This rebuild kit is for repairing the drive / lead leg on 5th wheel landing gear No retail box as these are purchased in bulk, no install instructions as they are OEM parts.
(1) Lead Drive Shaft - 6 7/16" Long x 1/2" diameter - "D" or half moon shaft (2) Drive Shaft Bushings (1) E-Clip (1) Drive Pin (1) Spirol Pin (1) 12T bevel Gear (1) 16T Bevel Gear (1) Shim Washer
(1) Thrust Washer
Drive or Lead Leg is the leg that motor will attach to.
Follow
or Idle Leg is used for manual cranking and/or the leg that does not
have a motor in a powered set. You will need a bar between legs to
connect the Drive (motorized Leg) and Follow Leg.
Trying to replace one
leg you will need to be sure you have the same size and gear ratio to
prevent legs from moving at different speeds.
Before replacing any items please go through the following checklist
Motor Clicking If your motor is making a clicking sound this is the safety clutch in the motor preventing damage to the motor. This is not the gear box. When clutch noise occurs, release the power switch. Failure to do so will result in damage to motor and possibly other system components.
Check for binding Your trailer legs should be cleaned and checked for debris on a regular basis. Sand and dirt will cause legs to bind.
To clean landing gear legs Extend
landing legs as far as possible, clean drop tube and inner ram tube.
Coat exposed surface of tubes with silicone spray lubricant. Coat inside of handle alignment tube with silicone spray lubricant. Oil shaft bushing in gear box and leg gear heads with SAE 30 oil. Lubricate gears in gear box and landing leg gear heads with extreme pressure grease. *Do NOT open motor to lubricate as this voids warranty.
Check for damage to legs Any damage to the legs such a bending or denting will cause binding. Check power to system Check that your batteries and power supplies are at full levels to prevent damage to the motor. Check wiring connections at battery. Clean terminals with a solution of baking soda and water. Cover with a thin coat of grease. Check wiring harness fuse, if blown replace with appropriate fuse.
Do not exceed weight limit of landing gear system Do
not use the landings legs to lift the trailer during tire changes, axle
work or trailer servicing (the trailer weight will exceed the capacity
of the landing legs). The landing legs are designed to stabilize a portion of the trailer’s weight. Support the front end of the trailer with structural stands rated for the GVWR of the trailer.
Free Shipping Method:UPSP Mail - Estimated 1 - 5 business days.
Before replacing any parts, please read the following checklist
Check For Binding and Damage
• Your trailer legs should be cleaned and checked for debris on a regular basis. Sand and dirt will cause legs to bind. See "To Clean Landing Gear Legs" • Any damage to the legs such a bending or denting will cause binding.
Check Power To System
• Check that your batteries and power supplies are at full levels to prevent damage to the motor. • Check wiring connections at battery. Clean terminals with a solution of baking soda and water. • Cover with a thin coat of grease. Check wiring harness fuse, if blown replace with appropriate fuse.
Fuses blown
• Circuit is overdrawn overloading the jack and it is drawing too much amperage • Gear Box of the jack is damaged causing the motor to overload
Check Weight Limit
• Do not exceed weight limit of landing gear system • Do not use the landings legs to lift the trailer during tire changes, axle work or trailer servicing (the trailer weight will exceed the capacity of the landing legs). • The landing legs are designed to stabilize a portion of the trailer’s weight. • Support the front end of the trailer with structural stands rated for the GVWR of the trailer. • If your motor is making a clicking sound this is the safety clutch in the motor preventing damage to the motor. This is not the gear box. • When clutch noise occurs, release the power switch. Failure to do so will result in damage to motor and possibly other system components.
To Clean Landing Gear Legs:
• Extend landing legs as far as possible, clean drop tube and inner ram tube. • Coat exposed surface of tubes with silicone spray lubricant. • Coat inside of handle alignment tube with silicone spray lubricant. • Oil shaft bushing in gear box and leg gear heads with SAE 30 oil. • Lubricate gears in gear box and landing leg gear heads with extreme pressure grease. • Do NOT open motor housing or motor gear box as this voids warranty.
Remove the top of the leg and run the lube down on the sides to flush out any debris.
