not to damage brake lines or wires. The sideplate clamp will set at a

diagonal when installed correctly. Place a 1/2” lock washer and nut on the studs. The

passenger side plate will use a U-bolt in the front two holes. The U-bolt will fit around

the frame and will set vertically, not on a diagonal like the clamp. Place a lock washer

& nut on each of the threaded ends of the U-bolt once they have been installed through

the side plate holes.

STEP TEN – Tighten Hardware

It is very important to tighten hardware in the proper sequence. First check to insure that the hitch crossmem-

bers are spaced about the same from side to side on the frame. Then tighten the center section bolts to 80 ft.

lbs. Next tighten the sideplate clamp and the u-bolt alternating slowly between the top and bottom legs so they

are equally tightened to 40 ft. lbs. tighten the bolts holding the side plates to the front and rear hitch crossmem-

bers to 80 ft. lbs. then tighten the rear side plate studs to 80 ft. lbs.

STEP EIGHT - INSTALL SIDE PLATES

LATCH
PIN

TAB

IN−LINE

DRIVER SIDE

STEP ELEVEN – INSTALL LATCH PIN RELEASE HANDLE

WARNING: LATCH PIN WILL NOT FUNCTION PROPERLY IF HANDLE IS NOT INSTALLED CORRECTLY.

Install the latch pin release handle by inserting it through the slot

in the end of the center section on the driver’s side of the truck.

Align the handle eyelet with the square hole in the latch pin so the

handle is in line with the latch pin as shown. Secure the handle to

the pin with the 5/16 X 3/4” carriage bolt and 5/16” locking flange

nut as shown. Note: The included 5/16” cap screw can replace the

carriage bolt if wrench access on the “cab side” of the handle is

limited. Tighten the nut until it is secure. Do not over-tighten and

deform the handle eyelet.