Every evening our 5er makes these popping noises on the drivers side (occasionally on the passenger side) undercarriage/ slider areas, usually the dining/fridge area, but tonight it's in the front (we have a front LR) which shakes the 5er. Happens ever few minutes.
Any ideas??
RickandJanice said
08:48 PM Feb 3, 2014
Do you have hydraulic rams or electric motors on your jacks? If Hydraulic, it could be air in the system or if there are large drop in the temperature from day to night, could be the fluid contracting in the system. If they are electric motors, then not sure what would cause this to occur without running the motors.
MarkS said
08:53 PM Feb 3, 2014
Might be the frame contracting as it changes temp. We lived in a house once that had iron beams in the roof. In the evening it would sometimes pop several times.
DeeJee said
09:05 PM Feb 3, 2014
I think they are the new hydraulic leveling system. Never thought about the evening temps!!
0nTheRoad said
09:13 PM Feb 3, 2014
There is a known issue with the Lippert hydraulic jacks...and a fix. Here are the instructions from Lippert...
HYDRAULICS
ADDING ANTI-STICTION FLUID TO LCI HYDRAULIC SYSTEMS
Introduction:
If there is a popping noise in a Lippert Leveling system, Lippert has approved adding a quart of
anti-stiction fluid. Approved fluids are listed by brand name and fluid characteristics below:
1. Torco RFF Grade 15
2. Maxima Fork Oil Grade 15
3. Caterpillar Hydraulic Oil Additive 1U-9891
For maximum results in the shortest amount of time, please follow the preparation and procedure
exactly as written below. Failure to follow the preparation and procedure may result in delayed
resolution of the audible disturbance.
Preparation:
1. Obtain a clean container (large enough to hold a quart of fluid)
2. Obtain a fluid extraction device (siphon, turkey baster, etc.)
3. Fully retract all hydraulic cylinders and jacks.
Process:
1. Using the fluid extraction device, remove one quart of fluid from the power unit reservoir.
2. Add 1/2 quart of the specified fluid.
3. Extend all hydraulic cylinders and jacks fully.
4. Add the remaining amount of the specified fluid.
5. Fully retract all hydraulic cylinders and jacks.
6. Run the Auto-Level feature on the Level-Up system per the instructions found in the Owner's
Manual.
NOTE: If the noise persists, the addition of a second quart may be necessary. Follow steps 1
through 6.
Every evening our 5er makes these popping noises on the drivers side (occasionally on the passenger side) undercarriage/ slider areas, usually the dining/fridge area, but tonight it's in the front (we have a front LR) which shakes the 5er. Happens ever few minutes.
Any ideas??
I think they are the new hydraulic leveling system. Never thought about the evening temps!!
Contact us: Lippert Components Inc. - www.lci1.com/customerservice - Phone: (574) 537-8900 - Email:
warranty@lci1.com
LIP Sheet - 0295
HYDRAULICS
ADDING ANTI-STICTION FLUID TO LCI HYDRAULIC SYSTEMS
Introduction:
If there is a popping noise in a Lippert Leveling system, Lippert has approved adding a quart of
anti-stiction fluid. Approved fluids are listed by brand name and fluid characteristics below:
1. Torco RFF Grade 15
2. Maxima Fork Oil Grade 15
3. Caterpillar Hydraulic Oil Additive 1U-9891
For maximum results in the shortest amount of time, please follow the preparation and procedure
exactly as written below. Failure to follow the preparation and procedure may result in delayed
resolution of the audible disturbance.
Preparation:
1. Obtain a clean container (large enough to hold a quart of fluid)
2. Obtain a fluid extraction device (siphon, turkey baster, etc.)
3. Fully retract all hydraulic cylinders and jacks.
Process:
1. Using the fluid extraction device, remove one quart of fluid from the power unit reservoir.
2. Add 1/2 quart of the specified fluid.
3. Extend all hydraulic cylinders and jacks fully.
4. Add the remaining amount of the specified fluid.
5. Fully retract all hydraulic cylinders and jacks.
6. Run the Auto-Level feature on the Level-Up system per the instructions found in the Owner's
Manual.
NOTE: If the noise persists, the addition of a second quart may be necessary. Follow steps 1
through 6.