CAUTION & SAFETY WARNINGS
• Read, understand, and follow all instructions before installing and using any product. •NEVER allow anyone unfamiliar with the operating instructions to use this product. •Failure to follow these warnings and instructions can result in property damage and/or serious bodily injury. •Warranty does not cover install by customer or non-certified technician. No warranty, guarantee or liability is stated or implied on any product beyond the manufacturer. •Class A Customs is not responsible for any damages caused from the use of this or any product we carry.
• Read, understand, and follow all instructions provided by the manufacturer. • Owner or operator must never position any part of their body under any portion of the jack or the load being supported or allow anyone else to be positioned under the load being supported. Disregard could cause property damage and/or serious bodily injury. • Warn all persons to stand clear of vehicle. • Keep hands and clothing away from moving parts.
• Never attempt to lift or level without having both foot plates properly installed. • When cranking jack or coupling trailer, secure trailer from rolling. • These landing gear jacks are designed for vertical loading. Excessive side forces must be avoided. • Never attempt to adjust the drop legs when the landing gear jacks are under load. • Never drop trailer off the hitch. • Do Not exceed maximum rated capacity. • Make certain the drop leg safety retaining pins are fully inserted through both sides of the inner tube and the drop leg tube before using the landing gear jacks. • NEVER use the landings legs to lift the trailer during tire changes, axle work or trailer servicing (the trailer weight will exceed the capacity of the landing legs). The landing legs are designed to stabilize a portion of the trailer’s weight. Support the front end of the trailer with structural stands rated for the GVWR of the trailer. • Most switches are not ignition protected. DO NOT install these in areas which require ignition protected devices (such as battery or propane tank storage compartments). Only the Ignition Protected Switch is approved for installation in these compartments. • Retract jack legs and drop legs fully before moving the trailer. • Do not retract past the STOP label. • Failure to follow these warnings and instructions can result in property damage and/or serious bodily injury.
The following items must be done before operating the levelers.
• Warn all persons to stand clear of vehicle. • Keep hands and clothing away from moving parts. • Park the vehicle on a reasonably level site. Check for rocks, holes, or other obstructions. • Soft/spongy ground may allow levelers to sink. Levelers must be on firm solid ground or surface prior to operation. • Ensure area below and around leveler is clear of obstructions. • Chock both sides of trailer wheels before operating landing legs. • Both legs must touch the ground or the surface at the same time. • Do not extend the slide-outs until coach is level. • Never exceed rated capacity of landing legs.
CAUTION
• When clutch noise occurs, release the switch. Failure to do so may also destroy the clutch, in which case the entire power kit will have to be replaced. • Potential damage to the trailer frame may occur if legs or power kits are operated unevenly. • Front of trailer must remain horizontal.
Video For Information Purposes Only
Class A Customs does not own video and makes no claim to copyright
MANUAL OPERATING INSTRUCTIONS
For manual operation of fifth wheel landing gear on a trailer not equipped with a 12VDC power kit, or if power is not available, proceed as follows:
Drop Leg Operation:
• Disengage drop leg safety retaining pin to lower or raise foot plate to desired position, return the safety retaining pin making sure it is fully inserted through both the inner tube and the drop leg tube before using the jack. • Keep hands and clothing away from moving parts.
To Extend:
• Attach the manual crank handle and crank until the inner tube is halfway to the ground. • Remove the safety retaining pin from the drop leg tube. Let the drop tube fall to the ground and re-pin in the nearest adjustment hole. • Continue extending landing legs until pin box disengages from the hitch and the trailer’s weight is completely removed from the hitch. • When there is sufficient clearance between the pin box and hitch, move tow vehicle clear of trailer. Never drop trailer off the hitch. • Lower trailer until it is level. • Remove and store crank handle.
To Retract:
• Perform “To Extend” instructions in reverse. • Be certain the landing gear legs are fully retracted; drop legs are re-pinned in the fully retracted position; and foot plate is higher than the lowest point of the trailer to prevent dragging. • Remove and store the crank handle.
