Coupling to the tow vehicle – Multiquip Trailers User Manual
Page 20

page 20 — trailer • owner's manual — rev. #4 (11/08/13)
Ball Coupler
A ball coupler (Figure 6) connects to a ball hitch that is
located on or under the rear bumper of tow vehicle. This
system of coupling a trailer to a tow vehicle is sometimes
referred to as “bumper pull.”
Figure 6. Ball Coupler
(Shown with Adjustable Channel)
When so equipped, Multiquip has utilized a ball coupler
that is suitable for the size and weight of the trailer. The
load rating of the coupler and the necessary ball size are
listed on the trailer tongue. You must provide a hitch for your
tow vehicle where the load rating of the hitch is equal to
or greater than that of your trailer. Also, the hitch ball size
must be the same as the coupler size.
pintle-eye Coupler
A pintle eye coupler (Figure 7) connects to a pintle-hook
hitch that is located on or under the rear bumper of tow
vehicle. This system of coupling a trailer to a tow vehicle
is sometimes referred to as a “lunette eye, tow ring or G.I.
hitch.”
Figure 7. Pintle-Eye Coupler
(Shown with Adjustable Channel)
BALL
COUPLER
ADJUSTABLE
CHANNEL
FLAT
WASHER
BOLT
NYLOC
NUT
ADJUSTABLE
CHANNEL
FLAT
WASHER
NYLOC
NUT
BOLT
PINTLE EYE
coupling to the tow vehicle
Use a pintle-eye coupler that is suitable for the size and
weight of the trailer. The load rating of the coupler and the
necessary pintle hitch size are listed on the trailer tongue.
You must provide a pintle-hook hitch for your tow vehicle,
where the load rating of the pintle-hook hitch and pintle-
eye coupler is equal to or greater than that of your trailer.
Also, the hitch size must be the same as the coupler size.
Fifth-wheel Kingpin
A kingpin on the trailer (Figure 8) connects to a fifth wheel
installed in the bed of the tow vehicle. This system of
coupling a trailer to a tow vehicle has a greater tongue
weight capacity than a ball coupler.
Figure 8. Fifth Wheel Kingpin
Use a fifth wheel kingpin that is suitable for the size and
weight of the trailer. The kingpin must match the fifth
wheel,and rated for the Gross Vehicle Weight Rating
(GVWR) of your trailer.
Coupling trailer to tow veHiCle
(Ball and Pintle-Eye Couplers)
Make sure that the hitch is the same size as the coupler.
Couplers are marked with their size and rating.
Wipe the hitch ball clean and inspect it visually and by
feel for flat spots, cracks and pits.
KINGPIN
NOTICE
tHe tow veHiCle anD HitCH must Have
a rateD towing CapaCitY eQual to or
greater tHan tHe trailer gross veHiCle
weigHt rating (gvwr).
warning
Coupler-to-hitch mismatch can result in uncoupling,
leading to death or serious injury.