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NHTSA ID Number: 10162070
Manufacturer Communication Number: TI-118
Summary
Basic Purge Procedure for Hydraulic Pump Units
BASIC PURGE PROCEDURE FOR HYDRAULIC PUMP UNITS
HYDRAULICS
Purpose
This document describes the simple steps required to purge LCI hydraulic systems. This information applies to hydraulic landing gear, hydraulic leveling jacks and hydraulic slide-outs. The basic purge procedure to bleed the LCI Hydraulic Systems is performed without the use of any tools. The system’s own function purges the air from the hydraulic lines and cylinders by simply running the pump.
Start with all hydraulic components in the fully retracted position. This means that all jacks, landing gear, stabilizers and slide-outs are brought back inside the unit as if it were ready to travel.
- Find the hydraulic pump location and note the amount of fluid currently in the reservoir. The fluid level should be about 1/4″ from the top of the reservoir and no more than 1/2″ from the top.
NOTE: When checking the fluid level after making sure that all hydraulic components are retracted, note if there are any bubbles, froth or foam on top of the fluid. This is an indication that air has been pushed back to the reservoir when the hydraulic components were retracted in the last cycle. Wait 15-20 minutes for the foam to dissipate before beginning the purge process. Also note that the fluid on the top, with air, will often have a lighter, more pink shade than the fluid on the bottom.
- If there is no froth or foam in the reservoir and the fluid is not within 1/2″ of the top, fill the reservoir to within the level described in step 2.
CAUTION
If units are equipped with electric stabilizers, fully retract stabilizer legs before proceeding.
- With the fluid level full and no foam in the reservoir, begin cycling the hydraulic system.
- MOTORIZED – Fully extend leveling jacks. If the coach has hydraulic slide-outs, extend all slide-outs. Once all leveling jacks and slide-outs are extended, immediately retract all slide-outs and then all leveling jacks .
- 5TH WHEELS – Extend hydraulic landing gear until footpads contact the ground, extend rear leveling jacks to touch the ground, extend all slide-outs. Retract all slide-outs immediately, retract rear leveling jacks and then retract hydraulic landing gear.
NOTE: Purging of the hydraulic system on 5th Wheels should be performed with the trailer coupled to the tow vehicle, a kingpin stand under the pin box or jack stands under the front portion of the frame.
- 5TH WHEELS WITH LEVEL-UP – 5th Wheels with the level-up 6-Point leveling system have the unique ability to have the hydraulic landing gear and leveling jacks extend fully. These particular 5th Wheels can be purged in the same fashion as motorized coaches.
| WARNING |
Do not attempt to purge this system without the front end of the 5th Wheel safely supported. Doing so could result in death or serious bodily injury.
| WARNING |
The unit MUST be supported per manufacturer’s recommendations before performing this procedure. Failure to do so may result in death or serious injury.
- Check the reservoir for foam. If foam is present, see NOTE above and repeat steps 3 and 4. Repeat these steps until no foam is present in the reservoir. If no foam is present, the system is purged of air.
As a supplier of components to the RV industry, safety, education and customer satisfaction are our primary concerns. Should you have any questions, please do not hesitate to contact us at (574) 537-8900 or by email at customerservice@lcil .com. Self-help tips, technical documents, product videos and a training class schedule are available at lci1 .com or by downloading the MyLCl app.
Rev: 06.24.19
CCD-0001901
TI-118
https://www.nhtsa.gov/recalls?nhtsaId=10162070
https://static.nhtsa.gov/odi/tsbs/2019/MC-10162070-0001.pdf
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- Formulated with premium base stocks for added resistance to thermal breakdown
- Outstanding wear protection
- Excellent resistance to system rust and oil oxidation
- Maintains excellent water separating properties
- Excellent foam control and air release deliver consistent system operation
- Formulated with premium base stocks for added resistance to thermal breakdown
- Outstanding wear protection
- Excellent resistance to system rust and oil oxidation
- Maintains excellent water separating properties
- Excellent foam control and air release deliver consistent system operation
- Formulated with highly refined group ii base stocks for added resistance to thermal breakdown
- Superior wear protection to protect critical components
- Excellent frictional properties for smooth-shifting, excellent anti-shudder performance
- J20c equivalent, protection against varnish and sludge formation
- Superior thermal stability and oxidation resistance, good seal compatibility
- Meets and exceeds all OEM specifications for power shift transmissions
- Extends equipment and fluid life
- Reduces downtime and major overhaul
- Formulated with premium base stocks for added resistance to thermal breakdown
- Outstanding wear protection
- Excellent resistance to system rust and oil oxidation
- Maintains excellent water separating properties
- Excellent foam control and air release deliver consistent system operation
- Reduces the operating temperature of hydraulic systems
- Conditions old seals and O-rings to stop and prevent future leaks
- Well suited for use in equipment with wet brakes
- Removes varnish and restores pressure for more efficient operation
- Compatible with both synthetic and conventional hydraulic fluids
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Last update on 2024-06-10 / Affiliate links / Images from Amazon Product Advertising API
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