B&W Trailer Hitches RVK3400 - Manual (Page 3)

FIGURE F1: View of Slider Base
and Coupler Head assembled.
With the flat side of the Pivot arm flat against the bolt
plate in the slider base, install four 1/2" x 1−1/2" bolts
and four 1/2" split lock washers for each arm. Torque
each bolt to 80 ft−lbs.
WARNING: B&W recommends that you check the
clearance between the truck cab and the trailer in both
the Towing position and the maneuvering position.
Compare the measurement taken from the center of
the Slider Coupler to the cab, to the measurement
taken from the center of the king pin to the farthest
forward corner point of the trailer. These
measurements will allow you to see how much
clearance you will have between the cab and the
trailer while towing and turning.
WARNING: B&W also recommends that you check
the clearance between the bed side and the underside
of the front of the trailer and to allow adequate
clearance for the pitch and roll of the trailer while
towing.
2.
INSTALL COUPLER
Lubricate the polyurethane bushings on top of pivot
arms with high grade lithium grease (available at your
local hardware/automotive store). Place the coupler
over the pivot arms. (The saddle handles should be
parallel with the Slider Base in the latched position.)
Place the saddle lock pins through the saddle, then
insert the hairpins through the holes in the end of the
saddle lock pins to secure the coupler to the pivot
arms, see figure F1
Locate the 1/4" cap screw and nut, along with the wire
tension spring and mounting clip. Pass the 1/4" cap
screw through the mounting clip and the wire spring
as shown in figure D1. Thread the 1/4" lock nut onto
the 1/4" cap screw. Tighten the lock nut just enough
that the spring will stay in place but will still be able to
rotate around the bolt if needed, see figure D2.
INSTALL LEVELING KIT
Locate the flange which will be closest to the truck cab
on the driver side pivot arm, see figure B3. The clip
should be placed so that when the springs coil is in the
line with the edge of the arm there will be 1/2" of
clearance between the bottom of the rubber bumper
and the top of the spring, see figure B4. Drive the clip
securely onto the flange with a hammer.
1.
2.
INSTALL COUPLER HANDLE
Locate the two 3/8" x 1−1/4" button head cap screws
and the two 3/8" flanged lock nuts provided in a bolt
bag. Pull out the coupler arm and pin it with the
safety locking pin near the base of the arm as shown
in figure E1.
CAUTION: Pulling the arm out away from the coupler
creates a pinch point. Use caution when installing the
handle to avoid injury.
Using the button cap screws and the lock nuts attach
the coupler handle to the arm and tighten, see figure
E1. Pull out the coupler cam handle safety pin. 1.
Adjust the resting angle of
your coupler plate by rotating
the spring on the driver side
pivot arm. Pulling the top of
the spring away from the cab
will increase the angle of the
coupler plate. Set the angle
of the coupler so that head
will tilt away from the cab
when coupling, see figure F2. Tighten the 1/4" nut
once the spring’s orientation is set. 2.
FIGURE D2:
Assembled leveling kit.
FIGURE D1:
Leveling kit parts.
FIGURE D4: Driver
side pivot arm.
FIGURE D3: Base view.
FIGURE E1: View looking down at side of coupler head.
FIGURE F2: Cutaway view of
driver side pivot arm and saddle.
CENTER OF
COUPLER
TO CAB
PIVOT ARM
KINGPIN TO EDGE OF TRAILER
WIRE
SPRING
1/4" LOCK NUT
MOUNTING
CLIP
1/2" DRIVER SIDE
PIVOT ARM
CAB
3/8" BUTTON HEAD
CAP SCREWS
COUPLER
HANDLE
COUPLER CAM
HANDLE SAFETY PIN
COUPLER
ARM
3/8" LOCKING
FLANGE NUTS
COUPLER
COUPLER JAWS
COUPLER CAM
HANDLE SAFETY PIN
SADDLE HANDLE
COUPLER CAM HANDLE
SADDLE LOCK PINS