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Swivel Tongue Jack

Operation
Model 6400, Manufactured by Dutton-Lainson Company

To stow jack (rotate the jack from vertical to horizontal), first remove any load on the jack.
  1. Crank handle counter-clockwise to retract.
  2. Pull out on the swivel handle/locking pin and rotate jack to stowed (horizontal) position. Be certain the swivel handle/ locking pin completely re-engages the swivel plate.

To engage jack (rotate the jack from horizontal, stowed position to vertical, operating position):

  1. Pull out on the swivel handle/locking pin and rotate jack to operating (vertical) position. Be certain the swivel handle/ locking pin completely re-engages the swivel plate.
  2. Extend jack by cranking jack clockwise.
  3. When jack reaches the end of its travel, do not force handle. To do so will result in damage.
Important: When maneuvering trailer with weight on the jack, keep the jack cranked to the lowest possible position to avoid unnecessary strain.
Avoid rolling the jack over rough or soft surfaces.
CAUTION! CAUTION: Use of the jack without the swivel handle / locking pin completely engaged could result in the trailer tongue suddenly dropping.

 

Maintenance
Protect the plated finish of exposed parts by keeping jack clean and periodically applying a coating of wax.

Lubrication
With weight off the jack:
  1. Remove gear cover clip and remove gear cover by carefully prying open both sides at the same time.
  2. Remove pin holding bevel gear to top of screw.
  3. Carefully remove inner tube assembly. Do not attempt to remove screw from inner tube.
  4. Lubricate screw by working grease into entire thread.
  5. Reassemble inner tube assembly.
  6. Replace pin holding bevel gear to top of screw and grease bevel gears.
  7. Replace gear cover and clip.
CAUTION! CAUTION: This jack is not for highway use. Never tow trailer with a load on the jack.


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