POWER OPERATING INSTRUCTIONS
• On a trailer equipped with a Venture Mfg. Co. 12VDC Power Kit follow the same procedures as “MANUAL OPERATING INSTRUCTIONS” except, operate the switch control to EXT (extend) or RET (retract) as indicated. • Power Kit is equipped with an overload clutch and a 30 AMP fuse. If fuse blows during normal operation replace fuse with standard 30 AMP AGC type fuse. • Verify battery is fully charged before attempting further operation. • If clutch slips it may indicate you have reached the extend or retract limits of the jacks OR the trailer weight has exceeded the max rated load of the Landing Gear system. • When clutch noise occurs, release the switch. Failure to do so may also destroy the clutch, in which case the entire power kit will have to be replaced. • Items stored inside/on the trailer can greatly affect the weight applied to Landing Gear system. If clutch consistently slips during normal operation, redistribute items stored in the trailer.
Landing Gear Legs
Overall Leg Dimension Approximately 32” Overall Retracted (top of Leg to Bottom of Leg - does not include adding foot pad) Approximately 48" Long Fully Extended (top of Leg to Bottom of Leg - does not include adding foot pad)
Painted Black Section 29-1/2” long x 2-1/2” wide Inner Leg Tube Approximately 2" wide (shaft for foot pad)
Tabs Distance 15-1/2” Inner Edge to Inner Edge 17-1/2” Outer Edge to Outer Edge
NO Mounting Hardware
Do Not Exceed Capacity Single Motor System 2,500 lbs. per leg / 5,000 lbs. system Dual Motor System 3,000 lbs. per leg / 6,000 lbs. system
Venture Landing Gear Motor
Venture was acquired by Lippert, parts may have old or new part #, it varies. Venture Part #'s M-PK9000/M-9000/M-9000-PK Lippert Part #LCI PN 142178
12-volt power supply only Two wire installation - one ground and one lead - Reversible (reverse the polarity of the wires) Turns 5,500 R.P.M. Internal Gear Box Turns at 190 R.P.M. 12V Gear Box providing approximately 150 in lbs of output torque. Clutch Protected to prevent system overloading *See Install Instructions Output Shaft is designed to accept 1/2" shaft with roll pin (this is the industry standard)
Mounting Bolts included
Opening the motor or gear box voids all warranty.
• One Switch Per Motor Needed
Motor makes clicking sound • This is not the gear box. • If clutch slips it may indicate you have reached the extend or retract limits of the jacks OR the trailer weight has exceeded the max rated load of the Landing Gear system. • When clutch noise occurs, release the switch. Failure to do so may also destroy the clutch, in which case the entire power kit will have to be replaced.
Fuses blown • Circuit is overdrawn overloading the jack and it is drawing too much amperage • Gear Box of the jack is damaged causing the motor to overload
3:1 Reduction Gear Box
3:1 gear ratio Will work with manual and electric systems. Cast Aluminum Casing Heavy Duty Cast Gears
5th Wheel Landing Gear Switch / Harness
Used to raise and lower the legs of the landing gear. 12g wire and 30-amp inline fuse 4 wire Install (2 for motor / 2 for battery) Heavy duty watertight switch Switch is labeled extend and retract for no guessing operation NO Mounting Hardware One Switch Per Motor Needed
• If switch is running in opposite direction reverse wires to reverse polarity.
Fuses blown • Circuit is overdrawn overloading the jack and it is drawing too much amperage • Gear Box of the jack is damaged causing the motor to overload
Frequently Asked Questions
I already have a motor or gear box can I buy one of your and use it with mine?
You will need to verify all measurements and parts before purchasing, we are not aware of what system you have and cannot give recommendations.
If your motor or gear box does not look like ours, it will not work with your current system. Motor and gear box are for normal RV and trailer usage, heavy duty trailers such as road equipment have different landing gear leg systems.
Your current motor RPM, speed, and capacity may not match this motor, this would cause uneven lifting of legs.
Your current gear box dimensions, mounting system and gear ratio may not match, this would not fit or cause uneven lifting of legs.
If you have a motor or reduction gear box with plastic gears, you would want to replace all motors and reduction gear boxes after verify all measurements and parts will fit your legs.
The landing gear motor part number looks different!
Venture was acquired by Lippert, parts may have old or new part #, it varies. Venture Part #'s M-PK9000/M-9000/M-9000-PK Lippert Part #LCI PN 142178
My motor and reduction gear box are good, I have cleaned my legs and checked for binding but I am still having problems.
You may need a new rebuild kit for the gears inside of the legs. To find if your legs have the same gears inside you would need to open the leg to compare.
You can not replace the gears of one leg without verifying they are the same gears, the legs will move at different rates causing them to be uneven.
