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Coupling to the tow vehicle – Multiquip Trailers User Manual

Page 20

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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.