Coupling to the tow vehicle – Multiquip Trailers User Manual

Page 24

page 24 — trailer • owner's manual — rev. #4 (11/08/13)

4. Disconnect the safety chains from the tow vehicle.
5. Unlock the coupler and open it.
6. Before extending jack, make certain the ground surface

below the jack pad will support the tongue load.

7. Rotate the jack handle (or crank) clockwise. This will

slowly extend the jack and transfer the weight of the

trailer tongue to the jack.

Coupling trailer to tow veHiCle

(Fifth Wheel Coupler)

Be sure the size and rating of the fifth wheel and king

pin match.

Wipe the kingpin clean and inspect it visually and by feel

for flat spots, cracks and pits. Check the condition of the

kingpin mounting in the bed of the tow vehicle.

Be sure the fifth wheel and kingpin are tightly fastened

and any welds are solid.

Be sure the fifth wheel mechanism operates freely.

preparing the Fifth wheel Kingpin

1. Lubricate the fifth wheel plate surface on the towing

vehicle with a light coat of lithium-base, waterproof

grease.

2. Be sure the brake line, electrical line, and any other

lines are clear of the coupling area.

3. Be sure the release lever on the tow vehicle is in the

open position.

4. Back tow vehicle up close to the trailer, centering the

kingpin in the slot of the fifth wheel.

stop before engaging the coupling.

warning

A worn, bent, cracked or corroded kingpin can fail while

towing, and may result in death or serious injury.

warning

A loose fifth wheel or kingpin can result in uncoupling,

leading to death or serious injury.

trailer Kingpin to tow vehicle Fifth wheel

1. Slowly back up the tow vehicle, keeping the kingpin

centered in the slot of the fifth wheel. Continue backing

up until the fifth wheel locks firmly on the kingpin

(Figure 12).

Figure 12. Trailer KIngpin to Tow Vehicle Fifth

Wheel

warning

There must be no one under the trailer before or

during the coupling operation. If the trailer drops during

coupling, death or serious injury may result.

TOWING VEHICLE

TRAILER

KING PIN

RELEASE LEVER

FIFTH WHEEL

coupling to the tow vehicle