Rev: 09.15.20 Page 10 CCD-0001531
Maintenance-General
1. Remove dirt and road debris from leveling jacks and landing gear and stabilizer struts (if equipped) as
needed.
2. If jacks are down for extended periods, it is recommended to spray exposed jack tubes with a spray
lubricant every three months for protection. If the 5th Wheel is located in a salty air environment, it is
recommended to spray the jack tubes every 4 - 6 weeks.
3. Each month, check that the fluid level is within
¼"
of the fill spout lip while leveling jacks and slide-
outs are fully retracted.
Note: Always fill the reservoir with the leveling jacks and slide-outs fully retracted. Filling the reservoir
when leveling jacks and slide-outs are extended will cause the reservoir to overflow into its
compartment when the leveling jacks and slide-outs are retracted.
4. Inspect and clean all of the 5th Wheel's power and electrical connections prior to the first use of the
5th Wheel at the start of the traveling season and prior to storing the 5th Wheel. If corrosion is evident,
clean all corrosion with a wire brush, then apply dielectric grease to the connections.
5. Make sure to turn the manual override set screw on the valve back to the counterclockwise position
after extending or retracting the landing gear or leveling jacks.
Fluid Recommendation
Automatic transmission fluid (ATF) with Dexron®III or Mercon® V or a blend of both is recommended by
Lippert Components, Inc. For a listof approved fluid specifications, see TI-188. To obtain this Technical
Information sheet on-line, go to http https://lci-support-lci4a3lcd. Then click on the Technical Information
sheets tab. Look for TI-188: Hydraulic Operation Fluid Recommendation within the listing.
Note: In colder temperatures (less than 10 ° F) the jacks may extend and retract slowly due to the fluid's
molecular nature. For cold weather operation, fluid specially formulated for low temperatures may
be desirable.
Preventive Maintenance
1. Check hydraulic fluid in reservoir every 12 months. If fluid is a clear, red color, do not change. If fluid is
milky, pink and murky, and not clear red in color, drain reservoir and add new fluid. Hydraulic fluid in
reservoir should be changed a minimum of every five years.
Note: Check the fluid only when all the jacks are fully retracted.
Note: When checking the hydraulic fluid level, fill to within ¼" to ½" of fill spout.
2. Inspect and clean all power unit electrical connections every 12 months. If corrosion is evident, use a
small amount of lubricant to remove corrosion. Contacts must be cleaned with a non-residue cleaner
prior to use. LCI recommends the use of an electrical contact cleaner spray.
3. Remove dirt and road debris from jacks as needed.
4. If jacks are down for extended periods, it is recommended to spray exposed jack rods with a dry
silicone lubricant every three months for protection. If the trailer is located in a salty environment, it is
recommended to spray the rods every four to six weeks.
The coach should be supported at both front and rear axles with jack stands before working
underneath. Failure to do so may result in death, serious personal injury or severe product or
property damage.
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