B&W Trailer Hitches Turnoverball Model 1257 (Toyota) - Manual (Page 2)

Model 1257R
Copyright 2013
B&W Trailer Hitches
ALL RIGHTS RESERVED 1257R 11 15 2013
www.turnoverball.com
Call or Email us for Installation Support
800.248.6564
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Turnoverball TM Gooseneck Hitch Installation Instructions
Parts List
1 - Crossmembers
2 - Crossmember Brace
3 - Center Section
4 - Driver’s Side Sideplate
5 - Passenger’s Side Sideplate
6 - Safety Chain U-Bolts
7 - Latch Pin Handle
8 - 2-5/16” Ball
9 - Springs
10 - 1/2” Lock nuts
B&W Trailer Hitches
1216 Hawaii Road / PO Box 186
Humboldt, KS 66748
P:620.473.3664
F:620.473.3766
Hardware Kit
4 ea. - 5/8” cap screws
4 ea. - 5/8” finish nuts
4 ea. - 5/8” flat washers
4 ea. - 5/8” lock washers
12 ea. - 1/2” carriage bolts
12 ea. - 1/2” finish nuts
12 ea. - 1/2” lock washers
12 ea. - 1/2” flat washers
1 ea. - 5/16” carriage bolt
1 ea. - 5/16” flange nut
STEP 8 – Reinstall Components
Re-attach the fuel pump control to the driver’s side frame that was
removed earlier. (If air springs are being used move the relay to the
inside of the side plate and mount in the holes supplied). Using the
relocation bracket, 5/16” carriage bolt and 5/16” flange nut sup-
plied, reattach the wiring bracket to the fuel canister. (See diagram
at right)
Some trucks may need the exhaust pipe lowered slightly. If the tail
pipe has less than 1/4” clearance between it and the hitch use the
lowering bracket that is supplied in the kit. Slide it through the lower slot in the rubber hanger and turn
downward. This will allow the tube on the tailpipe to slide through the bracket and lower the pipe slightly
to give clearance for the hitch. (See diagrams below)
STEP 6 - Tighten Hardware
Make sure that the hitch crossmembers are spaced equally from side-to-side and front to rear. Make sure
the center section is tight against the under side of the truck bed and tighten the eight 1/2” carriage bolts
holding the center section to the crossmembers to 80 ft. lbs. Next tighten the four 1/2” carriage bolts
holding the crossmembers to the side plates to 80 ft. lbs. Make sure that the frame spacers are completely
into the oval holes in the frame and tighten the four 5/8” bolts holding the sideplates to the frame, torque
to 100 ft. lbs.
STEP 10 - Re-engage Latch Pin Handle
Retract the latch pin by pulling the handle all the way out until it stops and then rotate it clockwise. Place
the 2-5/16” ball in the hitch receiver. Engage the latch pin by rotating the handle counterclockwise. Be
certain the latch pin passes through the holes in the 2-5/16” ball and fully engages through the hitch re-
ceiver. Remove and grease the square base of the 2-5/16” ball.
STEP 9 – Install Safety Chain U-Bolts
To install the safety chain U-bolts it is necessary to drill four ½” 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. After you drill the four holes clean the burrs from around the holes in the top of the bed then
drop a U-bolt through each pair of holes. Place a spring and lock nut on each of the four legs. Tighten the
nuts until flush with the bottom of the U-bolts.
Safety Chain Kit
2 ea. - 1/2” U-bolts
4 ea. - 1/2” lock nuts
4 ea. - springs
1 ea. - 3/8”x3/4” Bolt
1 ea. - 3/8” Lock nut
Toyota Tundra (2007 - 2014)
NOTICE: The 2-5/16 Ball cannot be turned over and stored
in the socket of this hitch.
NOTICE: At this time no accessories, including the model
RVK3000 RV Companion 5th wheel hitch and the RVK3400
slider, will work with this model of turnoverball™ except:
• 4” Toyota Hitch Extender (part# 4585)
• RV Companion 5th wheel hitch (model RVK3500),
with special socket post.
STEP 7 – INSTALL LATCH PIN RELEASE HANDLE
WARNING: LATCH PIN WILL NOT FUNCTION PROPERLY IF HANDLE IS NOT INSTALLED CORRECTLY.
Install the latch pin handle from inside the center
section. Insert handle through the oval hole on the
driver’s side and between the bed and frame, as
shown. Make sure that square tab welded on the
latch pin is facing to the rear of the truck. Place the
loop at the end on the handle on the top of the tab.
Install the 3/8” x 3/4” bolt through the loop then
through the tab. Secure with the 3/8” lock nut. (See
diagram at right).
NOTE: We recommend reading instructions before beginning the installation.
WARNING: The tow vehicle’s towing capacities should under NO circumstances be exceeded.