Diagnosing And Finding Parts For Landing Gear That Blows Fuse On 2009 Keystone Montana 5th Wheel

Updated 09/08/2021 | Published 09/07/2021

Products Featured in This Question

Lippert Components Tuson High Speed 5th Wheel RV Landing Gear Motor

(50)

$408.40

Lippert Ignition Proof 5th Wheel RV Landing Gear Switch w/Harness

(16)

$105.41

Replacement Follow Leg for Keystone Montana 5th Wheel Landing Gear

(36)

$388.59

Replacement Lead Leg for Keystone Montana 5th Wheel Landing Gear

(37)

$408.70

Replacement Aluminum Gearbox for Stromberg Carlson Landing Gear

(158)

$77.12

LCD Digital Circuit Tester

(28)

$28.06

Question:

Hi, I have a 2009 Montana Fifth Wheel, model # 340RLQ. I was lifting my trailer off of my truck and then lifting it to a level position when the 30 amp fuse blew, the lifting ceased. I replaced the fuse but the lift motor still won’t work. Is there another fuse somewhere or is the motor disfunctional ?

asked by: Floyd T

Helpful Expert Reply:

Most Lippert landing gear systems just have one fuse so I don't think you will find another one in the system. The fact that you replaced the blown fuse and it still did not operate points to a few issues that could be going on. First, make sure the battery is properly charged and in good shape, then follow all the wires going from the battery to the switch, and from the switch to the battery making sure there are no pinched or bare wires. The best method for testing the circuit would be to use a tester such as # PTW2992 to verify that there is 12V getting to the motor. If you are getting 12V at the motor then either the motor is bad, the gearbox is damaged, or even the legs could be damaged. If you are not getting 12V at the motor then you have a wiring issue, bad switch, or bad battery.

If your motor is bad then you can replace it with Lippert Components Tuson High Speed 5th Wheel RV Landing Gear Motor # LC141893 and if you need a new switch then use Lippert Ignition Proof 5th Wheel RV Landing Gear Switch w/Harness # LC145236. If you find that the gearbox is damaged/binding then you can replace it with Replacement Aluminum Gearbox # LG-179015. If your legs are binding or damaged in anyway then you can replace the lead leg with Replacement Lead Leg for Keystone Montana 5th Wheel Landing Gear # LC178653 and you can replace the follow leg with Replacement Follow Leg for Keystone Montana 5th Wheel Landing Gear # LC178652.