B&W Trailer Hitches RVK3500 - Manual (Page 4)

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 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 diagram G1.
INSTALL COUPLER
INSTALL LEVELING KIT
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 E1. 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 E2.
Locate the flange which will be closest to the truck cab
on the driver side pivot arm, see figure E3. 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 E4. Drive the clip
securely onto the flange with a hammer.
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 F1.
CAUTION: Pulling the arm out away from the coupler
creates a pinch point. Use caution when installing the
handle to avoid injury.
1.
2.
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 G2. Tighten the 1/4" nut once the
spring’s orientation is set. 2.
1.
Using the button cap screws and the lock nuts attach
the coupler handle to the arm and tighten, see figure
F1. Pull out the coupler cam handle safety pin.
FIGURE E4: Driver
side pivot arm.
FIGURE E2:
Assembled leveling kit.
FIGURE E1:
Leveling kit parts.
FIGURE F1: View looking down at side of coupler head.
FIGURE G2: Cutaway view of
driver side pivot arm and saddle.
FIGURE E3:
Base view.
FIGURE G1:
Coupler installed on base.
1/2"
MOUNTING
CLIP
1/4" LOCK NUT
WIRE
SPRING
3/8" LOCKING
FLANGE NUTS
COUPLER
ARM
COUPLER CAM
HANDLE SAFETY PIN
COUPLER
HANDLE
3/8" BUTTON HEAD
CAP SCREWS
CAB
DRIVER SIDE
PIVOT ARM
COUPLER PLATE
HAIRPIN
SADDLE HANDLES
(latched and parallel to base)
SADDLE
LOCK PIN